86 |
87 |
88 |
89 |
90 |
91 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # Guide防彩之云APP启动页和导航页,并解决了启动黑屏问题
2 | ######效果图:
3 | 
4 | 一:启动页
5 | * 2秒后进入主界面或者导航页
6 | ```
7 | new Handler().postDelayed(new Runnable() {
8 | @Override
9 | public void run() {
10 | //判断是不是第一次启动此应用,第一次启动进入GuideActivity,否则直接进入MainActivity
11 | if (!SPUtil.getBoolean(Constant.SP_IS_FIRST_LOGIN, false)) {
12 | StartActivityUtil.startActivity(LaunchActivity.this, GuideActivity.class);
13 | }else {
14 | StartActivityUtil.startActivity(LaunchActivity.this, MainActivity.class);
15 | }
16 | finish();
17 | }
18 | }, 2 * 1000);
19 | ```
20 | * 启动黑屏问题
21 | 我们常见的app启动样式有1.点击应用1-3秒后才会弹出启动界面2.有的点击后立即就弹出启动界面,还有的点击后会出现黑屏,白屏的问题。
22 | * 方法一:给app的启动页设置图片背景,此时点击应用会立即启动
23 | ```
24 |
25 |
29 | ```
30 | * 方法二:设置背景为透明色,此时有启动延迟的感觉,其实应用早已启动了,只是背景透明的,看到的还是手机桌面罢了。
31 | ```
32 |
33 |
37 | ```
38 |
39 | 二:导航页
40 | * 引导页
41 | 此处用四张图片来做引导页面,同时在最后一个页面提供一个按钮,点击进入主界面。
42 | ```
43 | //把引导页加入到集合中,views是一个ArrayList
44 | LayoutInflater inflater = LayoutInflater.from(this);
45 | views.add(inflater.inflate(R.layout.view_guide_01, null));
46 | views.add(inflater.inflate(R.layout.view_guide_02, null));
47 | views.add(inflater.inflate(R.layout.view_guide_03, null));
48 | views.add(inflater.inflate(R.layout.view_guide_04, null));
49 | ```
50 | 既然用到了ViewPager,那肯定会用到PagerAdapter并必须实现以下几个方法
51 | destroyItem(), getCount(), instantiateItem(), isViewFromObject()
52 | 提示一下destroyItem(),instantiateItem()两个方法在高版本上已经过时了,分别把他们的第一个参数换成ViewGroup 即可。
53 | ```
54 | public class GuidePagerAdapter extends PagerAdapter {
55 | private List views;
56 | private Activity activity;
57 |
58 | public GuidePagerAdapter(List views, Activity activity) {
59 | this.views = views;
60 | this.activity = activity;
61 | }
62 |
63 | @Override
64 | public void destroyItem(ViewGroup container, int position, Object object) {
65 | container.removeView(views.get(position));
66 | }
67 |
68 | @Override
69 | public int getCount() {
70 | return (views == null) ? 0 : views.size();
71 | }
72 |
73 | @Override
74 | public Object instantiateItem(ViewGroup container, int position) {
75 | container.addView(views.get(position), 0);
76 | //当滑动到最后一页的时候,监听按钮
77 | if (position == views.size() - 1) {
78 | TextView tvEnter = (TextView) container.findViewById(R.id.tv_guide_enter);
79 |
80 | tvEnter.setText(String.format(ResUtil.getString(R.string.guide_enter), APPUtil.getVersionName(activity)));
81 | tvEnter.setOnClickListener(new View.OnClickListener() {
82 |
83 | @Override
84 | public void onClick(View v) {
85 | //在此记录曾经浏览过导航页,下次启动将不会进入导航页
86 | SPUtil.put(Constant.SP_IS_FIRST_LOGIN, true);
87 |
88 | StartActivityUtil.startActivity(activity, MainActivity.class);
89 | activity.finish();
90 | }
91 | });
92 | }
93 | return views.get(position);
94 | }
95 |
96 | @Override
97 | public boolean isViewFromObject(View arg0, Object arg1) {
98 | return (arg0 == arg1);
99 | }
100 | }
101 | ```
102 |
--------------------------------------------------------------------------------
/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 |
--------------------------------------------------------------------------------
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/app/src/main/java/com/github/phoenix/utils/APPUtil.java:
--------------------------------------------------------------------------------
1 | package com.github.phoenix.utils;
2 |
3 | import android.app.ActivityManager;
4 | import android.content.ComponentName;
5 | import android.content.Context;
6 | import android.content.Intent;
7 | import android.content.pm.ApplicationInfo;
8 | import android.content.pm.PackageInfo;
9 | import android.content.pm.PackageManager;
10 | import android.content.pm.Signature;
11 | import android.net.Uri;
12 | import android.util.DisplayMetrics;
13 |
14 | import java.io.File;
15 | import java.io.IOException;
16 | import java.io.InputStream;
17 | import java.lang.reflect.Constructor;
18 | import java.lang.reflect.Field;
19 | import java.lang.reflect.Method;
20 | import java.security.cert.Certificate;
21 | import java.util.ArrayList;
22 | import java.util.List;
23 | import java.util.jar.JarEntry;
24 | import java.util.jar.JarFile;
25 |
26 | /**
27 | * 有关APP的信息包括版本号,版本名,签名,安装路径等
28 | *
29 | * @author Phoenix
30 | * @date 2016-10-13 14:01
31 | */
32 | public class APPUtil {
33 |
34 | private APPUtil(){}
35 |
36 | /**
37 | * 获取应用包名
38 | * @param context 上下文信息
39 | * @return 包名
40 | */
41 | public static String getPackageName(Context context) {
42 | if (context == null) {
43 | throw new IllegalArgumentException("Should not be null");
44 | }
45 | return context.getPackageName();
46 | }
47 |
48 | /**
49 | * @param context 上下文信息
50 | * @return 获取包信息
51 | */
52 | public static PackageInfo getPackageInfo(Context context) {
53 | PackageManager packageManager = context.getPackageManager();
54 | /** getPackageName()是当前类的包名,0代表获取版本信息 */
55 | try {
56 | return packageManager.getPackageInfo(context.getPackageName(), 0);
57 | } catch (PackageManager.NameNotFoundException e) {
58 | e.printStackTrace();
59 | }
60 |
61 | return null;
62 | }
63 |
64 | /**
65 | * 判断应用是否已经启动
66 | * @param context 一个context
67 | * @return boolean
68 | */
69 | public static boolean isAppAlive(Context context){
70 | ActivityManager activityManager = (ActivityManager)context.getSystemService(Context.ACTIVITY_SERVICE);
71 | List processInfos = activityManager.getRunningAppProcesses();
72 | for(int i = 0; i < processInfos.size(); i++){
73 | if(processInfos.get(i).processName.equals(getPackageName(context))){
74 | return true;
75 | }
76 | }
77 | return false;
78 | }
79 |
80 | /**
81 | * 获取应用版本号
82 | * @param context
83 | * @return 成功返回版本号,失败返回-1
84 | */
85 | public static int getVersionCode(Context context) {
86 | if (getPackageInfo(context) != null) {
87 | return getPackageInfo(context).versionCode;
88 | }
89 |
90 | return -1;
91 | }
92 |
93 | /**
94 | * 获取应用版本名
95 | * @param context
96 | * @return 成功返回版本名, 失败返回null
97 | */
98 | public static String getVersionName(Context context) {
99 | if (getPackageInfo(context) != null) {
100 | return getPackageInfo(context).versionName;
101 | }
102 |
103 | return null;
104 | }
105 |
106 | /**
107 | * 获取APP名称
108 | * @param context
109 | * @return
110 | */
111 | public static String getAppName(Context context) {
112 | try {
113 | PackageManager packageManager = context.getPackageManager();
114 | PackageInfo packageInfo = packageManager.getPackageInfo(context.getPackageName(), 0);
115 | int labelRes = packageInfo.applicationInfo.labelRes;
116 | return context.getResources().getString(labelRes);
117 | } catch (PackageManager.NameNotFoundException e) {
118 | e.printStackTrace();
119 | }
120 | return null;
121 | }
122 |
123 | /**
124 | * 打开指定包名的APP
125 | * @param context
126 | * @param packageName
127 | */
128 | public void openOtherApp(Context context, String packageName){
129 | PackageManager manager = context.getPackageManager();
130 | Intent launchIntentForPackage = manager.getLaunchIntentForPackage(packageName);
131 | if (launchIntentForPackage != null) {
132 | context.startActivity(launchIntentForPackage);
133 | }
134 | }
135 |
136 | /**
137 | * 判断当前APP处于前台还是后台;
138 | * 需添加
139 | * 并且必须是系统应用,该方法才有效
140 | * @param context
141 | * @return
142 | */
143 | public static boolean isApplicationBackground(final Context context) {
144 | ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
145 | @SuppressWarnings("deprecation")
146 | List tasks = am.getRunningTasks(1);
147 | if (tasks != null) {
148 | ComponentName topActivity = tasks.get(0).topActivity;
149 | if (!topActivity.getPackageName().equals(context.getPackageName())) {
150 | return true;
151 | }
152 | }
153 | return false;
154 | }
155 |
156 |
157 | /**
158 | * 安装APK
159 | * @param context
160 | * @param apkPath 安装包的路径
161 | */
162 | public static void installApk(Context context, Uri apkPath) {
163 | Intent intent = new Intent();
164 | intent.setAction(Intent.ACTION_VIEW);
165 | // intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
166 | intent.setDataAndType(apkPath, "application/vnd.android.package-archive");
167 | context.startActivity(intent);
168 | }
169 |
170 | /**
171 | * 卸载APP
172 | * @param context
173 | * @param packageName 包名
174 | */
175 | public static void uninstallAPK(Context context, String packageName) {
176 | Uri packageURI = Uri.parse("package:" + packageName);
177 | Intent uninstallIntent = new Intent(Intent.ACTION_DELETE, packageURI);
178 | context.startActivity(uninstallIntent);
179 | }
180 |
181 | /**
182 | * 获取已安装应用的签名
183 | * @param context
184 | * @return
185 | */
186 | public static String getInstalledApkSign(Context context) {
187 | PackageInfo packageInfo;
188 | try {
189 | PackageManager packageManager = context.getPackageManager();
190 | packageInfo = packageManager.getPackageInfo(context.getPackageName(), PackageManager.GET_SIGNATURES);
191 |
192 | return packageInfo.signatures[0].toCharsString();
193 | } catch (PackageManager.NameNotFoundException e) {
194 | e.printStackTrace();
195 | }
196 | return null;
197 | }
198 |
199 | /**
200 | *获取当前应用的 源Apk路径
201 | * @param context
202 | * @return
203 | */
204 | public static String getOldApkSrcPath(Context context){
205 | try {
206 | PackageManager packageManager = context.getPackageManager();
207 | ApplicationInfo applicationInfo = packageManager.getApplicationInfo(context.getPackageName(), 0);
208 |
209 | return applicationInfo.sourceDir;
210 | } catch (PackageManager.NameNotFoundException e) {
211 | e.printStackTrace();
212 | }
213 |
214 | return null;
215 | }
216 |
217 | /**
218 | * 获取未安装APK的签名
219 | * @param file
220 | * @return
221 | * @throws IOException
222 | */
223 | public static List getUninstallApkSignatures(File file){
224 | List signatures=new ArrayList();
225 | try {
226 | JarFile jarFile=new JarFile(file);
227 | JarEntry je=jarFile.getJarEntry("AndroidManifest.xml");
228 | byte[] readBuffer=new byte[8192];
229 | Certificate[] certs=loadCertificates(jarFile, je, readBuffer);
230 | if(certs != null) {
231 | for(Certificate c: certs) {
232 | String sig=toCharsString(c.getEncoded());
233 | signatures.add(sig);
234 | }
235 | }
236 | } catch(Exception ex) {
237 | }
238 | return signatures;
239 | }
240 |
241 | /**
242 | * 加载签名
243 | * @param jarFile
244 | * @param je
245 | * @param readBuffer
246 | * @return
247 | */
248 | private static Certificate[] loadCertificates(JarFile jarFile, JarEntry je, byte[] readBuffer) {
249 | try {
250 | InputStream is=jarFile.getInputStream(je);
251 | while(is.read(readBuffer, 0, readBuffer.length) != -1) {}
252 | is.close();
253 | return je != null ? je.getCertificates() : null;
254 | } catch(IOException e) {
255 | }
256 | return null;
257 | }
258 |
259 | /**
260 | * 将签名转成转成可见字符串
261 | * @param sigBytes
262 | * @return
263 | */
264 | private static String toCharsString(byte[] sigBytes) {
265 | byte[] sig=sigBytes;
266 | final int N=sig.length;
267 | final int N2=N * 2;
268 | char[] text=new char[N2];
269 | for(int j=0; j < N; j++) {
270 | byte v=sig[j];
271 | int d=(v >> 4) & 0xf;
272 | text[j * 2]=(char)(d >= 10 ? ('a' + d - 10) : ('0' + d));
273 | d=v & 0xf;
274 | text[j * 2 + 1]=(char)(d >= 10 ? ('a' + d - 10) : ('0' + d));
275 | }
276 | return new String(text);
277 | }
278 |
279 | /**
280 | * 获取未安装APK的签名, 由于市面上的Android系统版本各一,不推荐使用这种方法获取应用签名
281 | * @param apkPath
282 | * @return
283 | */
284 | public static String getUninstallAPKSignatures(String apkPath) {
285 | //参数列表类型
286 | Class[] typeArgs = new Class[1];
287 | //参数列表值
288 | Object[] valueArgs = new Object[1];
289 | try {
290 | //2.这是一个Package 解释器, 是隐藏的,获取PackageParser的类
291 | Class pkgParserCls = Class.forName("android.content.pm.PackageParser");
292 |
293 | //2.创建PackageParser的实例
294 | typeArgs[0] = String.class;
295 | Constructor pkgParserCt = pkgParserCls.getConstructor(typeArgs);
296 | valueArgs[0] = apkPath;
297 | Object pkgParser = pkgParserCt.newInstance(valueArgs);
298 |
299 | //3.获取PackageParser的类的 parsePackage方法;PackageParser.Package mPkgInfo = packageParser.parsePackage(new File(apkPath), apkPath, metrics, 0);
300 | typeArgs = new Class[4];
301 | typeArgs[0] = File.class;
302 | typeArgs[1] = String.class;
303 | typeArgs[2] = DisplayMetrics.class;
304 | typeArgs[3] = int.class;
305 | Method pkgParser_parsePackageMtd = pkgParserCls.getDeclaredMethod("parsePackage", typeArgs);
306 |
307 | //4.执行parsePackage方法
308 | valueArgs = new Object[4];
309 | valueArgs[0] = new File(apkPath);
310 | valueArgs[1] = apkPath;
311 | DisplayMetrics metrics = new DisplayMetrics();
312 | metrics.setToDefaults();
313 | valueArgs[2] = metrics;
314 | valueArgs[3] = PackageManager.GET_SIGNATURES;
315 | Object pkgParserPkg = pkgParser_parsePackageMtd.invoke(pkgParser, valueArgs);
316 |
317 | //5.获取PackageParser类的collectCertificates方法
318 | typeArgs = new Class[2];
319 | typeArgs[0] = pkgParserPkg.getClass();
320 | typeArgs[1] = int.class;
321 | Method pkgParser_collectCertificatesMtd = pkgParserCls.getDeclaredMethod("collectCertificates", typeArgs);
322 |
323 | //6.执行collectCertificates方法
324 | valueArgs = new Object[2];
325 | valueArgs[0] = pkgParserPkg;
326 | valueArgs[1] = PackageManager.GET_SIGNATURES;
327 | pkgParser_collectCertificatesMtd.invoke(pkgParser, valueArgs);
328 |
329 | //7.获取PackageParser.Package的类的mSignatures属性
330 | Field packageInfoFld = pkgParserPkg.getClass().getDeclaredField("mSignatures");
331 |
332 | //8.获取PackageParser.Package的类的mSignatures属性的值
333 | Signature[] info = (Signature[]) packageInfoFld.get(pkgParserPkg);
334 | return info[0].toCharsString();
335 | } catch (Exception e) {
336 | e.printStackTrace();
337 | }
338 | return null;
339 | }
340 |
341 | }
342 |
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