├── .gitignore ├── .idea ├── compiler.xml ├── copyright │ └── profiles_settings.xml ├── encodings.xml ├── misc.xml ├── modules.xml └── runConfigurations.xml ├── LICENSE ├── README.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── glh │ │ └── productdetailsui │ │ └── ExampleInstrumentedTest.java │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── com │ │ │ └── glh │ │ │ └── productdetailsui │ │ │ ├── MyCustomScrollView.java │ │ │ ├── ProductDetailActivity.java │ │ │ └── ScreenUtils.java │ └── res │ │ ├── drawable-xhdpi │ │ ├── collect.png │ │ ├── header_default.png │ │ ├── pic.png │ │ ├── pic1.png │ │ ├── pic2.png │ │ └── share.png │ │ ├── drawable │ │ └── back.png │ │ ├── layout │ │ └── activity_product_detail.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_round.png │ │ ├── mipmap-xxxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ └── values │ │ ├── colors.xml │ │ ├── strings.xml │ │ └── styles.xml │ └── test │ └── java │ └── com │ └── glh │ └── productdetailsui │ └── ExampleUnitTest.java ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── settings.gradle └── uigit └── 20170701214412871.gif /.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/dictionaries 41 | .idea/libraries 42 | 43 | # Keystore files 44 | *.jks 45 | 46 | # External native build folder generated in Android Studio 2.2 and later 47 | .externalNativeBuild 48 | 49 | # Google Services (e.g. APIs or Firebase) 50 | google-services.json 51 | 52 | # Freeline 53 | freeline.py 54 | freeline/ 55 | freeline_project_description.json 56 | -------------------------------------------------------------------------------- /.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /.idea/copyright/profiles_settings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /.idea/encodings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 19 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 46 | 47 | 48 | 49 | 50 | 1.8 51 | 52 | 57 | 58 | 59 | 60 | 61 | 62 | -------------------------------------------------------------------------------- /.idea/modules.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /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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-------------------------------------------------------------------------------- 1 | # 1.效果图 2 | 3 | ![这里写图片描述](https://github.com/gaolh89/ProductDetailsUi/blob/master/uigit/20170701214412871.gif) 4 | 5 | (真实的动画比这流畅得多) 6 | 7 | # 2.实现思路 8 | 9 | ## (1)总体思路: 10 | 11 | 滑动时,标题栏颜色发生渐变.标题栏点击后,定位到具体的位置.整个界面可以分为标题栏、界面2部分。而界面分为图片、评论、商户详情3部分. 12 | 13 | ## (2)如何实现标题栏的渐变: 14 | 先在布局中写好，根据滑动位置的情况，将标题栏的颜色（包括字体颜色）由最浅的颜色，逐渐变成最终稳定的颜色（比如我的是黑色） 15 | 16 | ## (3)如何实现点击标题后定位到具体位置： 17 | 说白一点，就是获取图片、评论、商户详情这三个控件的高度。点击事件后，滑动相应高度即可 18 | 19 | 20 | # 3.实现细节 21 | 22 | ## (1)布局 23 | 3.1.1公司使用的自定义ScrollView. 24 | 25 | 3.1.2.图片、评论、商户详情三部分控件的高度需要,布局中需要体现.具体代码见源码 26 | ## (2)逻辑实现 27 | 3.2.1.自定义的ScrollView. 28 | 监听新旧横向、纵向的位置,通过接口回调的方式传递给activity进行相应操作.代码如下: 29 | 30 | ``` 31 | public class MyCustomScrollView extends ScrollView { 32 | 33 | public interface ScrollViewListener { 34 | 35 | void onScrollChanged(MyCustomScrollView scrollView, int x, int y, 36 | int oldx, int oldy); 37 | 38 | } 39 | 40 | private ScrollViewListener scrollViewListener = null; 41 | 42 | public MyCustomScrollView(Context context) { 43 | super(context); 44 | } 45 | 46 | public MyCustomScrollView(Context context, AttributeSet attrs, 47 | int defStyle) { 48 | super(context, attrs, defStyle); 49 | } 50 | 51 | public MyCustomScrollView(Context context, AttributeSet attrs) { 52 | super(context, attrs); 53 | } 54 | 55 | public void setScrollViewListener(ScrollViewListener scrollViewListener) { 56 | this.scrollViewListener = scrollViewListener; 57 | } 58 | 59 | @Override 60 | protected void onScrollChanged(int x, int y, int oldx, int oldy) { 61 | super.onScrollChanged(x, y, oldx, oldy); 62 | if (scrollViewListener != null) { 63 | scrollViewListener.onScrollChanged(this, x, y, oldx, oldy); 64 | } 65 | } 66 | 67 | } 68 | ``` 69 | 3.2.2.标题栏的渐变 70 | 主要是相关api的调用,一个是.setBackgroundColor 和.setTextColor,另外一个是Color.argb 71 | 由于在图片控件区域标题栏渐变效果,所以需要进行相关计算: 72 | 73 | 74 | ``` 75 | float scale = (float) y / 400; //y是控件纵向高度.400为图片的高度 76 | float alpha = (255 * scale); 77 | ``` 78 | 由于不能整除且尽量精准,我们使用float类型.颜色的GRB值范围是0-255.这个没啥好解释的 79 | 80 | ``` 81 | layout.setBackgroundColor(Color.argb((int) alpha, 250, 250, 250)); 82 | View1.setBackgroundColor(Color.argb((int) alpha, 0, 0, 0)); 83 | tvGoods.setTextColor(Color.argb((int) alpha, 0, 0, 0)); 84 | tvComment.setTextColor(Color.argb((int) alpha, 0, 0, 0)); 85 | tvDetails.setTextColor(Color.argb((int) alpha, 0, 0, 0)); 86 | ``` 87 | 88 | 3.2.3.控件的测量: 89 | 对于控件的测试,网上有比较多的资料,也比较杂,有的甚至是坑人的.下面链接这篇文章[(相关链接.直接点击即可)](http://blog.csdn.net/johnny901114/article/details/7839512),无论是排版还是内容讲解,都很不错.对控件宽高测试不是很清楚的,可以看看. 90 | 在真实的项目中,一般第三种使用最多.代码如下: 91 | ` ViewTreeObserver mGoods = goods.getViewTreeObserver(); 92 | ViewTreeObserver mComment = comment.getViewTreeObserver(); 93 | 94 | mComment.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { 95 | @Override 96 | public void onGlobalLayout() { 97 | comment.getViewTreeObserver().removeGlobalOnLayoutListener( 98 | this); 99 | commentHeight = comment.getHeight(); 100 | } 101 | }); 102 | 103 | 104 | mGoods.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { 105 | @Override 106 | public void onGlobalLayout() { 107 | goods.getViewTreeObserver().removeGlobalOnLayoutListener( 108 | this); 109 | commentHeightQD = goods.getHeight() - ScreenUtils.getStatusHeight(c) - ScreenUtils 110 | .dip2px(ProductDetailActivity.this, 40); 111 | 112 | scrollView.setScrollViewListener(ProductDetailActivity.this); 113 | } 114 | });` 115 | 116 | 其中涉及一个小的细节知识点:dp与px.代码中的数值,一般都是dp,而我们需要的又是px,所以需要转换. 117 | 118 | ``` 119 | /** 120 | * 根据手机的分辨率从 dp 的单位 转成为 px(像素) 121 | */ 122 | public static int dip2px(Context context, float dpValue) { 123 | final float scale = context.getResources().getDisplayMetrics().density; 124 | return (int) (dpValue * scale + 0.5f); 125 | } 126 | ``` 127 | dp与px之间的转换网上的工具类比较多,大家在平时多积累对提高开发效率有好处 128 | 129 | 3.2.4.点击标题后定位到相应位置: 130 | 获取控件高度后,结合自定义scrollView的滚动接口回调,就可以实现.以点击"评论"为例: 131 | 132 | ``` 133 | tvComment.setOnClickListener(new View.OnClickListener() { 134 | @Override 135 | public void onClick(View v) { 136 | 137 | handler2.post(new Runnable() { 138 | 139 | @Override 140 | public void run() { 141 | scrollView.smoothScrollTo(0, commentHeightQD); 142 | } 143 | }); 144 | } 145 | }); 146 | ``` 147 | 148 | 3.2.5.其他细节: 149 | 在UI界面滚动过程中,主要分为5部分. 150 | 一是进入界面时最初始的位置: 151 | 二是滑动距离小于商品图的高度时 152 | 三是当滑动超过商品图而小于评论 153 | 四是当滑动超过评论起始位置而小于评论结束位置 154 | 五是当滑动超过评论结束位置 155 | 其中,第一部分默认看不见. 156 | 第二部分是标题的渐变过程,逻辑见2.标题栏的渐变 157 | 第三、四、五逻辑是一模一样的,主要是哪个控件显示,哪个控件掩藏 158 | 159 | ``` 160 | /** 161 | * 设置标题的颜色为黑色，背景为白色可见 162 | */ 163 | private void setTitleColor() { 164 | layout.setBackgroundColor(Color.argb(255, 250, 250, 250)); 165 | tvGoods.setTextColor(Color.argb(255, 0, 0, 0)); 166 | tvComment.setTextColor(Color.argb(255, 0, 0, 0)); 167 | tvDetails.setTextColor(Color.argb(255, 0, 0, 0)); 168 | } 169 | 170 | private void clearAndShowThis(View currentView) { 171 | View1.setVisibility(View.INVISIBLE); 172 | View2.setVisibility(View.INVISIBLE); 173 | View3.setVisibility(View.INVISIBLE); 174 | View1.setBackgroundColor(Color.argb(255, 0, 0, 0)); 175 | View2.setBackgroundColor(Color.argb(255, 0, 0, 0)); 176 | View3.setBackgroundColor(Color.argb(255, 0, 0, 0)); 177 | currentView.setVisibility(View.VISIBLE); 178 | } 179 | ``` 180 | 181 | 182 | # 4.其他 183 | 184 | (1).[我的博客](http://blog.csdn.net/gaolh89/article/details/74080088) 185 | 186 | (2).如果您觉得这篇博客对您有帮助,star就是对我最大的鼓励! 187 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 25 5 | buildToolsVersion "25.0.2" 6 | defaultConfig { 7 | applicationId "com.glh.productdetailsui" 8 | minSdkVersion 15 9 | targetSdkVersion 25 10 | versionCode 1 11 | versionName "1.0" 12 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | } 21 | 22 | dependencies { 23 | compile fileTree(dir: 'libs', include: ['*.jar']) 24 | androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { 25 | exclude group: 'com.android.support', module: 'support-annotations' 26 | }) 27 | compile 'com.android.support:appcompat-v7:25.3.1' 28 | compile 'com.android.support.constraint:constraint-layout:1.0.0-beta4' 29 | testCompile 'junit:junit:4.12' 30 | } 31 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in C:\AndroidRunEnvironment\sdk1122-lite/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | 19 | # Uncomment this to preserve the line number information for 20 | # debugging stack traces. 21 | #-keepattributes SourceFile,LineNumberTable 22 | 23 | # If you keep the line number information, uncomment this to 24 | # hide the original source file name. 25 | #-renamesourcefileattribute SourceFile 26 | -------------------------------------------------------------------------------- /app/src/androidTest/java/com/glh/productdetailsui/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.glh.productdetailsui; 2 | 3 | import android.content.Context; 4 | import android.support.test.InstrumentationRegistry; 5 | import android.support.test.runner.AndroidJUnit4; 6 | 7 | import org.junit.Test; 8 | import org.junit.runner.RunWith; 9 | 10 | import static org.junit.Assert.*; 11 | 12 | /** 13 | * Instrumentation test, which will execute on an Android device. 14 | * 15 | * @see Testing documentation 16 | */ 17 | @RunWith(AndroidJUnit4.class) 18 | public class ExampleInstrumentedTest { 19 | @Test 20 | public void useAppContext() throws Exception { 21 | // Context of the app under test. 22 | Context appContext = InstrumentationRegistry.getTargetContext(); 23 | 24 | assertEquals("com.glh.productdetailsui", appContext.getPackageName()); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 6 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | -------------------------------------------------------------------------------- /app/src/main/java/com/glh/productdetailsui/MyCustomScrollView.java: -------------------------------------------------------------------------------- 1 | package com.glh.productdetailsui; 2 | 3 | import android.content.Context; 4 | import android.util.AttributeSet; 5 | import android.widget.ScrollView; 6 | 7 | 8 | /** 9 | * Author: 高磊华 10 | * Email: 984992087@qq.com 11 | * Time: 2017/4/23 12 | * Describe: 带滚动监听的scrollview 13 | */ 14 | 15 | 16 | public class MyCustomScrollView extends ScrollView { 17 | 18 | public interface ScrollViewListener { 19 | 20 | void onScrollChanged(MyCustomScrollView scrollView, int x, int y, 21 | int oldx, int oldy); 22 | 23 | } 24 | 25 | private ScrollViewListener scrollViewListener = null; 26 | 27 | public MyCustomScrollView(Context context) { 28 | super(context); 29 | } 30 | 31 | public MyCustomScrollView(Context context, AttributeSet attrs, 32 | int defStyle) { 33 | super(context, attrs, defStyle); 34 | } 35 | 36 | public MyCustomScrollView(Context context, AttributeSet attrs) { 37 | super(context, attrs); 38 | } 39 | 40 | public void setScrollViewListener(ScrollViewListener scrollViewListener) { 41 | this.scrollViewListener = scrollViewListener; 42 | } 43 | 44 | @Override 45 | protected void onScrollChanged(int x, int y, int oldx, int oldy) { 46 | super.onScrollChanged(x, y, oldx, oldy); 47 | if (scrollViewListener != null) { 48 | scrollViewListener.onScrollChanged(this, x, y, oldx, oldy); 49 | } 50 | } 51 | 52 | } -------------------------------------------------------------------------------- /app/src/main/java/com/glh/productdetailsui/ProductDetailActivity.java: -------------------------------------------------------------------------------- 1 | package com.glh.productdetailsui; 2 | 3 | import android.content.Context; 4 | import android.graphics.Color; 5 | import android.os.Bundle; 6 | import android.os.Handler; 7 | import android.support.annotation.Nullable; 8 | import android.support.v7.app.AppCompatActivity; 9 | import android.util.Log; 10 | import android.view.View; 11 | import android.view.ViewTreeObserver; 12 | import android.widget.ImageButton; 13 | import android.widget.LinearLayout; 14 | import android.widget.RelativeLayout; 15 | import android.widget.ScrollView; 16 | import android.widget.TextView; 17 | import android.widget.Toast; 18 | 19 | 20 | public class ProductDetailActivity extends AppCompatActivity implements MyCustomScrollView 21 | .ScrollViewListener, View.OnClickListener { 22 | 23 | Context c; 24 | 25 | TextView tvShare, tvCollect, tvShop, tvSettlement; //底部的四个按钮 26 | TextView tvGoods, tvComment, tvDetails; //标题的三个控件.代码逻辑的关键 27 | View View1, View2, View3; //标题的三个控件下面对应的横线.代码逻辑的关键 28 | MyCustomScrollView scrollView; 29 | ImageButton ivBack; 30 | RelativeLayout layout; //标题栏 31 | LinearLayout goods; 32 | LinearLayout comment; 33 | 34 | private int commentHeight; //评论版块控件的高度 35 | private int commentHeightQD; 36 | 37 | 38 | @Override 39 | protected void onCreate(@Nullable Bundle savedInstanceState) { 40 | super.onCreate(savedInstanceState); 41 | setContentView(R.layout.activity_product_detail); 42 | 43 | initView(); 44 | initNavigation(); 45 | initTitle(); 46 | initListeners(); 47 | } 48 | 49 | 50 | /** 51 | * 底部控件 52 | */ 53 | private void initNavigation() { 54 | 55 | tvShare = (TextView) findViewById(R.id.tv_share); 56 | tvCollect = (TextView) findViewById(R.id.tv_collect); 57 | tvShop = (TextView) findViewById(R.id.tv_shop); 58 | tvSettlement = (TextView) findViewById(R.id.tv_settlement); 59 | 60 | tvShare.setOnClickListener(this); 61 | tvCollect.setOnClickListener(this); 62 | tvShop.setOnClickListener(this); 63 | tvSettlement.setOnClickListener(this); 64 | 65 | } 66 | 67 | private Handler handler1 = new Handler(); 68 | private Handler handler2 = new Handler(); 69 | private Handler handler3 = new Handler(); 70 | 71 | /** 72 | * 滑动到顶部 73 | */ 74 | private void scrollToPosition() { 75 | handler1.post(new Runnable() { 76 | 77 | @Override 78 | public void run() { 79 | scrollView.fullScroll(ScrollView.FOCUS_UP); 80 | } 81 | }); 82 | } 83 | 84 | private void initTitle() { 85 | 86 | tvGoods.setOnClickListener(new View.OnClickListener() { 87 | @Override 88 | public void onClick(View v) { 89 | scrollToPosition(); 90 | } 91 | }); 92 | 93 | 94 | tvComment.setOnClickListener(new View.OnClickListener() { 95 | @Override 96 | public void onClick(View v) { 97 | 98 | handler2.post(new Runnable() { 99 | 100 | @Override 101 | public void run() { 102 | scrollView.smoothScrollTo(0, commentHeightQD); 103 | } 104 | }); 105 | } 106 | }); 107 | 108 | 109 | tvDetails.setOnClickListener(new View.OnClickListener() { 110 | @Override 111 | public void onClick(View v) { 112 | 113 | handler3.post(new Runnable() { 114 | 115 | @Override 116 | public void run() { 117 | scrollView.smoothScrollTo(0, commentHeightQD + commentHeight); 118 | } 119 | }); 120 | } 121 | }); 122 | } 123 | 124 | 125 | private void initView() { 126 | 127 | tvGoods = (TextView) findViewById(R.id.goods); 128 | tvComment = (TextView) findViewById(R.id.commment); 129 | tvDetails = (TextView) findViewById(R.id.detail); 130 | 131 | View1 = findViewById(R.id.view1); 132 | View2 = findViewById(R.id.view2); 133 | View3 = findViewById(R.id.view3); 134 | 135 | scrollView = (MyCustomScrollView) findViewById(R.id.scrollview); 136 | ivBack = (ImageButton) findViewById(R.id.back); 137 | 138 | layout = (RelativeLayout) findViewById(R.id.title_label); 139 | 140 | goods = ((LinearLayout) findViewById(R.id.ll_goods)); 141 | comment = (LinearLayout) findViewById(R.id.ll_comment); 142 | 143 | ivBack.setOnClickListener(this); 144 | 145 | 146 | } 147 | 148 | 149 | @Override 150 | public void onScrollChanged(MyCustomScrollView scrollView, int x, int y, int oldx, int oldy) { 151 | // TODO Auto-generated method stub 152 | // int commentQidian = commentHight - ScreenUtils.getStatusHeight(c) - ScreenUtils 153 | // .dip2px(c, 154 | // 10); 155 | Log.d("yyyyyy", "y" + y + ",commentHeightQD" + 156 | commentHeightQD + ",commentHeight" + commentHeight); 157 | 158 | try { 159 | if (y <= 0) { //设置标题的背景颜色 160 | layout.setBackgroundColor(Color.argb(0, 250, 250, 250)); 161 | tvGoods.setTextColor(Color.argb(0, 0, 0, 0)); 162 | tvComment.setTextColor(Color.argb(0, 0, 0, 0)); 163 | tvDetails.setTextColor(Color.argb(0, 0, 0, 0)); 164 | View1.setBackgroundColor(Color.argb(0, 0, 0, 0)); 165 | ivBack.setVisibility(View.GONE); 166 | } else if (y > 0 && y <= 400) { //滑动距离小于商品图的高度时，设置背景和字体颜色颜色透明度渐变 167 | float scale = (float) y / 400; 168 | float alpha = (255 * scale); 169 | clearAndShowThis(View1); 170 | layout.setBackgroundColor(Color.argb((int) alpha, 250, 250, 250)); 171 | View1.setBackgroundColor(Color.argb((int) alpha, 0, 0, 0)); 172 | tvGoods.setTextColor(Color.argb((int) alpha, 0, 0, 0)); 173 | tvComment.setTextColor(Color.argb((int) alpha, 0, 0, 0)); 174 | tvDetails.setTextColor(Color.argb((int) alpha, 0, 0, 0)); 175 | ivBack.setVisibility(View.VISIBLE); 176 | } else if (y > 400 && y < commentHeightQD) { //当滑动超过商品图而小于评论 177 | setTitleColor(); 178 | clearAndShowThis(View1); 179 | //当滑动超过评论起始位置而小于评论结束位置 180 | } else if (y >= commentHeightQD && y < (commentHeightQD + commentHeight)) { 181 | setTitleColor(); 182 | clearAndShowThis(View2); 183 | //当滑动超过评论结束位置（默认为详情） 184 | } else if (y >= (commentHeightQD + commentHeight)) { 185 | setTitleColor(); 186 | clearAndShowThis(View3); 187 | } 188 | } catch (NullPointerException e) { 189 | e.printStackTrace(); 190 | } 191 | } 192 | 193 | /** 194 | * 设置标题的颜色为黑色，背景为白色可见 195 | */ 196 | private void setTitleColor() { 197 | layout.setBackgroundColor(Color.argb(255, 250, 250, 250)); 198 | tvGoods.setTextColor(Color.argb(255, 0, 0, 0)); 199 | tvComment.setTextColor(Color.argb(255, 0, 0, 0)); 200 | tvDetails.setTextColor(Color.argb(255, 0, 0, 0)); 201 | } 202 | 203 | private void clearAndShowThis(View currentView) { 204 | View1.setVisibility(View.INVISIBLE); 205 | View2.setVisibility(View.INVISIBLE); 206 | View3.setVisibility(View.INVISIBLE); 207 | View1.setBackgroundColor(Color.argb(255, 0, 0, 0)); 208 | View2.setBackgroundColor(Color.argb(255, 0, 0, 0)); 209 | View3.setBackgroundColor(Color.argb(255, 0, 0, 0)); 210 | currentView.setVisibility(View.VISIBLE); 211 | } 212 | 213 | 214 | /** 215 | * 获取顶部图片高度后，设置滚动监听 216 | */ 217 | private void initListeners() { 218 | 219 | ViewTreeObserver mGoods = goods.getViewTreeObserver(); 220 | ViewTreeObserver mComment = comment.getViewTreeObserver(); 221 | 222 | mComment.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { 223 | @Override 224 | public void onGlobalLayout() { 225 | comment.getViewTreeObserver().removeGlobalOnLayoutListener( 226 | this); 227 | commentHeight = comment.getHeight(); 228 | } 229 | }); 230 | 231 | 232 | mGoods.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { 233 | @Override 234 | public void onGlobalLayout() { 235 | goods.getViewTreeObserver().removeGlobalOnLayoutListener( 236 | this); 237 | commentHeightQD = goods.getHeight() - ScreenUtils.getStatusHeight(c) - ScreenUtils 238 | .dip2px(ProductDetailActivity.this, 40); 239 | 240 | scrollView.setScrollViewListener(ProductDetailActivity.this); 241 | } 242 | }); 243 | 244 | } 245 | 246 | 247 | @Override 248 | public void onClick(View v) { 249 | switch (v.getId()) { 250 | case R.id.tv_share: 251 | Toast.makeText(this, "分享成功", Toast.LENGTH_SHORT).show(); 252 | break; 253 | case R.id.tv_collect: 254 | Toast.makeText(this, "收藏成功", Toast.LENGTH_SHORT).show(); 255 | break; 256 | case R.id.tv_shop: 257 | Toast.makeText(this, "进入购物车", Toast.LENGTH_SHORT).show(); 258 | break; 259 | case R.id.tv_settlement: 260 | Toast.makeText(this, "进入计算", Toast.LENGTH_SHORT).show(); 261 | break; 262 | case R.id.back: 263 | Toast.makeText(this, "返回", Toast.LENGTH_SHORT).show(); 264 | } 265 | } 266 | 267 | 268 | } 269 | 270 | -------------------------------------------------------------------------------- /app/src/main/java/com/glh/productdetailsui/ScreenUtils.java: -------------------------------------------------------------------------------- 1 | package com.glh.productdetailsui; 2 | 3 | import android.content.Context; 4 | 5 | 6 | /** 7 | * Author: 高磊华 8 | * Email: 984992087@qq.com 9 | * Time: 2015/12/19 10 | * Describe: 屏幕相关的工具类 11 | */ 12 | 13 | public class ScreenUtils { 14 | private ScreenUtils() { 15 | /* cannot be instantiated */ 16 | throw new UnsupportedOperationException("cannot be instantiated"); 17 | } 18 | 19 | 20 | /** 21 | * 获得状态栏的高度 22 | * 23 | * @param context 24 | * @return 25 | */ 26 | public static int getStatusHeight(Context context) { 27 | int statusHeight = -1; 28 | try { 29 | Class clazz = Class.forName("com.android.internal.R$dimen.xml"); 30 | Object object = clazz.newInstance(); 31 | int height = Integer.parseInt(clazz.getField("status_bar_height") 32 | .get(object).toString()); 33 | statusHeight = context.getResources().getDimensionPixelSize(height); 34 | } catch (Exception e) { 35 | e.printStackTrace(); 36 | } 37 | return statusHeight; 38 | } 39 | 40 | 41 | /** 42 | * 根据手机的分辨率从 dp 的单位 转成为 px(像素) 43 | */ 44 | public static int dip2px(Context context, float dpValue) { 45 | final float scale = context.getResources().getDisplayMetrics().density; 46 | return (int) (dpValue * scale + 0.5f); 47 | } 48 | 49 | } 50 | -------------------------------------------------------------------------------- /app/src/main/res/drawable-xhdpi/collect.png: -------------------------------------------------------------------------------- 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/app/src/test/java/com/glh/productdetailsui/ExampleUnitTest.java: -------------------------------------------------------------------------------- 1 | package com.glh.productdetailsui; 2 | 3 | import org.junit.Test; 4 | 5 | import static org.junit.Assert.*; 6 | 7 | /** 8 | * Example local unit test, which will execute on the development machine (host). 9 | * 10 | * @see Testing documentation 11 | */ 12 | public class ExampleUnitTest { 13 | @Test 14 | public void addition_isCorrect() throws Exception { 15 | assertEquals(4, 2 + 2); 16 | } 17 | } -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | // Top-level build file where you can add configuration options common to all sub-projects/modules. 2 | 3 | buildscript { 4 | repositories { 5 | jcenter() 6 | } 7 | dependencies { 8 | classpath 'com.android.tools.build:gradle:2.3.3' 9 | 10 | // NOTE: Do not place your application dependencies here; they belong 11 | // in the individual module build.gradle files 12 | } 13 | } 14 | 15 | allprojects { 16 | repositories { 17 | jcenter() 18 | } 19 | } 20 | 21 | task clean(type: Delete) { 22 | delete rootProject.buildDir 23 | } 24 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | 3 | # IDE (e.g. Android Studio) users: 4 | # Gradle settings configured through the IDE *will override* 5 | # any settings specified in this file. 6 | 7 | # For more details on how to configure your build environment visit 8 | # http://www.gradle.org/docs/current/userguide/build_environment.html 9 | 10 | # Specifies the JVM arguments used for the daemon process. 11 | # The setting is particularly useful for tweaking memory settings. 12 | org.gradle.jvmargs=-Xmx1536m 13 | 14 | # When configured, Gradle will run in incubating parallel mode. 15 | # This option should only be used with decoupled projects. More details, visit 16 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 17 | # org.gradle.parallel=true 18 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gaolhjy/ProductDetailsUi/a04d41d37dbd902f6034beed7d7ac7f941829e84/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Sat Jun 24 15:41:00 CST 2017 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 10 | DEFAULT_JVM_OPTS="" 11 | 12 | APP_NAME="Gradle" 13 | APP_BASE_NAME=`basename "$0"` 14 | 15 | # Use the maximum available, or set MAX_FD != -1 to use that value. 16 | MAX_FD="maximum" 17 | 18 | warn ( ) { 19 | echo "$*" 20 | } 21 | 22 | die ( ) { 23 | echo 24 | echo "$*" 25 | echo 26 | exit 1 27 | } 28 | 29 | # OS specific support (must be 'true' or 'false'). 30 | cygwin=false 31 | msys=false 32 | darwin=false 33 | case "`uname`" in 34 | CYGWIN* ) 35 | cygwin=true 36 | ;; 37 | Darwin* ) 38 | darwin=true 39 | ;; 40 | MINGW* ) 41 | msys=true 42 | ;; 43 | esac 44 | 45 | # Attempt to set APP_HOME 46 | # Resolve links: $0 may be a link 47 | PRG="$0" 48 | # Need this for relative symlinks. 49 | while [ -h "$PRG" ] ; do 50 | ls=`ls -ld "$PRG"` 51 | link=`expr "$ls" : '.*-> \(.*\)$'` 52 | if expr "$link" : '/.*' > /dev/null; then 53 | PRG="$link" 54 | else 55 | PRG=`dirname "$PRG"`"/$link" 56 | fi 57 | done 58 | SAVED="`pwd`" 59 | cd "`dirname \"$PRG\"`/" >/dev/null 60 | APP_HOME="`pwd -P`" 61 | cd "$SAVED" >/dev/null 62 | 63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 64 | 65 | # Determine the Java command to use to start the JVM. 66 | if [ -n "$JAVA_HOME" ] ; then 67 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 68 | # IBM's JDK on AIX uses strange locations for the executables 69 | JAVACMD="$JAVA_HOME/jre/sh/java" 70 | else 71 | JAVACMD="$JAVA_HOME/bin/java" 72 | fi 73 | if [ ! -x "$JAVACMD" ] ; then 74 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 75 | 76 | Please set the JAVA_HOME variable in your environment to match the 77 | location of your Java installation." 78 | fi 79 | else 80 | JAVACMD="java" 81 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 82 | 83 | Please set the JAVA_HOME variable in your environment to match the 84 | location of your Java installation." 85 | fi 86 | 87 | # Increase the maximum file descriptors if we can. 88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then 89 | MAX_FD_LIMIT=`ulimit -H -n` 90 | if [ $? -eq 0 ] ; then 91 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 92 | MAX_FD="$MAX_FD_LIMIT" 93 | fi 94 | ulimit -n $MAX_FD 95 | if [ $? -ne 0 ] ; then 96 | warn "Could not set maximum file descriptor limit: $MAX_FD" 97 | fi 98 | else 99 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 100 | fi 101 | fi 102 | 103 | # For Darwin, add options to specify how the application appears in the dock 104 | if $darwin; then 105 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 106 | fi 107 | 108 | # For Cygwin, switch paths to Windows format before running java 109 | if $cygwin ; then 110 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 111 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 112 | JAVACMD=`cygpath --unix "$JAVACMD"` 113 | 114 | # We build the pattern for arguments to be converted via cygpath 115 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 116 | SEP="" 117 | for dir in $ROOTDIRSRAW ; do 118 | ROOTDIRS="$ROOTDIRS$SEP$dir" 119 | SEP="|" 120 | done 121 | OURCYGPATTERN="(^($ROOTDIRS))" 122 | # Add a user-defined pattern to the cygpath arguments 123 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 124 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 125 | fi 126 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 127 | i=0 128 | for arg in "$@" ; do 129 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 130 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 131 | 132 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 133 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 134 | else 135 | eval `echo args$i`="\"$arg\"" 136 | fi 137 | i=$((i+1)) 138 | done 139 | case $i in 140 | (0) set -- ;; 141 | (1) set -- "$args0" ;; 142 | (2) set -- "$args0" "$args1" ;; 143 | (3) set -- "$args0" "$args1" "$args2" ;; 144 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 145 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 146 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 147 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 148 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 149 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 150 | esac 151 | fi 152 | 153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules 154 | function splitJvmOpts() { 155 | JVM_OPTS=("$@") 156 | } 157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS 158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" 159 | 160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" 161 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 12 | set DEFAULT_JVM_OPTS= 13 | 14 | set DIRNAME=%~dp0 15 | if "%DIRNAME%" == "" set DIRNAME=. 16 | set APP_BASE_NAME=%~n0 17 | set APP_HOME=%DIRNAME% 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windowz variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | if "%@eval[2+2]" == "4" goto 4NT_args 53 | 54 | :win9xME_args 55 | @rem Slurp the command line arguments. 56 | set CMD_LINE_ARGS= 57 | set _SKIP=2 58 | 59 | :win9xME_args_slurp 60 | if "x%~1" == "x" goto execute 61 | 62 | set CMD_LINE_ARGS=%* 63 | goto execute 64 | 65 | :4NT_args 66 | @rem Get arguments from the 4NT Shell from JP Software 67 | set CMD_LINE_ARGS=%$ 68 | 69 | :execute 70 | @rem Setup the command line 71 | 72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if "%ERRORLEVEL%"=="0" goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 85 | exit /b 1 86 | 87 | :mainEnd 88 | if "%OS%"=="Windows_NT" endlocal 89 | 90 | :omega 91 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app' 2 | -------------------------------------------------------------------------------- /uigit/20170701214412871.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gaolhjy/ProductDetailsUi/a04d41d37dbd902f6034beed7d7ac7f941829e84/uigit/20170701214412871.gif --------------------------------------------------------------------------------