android 应用自动升级安装并打开新版本应用

来源：互联网发布：mac有安卓模拟器吗编辑：程序博客网时间：2024/05/30 23:04

在一些特殊用途的时候，我们需要为APP设计自动安装升级包，并能在自动静默安装后自动打开应用。一般这种用途大都在android工控机上，因为这样的机器大都是具备root权限的，不然的话，如果没有root权限，自动静默安装及自动打开都是不能实现的。

首先，我写了一个工具类用于处理静默安装：

public class UpdateUtil {public static boolean install(String path, Context context) {// 判断root权限if (isRoot()) {// 有root权限，静默安装return apkInstall(path);} else {// 无root权限，用意图安装，无法自动，没有意义File file = new File(path);if (!file.exists())return false;Intent intent = new Intent();intent.setAction("android.intent.action.VIEW");intent.addCategory("android.intent.category.DEFAULT");intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);intent.setDataAndType(Uri.fromFile(file),"application/vnd.android.package-archive");context.startActivity(intent);return true;}}/** 静默安装 */private static boolean apkInstall(String path) {PrintWriter PrintWriter = null;Process process = null;try {process = Runtime.getRuntime().exec("su");PrintWriter = new PrintWriter(process.getOutputStream());PrintWriter.println("chmod 777 " + path);PrintWriter.println("export LD_LIBRARY_PATH=/vendor/lib:/system/lib");PrintWriter.println("pm install -r " + path);PrintWriter.flush();PrintWriter.close();int value = process.waitFor();return value == 0;} catch (Exception e) {e.printStackTrace();} finally {if (process != null) {process.destroy();}}return false;}/** 判断当前设备是否已经获取到root权限 */private static boolean isRoot() {PrintWriter PrintWriter = null;Process process = null;try {process = Runtime.getRuntime().exec("su");PrintWriter = new PrintWriter(process.getOutputStream());PrintWriter.flush();PrintWriter.close();int value = process.waitFor();return value == 0;} catch (Exception e) {e.printStackTrace();} finally {if (process != null) {process.destroy();}}return false;}}

另外需要在新版本中，注册广播，在androidManifest.xml中添加权限并注册：

<uses-permission android:name="android.permission.RESTART_PACKAGES" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

 <receiver android:name="com.example.updatetest.utils.TestReceiver" >            <intent-filter>                <action android:name="android.intent.action.BOOT_COMPLETED" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>            <intent-filter>                <action android:name="android.intent.action.PACKAGE_ADDED" />                <action android:name="android.intent.action.PACKAGE_REMOVED" />                <action android:name="android.intent.action.PACKAGE_REPLACED" />                <data android:scheme="package" />                           </intent-filter>        </receiver>

TestReceiver中注意处理<pre name="code" class="html">android.intent.action.PACKAGE_REPLACED

从而实现自动启动该应用

if (intent.getAction().equalsIgnoreCase("android.intent.action.PACKAGE_REPLACED")) {Intent intent2 = new Intent(context, MainActivity.class);intent2.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);context.startActivity(intent2);    }

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