├── .gitignore ├── .idea ├── encodings.xml ├── misc.xml ├── modules.xml ├── runConfigurations.xml └── vcs.xml ├── LICENSE ├── README.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── example │ │ └── viewnews │ │ └── ExampleInstrumentedTest.java │ ├── main │ ├── AndroidManifest.xml │ ├── assets │ │ └── litepal.xml │ ├── java │ │ └── com │ │ │ └── example │ │ │ └── viewnews │ │ │ ├── MainActivity.java │ │ │ ├── NewsBean.java │ │ │ ├── NewsCollectBean.java │ │ │ ├── NewsFragment.java │ │ │ ├── NewsInfoBean.java │ │ │ ├── TabAdapter.java │ │ │ ├── WebActivity.java │ │ │ ├── tools │ │ │ ├── ActivityCollector.java │ │ │ ├── BaseActivity.java │ │ │ └── DataCleanManager.java │ │ │ └── usermodel │ │ │ ├── Article.java │ │ │ ├── ArticleActivity.java │ │ │ ├── ArticleAdapter.java │ │ │ ├── ArticleDetailActivity.java │ │ │ ├── EditArticleActivity.java │ │ │ ├── FavoriteNewsListAdapter.java │ │ │ ├── LoginActivity.java │ │ │ ├── RegisterActivity.java │ │ │ ├── UserDetailActivity.java │ │ │ ├── UserFavoriteActivity.java │ │ │ └── UserInfo.java │ └── res │ │ ├── drawable-v24 │ │ └── ic_launcher_foreground.xml │ │ ├── drawable-xxhdpi │ │ ├── avatar.jpg │ │ ├── ic_checked.png │ │ ├── ic_clear.png │ │ ├── ic_delete.png │ │ ├── ic_edit_article.png │ │ ├── ic_exit.png │ │ ├── ic_menu.png │ │ ├── ic_return_left.png │ │ ├── ic_share.png │ │ ├── ic_star_border_favourite_no.png │ │ ├── ic_star_border_favourite_yes.png │ │ ├── ic_uncheck.png │ │ ├── ic_vertical_align_top.png │ │ ├── nav_articles.png │ │ ├── nav_clear_cache.png │ │ ├── nav_edit.png │ │ ├── nav_favorite.png │ │ ├── nav_personinfo.png │ │ ├── nav_publish.png │ │ ├── nav_settings.png │ │ ├── nav_switch.png │ │ └── no_login_avatar.png │ │ ├── drawable │ │ └── ic_launcher_background.xml │ │ ├── layout │ │ ├── activity_article.xml │ │ ├── activity_article_detail.xml │ │ ├── activity_edit_article.xml │ │ ├── activity_login.xml │ │ ├── activity_main.xml │ │ ├── activity_register.xml │ │ ├── activity_user_detail.xml │ │ ├── activity_user_favorite.xml │ │ ├── activity_web.xml │ │ ├── item_article.xml │ │ ├── item_favorite_news.xml │ │ ├── item_layout01.xml │ │ ├── item_layout02.xml │ │ ├── item_layout03.xml │ │ ├── nav_header.xml │ │ └── news_list.xml │ │ ├── menu │ │ ├── nav_menu.xml │ │ ├── tool_webbottom.xml │ │ ├── toolbar.xml │ │ └── toolbar_webview.xml │ │ ├── mipmap-anydpi-v26 │ │ ├── ic_launcher.xml │ │ └── ic_launcher_round.xml │ │ ├── mipmap-hdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-mdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxhdpi │ │ ├── ic_launcher.png │ │ ├── ic_launcher_foreground.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ └── values │ │ ├── colors.xml │ │ ├── strings.xml │ │ └── styles.xml │ └── test │ └── java │ └── com │ └── example │ └── viewnews │ └── ExampleUnitTest.java ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── resultImage ├── articledetail.jpeg ├── clearcache.jpeg ├── collectionlist.jpeg ├── editarticle.jpeg ├── editnickanme.jpeg ├── feedback.jpeg ├── login.jpeg ├── myarticle.jpeg ├── personalinfo.jpeg ├── register.jpeg └── viewpage.jpeg └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | # Built application files 2 | *.apk 3 | *.ap_ 4 | 5 | # Files for the ART/Dalvik VM 6 | *.dex 7 | 8 | # Java class files 9 | *.class 10 | 11 | # Generated files 12 | bin/ 13 | gen/ 14 | out/ 15 | 16 | # Gradle files 17 | .gradle/ 18 | build/ 19 | 20 | # Local configuration file (sdk path, etc) 21 | local.properties 22 | 23 | # Proguard folder generated by Eclipse 24 | proguard/ 25 | 26 | # Log Files 27 | *.log 28 | 29 | # Android Studio Navigation editor temp files 30 | .navigation/ 31 | 32 | # Android Studio captures folder 33 | captures/ 34 | 35 | # IntelliJ 36 | *.iml 37 | .idea/workspace.xml 38 | .idea/tasks.xml 39 | .idea/gradle.xml 40 | .idea/assetWizardSettings.xml 41 | .idea/dictionaries 42 | .idea/libraries 43 | .idea/caches 44 | 45 | # Keystore files 46 | # Uncomment the following line if you do not want to check your keystore files in. 47 | #*.jks 48 | 49 | # External native build folder generated in Android Studio 2.2 and later 50 | .externalNativeBuild 51 | 52 | # Google Services (e.g. APIs or Firebase) 53 | google-services.json 54 | 55 | # Freeline 56 | freeline.py 57 | freeline/ 58 | freeline_project_description.json 59 | 60 | # fastlane 61 | fastlane/report.xml 62 | fastlane/Preview.html 63 | fastlane/screenshots 64 | fastlane/test_output 65 | fastlane/readme.md 66 | -------------------------------------------------------------------------------- /.idea/encodings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 9 | -------------------------------------------------------------------------------- /.idea/modules.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /.idea/vcs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # viewnews 2 | 安卓课设开发项目-看点新闻App 3 | 演示传送门：[av79880165](https://www.bilibili.com/video/av79880165/) 4 | 5 | ## 项目运行效果图 6 | 7 | 注册界面登录界面个人信息界面 8 | 编写文章界面文章详情界面我的文章界面 9 | 我的收藏界面新闻详情界面 10 | 11 | 清除缓存反馈事件 12 | 13 | 14 | 15 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 29 5 | buildToolsVersion "29.0.2" 6 | defaultConfig { 7 | applicationId "com.example.viewnews" 8 | minSdkVersion 15 9 | targetSdkVersion 29 10 | versionCode 1 11 | versionName "1.0" 12 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | } 21 | 22 | dependencies { 23 | implementation fileTree(dir: 'libs', include: ['*.jar']) 24 | implementation 'androidx.appcompat:appcompat:1.1.0' 25 | implementation 'androidx.constraintlayout:constraintlayout:1.1.3' 26 | 27 | // 添加NavigationView控件的依赖库 28 | implementation 'com.google.android.material:material:1.0.0' 29 | 30 | //添加图片圆形化控件的依赖库 31 | implementation 'de.hdodenhof:circleimageview:2.1.0' 32 | 33 | // 添加recyclerview控件的依赖库 34 | implementation 'androidx.recyclerview:recyclerview:1.1.0' 35 | 36 | // 添加GSON库的依赖 37 | implementation 'com.google.code.gson:gson:2.8.5' 38 | 39 | //添加LitePal数据存储依赖 40 | implementation 'org.litepal.android:java:3.0.0' 41 | 42 | //添加Glide处理图片库的依赖 43 | implementation 'com.github.bumptech.glide:glide:3.7.0' 44 | 45 | // 添加Material Dialogs弹窗美化的依赖库 46 | // core版：可以创建basic, list, single/multi choice, progress, input等弹框。 47 | implementation 'com.afollestad.material-dialogs:core:0.9.6.0' 48 | 49 | // 添加第3方弹出窗 50 | implementation 'com.github.f0ris.sweetalert:library:1.6.2' 51 | 52 | // 引入卡片式布局的依赖库 53 | implementation 'androidx.cardview:cardview:1.0.0' 54 | 55 | implementation 'androidx.annotation:annotation:1.1.0' 56 | implementation 'androidx.lifecycle:lifecycle-extensions:2.1.0' 57 | testImplementation 'junit:junit:4.12' 58 | androidTestImplementation 'androidx.test:runner:1.2.0' 59 | androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0' 60 | } -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /app/src/androidTest/java/com/example/viewnews/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews; 2 | 3 | import android.content.Context; 4 | 5 | import androidx.test.InstrumentationRegistry; 6 | import androidx.test.runner.AndroidJUnit4; 7 | 8 | import org.junit.Test; 9 | import org.junit.runner.RunWith; 10 | 11 | import static org.junit.Assert.*; 12 | 13 | /** 14 | * Instrumented test, which will execute on an Android device. 15 | * 16 | * @see Testing documentation 17 | */ 18 | @RunWith(AndroidJUnit4.class) 19 | public class ExampleInstrumentedTest { 20 | @Test 21 | public void useAppContext() { 22 | // Context of the app under test. 23 | Context appContext = InstrumentationRegistry.getTargetContext(); 24 | 25 | assertEquals("com.example.viewnews", appContext.getPackageName()); 26 | } 27 | } 28 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | 7 | 8 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 29 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | -------------------------------------------------------------------------------- /app/src/main/assets/litepal.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/NewsCollectBean.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews; 2 | 3 | import org.litepal.crud.LitePalSupport; 4 | 5 | // 新闻收藏列表 6 | public class NewsCollectBean extends LitePalSupport { 7 | // 用户账号 8 | private String userIdNumer; 9 | // 新闻id 10 | private String newsId; 11 | // 新闻标题 12 | private String newSTitle; 13 | // 新闻连接 14 | private String newsUrl; 15 | 16 | public String getUserIdNumer() { 17 | return userIdNumer; 18 | } 19 | 20 | public void setUserIdNumer(String userIdNumer) { 21 | this.userIdNumer = userIdNumer; 22 | } 23 | 24 | public String getNewsId() { 25 | return newsId; 26 | } 27 | 28 | public void setNewsId(String newsId) { 29 | this.newsId = newsId; 30 | } 31 | 32 | 33 | public String getNewSTitle() { 34 | return newSTitle; 35 | } 36 | 37 | public void setNewSTitle(String newSTitle) { 38 | this.newSTitle = newSTitle; 39 | } 40 | 41 | public String getNewsUrl() { 42 | return newsUrl; 43 | } 44 | 45 | public void setNewsUrl(String newsUrl) { 46 | this.newsUrl = newsUrl; 47 | } 48 | 49 | @Override 50 | public String toString() { 51 | return "NewsCollectBean{" + 52 | "userIdNumer='" + userIdNumer + '\'' + 53 | ", newsId='" + newsId + '\'' + 54 | ", newSTitle='" + newSTitle + '\'' + 55 | ", newsUrl='" + newsUrl + '\'' + 56 | '}'; 57 | } 58 | } 59 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/NewsFragment.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews; 2 | 3 | import android.annotation.SuppressLint; 4 | import android.content.Intent; 5 | import android.os.AsyncTask; 6 | import android.os.Bundle; 7 | import android.os.Handler; 8 | import android.os.Message; 9 | import android.util.Log; 10 | import android.view.LayoutInflater; 11 | import android.view.View; 12 | import android.view.ViewGroup; 13 | import android.widget.AdapterView; 14 | import android.widget.ListView; 15 | 16 | import androidx.annotation.NonNull; 17 | import androidx.annotation.Nullable; 18 | import androidx.fragment.app.Fragment; 19 | import androidx.swiperefreshlayout.widget.SwipeRefreshLayout; 20 | 21 | import com.google.android.material.floatingactionbutton.FloatingActionButton; 22 | import com.google.gson.Gson; 23 | 24 | import org.litepal.LitePal; 25 | 26 | import java.io.BufferedReader; 27 | import java.io.IOException; 28 | import java.io.InputStream; 29 | import java.io.InputStreamReader; 30 | import java.net.HttpURLConnection; 31 | import java.net.MalformedURLException; 32 | import java.net.ProtocolException; 33 | import java.net.URL; 34 | import java.util.ArrayList; 35 | import java.util.List; 36 | 37 | //每个tab下的碎片Fragment 38 | public class NewsFragment extends Fragment { 39 | //新闻列表 40 | private ListView newsListView; 41 | //下拉刷新 42 | private SwipeRefreshLayout swipeRefreshLayout; 43 | //新闻子项 44 | private List contentItems = new ArrayList<>(); 45 | 46 | private static final int UPNEWS_INSERT = 0; 47 | 48 | //用来保存当前tab的名字 49 | private String currentTabName = "top"; 50 | 51 | //分页查询参数，每页显示10条新闻数据 52 | private int pageNo = 0, pageSize = 10; 53 | 54 | //每一个Fragment页面都有一个浮动按钮，用于快速回到顶部 55 | private FloatingActionButton fab; 56 | 57 | //添加此注解的原理：https://blog.csdn.net/androidsj/article/details/79865091 58 | @SuppressLint("HandlerLeak") 59 | private Handler newsHandler = new Handler() { 60 | //主线程 61 | @Override 62 | public void handleMessage(Message msg) { 63 | switch (msg.what) { 64 | case UPNEWS_INSERT: 65 | //从服务器来获取NewsBean数据 66 | //Log.d("从服务器来获取NewsBean数据", "handleMessage: " + msg.obj); 67 | contentItems = ((NewsBean) msg.obj).getResult().getData(); 68 | //构造一个适配器来填充新闻列表 69 | TabAdapter adapter = new TabAdapter(getActivity(), contentItems); 70 | newsListView.setAdapter(adapter); 71 | //当adapter中的数据被更改后必须马上调用notifyDataSetChanged予以更新。 72 | adapter.notifyDataSetChanged(); 73 | //从服务器获取的数据缓存到本地数据库，注意去重插入的数据 74 | NewsInfoBean newsInfo; 75 | for (int i = 0, len = contentItems.size(); i < len; ++i) { 76 | newsInfo = new NewsInfoBean(contentItems.get(i)); 77 | //测试是否请求的数据有重复 78 | //List beans = LitePal.where("uniquekey = ?", contentItems.get(i).getUniquekey()).find(NewsInfoBean.class); 79 | //Log.d("请求数据后", "handleMessage: " + beans.size()); 80 | //将数据缓存到本地数据库 81 | newsInfo.save(); 82 | } 83 | break; 84 | default: 85 | break; 86 | } 87 | } 88 | }; 89 | 90 | //创建Fragment被添加到活动中时回调，且只会被调用一次 91 | @Override 92 | public void onCreate(@Nullable Bundle savedInstanceState) { 93 | super.onCreate(savedInstanceState); 94 | } 95 | 96 | //每次创建，绘制该Fragment的View组件时回调，将显示的View返回 97 | @Nullable 98 | @Override 99 | public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { 100 | //加载新闻列表 101 | View view = inflater.inflate(R.layout.news_list, container, false); 102 | //获取每个实例之后，返回当前视图 103 | newsListView = (ListView) view.findViewById(R.id.newsListView); 104 | //tv = (TextView) view.findViewById(R.id.text_response); 105 | fab = (FloatingActionButton) view.findViewById(R.id.fab); 106 | swipeRefreshLayout = (SwipeRefreshLayout) view.findViewById(R.id.swipe_refresh); 107 | return view; 108 | } 109 | 110 | //当NewsFragment所在的Activity启动完成后调用，声明周期紧接在onCreateView()之后 111 | //使用此注解的讲解：https://blog.csdn.net/androidsj/article/details/79865091 112 | //@SuppressLint("HandlerLeak") 113 | @Override 114 | public void onActivityCreated(@Nullable Bundle savedInstanceState) { 115 | super.onActivityCreated(savedInstanceState); 116 | //getActivity():获得Fragment依附的Activity对象。（具体讲解：https://blog.csdn.net/y874961524/article/details/53773095） 117 | //getActivity()和onAttach()结合使用的生命周期相关讲解：https://blog.csdn.net/u013446591/article/details/72730767 118 | //getActivity()为空的情况(API<23时并不会去调用此方法)，讲解1：https://blog.csdn.net/u012811342/article/details/80493352 119 | //讲解2：https://blog.csdn.net/qq_31010739/article/details/83348085 120 | //onAttach(getActivity());//该方法已弃用，查看源码即可 121 | onAttach(getContext()); 122 | Log.d("上下文：", "Context: " + getContext()); 123 | Log.d("NewsFragment", "Activity: " + getActivity()); 124 | Bundle bundle = getArguments(); 125 | //获取键对应的值，参数2表示默认填充的值，其用法和Intent差不多，但又有区别 126 | //data = bundle.getString("name", "top"); 127 | //tv.setText(data); 128 | final String category = bundle.getString("name", "top"); 129 | currentTabName = category; 130 | Log.d("点击tab小标题为：", "onActivityCreated: " + category); 131 | //实现置顶功能 132 | fab.setOnClickListener(new View.OnClickListener() { 133 | @Override 134 | public void onClick(View v) { 135 | //滚动到第一个可见的item位置，下标为0，具体讲解：https://www.jianshu.com/p/a5cd3cff2f1b 136 | newsListView.smoothScrollToPosition(0); 137 | } 138 | }); 139 | //实现下拉刷新的功能 140 | //设置下拉刷新进度条的颜色 141 | swipeRefreshLayout.setColorSchemeResources(R.color.colorRed); 142 | //实现下拉刷新的监听器 143 | swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() { 144 | @Override 145 | public void onRefresh() { 146 | threadLoaderData(category); 147 | } 148 | }); 149 | 150 | //异步加载数据，传入条目 151 | getDataFromNet(category); 152 | 153 | // 轻度按监听新闻列表子项 154 | newsListView.setOnItemClickListener(new AdapterView.OnItemClickListener() { 155 | @Override 156 | public void onItemClick(AdapterView parent, View view, int position, long id) { 157 | Log.d("子项的数据为", "onItemClick: " + contentItems.get(position)); 158 | //获取点击条目的路径，传值显示WebView页面 159 | String url = contentItems.get(position).getUrl(); 160 | Log.d("当前新闻子项的连接是：", "onItemClick: " + url); 161 | String uniquekey = contentItems.get(position).getUniquekey(); 162 | String newsTitle = contentItems.get(position).getTitle(); 163 | Intent intent = new Intent(getActivity(), WebActivity.class); 164 | intent.putExtra("pageUrl", url); 165 | intent.putExtra("uniquekey", uniquekey); 166 | intent.putExtra("news_title", newsTitle); 167 | System.out.println("当前账号2222222222222：" + MainActivity.currentUserId); 168 | startActivity(intent); 169 | } 170 | }); 171 | } 172 | 173 | private void threadLoaderData(final String category) { 174 | new Thread(new Runnable() { 175 | @Override 176 | public void run() { 177 | try { 178 | //沉睡1.5s，本地刷新很快，以防看不到刷新效果 179 | Thread.sleep(1500); 180 | } catch (InterruptedException e) { 181 | e.printStackTrace(); 182 | } 183 | //若快速点击tab，则会出现getActivity()为空的情况，但是第一次加载肯定不会出错，所以将要拦截，以防app崩溃 184 | if (getActivity() == null) 185 | return; 186 | //此处的用法：runOnUiThread必须是在主线程中调用，getActivity()获取主线程所在的活动，切换子线程到主线程 187 | getActivity().runOnUiThread(new Runnable() { 188 | @Override 189 | public void run() { 190 | //重新生成数据，传入tab条目 191 | loaderRefreshData(category); 192 | //表示刷新事件结束，并隐藏刷新进度条 193 | swipeRefreshLayout.setRefreshing(false); 194 | } 195 | }); 196 | } 197 | }).start(); 198 | } 199 | 200 | //加载数据，实现从本地数据库中读取数据刷新到newsListView的适配器中 201 | private void loaderRefreshData(final String category) { 202 | //top，shehui，guonei，guoji，yule，tiyu，junshi，keji，caijing，shishang 203 | String categoryName = "头条"; 204 | if (category.equals("top")) { 205 | categoryName = "头条"; 206 | } else if (category.equals("shehui")) { 207 | categoryName = "社会"; 208 | } else if (category.equals("guonei")) { 209 | categoryName = "国内"; 210 | } else if (category.equals("guoji")) { 211 | categoryName = "国际"; 212 | } else if (category.equals("yule")) { 213 | categoryName = "娱乐"; 214 | } else if (category.equals("tiyu")) { 215 | categoryName = "体育"; 216 | } else if (category.equals("junshi")) { 217 | categoryName = "军事"; 218 | } else if (category.equals("keji")) { 219 | categoryName = "科技"; 220 | } else if (category.equals("caijing")) { 221 | categoryName = "财经"; 222 | } else if (category.equals("shishang")) { 223 | categoryName = "时尚"; 224 | } 225 | //页数加1 226 | ++pageNo; 227 | List dataBeanList = new ArrayList<>(); 228 | NewsBean.ResultBean.DataBean bean = null; 229 | int offsetV = (pageNo - 1) * pageSize; 230 | Log.d("pageNo", "页数为: " + pageNo); 231 | Log.d("offsetV", "偏移量为: " + offsetV); 232 | Log.d("offsetV", "以下开始查询"); 233 | List beanList = LitePal.where("category = ?", categoryName).limit(pageSize).offset(offsetV).find(NewsInfoBean.class); 234 | Log.d("TAG", "查询的数量为：" + beanList.size()); 235 | //若查询的结果为0，则重新定位页数为1 236 | if (beanList.size() == 0) { 237 | pageNo = 1; 238 | offsetV = (pageNo - 1) * pageSize; 239 | beanList = LitePal.where("category = ?", categoryName).limit(pageSize).offset(offsetV).find(NewsInfoBean.class); 240 | Log.d("分页查询", "loaderRefreshData: 已经超过最大页数，归零并重新查询！"); 241 | } 242 | Log.d("刷新查到的数据大小", "run: " + beanList.size()); 243 | for (int i = 0, len = beanList.size(); i < len; ++i) { 244 | bean = new NewsBean.ResultBean.DataBean(); 245 | bean.setDataBean(beanList.get(i)); 246 | dataBeanList.add(bean); 247 | Log.d("刷新id：", "run: " + beanList.get(i)); 248 | } 249 | contentItems = dataBeanList; 250 | //将dataBeanList赋值给全局的contentItems，否则点击新闻子项会出错,并且contentItems之前要清空，不然起不到更新视图的作用 251 | TabAdapter adapter = new TabAdapter(getActivity(), contentItems); 252 | newsListView.setAdapter(adapter); 253 | //当adapter中的数据被更改后必须马上调用notifyDataSetChanged予以更新。 254 | adapter.notifyDataSetChanged(); 255 | } 256 | 257 | //异步消息处理机制 258 | private void getDataFromNet(final String data) { 259 | @SuppressLint("StaticFieldLeak") 260 | AsyncTask task = new AsyncTask() { 261 | //子线程 262 | @Override //储备key：547ee75ef186fc55a8f015e38dcfdb9a 263 | protected String doInBackground(Void... params) { // 自己的key：af2d37d2ed31f7a074f1d49b5460a0b5，可以替换下面请求中的key 264 | String path = "http://v.juhe.cn/toutiao/index?type=" + data + "&key=af2d37d2ed31f7a074f1d49b5460a0b5"; 265 | URL url = null; 266 | try { 267 | url = new URL(path); 268 | HttpURLConnection connection = (HttpURLConnection) url.openConnection(); 269 | //设置请求方式 270 | connection.setRequestMethod("GET"); 271 | //设置读取超时的毫秒数 272 | connection.setReadTimeout(5000); 273 | //设置连接超时时间 274 | connection.setConnectTimeout(5000); 275 | //获取状态码 276 | int responseCode = connection.getResponseCode(); 277 | if (responseCode == HttpURLConnection.HTTP_OK) { // 200 278 | //获取服务器返回的输入流 279 | InputStream inputStream = connection.getInputStream(); 280 | String json = streamToString(inputStream, "utf-8"); 281 | //返回任务的执行结果 282 | return json; 283 | } else { 284 | //返回的状态码不是200 285 | System.out.println(responseCode); 286 | return 404 + data; 287 | } 288 | } catch (MalformedURLException e) { 289 | e.printStackTrace(); 290 | } catch (ProtocolException e) { 291 | e.printStackTrace(); 292 | } catch (IOException e) { 293 | e.printStackTrace(); 294 | } 295 | return 404 + data; 296 | } 297 | 298 | //当给后台任务执行完毕并通过return语句返回时，此方法将被调用，返回来的数据可以进行一些UI操作，并将处理的参数传入 299 | protected void onPostExecute(final String result) { 300 | new Thread(new Runnable() { 301 | @Override 302 | public void run() { 303 | //查看状态码是否为200，若不是（开子线程），然后从本地加载相应的数据 304 | NewsBean newsBean = null; 305 | //不包括endIndex 306 | Log.d("后台处理的数据为：", "run: " + result); 307 | if (!result.substring(0, 3).equals("404")) { 308 | newsBean = new Gson().fromJson(result, NewsBean.class); 309 | System.out.println(newsBean.getError_code()); 310 | if ("0".equals("" + newsBean.getError_code())) { 311 | //obtainmessage()方法是从消息池中拿来一个msg，不需要另开辟空间new，new需要重新申请，效率低，obtianmessage可以循环利用； 312 | Message msg = newsHandler.obtainMessage(); 313 | msg.what = UPNEWS_INSERT; 314 | msg.obj = newsBean; 315 | //发送一个通知来填充数据，因为安卓不允许在子线程中进行UI操作 316 | newsHandler.sendMessage(msg); 317 | } else { 318 | //{"resultcode":"112","reason":"超过每日可允许请求次数!","result":null,"error_code":10012} 319 | //实现从数据库加载数据 320 | Log.d("超过请求次数或者其他原因", "run: 现在从本地数据库中获取"); 321 | Log.d("当前tab名字为：", "run: " + currentTabName); 322 | threadLoaderData(currentTabName); 323 | } 324 | } else { 325 | threadLoaderData(result.substring(3)); 326 | } 327 | } 328 | }).start(); 329 | } 330 | 331 | //当后台任务中调用了publishProgress(Progress...)方法后，onProgressUpdate方法很快被执行 332 | @Override 333 | protected void onProgressUpdate(Void... values) { 334 | super.onProgressUpdate(values); 335 | } 336 | }; 337 | //启动异步加载任务 338 | task.execute(); 339 | } 340 | 341 | //输入流转化成字符串 342 | private String streamToString(InputStream inputStream, String charset) { 343 | try { 344 | //创建一个使用命名字符集的InputStreamReader。 InputStreamReader(InputStream in, String charsetName) 345 | InputStreamReader inputStreamReader = new InputStreamReader(inputStream, charset); 346 | //构造一个字符输入流对象 347 | BufferedReader bufferedReader = new BufferedReader(inputStreamReader); 348 | String s = null; 349 | StringBuilder builder = new StringBuilder(); 350 | while ((s = bufferedReader.readLine()) != null) { 351 | builder.append(s); 352 | } 353 | //关闭流 354 | bufferedReader.close(); 355 | inputStreamReader.close(); 356 | return builder.toString(); 357 | } catch (IOException e) { 358 | e.printStackTrace(); 359 | } 360 | return null; 361 | } 362 | } -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/NewsInfoBean.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews; 2 | 3 | import org.litepal.crud.LitePalSupport; 4 | 5 | public class NewsInfoBean extends LitePalSupport { 6 | 7 | private String uniquekey; 8 | private String title; 9 | private String date; 10 | private String category; 11 | private String author_name; 12 | private String url; 13 | private String thumbnail_pic_s; 14 | private String thumbnail_pic_s02; 15 | private String thumbnail_pic_s03; 16 | 17 | public NewsInfoBean(NewsBean.ResultBean.DataBean dataBean) { 18 | this.uniquekey = dataBean.getUniquekey(); 19 | this.title = dataBean.getTitle(); 20 | this.date = dataBean.getDate(); 21 | this.category = dataBean.getCategory(); 22 | this.author_name = dataBean.getAuthor_name(); 23 | this.url = dataBean.getUrl(); 24 | this.thumbnail_pic_s = dataBean.getThumbnail_pic_s(); 25 | this.thumbnail_pic_s02 = dataBean.getThumbnail_pic_s02(); 26 | this.thumbnail_pic_s03 = dataBean.getThumbnail_pic_s03(); 27 | } 28 | 29 | public String getUniquekey() { 30 | return uniquekey; 31 | } 32 | 33 | public void setUniquekey(String uniquekey) { 34 | this.uniquekey = uniquekey; 35 | } 36 | 37 | public String getTitle() { 38 | return title; 39 | } 40 | 41 | public void setTitle(String title) { 42 | this.title = title; 43 | } 44 | 45 | public String getDate() { 46 | return date; 47 | } 48 | 49 | public void setDate(String date) { 50 | this.date = date; 51 | } 52 | 53 | public String getCategory() { 54 | return category; 55 | } 56 | 57 | public void setCategory(String category) { 58 | this.category = category; 59 | } 60 | 61 | public String getAuthor_name() { 62 | return author_name; 63 | } 64 | 65 | public void setAuthor_name(String author_name) { 66 | this.author_name = author_name; 67 | } 68 | 69 | public String getUrl() { 70 | return url; 71 | } 72 | 73 | public void setUrl(String url) { 74 | this.url = url; 75 | } 76 | 77 | public String getThumbnail_pic_s() { 78 | return thumbnail_pic_s; 79 | } 80 | 81 | public void setThumbnail_pic_s(String thumbnail_pic_s) { 82 | this.thumbnail_pic_s = thumbnail_pic_s; 83 | } 84 | 85 | public String getThumbnail_pic_s02() { 86 | return thumbnail_pic_s02; 87 | } 88 | 89 | public void setThumbnail_pic_s02(String thumbnail_pic_s02) { 90 | this.thumbnail_pic_s02 = thumbnail_pic_s02; 91 | } 92 | 93 | public String getThumbnail_pic_s03() { 94 | return thumbnail_pic_s03; 95 | } 96 | 97 | public void setThumbnail_pic_s03(String thumbnail_pic_s03) { 98 | this.thumbnail_pic_s03 = thumbnail_pic_s03; 99 | } 100 | 101 | @Override 102 | public String toString() { 103 | return "NewsInfoBean{" + 104 | "uniquekey='" + uniquekey + '\'' + 105 | ", title='" + title + '\'' + 106 | ", date='" + date + '\'' + 107 | ", category='" + category + '\'' + 108 | ", author_name='" + author_name + '\'' + 109 | ", url='" + url + '\'' + 110 | ", thumbnail_pic_s='" + thumbnail_pic_s + '\'' + 111 | ", thumbnail_pic_s02='" + thumbnail_pic_s02 + '\'' + 112 | ", thumbnail_pic_s03='" + thumbnail_pic_s03 + '\'' + 113 | '}'; 114 | } 115 | } -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/TabAdapter.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews; 2 | 3 | import android.content.Context; 4 | 5 | import android.view.View; 6 | import android.view.ViewGroup; 7 | import android.widget.BaseAdapter; 8 | import android.widget.ImageView; 9 | import android.widget.TextView; 10 | 11 | import com.bumptech.glide.Glide; 12 | import com.bumptech.glide.load.engine.DiskCacheStrategy; 13 | 14 | import java.util.List; 15 | 16 | //自定义新闻列表的适配器 17 | public class TabAdapter extends BaseAdapter { 18 | 19 | private List list; 20 | 21 | private Context context; 22 | 23 | //设置正常加载图片的个数 24 | private int IMAGE_01 = 0; 25 | 26 | private int IMAGE_02 = 1; 27 | 28 | private int IMAGE_03 = 2; 29 | 30 | private int VIEW_COUNT = 3; 31 | 32 | public TabAdapter(Context context, List list) { 33 | this.context = context; 34 | this.list = list; 35 | } 36 | 37 | @Override 38 | public int getCount() { 39 | return list.size(); 40 | } 41 | 42 | @Override 43 | public Object getItem(int position) { 44 | return list.get(position); 45 | } 46 | 47 | @Override 48 | public long getItemId(int position) { 49 | return position; 50 | } 51 | 52 | //得到不同item的总数 53 | @Override 54 | public int getViewTypeCount() { 55 | return VIEW_COUNT; 56 | } 57 | 58 | //得到当前新闻子项item的类型 59 | @Override 60 | public int getItemViewType(int position) { 61 | if (list.get(position).getThumbnail_pic_s() != null && 62 | list.get(position).getThumbnail_pic_s02() != null && 63 | list.get(position).getThumbnail_pic_s03() != null) { 64 | return IMAGE_03; 65 | } else if (list.get(position).getThumbnail_pic_s() != null && 66 | list.get(position).getThumbnail_pic_s02() != null) { 67 | return IMAGE_02; 68 | } 69 | return IMAGE_01; 70 | } 71 | 72 | //提升ListView的运行效率，参数convertView用于将之前加载好的布局进行缓存，以便以后可以重用：https://blog.csdn.net/xiao_ziqiang/article/details/50812471 73 | @Override 74 | public View getView(int position, View convertView, ViewGroup parent) { 75 | if (getItemViewType(position) == IMAGE_01) { 76 | Image01_ViewHolder holder; 77 | if (convertView == null) { 78 | convertView = View.inflate(context, R.layout.item_layout01, null); 79 | holder = new Image01_ViewHolder(); 80 | //查找控件 81 | holder.author_name = (TextView) convertView.findViewById(R.id.author_name); 82 | holder.title = (TextView) convertView.findViewById(R.id.title); 83 | holder.image = (ImageView) convertView.findViewById(R.id.image); 84 | 85 | convertView.setTag(holder); 86 | } else { 87 | holder = (Image01_ViewHolder) convertView.getTag(); 88 | } 89 | 90 | //获取数据重新赋值 91 | holder.title.setText(list.get(position).getTitle()); 92 | holder.author_name.setText(list.get(position).getAuthor_name()); 93 | 94 | /** 95 | * DiskCacheStrategy.NONE： 表示不缓存任何内容。 96 | */ 97 | Glide.with(context) 98 | .load(list.get(position).getThumbnail_pic_s()) 99 | .diskCacheStrategy(DiskCacheStrategy.NONE) 100 | .placeholder(R.mipmap.ic_launcher) 101 | .error(R.mipmap.ic_launcher) 102 | .into(holder.image); 103 | 104 | 105 | } else if (getItemViewType(position) == IMAGE_02) { 106 | Image02_ViewHolder holder; 107 | if (convertView == null) { 108 | convertView = View.inflate(context, R.layout.item_layout02, null); 109 | holder = new Image02_ViewHolder(); 110 | //查找控件 111 | holder.image001 = (ImageView) convertView.findViewById(R.id.image001); 112 | holder.image002 = (ImageView) convertView.findViewById(R.id.image002); 113 | holder.title = (TextView) convertView.findViewById(R.id.title); 114 | //将ViewHolder对象存储在View中 115 | convertView.setTag(holder); 116 | 117 | } else { 118 | holder = (Image02_ViewHolder) convertView.getTag(); 119 | } 120 | //获取数据重新赋值 121 | holder.title.setText(list.get(position).getTitle()); 122 | Glide.with(context) 123 | .load(list.get(position).getThumbnail_pic_s()) 124 | .diskCacheStrategy(DiskCacheStrategy.NONE) 125 | .placeholder(R.mipmap.ic_launcher) 126 | .error(R.mipmap.ic_launcher) 127 | .into(holder.image001); 128 | 129 | Glide.with(context) 130 | .load(list.get(position).getThumbnail_pic_s02()) 131 | .diskCacheStrategy(DiskCacheStrategy.NONE) 132 | .placeholder(R.mipmap.ic_launcher) 133 | .error(R.mipmap.ic_launcher) 134 | .into(holder.image002); 135 | 136 | } else { 137 | Image03_ViewHolder holder; 138 | if (convertView == null) { 139 | convertView = View.inflate(context, R.layout.item_layout03, null); 140 | holder = new Image03_ViewHolder(); 141 | //查找控件 142 | holder.image01 = (ImageView) convertView.findViewById(R.id.image01); 143 | holder.image02 = (ImageView) convertView.findViewById(R.id.image02); 144 | holder.image03 = (ImageView) convertView.findViewById(R.id.image03); 145 | holder.title = (TextView) convertView.findViewById(R.id.title); 146 | convertView.setTag(holder); 147 | } else { 148 | holder = (Image03_ViewHolder) convertView.getTag(); 149 | } 150 | //获取数据重新赋值 151 | holder.title.setText(list.get(position).getTitle()); 152 | 153 | Glide.with(context) 154 | .load(list.get(position).getThumbnail_pic_s()) 155 | .diskCacheStrategy(DiskCacheStrategy.NONE) 156 | .placeholder(R.mipmap.ic_launcher) 157 | .error(R.mipmap.ic_launcher) 158 | .into(holder.image01); 159 | 160 | Glide.with(context) 161 | .load(list.get(position).getThumbnail_pic_s02()) 162 | .diskCacheStrategy(DiskCacheStrategy.NONE) 163 | .placeholder(R.mipmap.ic_launcher) 164 | .error(R.mipmap.ic_launcher) 165 | .into(holder.image02); 166 | 167 | Glide.with(context) 168 | .load(list.get(position).getThumbnail_pic_s03()) 169 | .diskCacheStrategy(DiskCacheStrategy.NONE) 170 | .placeholder(R.mipmap.ic_launcher) 171 | .error(R.mipmap.ic_launcher) 172 | .into(holder.image03); 173 | 174 | } 175 | return convertView; 176 | } 177 | 178 | //新增3个内部类 179 | class Image01_ViewHolder { 180 | TextView title, author_name; 181 | ImageView image; 182 | } 183 | 184 | class Image02_ViewHolder { 185 | TextView title; 186 | ImageView image001, image002; 187 | } 188 | 189 | class Image03_ViewHolder { 190 | TextView title; 191 | ImageView image01, image02, image03; 192 | } 193 | } -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/WebActivity.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews; 2 | import androidx.appcompat.app.ActionBar; 3 | import androidx.appcompat.widget.Toolbar; 4 | import android.annotation.SuppressLint; 5 | import android.content.Intent; 6 | import android.graphics.Bitmap; 7 | import android.net.http.SslError; 8 | import android.os.Bundle; 9 | import android.text.TextUtils; 10 | import android.view.Menu; 11 | import android.view.MenuItem; 12 | import android.webkit.SslErrorHandler; 13 | import android.webkit.WebChromeClient; 14 | import android.webkit.WebSettings; 15 | import android.webkit.WebView; 16 | import android.webkit.WebViewClient; 17 | import android.widget.Toast; 18 | import com.example.viewnews.tools.BaseActivity; 19 | import org.litepal.LitePal; 20 | import java.util.List; 21 | 22 | //若需要启用Javascript，则抑制其警告 23 | @SuppressLint("SetJavaScriptEnabled") 24 | public class WebActivity extends BaseActivity { 25 | 26 | private WebView webView; 27 | 28 | private Toolbar navToolbar, commentToolBar; 29 | 30 | private String urlData, pageUniquekey, pageTtile; 31 | 32 | @Override 33 | protected void onCreate(Bundle savedInstanceState) { 34 | super.onCreate(savedInstanceState); 35 | setContentView(R.layout.activity_web); 36 | webView = (WebView) findViewById(R.id.webView); 37 | navToolbar = (Toolbar) findViewById(R.id.toolbar_webView); 38 | commentToolBar = (Toolbar) findViewById(R.id.toolbar_webComment); 39 | //将底部评论框的toolbar放在主界面上 40 | findViewById(R.id.toolbar_webComment).bringToFront(); 41 | } 42 | 43 | //活动由不可见变为可见时调用 44 | @Override 45 | protected void onStart() { 46 | super.onStart(); 47 | // 获取html页面的连接 48 | urlData = getIntent().getStringExtra("pageUrl"); 49 | pageUniquekey = getIntent().getStringExtra("uniquekey"); 50 | pageTtile = getIntent().getStringExtra("news_title"); 51 | 52 | System.out.println("当前新闻id为：" + pageUniquekey); 53 | System.out.println("当前新闻标题为：" + pageTtile); 54 | 55 | // 通过WebView中的getSettings方法获得一个WebSettings对象 56 | WebSettings settings = webView.getSettings(); 57 | 58 | // 详细讲解：https://www.jianshu.com/p/0d7d429bd216 59 | // 开启javascript：h5页要一般都有js,设置为true才允许h5页面执行js，但开启js非常耗内存，经常会导致oom， 60 | // 为了解决这个问题，可以在onStart方法中开启，在onStop中关闭。 61 | settings.setJavaScriptEnabled(true); 62 | 63 | //设置支持缩放 64 | settings.setSupportZoom(true); 65 | // 设置出现缩放工具。若为false，则该WebView不可缩放 66 | settings.setBuiltInZoomControls(true); 67 | // 设置允许js弹出alert对话框 68 | settings.setJavaScriptCanOpenWindowsAutomatically(true); 69 | 70 | // 设置webview推荐使用的窗口，使html界面自适应屏幕 71 | // 原因讲解：https://blog.csdn.net/SCHOLAR_II/article/details/80614486 72 | settings.setUseWideViewPort(true); 73 | // 设置WebView底层的布局算法，参考LayoutAlgorithm#NARROW_COLUMNS，将会重新生成WebView布局 74 | settings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.NORMAL); 75 | // 设置缩放至屏幕的大小 76 | settings.setLoadWithOverviewMode(true); 77 | // 隐藏webview缩放按钮 78 | settings.setDisplayZoomControls(false); 79 | // 加载网页连接 80 | webView.loadUrl(urlData); 81 | 82 | // Toolbar通过setSupportActionBar(toolbar) 被修饰成了actionbar。 83 | setSupportActionBar(commentToolBar); 84 | // 设置菜单栏标题 85 | navToolbar.setTitle("看点新闻"); 86 | setSupportActionBar(navToolbar); 87 | commentToolBar.inflateMenu(R.menu.tool_webbottom); 88 | commentToolBar.setTitle("感谢观看"); 89 | 90 | webView.setWebViewClient(new WebViewClient() { 91 | 92 | @Override 93 | public void onPageStarted(WebView view, String url, Bitmap favicon) { 94 | super.onPageStarted(view, url, favicon); 95 | // 页面开始加载时就去查看收藏表中是否有对应的记录，组合键（账号和新闻号） 96 | List beanList = LitePal.where("userIdNumer = ? AND newsId = ?", MainActivity.currentUserId == null ? "" : MainActivity.currentUserId, pageUniquekey).find(NewsCollectBean.class); 97 | // 获取收藏按钮 98 | MenuItem u = commentToolBar.getMenu().getItem(0); 99 | if(beanList.size() > 0) { 100 | u.setIcon(R.drawable.ic_star_border_favourite_yes); 101 | } else { 102 | u.setIcon(R.drawable.ic_star_border_favourite_no); 103 | } 104 | } 105 | 106 | // 在页面加载结束时调用 107 | @Override 108 | public void onPageFinished(WebView view, String url) { 109 | super.onPageFinished(view, url); 110 | // 通过查看每个新闻的网页发现网页广告的div样式的选择器为body > div.top-wrap.gg-item.J-gg-item 然后去除这个样式，使其加载网页时去掉广告 111 | view.loadUrl("javascript:function setTop1(){document.querySelector('body > div.top-wrap.gg-item.J-gg-item').style.display=\"none\";}setTop1();"); 112 | view.loadUrl("javascript:function setTop4(){document.querySelector('body > a.piclick-link').style.display=\"none\";}setTop4();"); 113 | view.loadUrl("javascript:function setTop2(){document.querySelector('#news_check').style.display=\"none\";}setTop2();"); 114 | view.loadUrl("javascript:function setTop3(){document.querySelector('body > div.articledown-wrap gg-item J-gg-item').style.display=\"none\";}setTop3();"); 115 | } 116 | 117 | // 重写此方法可以让webView处理https请求。 118 | public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) { 119 | // 默认的处理方式，WebView变成空白页 120 | // handler.cancel(); 121 | // 接受所有网站的证书，忽略SSL错误，执行访问网页 122 | handler.proceed(); 123 | } 124 | }); 125 | 126 | // 重写执行执行去广告的js代码 127 | webView.setWebChromeClient(new WebChromeClient(){ 128 | // 每次网页加载进度改变时，就会执行一次js代码，保证广告一出来就被干掉 129 | // 缺点也很明显，会执行很多次无效的js代码。 130 | @Override 131 | public void onProgressChanged(WebView view, int newProgress) { 132 | super.onProgressChanged(view, newProgress); 133 | // 去除加载热点新闻 134 | view.loadUrl("javascript:function setTop1(){document.querySelector('body > div.top-wrap.gg-item.J-gg-item').style.display=\"none\";}setTop1();"); 135 | view.loadUrl("javascript:function setTop4(){document.querySelector('body > a.piclick-link').style.display=\"none\";}setTop4();"); 136 | view.loadUrl("javascript:function setTop2(){document.querySelector('#news_check').style.display=\"none\";}setTop2();"); 137 | view.loadUrl("javascript:function setTop3(){document.querySelector('body > div.articledown-wrap gg-item J-gg-item').style.display=\"none\";}setTop3();"); 138 | } 139 | }); 140 | 141 | 142 | commentToolBar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() { 143 | @Override 144 | public boolean onMenuItemClick(MenuItem menuItem) { 145 | switch (menuItem.getItemId()) { 146 | case R.id.news_share: 147 | // 这里有bug，点击之后没反应 148 | Intent intent = new Intent(Intent.ACTION_SEND); 149 | intent.putExtra(Intent.EXTRA_SUBJECT, urlData); 150 | // 分享的文本类型 151 | intent.setType("text/plain"); 152 | intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 153 | startActivity(Intent.createChooser(intent, getTitle())); 154 | break; 155 | case R.id.news_collect: 156 | //下一步实现点击收藏功能，以及用户查看收藏功能 157 | if(!TextUtils.isEmpty(MainActivity.currentUserId)) { 158 | // 先去查询一下是否有收藏过，然后加载每条新闻的时候查看是否已经被收藏，若被收藏，则将收藏按钮背景色设置为红色，否则为白色 159 | MenuItem u = commentToolBar.getMenu().getItem(0); 160 | List bean = LitePal.where("userIdNumer = ? AND newsId = ?", MainActivity.currentUserId, pageUniquekey).find(NewsCollectBean.class); 161 | NewsCollectBean currentNews = null; 162 | System.out.println(bean); 163 | String answer = ""; 164 | if(bean.size() > 0) { 165 | System.out.println("111111111111111"); 166 | int i = LitePal.deleteAll(NewsCollectBean.class, "userIdNumer = ? AND newsId = ?", MainActivity.currentUserId, pageUniquekey); 167 | if(i > 0) { 168 | answer = "取消收藏！"; 169 | u.setIcon(R.drawable.ic_star_border_favourite_no); 170 | } else answer = "取消失败！"; 171 | System.out.println("6666666666666666"); 172 | } else { 173 | currentNews = new NewsCollectBean(); 174 | currentNews.setUserIdNumer(MainActivity.currentUserId); 175 | currentNews.setNewSTitle(pageTtile); 176 | currentNews.setNewsId(pageUniquekey); 177 | currentNews.setNewsUrl(urlData); 178 | boolean isSave = currentNews.save(); 179 | System.out.println("收藏的新闻：" + currentNews); 180 | if(isSave){ 181 | answer = "收藏成功！"; 182 | u.setIcon(R.drawable.ic_star_border_favourite_yes); 183 | } 184 | else answer = "收藏失败！"; 185 | } 186 | Toast.makeText(WebActivity.this , answer, Toast.LENGTH_SHORT).show(); 187 | } else { 188 | Toast.makeText(WebActivity.this, "请先登录后再收藏！", Toast.LENGTH_SHORT).show(); 189 | } 190 | break; 191 | } 192 | return true; 193 | } 194 | }); 195 | ActionBar actionBar = getSupportActionBar(); 196 | if (actionBar != null) { 197 | actionBar.setDisplayHomeAsUpEnabled(true); 198 | //设置返回图标 199 | actionBar.setHomeAsUpIndicator(R.drawable.ic_return_left); 200 | } 201 | } 202 | 203 | // 活动不可见时关闭脚本，否则可能会导致oom 204 | @Override 205 | protected void onStop() { 206 | super.onStop(); 207 | webView.getSettings().setJavaScriptEnabled(false); 208 | } 209 | 210 | // 此方法用于初始化菜单，其中menu参数就是即将要显示的Menu实例。 返回true则显示该menu, false则不显示; 211 | @Override 212 | public boolean onCreateOptionsMenu(Menu menu) { 213 | 214 | getMenuInflater().inflate(R.menu.toolbar_webview, menu); 215 | 216 | // SearchManager提供全局搜索服务 217 | // SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE); 218 | // 通过MenuItem得到SearchView 219 | // SearchView searchView = (SearchView) menu.findItem(R.id.news_search).getActionView(); 220 | 221 | // searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName())); 222 | // 搜索框文字变化监听 223 | /*searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { 224 | @Override 225 | public boolean onQueryTextSubmit(String query) { 226 | // 在文字改变的时候回调，query是改变之后的文字 227 | Toast.makeText(WebActivity.this, query, Toast.LENGTH_SHORT).show(); 228 | return false; 229 | } 230 | 231 | //文字提交的时候回调 232 | @Override 233 | public boolean onQueryTextChange(String newText) { 234 | Toast.makeText(WebActivity.this, newText, Toast.LENGTH_LONG).show(); 235 | return false; 236 | } 237 | });*/ 238 | return true; 239 | } 240 | 241 | 242 | @Override 243 | public boolean onOptionsItemSelected(MenuItem item) { 244 | switch (item.getItemId()) { 245 | // 左上角的id 246 | case android.R.id.home: 247 | Intent returnIntent = new Intent(); 248 | setResult(RESULT_OK, returnIntent); 249 | // 结束当前活动 250 | WebActivity.this.finish(); 251 | break; 252 | case R.id.news_setting: 253 | Toast.makeText(this, "夜间模式", Toast.LENGTH_SHORT).show(); 254 | break; 255 | case R.id.news_feedback: 256 | Toast.makeText(this, "举报！", Toast.LENGTH_SHORT).show(); 257 | break; 258 | default: 259 | break; 260 | } 261 | return true; 262 | } 263 | } -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/tools/ActivityCollector.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews.tools; 2 | 3 | import android.app.Activity; 4 | 5 | import java.util.ArrayList; 6 | import java.util.List; 7 | 8 | public class ActivityCollector { 9 | 10 | public static List activities = new ArrayList<>(); 11 | 12 | public static void addActivity(Activity activity) { 13 | activities.add(activity); 14 | } 15 | 16 | public static void removeActivity(Activity activity) { 17 | activities.remove(activity); 18 | } 19 | 20 | public static void finishAll() { 21 | for (Activity activity : activities) { 22 | if (!activity.isFinishing()) { 23 | activity.finish(); 24 | } 25 | } 26 | } 27 | } 28 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/tools/BaseActivity.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews.tools; 2 | 3 | import androidx.appcompat.app.AppCompatActivity; 4 | 5 | import android.os.Bundle; 6 | import android.util.Log; 7 | 8 | // BaseActivity不需要注册 9 | public class BaseActivity extends AppCompatActivity { 10 | 11 | @Override 12 | protected void onCreate(Bundle savedInstanceState) { 13 | super.onCreate(savedInstanceState); 14 | Log.d("BaseActivity", getClass().getSimpleName()); 15 | ActivityCollector.addActivity(this); 16 | } 17 | 18 | @Override 19 | protected void onDestroy() { 20 | super.onDestroy(); 21 | ActivityCollector.removeActivity(this); 22 | } 23 | } 24 | 25 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/tools/DataCleanManager.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews.tools; 2 | 3 | import android.content.Context; 4 | import android.os.Environment; 5 | import android.text.TextUtils; 6 | 7 | import java.io.File; 8 | import java.math.BigDecimal; 9 | 10 | // 本应用数据清除管理器 11 | public class DataCleanManager { 12 | /** 13 | * 清除本应用内部缓存(/data/data/com.xxx.xxx/cache) 14 | * 15 | * @param context 16 | */ 17 | public static void cleanInternalCache(Context context) { 18 | System.out.println("进来了:" + context.getCacheDir()); 19 | deleteFilesByDirectory(context.getCacheDir()); 20 | } 21 | 22 | /** 23 | * 清除本应用所有数据库(/data/data/com.xxx.xxx/databases) 24 | * 25 | * @param context 26 | */ 27 | public static void cleanDatabases(Context context) { 28 | deleteFilesByDirectory(new File("/data/data/" 29 | + context.getPackageName() + "/databases")); 30 | } 31 | 32 | /** 33 | * 清除本应用SharedPreference(/data/data/com.xxx.xxx/shared_prefs) 34 | * 35 | * @param context 36 | */ 37 | public static void cleanSharedPreference(Context context) { 38 | deleteFilesByDirectory(new File("/data/data/" 39 | + context.getPackageName() + "/shared_prefs")); 40 | } 41 | 42 | /** 43 | * 按名字清除本应用数据库 * 44 | * 45 | * @param context 46 | * @param dbName 47 | */ 48 | public static void cleanDatabaseByName(Context context, String dbName) { 49 | context.deleteDatabase(dbName); 50 | } 51 | 52 | /** 53 | * 清除/data/data/com.xxx.xxx/files下的内容 54 | * 55 | * @param context 56 | */ 57 | public static void cleanFiles(Context context) { 58 | deleteFilesByDirectory(context.getFilesDir()); 59 | } 60 | 61 | /** 62 | * 清除外部cache下的内容(/mnt/sdcard/android/data/com.xxx.xxx/cache) 63 | * 64 | * @param context 65 | */ 66 | public static void cleanExternalCache(Context context) { 67 | if (Environment.getExternalStorageState().equals( 68 | Environment.MEDIA_MOUNTED)) { 69 | deleteFilesByDirectory(context.getExternalCacheDir()); 70 | } 71 | } 72 | /** 73 | * 清除自定义路径下的文件，使用需小心，请不要误删。而且只支持目录下的文件删除 74 | * 75 | * @param filePath 76 | * */ 77 | public static void cleanCustomCache(String filePath) { 78 | deleteFilesByDirectory(new File(filePath)); 79 | } 80 | 81 | /** 82 | * 清除本应用所有的数据 83 | * 84 | * @param context 85 | * @param filepath 86 | */ 87 | public static void cleanApplicationData(Context context, String... filepath) { 88 | cleanInternalCache(context); 89 | cleanExternalCache(context); 90 | cleanDatabases(context); 91 | cleanSharedPreference(context); 92 | cleanFiles(context); 93 | if (filepath == null) { 94 | return; 95 | } 96 | for (String filePath : filepath) { 97 | cleanCustomCache(filePath); 98 | } 99 | } 100 | 101 | /** 102 | * 删除方法 这里只会删除某个文件夹下的文件，如果传入的directory是个文件，将不做处理 103 | * 104 | * @param file 105 | */ 106 | private static void deleteFilesByDirectory(File file) { 107 | System.out.println("进来删除了？6666"); 108 | if (file.isDirectory()) { 109 | File zFiles[] = file.listFiles(); 110 | for (File file2 : zFiles) { 111 | deleteFilesByDirectory(file2); 112 | } 113 | System.out.println("要删除的目录名为：" + file.getName()); 114 | System.out.println("删除成功？" + file.delete()); 115 | } else { 116 | System.out.println("要删除的文件名为：" + file.getName()); 117 | System.out.println("删除成功？" + file.delete()); 118 | } 119 | 120 | } 121 | 122 | // 获取文件 123 | //Context.getExternalFilesDir() --> SDCard/Android/data/你的应用的包名/files/ 目录，一般放一些长时间保存的数据 124 | //Context.getExternalCacheDir() --> SDCard/Android/data/你的应用包名/cache/目录，一般存放临时缓存数据 125 | public static long getFolderSize(File file) throws Exception { 126 | long size = 0; 127 | try { 128 | File[] fileList = file.listFiles(); 129 | for (int i = 0; i < fileList.length; i++) { 130 | // 如果下面还有文件 131 | if (fileList[i].isDirectory()) { 132 | size = size + getFolderSize(fileList[i]); 133 | } else { 134 | size = size + fileList[i].length(); 135 | } 136 | } 137 | } catch (Exception e) { 138 | e.printStackTrace(); 139 | } 140 | return size; 141 | } 142 | 143 | /** 144 | * 删除指定目录下文件及目录 145 | * 146 | * @param deleteThisPath 147 | * @param filePath 148 | * @return 149 | */ 150 | public static void deleteFolderFile(String filePath, boolean deleteThisPath) { 151 | if (!TextUtils.isEmpty(filePath)) { 152 | try { 153 | File file = new File(filePath); 154 | if (file.isDirectory()) {// 如果下面还有文件 155 | File files[] = file.listFiles(); 156 | for (int i = 0; i < files.length; i++) { 157 | System.out.println("递归"); 158 | deleteFolderFile(files[i].getAbsolutePath(), true); 159 | } 160 | } 161 | if (deleteThisPath) { 162 | if (!file.isDirectory()) {// 如果是文件，删除 163 | file.delete(); 164 | } else { // 目录 165 | if (file.listFiles().length == 0) { // 目录下没有文件或者目录，删除 166 | file.delete(); 167 | } 168 | } 169 | } 170 | } catch (Exception e) { 171 | e.printStackTrace(); 172 | } 173 | } 174 | } 175 | 176 | /** 177 | * 格式化单位 178 | * 179 | * @param size 180 | * @return 181 | */ 182 | public static String getFormatSize(double size) { 183 | double kiloByte = size / 1024; 184 | if (kiloByte < 1) { 185 | return size + "Byte"; 186 | } 187 | 188 | double megaByte = kiloByte / 1024; 189 | if (megaByte < 1) { 190 | BigDecimal result1 = new BigDecimal(Double.toString(kiloByte)); 191 | return result1.setScale(2, BigDecimal.ROUND_HALF_UP) 192 | .toPlainString() + "KB"; 193 | } 194 | 195 | double gigaByte = megaByte / 1024; 196 | if (gigaByte < 1) { 197 | BigDecimal result2 = new BigDecimal(Double.toString(megaByte)); 198 | return result2.setScale(2, BigDecimal.ROUND_HALF_UP) 199 | .toPlainString() + "MB"; 200 | } 201 | 202 | double teraBytes = gigaByte / 1024; 203 | if (teraBytes < 1) { 204 | BigDecimal result3 = new BigDecimal(Double.toString(gigaByte)); 205 | return result3.setScale(2, BigDecimal.ROUND_HALF_UP) 206 | .toPlainString() + "GB"; 207 | } 208 | BigDecimal result4 = new BigDecimal(teraBytes); 209 | return result4.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() 210 | + "TB"; 211 | } 212 | 213 | public static String getCacheSize(File file) throws Exception { 214 | return getFormatSize(getFolderSize(file)); 215 | } 216 | } -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/usermodel/Article.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews.usermodel; 2 | 3 | import org.litepal.crud.LitePalSupport; 4 | 5 | public class Article extends LitePalSupport { 6 | 7 | // 用户账号（唯一标识） 8 | private String userId; 9 | // 标题 10 | private String articleTitle; 11 | // 作者昵称 12 | private String articleAuthor; 13 | // 编写时间 14 | private String articleTime; 15 | // 文章图片地址 16 | private String articleImagePath; 17 | // 文章内容 18 | private String articleContent; 19 | 20 | public String getUserId() { 21 | return userId; 22 | } 23 | 24 | public void setUserId(String userId) { 25 | this.userId = userId; 26 | } 27 | 28 | public String getArticleTitle() { 29 | return articleTitle; 30 | } 31 | 32 | public void setArticleTitle(String articleTitle) { 33 | this.articleTitle = articleTitle; 34 | } 35 | 36 | public String getArticleAuthor() { 37 | return articleAuthor; 38 | } 39 | 40 | public void setArticleAuthor(String articleAuthor) { 41 | this.articleAuthor = articleAuthor; 42 | } 43 | 44 | public String getArticleTime() { 45 | return articleTime; 46 | } 47 | 48 | public void setArticleTime(String articleTime) { 49 | this.articleTime = articleTime; 50 | } 51 | 52 | public String getArticleImagePath() { 53 | return articleImagePath; 54 | } 55 | 56 | public void setArticleImagePath(String articleImagePath) { 57 | this.articleImagePath = articleImagePath; 58 | } 59 | 60 | public String getArticleContent() { 61 | return articleContent; 62 | } 63 | 64 | public void setArticleContent(String articleContent) { 65 | this.articleContent = articleContent; 66 | } 67 | 68 | @Override 69 | public String toString() { 70 | return "Article{" + 71 | "userId='" + userId + '\'' + 72 | ", articleTitle='" + articleTitle + '\'' + 73 | ", articleAuthor='" + articleAuthor + '\'' + 74 | ", articleTime='" + articleTime + '\'' + 75 | ", articleImagePath='" + articleImagePath + '\'' + 76 | ", articleContent='" + articleContent + '\'' + 77 | '}'; 78 | } 79 | } 80 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/usermodel/ArticleActivity.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews.usermodel; 2 | 3 | import android.content.Intent; 4 | import android.os.Bundle; 5 | import android.view.MenuItem; 6 | import android.view.View; 7 | 8 | import androidx.annotation.Nullable; 9 | import androidx.appcompat.app.ActionBar; 10 | import androidx.appcompat.widget.Toolbar; 11 | import androidx.recyclerview.widget.LinearLayoutManager; 12 | import androidx.recyclerview.widget.RecyclerView; 13 | 14 | import com.example.viewnews.R; 15 | import com.example.viewnews.tools.BaseActivity; 16 | import com.google.android.material.floatingactionbutton.FloatingActionButton; 17 | 18 | import org.litepal.LitePal; 19 | 20 | import java.util.ArrayList; 21 | import java.util.List; 22 | 23 | public class ArticleActivity extends BaseActivity { 24 | 25 | private List
articleList = new ArrayList<>(); 26 | 27 | private ArticleAdapter adapter; 28 | 29 | private String userIdNumber; 30 | 31 | private RecyclerView recyclerView; 32 | 33 | @Override 34 | protected void onCreate(Bundle savedInstanceState) { 35 | super.onCreate(savedInstanceState); 36 | setContentView(R.layout.activity_article); 37 | userIdNumber = getIntent().getStringExtra("user_article_id"); 38 | System.out.println("当前用户的账号为" + userIdNumber); 39 | Toolbar toolbar = findViewById(R.id.article_toolbar); 40 | toolbar.setTitle("我的文章"); 41 | setSupportActionBar(toolbar); 42 | //获取到ActionBar的实例 43 | ActionBar actionBar = getSupportActionBar(); 44 | if (actionBar != null) { 45 | //将导航按钮显示出来 46 | actionBar.setDisplayHomeAsUpEnabled(true); 47 | //设置一个导航按钮图标 48 | actionBar.setHomeAsUpIndicator(R.drawable.ic_return_left); 49 | } 50 | 51 | //监听点击事件 52 | FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.article_fab); 53 | fab.setOnClickListener(new View.OnClickListener() { 54 | @Override 55 | public void onClick(View view) { 56 | //Toast.makeText(ArticleActivity.this, "点击编辑文章", Toast.LENGTH_SHORT).show(); 57 | //跳转到编辑文章页面，返回来之后重新刷新列表 58 | Intent editArticleIntent = new Intent(ArticleActivity.this, EditArticleActivity.class); 59 | editArticleIntent.putExtra("userId", userIdNumber); 60 | startActivityForResult(editArticleIntent, 7); 61 | } 62 | }); 63 | recyclerView = (RecyclerView) findViewById(R.id.recycler_view); 64 | LinearLayoutManager layoutManager = new LinearLayoutManager(this); 65 | recyclerView.setLayoutManager(layoutManager); 66 | initArticles(); 67 | } 68 | 69 | @Override 70 | protected void onStart() { 71 | super.onStart(); 72 | System.out.println("回到我的文章列表这里！需要重新刷新一下列表！"); 73 | //initArticles(); 74 | } 75 | 76 | private void initArticles() { 77 | articleList.clear(); 78 | List
articles = LitePal.where("userId = ?", userIdNumber).find(Article.class); 79 | articleList.addAll(articles); 80 | adapter = new ArticleAdapter(articleList); 81 | recyclerView.setAdapter(adapter); 82 | adapter.notifyDataSetChanged(); 83 | } 84 | public boolean onOptionsItemSelected(MenuItem item) { 85 | switch (item.getItemId()) { 86 | case android.R.id.home: 87 | // 销毁当前活动 88 | ArticleActivity.this.finish(); 89 | break; 90 | } 91 | return true; 92 | } 93 | 94 | @Override 95 | protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { 96 | super.onActivityResult(requestCode, resultCode, data); 97 | switch (requestCode) { 98 | case 7: 99 | if(resultCode == RESULT_OK) { 100 | //Toast.makeText(ArticleActivity.this, "该刷新列表了", Toast.LENGTH_SHORT).show(); 101 | // 刷新个人文章列表 102 | initArticles(); 103 | } 104 | break; 105 | } 106 | } 107 | } -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/usermodel/ArticleAdapter.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews.usermodel; 2 | 3 | import android.content.Context; 4 | import android.content.Intent; 5 | import android.view.LayoutInflater; 6 | import android.view.View; 7 | import android.view.ViewGroup; 8 | import android.widget.ImageView; 9 | import android.widget.TextView; 10 | 11 | import androidx.cardview.widget.CardView; 12 | import androidx.recyclerview.widget.RecyclerView; 13 | 14 | import com.bumptech.glide.Glide; 15 | import com.bumptech.glide.load.engine.DiskCacheStrategy; 16 | import com.example.viewnews.R; 17 | 18 | import java.util.List; 19 | 20 | public class ArticleAdapter extends RecyclerView.Adapter{ 21 | 22 | private static final String TAG = "ArticleAdapter"; 23 | 24 | private Context mContext; 25 | 26 | private List
mArticleList; 27 | 28 | static class ViewHolder extends RecyclerView.ViewHolder { 29 | CardView cardView; 30 | ImageView articleImage; 31 | TextView articleTitle; 32 | TextView articleTime; 33 | 34 | public ViewHolder(View view) { 35 | super(view); 36 | cardView = (CardView) view; 37 | articleImage = (ImageView) view.findViewById(R.id.article_image); 38 | articleTitle = (TextView) view.findViewById(R.id.article_name); 39 | articleTime = (TextView) view.findViewById(R.id.article_time); 40 | } 41 | } 42 | 43 | public ArticleAdapter(List
fruitList) { 44 | mArticleList = fruitList; 45 | } 46 | 47 | @Override 48 | public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 49 | if (mContext == null) { 50 | mContext = parent.getContext(); 51 | } 52 | View view = LayoutInflater.from(mContext).inflate(R.layout.item_article, parent, false); 53 | 54 | final ViewHolder holder = new ViewHolder(view); 55 | //给cardView注册了一个监听器,当点击时,构造一个Intent并带到ArticleActivity活动中 56 | holder.cardView.setOnClickListener(new View.OnClickListener() { 57 | @Override 58 | public void onClick(View v) { 59 | int position = holder.getAdapterPosition(); 60 | Article article = mArticleList.get(position); 61 | Intent intent = new Intent(mContext, ArticleDetailActivity.class); 62 | intent.putExtra(ArticleDetailActivity.ARTICLE_IMAGE_ID, article.getArticleImagePath()); 63 | intent.putExtra(ArticleDetailActivity.ARTICLE_NAME, article.getArticleTitle()); 64 | intent.putExtra(ArticleDetailActivity.ARTICLE_TIME, article.getArticleTime()); 65 | mContext.startActivity(intent); 66 | } 67 | }); 68 | return holder; 69 | } 70 | 71 | @Override 72 | public void onBindViewHolder(ViewHolder holder, int position) { 73 | Article article = mArticleList.get(position); 74 | holder.articleTitle.setText(article.getArticleTitle()); 75 | holder.articleTime.setText(article.getArticleTime()); 76 | //使用Glide来加载图片，with方法传入一个Context、Activity或Fragment参数，最后调用load()方法去加载图片在 77 | Glide.with(mContext) 78 | .load(article.getArticleImagePath()) 79 | .diskCacheStrategy(DiskCacheStrategy.NONE) 80 | .placeholder(R.mipmap.ic_launcher) 81 | .error(R.mipmap.ic_launcher) 82 | .into(holder.articleImage); 83 | } 84 | @Override 85 | public int getItemCount() { 86 | return mArticleList.size(); 87 | } 88 | } 89 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/usermodel/ArticleDetailActivity.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews.usermodel; 2 | 3 | import androidx.appcompat.app.ActionBar; 4 | import androidx.appcompat.widget.Toolbar; 5 | 6 | import android.content.Intent; 7 | import android.os.Bundle; 8 | import android.view.MenuItem; 9 | import android.view.View; 10 | import android.widget.ImageView; 11 | import android.widget.TextView; 12 | import android.widget.Toast; 13 | 14 | import com.afollestad.materialdialogs.DialogAction; 15 | import com.afollestad.materialdialogs.MaterialDialog; 16 | import com.bumptech.glide.Glide; 17 | import com.bumptech.glide.load.engine.DiskCacheStrategy; 18 | import com.example.viewnews.MainActivity; 19 | import com.example.viewnews.R; 20 | import com.example.viewnews.tools.BaseActivity; 21 | import com.google.android.material.appbar.CollapsingToolbarLayout; 22 | import com.google.android.material.floatingactionbutton.FloatingActionButton; 23 | 24 | import org.litepal.LitePal; 25 | 26 | import java.util.List; 27 | 28 | public class ArticleDetailActivity extends BaseActivity { 29 | 30 | public static final String ARTICLE_NAME = "artile_name"; 31 | 32 | public static final String ARTICLE_IMAGE_ID = "artile_image_id"; 33 | 34 | public static final String ARTICLE_TIME = "artile_time"; 35 | 36 | private String articleName, articleImageId, articleTime; 37 | @Override 38 | protected void onCreate(Bundle savedInstanceState) { 39 | super.onCreate(savedInstanceState); 40 | setContentView(R.layout.activity_article_detail); 41 | 42 | Intent intent = getIntent(); 43 | 44 | articleName = intent.getStringExtra(ARTICLE_NAME); 45 | articleImageId = intent.getStringExtra(ARTICLE_IMAGE_ID); 46 | articleTime = intent.getStringExtra(ARTICLE_TIME); 47 | System.out.println("当前图片的地址为：" + articleImageId); 48 | System.out.println("当前文章的标题为：" + articleName); 49 | System.out.println("当前文章的发布时间为：" + articleTime); 50 | 51 | Toolbar toolbar = (Toolbar) findViewById(R.id.article_detail_toolbar); 52 | setSupportActionBar(toolbar); 53 | 54 | ActionBar actionBar = getSupportActionBar(); 55 | if (actionBar != null) { 56 | //启用HomeAsUp按钮 57 | actionBar.setDisplayHomeAsUpEnabled(true); 58 | actionBar.setHomeAsUpIndicator(R.drawable.ic_return_left); 59 | } 60 | 61 | CollapsingToolbarLayout collapsingToolbar = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar); 62 | ImageView articleImageView = (ImageView) findViewById(R.id.article_image_view); 63 | TextView articleContentText = (TextView) findViewById(R.id.article_content_text); 64 | 65 | TextView articleAuthor = findViewById(R.id.article_author11); 66 | 67 | TextView articleTime12 = findViewById(R.id.article_time11); 68 | 69 | // 此处去查询数据库 70 | List
articles = LitePal.where("userId = ? AND articleTitle = ? AND articleTime = ?", MainActivity.currentUserId, articleName, articleTime).find(Article.class); 71 | 72 | //设置当前界面的标题，作者，内容 73 | collapsingToolbar.setTitle(articleName); 74 | // 设置时间 75 | articleTime12.setText(articleTime); 76 | articleAuthor.setText(articles.get(0).getArticleAuthor()); 77 | articleContentText.setText(articles.get(0).getArticleContent()); 78 | 79 | Glide.with(this).load(articleImageId) 80 | .diskCacheStrategy(DiskCacheStrategy.NONE) 81 | .placeholder(R.mipmap.ic_launcher) 82 | .error(R.mipmap.ic_launcher) 83 | .into(articleImageView); 84 | 85 | 86 | //监听删除点击事件 87 | FloatingActionButton delFab = (FloatingActionButton) findViewById(R.id.delete_article); 88 | delFab.setOnClickListener(new View.OnClickListener() { 89 | @Override 90 | public void onClick(View view) { 91 | // 点击删除文章 92 | new MaterialDialog.Builder(ArticleDetailActivity.this) 93 | .title("提示") 94 | .content("确认是否删除此篇文章") 95 | .onPositive(new MaterialDialog.SingleButtonCallback() { 96 | @Override 97 | public void onClick(MaterialDialog dialog, DialogAction which) { 98 | //Toast.makeText(ArticleDetailActivity.this, "点击了确认按钮", Toast.LENGTH_SHORT).show(); 99 | int isOk = LitePal.deleteAll(Article.class, "userId = ? AND articleTitle = ? AND articleTime = ?", MainActivity.currentUserId, articleName, articleTime); 100 | if(isOk > 0) { 101 | Toast.makeText(ArticleDetailActivity.this, "删除成功！", Toast.LENGTH_SHORT).show(); 102 | ArticleDetailActivity.this.finish(); 103 | } else { 104 | Toast.makeText(ArticleDetailActivity.this, "删除失败！", Toast.LENGTH_SHORT).show(); 105 | } 106 | } 107 | }) 108 | .positiveText("确认") 109 | .negativeText("取消") 110 | .show(); 111 | } 112 | }); 113 | } 114 | 115 | @Override 116 | public boolean onOptionsItemSelected(MenuItem item) { 117 | switch (item.getItemId()) { 118 | case android.R.id.home: 119 | //关闭当前活动,从而返回上一个活动 120 | ArticleDetailActivity.this.finish(); 121 | return true; 122 | } 123 | return true; 124 | } 125 | } 126 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/usermodel/EditArticleActivity.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews.usermodel; 2 | 3 | import androidx.annotation.NonNull; 4 | import androidx.appcompat.app.ActionBar; 5 | import androidx.appcompat.widget.Toolbar; 6 | import androidx.core.app.ActivityCompat; 7 | import androidx.core.content.ContextCompat; 8 | 9 | import android.Manifest; 10 | import android.annotation.TargetApi; 11 | import android.content.ContentUris; 12 | import android.content.Intent; 13 | import android.content.pm.PackageManager; 14 | import android.database.Cursor; 15 | import android.graphics.Bitmap; 16 | import android.graphics.BitmapFactory; 17 | import android.net.Uri; 18 | import android.os.Build; 19 | import android.os.Bundle; 20 | import android.provider.DocumentsContract; 21 | import android.provider.MediaStore; 22 | import android.text.TextUtils; 23 | import android.view.MenuItem; 24 | import android.view.View; 25 | import android.widget.Button; 26 | import android.widget.EditText; 27 | import android.widget.ImageView; 28 | import android.widget.Toast; 29 | 30 | import com.example.viewnews.R; 31 | import com.example.viewnews.tools.BaseActivity; 32 | 33 | import org.litepal.LitePal; 34 | 35 | import java.text.SimpleDateFormat; 36 | import java.util.Calendar; 37 | import java.util.List; 38 | 39 | public class EditArticleActivity extends BaseActivity { 40 | 41 | 42 | private ImageView editImageView; 43 | private EditText editTitle, editContent; 44 | private Button publishBtn; 45 | 46 | public static final int CHOOSE_ARTICLE_IMAGE = 22; 47 | 48 | private String editImagePath = ""; 49 | 50 | private Article article = new Article(); 51 | 52 | private String userID; 53 | 54 | @Override 55 | protected void onCreate(Bundle savedInstanceState) { 56 | super.onCreate(savedInstanceState); 57 | setContentView(R.layout.activity_edit_article); 58 | userID = getIntent().getStringExtra("userId"); 59 | Toolbar toolbar = (Toolbar) findViewById(R.id.article_edit_toolbar); 60 | toolbar.setTitle("编辑文章"); 61 | List userInfos = LitePal.where("userAccount = ?", userID).find(UserInfo.class); 62 | article.setUserId(userID); 63 | article.setArticleAuthor(userInfos.get(0).getNickName()); 64 | System.out.println("当前文章详情为：" + article); 65 | setSupportActionBar(toolbar); 66 | ActionBar actionBar = getSupportActionBar(); 67 | if (actionBar != null) { 68 | //启用HomeAsUp按钮 69 | actionBar.setDisplayHomeAsUpEnabled(true); 70 | actionBar.setHomeAsUpIndicator(R.drawable.ic_return_left); 71 | } 72 | 73 | editImageView = findViewById(R.id.edit_picture); 74 | editTitle = findViewById(R.id.edit_title); 75 | editContent = findViewById(R.id.edit_content); 76 | publishBtn = findViewById(R.id.edit_publish); 77 | 78 | editImageView.setOnClickListener(new View.OnClickListener() { 79 | @Override 80 | public void onClick(View view) { 81 | if (ContextCompat.checkSelfPermission(EditArticleActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) { 82 | ActivityCompat.requestPermissions(EditArticleActivity.this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1); 83 | } else { 84 | openAlbum(); 85 | } 86 | } 87 | }); 88 | 89 | // 发布时间 90 | publishBtn.setOnClickListener(new View.OnClickListener() { 91 | @Override 92 | public void onClick(View view) { 93 | if(TextUtils.isEmpty(editTitle.getText()) || TextUtils.isEmpty(editContent.getText())) { 94 | Toast.makeText(EditArticleActivity.this, "输入不能为空！", Toast.LENGTH_SHORT).show(); 95 | } else { 96 | article.setArticleTitle(editTitle.getText().toString()); 97 | article.setArticleContent(editContent.getText().toString()); 98 | article.setArticleImagePath(editImagePath); 99 | Calendar calendar= Calendar.getInstance(); 100 | SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss"); 101 | System.out.println(sdf.format(calendar.getTime())); 102 | article.setArticleTime(sdf.format(calendar.getTime())); 103 | boolean save = article.save(); 104 | if(save) Toast.makeText(EditArticleActivity.this, "发布成功！", Toast.LENGTH_SHORT).show(); 105 | else Toast.makeText(EditArticleActivity.this, "发布失败！", Toast.LENGTH_SHORT).show(); 106 | } 107 | } 108 | }); 109 | } 110 | 111 | private void openAlbum() { 112 | Intent mIntent = new Intent("android.intent.action.GET_CONTENT"); 113 | mIntent.setType("image/*"); 114 | startActivityForResult(mIntent, CHOOSE_ARTICLE_IMAGE); 115 | } 116 | 117 | @Override 118 | public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { 119 | switch (requestCode) { 120 | case 1: 121 | if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { 122 | openAlbum(); 123 | } else { 124 | Toast.makeText(this, "you denied the permission", Toast.LENGTH_SHORT).show(); 125 | } 126 | break; 127 | default: 128 | } 129 | } 130 | 131 | @Override 132 | protected void onActivityResult(int requestCode, int resultCode, Intent data) { 133 | super.onActivityResult(requestCode, resultCode, data); 134 | switch (requestCode) { 135 | case CHOOSE_ARTICLE_IMAGE: 136 | if (resultCode == RESULT_OK) { 137 | if (Build.VERSION.SDK_INT >= 19) { 138 | handleImageOnKiKat(data); 139 | } else { 140 | handleImageBeforeKiKat(data); 141 | } 142 | } 143 | break; 144 | } 145 | } 146 | @TargetApi(Build.VERSION_CODES.KITKAT) 147 | private void handleImageOnKiKat(Intent data) { 148 | String imagePath = null; 149 | Uri uri = data.getData(); 150 | if (DocumentsContract.isDocumentUri(this, uri)) { 151 | String docId = DocumentsContract.getDocumentId(uri); 152 | if ("com.android.providers.media.documents".equals(uri.getAuthority())) { 153 | String id = docId.split(":")[1]; 154 | String selection = MediaStore.Images.Media._ID + "=" + id; 155 | imagePath = getImagePath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, selection); 156 | } else if ("com.android.providers.downloads.documents".equals(uri.getAuthority())) { 157 | Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(docId)); 158 | imagePath = getImagePath(contentUri, null); 159 | } 160 | } else if ("content".equalsIgnoreCase(uri.getScheme())) { 161 | //如或是content类型的URI就使用普通方法处理 162 | imagePath = getImagePath(uri, null); 163 | 164 | } else if ("file".equalsIgnoreCase(uri.getScheme())) { 165 | //如果是file类型的直接获取图片路径就行 166 | imagePath = uri.getPath(); 167 | } 168 | editImagePath = imagePath; 169 | // 根据图片路径显示图片 170 | diplayImage(imagePath); 171 | } 172 | 173 | private void handleImageBeforeKiKat(Intent data) { 174 | Uri uri = data.getData(); 175 | String imagePath = getImagePath(uri, null); 176 | diplayImage(imagePath); 177 | } 178 | 179 | private String getImagePath(Uri uri, String selection) { 180 | String path = null; 181 | //通过Uri和selection来获取真实的图片路径 182 | Cursor cursor = getContentResolver().query(uri, null, selection, null, null); 183 | if (cursor != null) { 184 | if (cursor.moveToFirst()) { 185 | path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA)); 186 | } 187 | cursor.close(); 188 | } 189 | return path; 190 | } 191 | 192 | private void diplayImage(String imagePath) { 193 | if (!TextUtils.isEmpty(imagePath)) { 194 | Bitmap bitmap = BitmapFactory.decodeFile(imagePath); 195 | editImageView.setImageBitmap(bitmap); 196 | } else { 197 | editImageView.setImageResource(R.mipmap.ic_launcher); 198 | } 199 | } 200 | 201 | @Override 202 | public boolean onOptionsItemSelected(MenuItem item) { 203 | switch (item.getItemId()) { 204 | case android.R.id.home: 205 | Intent intent = new Intent(); 206 | // 提醒刷新列表 207 | setResult(RESULT_OK, intent); 208 | EditArticleActivity.this.finish(); 209 | return true; 210 | } 211 | return true; 212 | } 213 | } 214 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/usermodel/FavoriteNewsListAdapter.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews.usermodel; 2 | 3 | import android.content.Context; 4 | import android.view.LayoutInflater; 5 | import android.view.View; 6 | import android.view.ViewGroup; 7 | import android.widget.ArrayAdapter; 8 | import android.widget.TextView; 9 | import com.example.viewnews.NewsCollectBean; 10 | import com.example.viewnews.R; 11 | 12 | import java.util.List; 13 | 14 | public class FavoriteNewsListAdapter extends ArrayAdapter { 15 | 16 | private int resourceId; 17 | 18 | public FavoriteNewsListAdapter(Context context, int textViewResourceId, List objects){ 19 | super(context, textViewResourceId, objects); 20 | resourceId = textViewResourceId; 21 | } 22 | 23 | @Override 24 | public View getView(int position, View convertView, ViewGroup parent) { 25 | NewsCollectBean dataBean = getItem(position); 26 | View view =null; 27 | if (convertView == null){ 28 | view = LayoutInflater.from(getContext()).inflate(resourceId, parent,false); 29 | } else { 30 | view = convertView; 31 | } 32 | TextView newsName = (TextView) view.findViewById(R.id.title_news); 33 | newsName.setText(dataBean.getNewSTitle()); 34 | return view; 35 | } 36 | public class ViewHoder{ 37 | private TextView newsName; 38 | } 39 | } -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/usermodel/LoginActivity.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews.usermodel; 2 | 3 | import androidx.annotation.Nullable; 4 | import android.content.Context; 5 | import android.content.Intent; 6 | import android.os.Bundle; 7 | import android.text.TextUtils; 8 | import android.util.Log; 9 | import android.view.View; 10 | import android.widget.Button; 11 | import android.widget.EditText; 12 | import android.widget.Toast; 13 | 14 | import com.example.viewnews.MainActivity; 15 | import com.example.viewnews.R; 16 | import com.example.viewnews.tools.BaseActivity; 17 | 18 | import org.litepal.LitePal; 19 | 20 | import java.io.BufferedWriter; 21 | import java.io.FileNotFoundException; 22 | import java.io.FileOutputStream; 23 | import java.io.IOException; 24 | import java.io.OutputStreamWriter; 25 | import java.util.List; 26 | 27 | public class LoginActivity extends BaseActivity { 28 | 29 | private EditText userAccount; 30 | private EditText userPwd; 31 | private Button loginBtn; 32 | 33 | private Button registerBtn; 34 | 35 | @Override 36 | protected void onCreate(Bundle savedInstanceState) { 37 | super.onCreate(savedInstanceState); 38 | setContentView(R.layout.activity_login); 39 | userAccount = findViewById(R.id.login_userAccount); 40 | userPwd = findViewById(R.id.login_pwd); 41 | 42 | // 在点击编辑资料时，提醒先登录 43 | Intent intent = getIntent(); 44 | String status = intent.getStringExtra("loginStatus"); 45 | if(status != null) { 46 | Toast.makeText(LoginActivity.this, status, Toast.LENGTH_SHORT).show(); 47 | } 48 | 49 | loginBtn = findViewById(R.id.login_on); 50 | registerBtn = findViewById(R.id.login_register); 51 | 52 | loginBtn.setOnClickListener(new View.OnClickListener() { 53 | @Override 54 | public void onClick(View view) { 55 | String numId = userAccount.getText().toString(); 56 | String pwd = userPwd.getText().toString(); 57 | // 先判断输入不能为空 58 | if(TextUtils.isEmpty(numId) || TextUtils.isEmpty(pwd)) { 59 | Toast.makeText(LoginActivity.this, "输入不能为空", Toast.LENGTH_SHORT).show(); 60 | } else { 61 | //此处用litepal去查询数据库，查询用户输入的账号和密码是否登录成功，其中账号是唯一标识 62 | List userInfos = LitePal.where("userAccount = ?", numId).find(UserInfo.class); 63 | System.out.println(userInfos); 64 | Log.d("登录界面", "onClick: " + userInfos); 65 | if(userInfos.size() == 0) { 66 | // 提示用户注册 67 | Toast.makeText(LoginActivity.this, "账号不存在，请先注册！", Toast.LENGTH_SHORT).show(); 68 | } else { 69 | // 验证密码是否正确 70 | if(!pwd.equals(userInfos.get(0).getUserPwd())) { 71 | Toast.makeText(LoginActivity.this, "请确认是否输入正确的密码?", Toast.LENGTH_SHORT).show(); 72 | } else { 73 | // 登录成功，返回到主界面，主界面要保存登录的账号，便于查询读者信息，主界面使用onActivityResult来接收得到的账号 74 | Intent intent = new Intent(LoginActivity.this, MainActivity.class); 75 | intent.putExtra("userID", numId); 76 | intent.putExtra("userNick", userInfos.get(0).getNickName()); 77 | intent.putExtra("userSign", userInfos.get(0).getUserSignature()); 78 | intent.putExtra("imagePath", userInfos.get(0).getImagePath()); 79 | setResult(RESULT_OK, intent); 80 | finish(); 81 | } 82 | } 83 | } 84 | } 85 | }); 86 | 87 | registerBtn.setOnClickListener(new View.OnClickListener() { 88 | @Override 89 | public void onClick(View view) { 90 | //此处跳转到注册页面 91 | Intent intent = new Intent(LoginActivity.this, RegisterActivity.class); 92 | // 注册请求码是2 93 | startActivityForResult(intent, 2); 94 | } 95 | }); 96 | } 97 | 98 | @Override 99 | protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { 100 | super.onActivityResult(requestCode, resultCode, data); 101 | switch (requestCode) { 102 | case 2: 103 | if(resultCode == RESULT_OK) { 104 | Toast.makeText(LoginActivity.this, data.getStringExtra("register_status"), Toast.LENGTH_SHORT).show(); 105 | } 106 | break; 107 | } 108 | } 109 | 110 | @Override 111 | protected void onDestroy() { 112 | super.onDestroy(); 113 | // 登录界面销毁时存储账号 114 | String inputIdText = userAccount.getText().toString(); 115 | save(inputIdText); 116 | System.out.println("活动毁灭之前是否传值" + inputIdText); 117 | } 118 | 119 | // 存储账号，方便下次启动app时，直接读取账号，并初始化数据 120 | public void save(String inputText) { 121 | FileOutputStream out = null; 122 | BufferedWriter writer = null; 123 | try { 124 | out = openFileOutput("data", Context.MODE_PRIVATE); 125 | writer = new BufferedWriter(new OutputStreamWriter(out)); 126 | writer.write(inputText); 127 | } catch (FileNotFoundException e) { 128 | e.printStackTrace(); 129 | } catch (IOException e) { 130 | e.printStackTrace(); 131 | } finally { 132 | if (writer != null){ 133 | try { 134 | writer.close(); 135 | } catch (IOException e) { 136 | e.printStackTrace(); 137 | } 138 | } 139 | } 140 | } 141 | } 142 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/usermodel/RegisterActivity.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews.usermodel; 2 | 3 | import android.content.Intent; 4 | import android.os.Bundle; 5 | import android.text.TextUtils; 6 | import android.view.View; 7 | import android.widget.Button; 8 | import android.widget.EditText; 9 | import android.widget.Toast; 10 | 11 | import com.example.viewnews.R; 12 | import com.example.viewnews.tools.BaseActivity; 13 | 14 | import org.litepal.LitePal; 15 | 16 | import java.util.List; 17 | 18 | public class RegisterActivity extends BaseActivity { 19 | 20 | private EditText reg_userAccount; 21 | private EditText reg_userPwd; 22 | private EditText reg_confirm_userPwd; 23 | private Button registerBtn; 24 | 25 | @Override 26 | protected void onCreate(Bundle savedInstanceState) { 27 | super.onCreate(savedInstanceState); 28 | setContentView(R.layout.activity_register); 29 | reg_userAccount = findViewById(R.id.register_userAccount); 30 | reg_userPwd = findViewById(R.id.register_pwd); 31 | reg_confirm_userPwd = findViewById(R.id.confirm_pwd); 32 | registerBtn = findViewById(R.id.register_click); 33 | registerBtn.setOnClickListener(new View.OnClickListener() { 34 | @Override 35 | public void onClick(View view) { 36 | // 首先验证输入是否为空 37 | String userId = reg_userAccount.getText().toString(); 38 | String userPwd = reg_userPwd.getText().toString(); 39 | String secondPwd = reg_confirm_userPwd.getText().toString(); 40 | List all = LitePal.findAll(UserInfo.class); 41 | if(TextUtils.isEmpty(userId) || TextUtils.isEmpty(userPwd) || TextUtils.isEmpty(secondPwd)) { 42 | // 判断字符串是否为null或者"" 43 | Toast.makeText(RegisterActivity.this, "输入不能为空", Toast.LENGTH_SHORT).show(); 44 | } else { 45 | // 判断两次输入的密码是否匹配，匹配则写入数据库，并且结束当前活动，自动返回登录界面 46 | if(userPwd.equals(secondPwd)) { 47 | List userInfoList = LitePal.where("userAccount = ?", userId).find(UserInfo.class); 48 | if(userInfoList.size() > 0) { 49 | Toast.makeText(RegisterActivity.this, "当前账号已被注册，请重新输入账号", Toast.LENGTH_SHORT).show(); 50 | } else { 51 | UserInfo userInfo = new UserInfo(); 52 | userInfo.setUserAccount(userId); 53 | userInfo.setUserPwd(secondPwd); 54 | userInfo.setUserBirthDay("待完善"); 55 | userInfo.setUserSex("待完善"); 56 | userInfo.setUserSignature("这个人很懒，TA什么也没留下。"); 57 | // 给其设置一个用户名 58 | userInfo.setNickName("用户" + (all.size() + 1)); 59 | userInfo.save(); 60 | System.out.println(userInfo); 61 | Intent intent = new Intent(); 62 | intent.putExtra("register_status", "注册成功"); 63 | setResult(RESULT_OK, intent); 64 | finish(); 65 | } 66 | } else { 67 | Toast.makeText(RegisterActivity.this, "请确认输入密码与确认密码是否一致?", Toast.LENGTH_SHORT).show(); 68 | } 69 | } 70 | } 71 | }); 72 | } 73 | } 74 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/usermodel/UserDetailActivity.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews.usermodel; 2 | 3 | import androidx.annotation.NonNull; 4 | import androidx.appcompat.app.ActionBar; 5 | import androidx.appcompat.widget.Toolbar; 6 | import androidx.core.app.ActivityCompat; 7 | import androidx.core.content.ContextCompat; 8 | 9 | import android.Manifest; 10 | import android.annotation.TargetApi; 11 | import android.app.DatePickerDialog; 12 | import android.content.ContentUris; 13 | import android.content.Intent; 14 | import android.content.pm.PackageManager; 15 | import android.database.Cursor; 16 | import android.graphics.Bitmap; 17 | import android.graphics.BitmapFactory; 18 | import android.net.Uri; 19 | import android.os.Build; 20 | import android.os.Bundle; 21 | import android.provider.DocumentsContract; 22 | import android.provider.MediaStore; 23 | import android.text.InputType; 24 | import android.text.TextUtils; 25 | import android.view.MenuItem; 26 | import android.view.View; 27 | import android.widget.DatePicker; 28 | import android.widget.ImageView; 29 | import android.widget.LinearLayout; 30 | import android.widget.TextView; 31 | import android.widget.Toast; 32 | 33 | import com.afollestad.materialdialogs.MaterialDialog; 34 | import com.example.viewnews.R; 35 | import com.example.viewnews.tools.BaseActivity; 36 | 37 | import org.litepal.LitePal; 38 | 39 | import java.text.ParseException; 40 | import java.text.SimpleDateFormat; 41 | import java.util.Calendar; 42 | import java.util.Date; 43 | import java.util.List; 44 | 45 | public class UserDetailActivity extends BaseActivity { 46 | 47 | private ImageView userAvatar; 48 | 49 | private Toolbar detailToolbar; 50 | 51 | private String userId; 52 | 53 | public static final int CHOOSE_USER_AVATAR = 11; 54 | 55 | private UserInfo userInfo; 56 | 57 | // 定义线性布局 58 | private LinearLayout layout_avatar, layout_nickname, layout_sex, layout_birth, layout_signature; 59 | 60 | private TextView showNickName, showSex, showBirthday, showSignature; 61 | 62 | private Calendar calendar; 63 | 64 | @Override 65 | protected void onCreate(Bundle savedInstanceState) { 66 | super.onCreate(savedInstanceState); 67 | setContentView(R.layout.activity_user_detail); 68 | detailToolbar = findViewById(R.id.userData_toolbar); 69 | detailToolbar.setTitle("个人信息"); 70 | setSupportActionBar(detailToolbar); 71 | ActionBar actionBar = getSupportActionBar(); 72 | if (actionBar != null) { 73 | actionBar.setDisplayHomeAsUpEnabled(true); 74 | actionBar.setHomeAsUpIndicator(R.drawable.ic_return_left); 75 | } 76 | layout_avatar = findViewById(R.id.lay_avatar); 77 | layout_nickname = findViewById(R.id.lay_nickname); 78 | 79 | layout_sex = findViewById(R.id.lay_sex); 80 | layout_birth = findViewById(R.id.lay_birthday); 81 | layout_signature = findViewById(R.id.lay_signature); 82 | 83 | userAvatar = findViewById(R.id.user_avatar); 84 | 85 | showNickName = findViewById(R.id.show_name); 86 | showSex = findViewById(R.id.show_sex); 87 | 88 | showBirthday = findViewById(R.id.show_birthday); 89 | showSignature = findViewById(R.id.show_sign); 90 | 91 | userId = getIntent().getStringExtra("user_edit_id"); 92 | initData(); 93 | 94 | calendar = Calendar.getInstance(); 95 | SimpleDateFormat format = new SimpleDateFormat("yyyy-mm-dd"); 96 | Date date = null; 97 | if (!TextUtils.isEmpty(userInfo.getUserBirthDay()) && !userInfo.getUserBirthDay().equals("待完善")) { 98 | try { 99 | date = format.parse(userInfo.getUserBirthDay()); 100 | calendar.setTime(date); 101 | } catch (ParseException e) { 102 | e.printStackTrace(); 103 | } 104 | } 105 | } 106 | 107 | // 初始化数据 108 | private void initData() { 109 | List infos = LitePal.where("userAccount = ?", userId).find(UserInfo.class); 110 | userInfo = infos.get(0); 111 | System.out.println("用户详情界面的信息为" + userInfo); 112 | showNickName.setText(userInfo.getNickName()); 113 | showSex.setText(userInfo.getUserSex()); 114 | showBirthday.setText(userInfo.getUserBirthDay()); 115 | showSignature.setText(userInfo.getUserSignature()); 116 | String curImagePath = userInfo.getImagePath(); 117 | diplayImage(curImagePath); 118 | } 119 | 120 | // 在活动由不可见变为可见的时候调用 121 | @Override 122 | protected void onStart() { 123 | super.onStart(); 124 | layout_avatar.setOnClickListener(new View.OnClickListener() { 125 | @Override 126 | public void onClick(View view) { 127 | if (ContextCompat.checkSelfPermission(UserDetailActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) { 128 | ActivityCompat.requestPermissions(UserDetailActivity.this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1); 129 | } else { 130 | openAlbum(); 131 | } 132 | } 133 | }); 134 | layout_nickname.setOnClickListener(new View.OnClickListener() { 135 | @Override 136 | public void onClick(View view) { 137 | new MaterialDialog.Builder(UserDetailActivity.this) 138 | .title("修改昵称") 139 | .inputRangeRes(2, 8, R.color.colorBlack) 140 | .inputType(InputType.TYPE_CLASS_TEXT) 141 | .input("请输入要修改的昵称", userInfo.getNickName(), new MaterialDialog.InputCallback() { 142 | @Override 143 | public void onInput(MaterialDialog dialog, CharSequence input) { 144 | // CharSequence的值是可读可写序列，而String的值是只读序列。 145 | //Toast.makeText(UserDetailActivity.this, input, Toast.LENGTH_SHORT).show(); 146 | 147 | System.out.println(input.toString()); 148 | // 重新设置值，当前活动被销毁时才保存到数据库 149 | userInfo.setNickName(input.toString()); 150 | showNickName.setText(userInfo.getNickName()); 151 | } 152 | }) 153 | .positiveText("确定") 154 | .show(); 155 | 156 | } 157 | }); 158 | layout_sex.setOnClickListener(new View.OnClickListener() { 159 | @Override 160 | public void onClick(View view) { 161 | String[] contentSex = new String[]{"男", "女"}; 162 | new MaterialDialog.Builder(UserDetailActivity.this) 163 | .title("修改性别") 164 | .items(contentSex) 165 | .itemsCallbackSingleChoice(userInfo.getUserSex().equals("女") ? 1 : 0, new MaterialDialog.ListCallbackSingleChoice() { 166 | @Override 167 | public boolean onSelection(MaterialDialog dialog, View view, int which, CharSequence text) { 168 | System.out.println("选择哪一个" + which); 169 | System.out.println("选择的内容是" + text); 170 | userInfo.setUserSex(text.toString()); 171 | showSex.setText(userInfo.getUserSex()); 172 | return true; 173 | } 174 | }) 175 | .show(); 176 | } 177 | }); 178 | 179 | layout_birth.setOnClickListener(new View.OnClickListener() { 180 | @Override 181 | public void onClick(View view) { 182 | DatePickerDialog dialog = new DatePickerDialog(UserDetailActivity.this, R.style.MyDatePickerDialogTheme, new DatePickerDialog.OnDateSetListener() { 183 | 184 | @Override 185 | public void onDateSet(DatePicker datePicker, int year, int monthOfYear, int dayOfMonth) { 186 | String birth = year + "-" + (monthOfYear + 1) + "-" + dayOfMonth; 187 | System.out.println(birth); 188 | userInfo.setUserBirthDay(birth); 189 | showBirthday.setText(birth); 190 | } 191 | }, 192 | calendar.get(Calendar.YEAR), 193 | calendar.get(Calendar.MONTH), 194 | calendar.get(Calendar.DAY_OF_MONTH)); 195 | dialog.show(); 196 | } 197 | }); 198 | 199 | layout_signature.setOnClickListener(new View.OnClickListener() { 200 | @Override 201 | public void onClick(View view) { 202 | new MaterialDialog.Builder(UserDetailActivity.this) 203 | .title("修改个性签名") 204 | .inputRangeRes(1, 38, R.color.colorBlack) 205 | .inputType(InputType.TYPE_CLASS_TEXT) 206 | .input("请输入要修改的个性签名", userInfo.getUserSignature(), new MaterialDialog.InputCallback() { 207 | @Override 208 | public void onInput(MaterialDialog dialog, CharSequence input) { 209 | 210 | System.out.println(input.toString()); 211 | userInfo.setUserSignature(input.toString()); 212 | showSignature.setText(userInfo.getUserSignature()); 213 | } 214 | }) 215 | .positiveText("确定") 216 | .show(); 217 | } 218 | }); 219 | } 220 | 221 | @Override 222 | public boolean onOptionsItemSelected(MenuItem item) { 223 | switch (item.getItemId()) { 224 | case android.R.id.home: 225 | // 保存更改的数据 226 | userInfo.save(); 227 | Intent intent = new Intent(); 228 | intent.putExtra("nickName", showNickName.getText().toString()); 229 | intent.putExtra("signature", showSignature.getText().toString()); 230 | intent.putExtra("imagePath", userInfo.getImagePath()); 231 | setResult(RESULT_OK, intent); 232 | System.out.println("当前个人信息活动页被销毁！！！"); 233 | UserDetailActivity.this.finish(); 234 | break; 235 | } 236 | return true; 237 | } 238 | 239 | private void openAlbum() { 240 | Intent mIntent = new Intent("android.intent.action.GET_CONTENT"); 241 | mIntent.setType("image/*"); 242 | startActivityForResult(mIntent, CHOOSE_USER_AVATAR); 243 | } 244 | 245 | @Override 246 | public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { 247 | switch (requestCode) { 248 | case 1: 249 | if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { 250 | openAlbum(); 251 | } else { 252 | Toast.makeText(this, "you denied the permission", Toast.LENGTH_SHORT).show(); 253 | } 254 | break; 255 | default: 256 | } 257 | } 258 | 259 | @Override 260 | protected void onActivityResult(int requestCode, int resultCode, Intent data) { 261 | super.onActivityResult(requestCode, resultCode, data); 262 | switch (requestCode) { 263 | case CHOOSE_USER_AVATAR: 264 | if (resultCode == RESULT_OK) { 265 | if (Build.VERSION.SDK_INT >= 19) { 266 | handleImageOnKiKat(data); 267 | } else { 268 | handleImageBeforeKiKat(data); 269 | } 270 | } 271 | break; 272 | } 273 | } 274 | 275 | @TargetApi(Build.VERSION_CODES.KITKAT) 276 | private void handleImageOnKiKat(Intent data) { 277 | String imagePath = null; 278 | Uri uri = data.getData(); 279 | if (DocumentsContract.isDocumentUri(this, uri)) { 280 | String docId = DocumentsContract.getDocumentId(uri); 281 | if ("com.android.providers.media.documents".equals(uri.getAuthority())) { 282 | String id = docId.split(":")[1]; 283 | String selection = MediaStore.Images.Media._ID + "=" + id; 284 | imagePath = getImagePath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, selection); 285 | } else if ("com.android.providers.downloads.documents".equals(uri.getAuthority())) { 286 | Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(docId)); 287 | imagePath = getImagePath(contentUri, null); 288 | } 289 | } else if ("content".equalsIgnoreCase(uri.getScheme())) { 290 | //如或是content类型的URI就使用普通方法处理 291 | imagePath = getImagePath(uri, null); 292 | 293 | } else if ("file".equalsIgnoreCase(uri.getScheme())) { 294 | //如果是file类型的直接获取图片路径就行 295 | imagePath = uri.getPath(); 296 | } 297 | // 根据图片路径显示图片 298 | userInfo.setImagePath(imagePath); 299 | System.out.println("更新图片后，用户信息为" + userInfo); 300 | diplayImage(imagePath); 301 | } 302 | 303 | private void handleImageBeforeKiKat(Intent data) { 304 | Uri uri = data.getData(); 305 | String imagePath = getImagePath(uri, null); 306 | diplayImage(imagePath); 307 | } 308 | 309 | private String getImagePath(Uri uri, String selection) { 310 | String path = null; 311 | //通过Uri和selection来获取真实的图片路径 312 | Cursor cursor = getContentResolver().query(uri, null, selection, null, null); 313 | if (cursor != null) { 314 | if (cursor.moveToFirst()) { 315 | path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA)); 316 | } 317 | cursor.close(); 318 | } 319 | return path; 320 | } 321 | 322 | private void diplayImage(String imagePath) { 323 | if (!TextUtils.isEmpty(imagePath)) { 324 | Bitmap bitmap = BitmapFactory.decodeFile(imagePath); 325 | userAvatar.setImageBitmap(bitmap); 326 | } else { 327 | userAvatar.setImageResource(R.drawable.no_login_avatar); 328 | } 329 | } 330 | 331 | @Override 332 | protected void onDestroy() { 333 | super.onDestroy(); 334 | System.out.println("个人信息页面被销毁。。。。。。。。。。"); 335 | } 336 | } 337 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/usermodel/UserFavoriteActivity.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews.usermodel; 2 | 3 | import androidx.annotation.Nullable; 4 | import androidx.appcompat.app.ActionBar; 5 | import androidx.appcompat.widget.Toolbar; 6 | import android.content.Intent; 7 | import android.os.Bundle; 8 | import android.view.MenuItem; 9 | import android.view.View; 10 | import android.widget.AdapterView; 11 | import android.widget.ListView; 12 | import com.example.viewnews.NewsCollectBean; 13 | import com.example.viewnews.R; 14 | import com.example.viewnews.WebActivity; 15 | import com.example.viewnews.tools.BaseActivity; 16 | import org.litepal.LitePal; 17 | import java.util.ArrayList; 18 | import java.util.List; 19 | 20 | public class UserFavoriteActivity extends BaseActivity { 21 | 22 | private ListView favoriteNewsList; 23 | private List sonNewList = new ArrayList<>(); 24 | private Toolbar favoriteToolbar; 25 | private String userIdNumber; 26 | 27 | private FavoriteNewsListAdapter adapter; 28 | 29 | @Override 30 | protected void onCreate(Bundle savedInstanceState) { 31 | super.onCreate(savedInstanceState); 32 | setContentView(R.layout.activity_user_favorite); 33 | userIdNumber = getIntent().getStringExtra("user_love_id"); 34 | System.out.println("收藏：当前用户的id为" + userIdNumber); 35 | favoriteNewsList = findViewById(R.id.favorite_newsList); 36 | favoriteToolbar = findViewById(R.id.userFavorite_toolbar); 37 | favoriteToolbar.setTitle("我的收藏"); 38 | setSupportActionBar(favoriteToolbar); 39 | initNews(); 40 | ActionBar actionBar = getSupportActionBar(); 41 | if (actionBar != null){ 42 | actionBar.setDisplayHomeAsUpEnabled(true); 43 | actionBar.setHomeAsUpIndicator(R.drawable.ic_return_left); 44 | } 45 | } 46 | 47 | // 初始化数据 48 | private void initNews() { 49 | sonNewList = LitePal.where("userIdNumer = ? ", userIdNumber).find(NewsCollectBean.class); 50 | System.out.println("当前喜欢的列表有：" + sonNewList); 51 | adapter = new FavoriteNewsListAdapter(UserFavoriteActivity.this, R.layout.item_favorite_news,sonNewList); 52 | favoriteNewsList.setAdapter(adapter); 53 | adapter.notifyDataSetChanged(); 54 | } 55 | 56 | @Override 57 | protected void onStart() { 58 | super.onStart(); 59 | favoriteNewsList.setOnItemClickListener(new AdapterView.OnItemClickListener() { 60 | @Override 61 | public void onItemClick(AdapterView parent, View view, int position, long id) { 62 | NewsCollectBean dataBean = sonNewList.get(position); 63 | Intent intent = new Intent(UserFavoriteActivity.this, WebActivity.class); 64 | intent.putExtra("pageUrl", dataBean.getNewsUrl()); 65 | intent.putExtra("uniquekey", dataBean.getNewsId()); 66 | intent.putExtra("news_title", dataBean.getNewSTitle()); 67 | startActivityForResult(intent, 4); 68 | } 69 | }); 70 | } 71 | 72 | @Override 73 | public boolean onOptionsItemSelected(MenuItem item) { 74 | switch (item.getItemId()){ 75 | case android.R.id.home: 76 | UserFavoriteActivity.this.finish(); 77 | break; 78 | } 79 | return true; 80 | } 81 | 82 | @Override 83 | protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { 84 | super.onActivityResult(requestCode, resultCode, data); 85 | switch (requestCode) { 86 | case 4: 87 | if(resultCode == RESULT_OK) { 88 | initNews(); 89 | System.out.println("奥里给！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！"); 90 | } 91 | break; 92 | } 93 | } 94 | } -------------------------------------------------------------------------------- /app/src/main/java/com/example/viewnews/usermodel/UserInfo.java: -------------------------------------------------------------------------------- 1 | package com.example.viewnews.usermodel; 2 | 3 | import org.litepal.crud.LitePalSupport; 4 | 5 | public class UserInfo extends LitePalSupport { 6 | 7 | // 账号 8 | private String userAccount; 9 | // 昵称 10 | private String nickName; 11 | // 登录密码 12 | private String userPwd; 13 | // 性别 14 | private String userSex; 15 | // 生日 16 | private String userBirthDay; 17 | // 个性签名 18 | private String userSignature; 19 | // 保存头像的路径 20 | private String imagePath; 21 | 22 | public String getUserAccount() { 23 | return userAccount; 24 | } 25 | 26 | public void setUserAccount(String userAccount) { 27 | this.userAccount = userAccount; 28 | } 29 | 30 | public String getNickName() { 31 | return nickName; 32 | } 33 | 34 | public void setNickName(String nickName) { 35 | this.nickName = nickName; 36 | } 37 | 38 | public String getUserPwd() { 39 | return userPwd; 40 | } 41 | 42 | public void setUserPwd(String userPwd) { 43 | this.userPwd = userPwd; 44 | } 45 | 46 | public String getUserSex() { 47 | return userSex; 48 | } 49 | 50 | public void setUserSex(String userSex) { 51 | this.userSex = userSex; 52 | } 53 | 54 | public String getUserBirthDay() { 55 | return userBirthDay; 56 | } 57 | 58 | public void setUserBirthDay(String userBirthDay) { 59 | this.userBirthDay = userBirthDay; 60 | } 61 | 62 | public String getUserSignature() { 63 | return userSignature; 64 | } 65 | 66 | public void setUserSignature(String userSignature) { 67 | this.userSignature = userSignature; 68 | } 69 | 70 | public String getImagePath() { 71 | return imagePath; 72 | } 73 | 74 | public void setImagePath(String imagePath) { 75 | this.imagePath = imagePath; 76 | } 77 | 78 | @Override 79 | public String toString() { 80 | return "UserInfo{" + 81 | "userAccount='" + userAccount + '\'' + 82 | ", nickName='" + nickName + '\'' + 83 | ", userPwd='" + userPwd + '\'' + 84 | ", userSex='" + userSex + '\'' + 85 | ", userBirthDay='" + userBirthDay + '\'' + 86 | ", userSignature='" + userSignature + '\'' + 87 | ", imagePath='" + imagePath + '\'' + 88 | '}'; 89 | } 90 | } 91 | -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: 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