android apk静默安装和卸载

静默安装:

在某个触发点自动后台安装指定apk.没有安装界面.新软件自动安装,有旧版本的默默卸载,然后再安装,并且在不受系统设置中的第三方软件安装开关的限制.

 

自己跟踪记录的源码流程

Filemanager中点击apk包之后发送了一个intent出去

/* * uri = file:///storage/sdcard0/download/%E7%99%BE%E9%98%85.apk * mimeType = application/vnd.android.package-archive */ Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(uri, mimeType); startActivity(intent);

 

Android会去系统中的packagemanager中查询哪个apk能响应这个操作.

找到PackageInstaller这个apk.文件路劲位于packages\apps\PackageInstaller

<activity android:name=".PackageInstallerActivity" …..> <intent-filter>…… <data android:mimeType="application/vnd.android.package-archive" />

 

系统会启动这个Activity来进行安装操作

本文档只贴出具体安装的过程,舍弃ui操作,并加以简单说明

mPackageURI = intent.getData();   //获取安装包路劲 mPm = getPackageManager();     //获取packagemanager checkFileInvaild //检测给定的文件是否为一个apk.如果自己确定的东西,省略吧 final File sourceFile = new File(mPackageURI.getPath()); //把路劲转成file类型 PackageParser.Package  mPkgInfo = PackageUtil.getPackageInfo(sourceFile); //解析apk getIconandTitle //根据mPkgInfo获取apk的icon和title.并存起来,对本题无用 if (!isInstallingUnknownAppsAllowed())//此处判断是否允许第三方软件安装.在设置里. initiateInstall(); //开始初始化安装

String pkgName = mPkgInfo.packageName; //得到包名 String[] oldName = mPm.canonicalToCurrentPackageNames(new String[] { pkgName }); if (oldName != null && oldName.length > 0 && oldName[0] != null) { pkgName = oldName[0];   mPkgInfo.setPackageName(pkgName); }//以上是检测是否存在该包名.但是其已经被改变成别的神马了.*我不知道是神马意思 mPm.getApplicationInfo(pkgName,PackageManager.GET_UNINSTALLED_PACKAGES); //检测是否有已经安装并未卸载的同名apk,有则弹出替代框(略过),无则安装 startInstallConfirm(); //弹出安装确认,点击ok newIntent.putExtra(PackageUtil.INTENT_ATTR_APPLICATION_INFO,mPkgInfo.applicationInfo); newIntent.setData(mPackageURI); newIntent.putExtra(Intent.EXTRA_INSTALLER_PACKAGE_NAME, installerPackageName); newIntent.setClass(this, InstallAppProgress.class); //把apk的info传入新的Activity安装 …..

mAppInfo = intent.getParcelableExtra(XXX); mPackageURI = intent.getData(); //从上面得到这些东西 String installerPackageName = getIntent().getStringExtra(xxxxPACKAGE_NAME); PackageInstallObserver observer = new PackageInstallObserver(); pm.installPackage(mPackageURI, observer, installFlags(0), installerPackageName); //安装过程就交个packagemanager去吧.我们不用管了.

//如果你要等待此apk安装完了之后还要处理一些东东的话.看下面 IntentFilter intentFilter = new IntentFilter(); intentFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); intentFilter.addAction(Intent.ACTION_PACKAGE_ADDED); intentFilter.addAction(Intent.ACTION_PACKAGE_REPLACED); intentFilter.addDataScheme("package"); registerReceiver(new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { if (Intent.ACTION_PACKAGE_REMOVED) {} else if (Intent.ACTION_PACKAGE_ADDED || Intent.ACTION_PACKAGE_REPLACED) {}} }, intentFilter); //上面主要就是监听三个事件并在receive中去处理.

 

 

 

 

 

 

 

 

 

 

 

好了.回归主题.静默安装的关键代码已经出来了.只有一行

pm.installPackage(mPackageURI,observer, installFlags(0), installerPackageName);

看源码中该函数说明必须要加上android.Manifest.permission#INSTALL_PACKAGES才行,此权限只有system应用才能使用.所以此应用必须放入system/app下,才能保证其有效.方法就是反射

 

静默安装的第一种方法:

 package com.tnt.autoinstall;

 import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.InputStream;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;

 import android.net.Uri;
 import android.os.Bundle;
 import android.app.Activity;

 public class MainActivity extends Activity {
     private Uri packageUri;

     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         packageUri = getPackageUri();

         install();
     }

     private void install()
     {
         try {
             Class<?> pmService;
             Class<?> activityTherad;
             Method method;

             activityTherad = Class.forName("android.app.ActivityThread");
             Class<?> paramTypes[] = getParamTypes(activityTherad , "getPackageManager");
             method = activityTherad.getMethod("getPackageManager", paramTypes);
             Object PackageManagerService = method.invoke(activityTherad);

             pmService = PackageManagerService.getClass();

             Class<?> paramTypes1[] = getParamTypes(pmService , "installPackage");
             method = pmService.getMethod("installPackage", paramTypes1);
             method.invoke(PackageManagerService , packageUri , null , 0 , null);
         } catch (NoSuchMethodException e) {
             e.printStackTrace();
         } catch (IllegalArgumentException e) {
             e.printStackTrace();
         } catch (IllegalAccessException e) {
             e.printStackTrace();
         } catch (InvocationTargetException e) {
             e.printStackTrace();
         }catch (ClassNotFoundException e1) {
             e1.printStackTrace();
         }
     }

     private Class<?>[] getParamTypes(Class<?> cls, String mName) {
         Class<?> cs[] = null;

         Method[] mtd = cls.getMethods();

         for (int i = 0; i < mtd.length; i++) {
             if (!mtd[i].getName().equals(mName)) {
                 continue;
             }
             cs = mtd[i].getParameterTypes();
         }
         return cs;
     }

     private Uri getPackageUri()
     {
         File file = new File("/storage/sdcard0/download/1.apk");
         return Uri.fromFile(file);
     }
 }

静默安装的第二种方法:

通过adb命令的方式来处理,代码如下,把上面的install函数替换下面代码

   private boolean install()
   {
     String[] args = {"pm", "install", "-r", packageUri.getPath()};
 String result = null;
 ProcessBuilder processBuilder = new ProcessBuilder(args);;
 Process process = null;
 InputStream errIs = null;
 InputStream inIs = null;
 try{
     ByteArrayOutputStream baos = new ByteArrayOutputStream();
     int read = -1;
     process = processBuilder.start();
     errIs = process.getErrorStream();
     while((read = errIs.read()) != -1){
         baos.write(read);
     }
     baos.write('\n');
     inIs = process.getInputStream();
     while((read = inIs.read()) != -1){
         baos.write(read);
     }
     byte[] data = baos.toByteArray();
     result = new String(data);
 }catch(Exception e){
     e.printStackTrace();
 }finally{
     try{
         if(errIs != null){
             errIs.close();
         }
         if(inIs != null){
             inIs.close();
         }
     }catch(Exception e){
         e.printStackTrace();
     }
     if(process != null){
         process.destroy();
     }
 }

 if(result != null && (result.endsWith("Success")||result.endsWith("Success\n")))
 {
     return true;
 }
 return false;
   }

下面看下卸载过程

同样的.需要增加一个权限android:name="android.permission.DELETE_PACKAGES".放入system/app中.

卸载方式一:adb shell pm方式

 private void uninstall2() {
         String[] args = { "pm", "uninstall", "com.popcap.pvzthird" };
         String result = null;
         ProcessBuilder processBuilder = new ProcessBuilder(args);
         ;
         Process process = null;
         InputStream errIs = null;
         InputStream inIs = null;
         try {
             ByteArrayOutputStream baos = new ByteArrayOutputStream();
             int read = -1;
             process = processBuilder.start();
             errIs = process.getErrorStream();
             while ((read = errIs.read()) != -1) {
                 baos.write(read);
             }
             baos.write('\n');
             inIs = process.getInputStream();
             while ((read = inIs.read()) != -1) {
                 baos.write(read);
             }
             byte[] data = baos.toByteArray();
             result = new String(data);
         } catch (Exception e) {
             e.printStackTrace();
         } finally {
             try {
                 if (errIs != null) {
                     errIs.close();
                 }
                 if (inIs != null) {
                     inIs.close();
                 }
             } catch (Exception e) {
                 e.printStackTrace();
             }
             if (process != null) {
                 process.destroy();
             }
         }
     }

卸载方式二:反射调用系统函数

 Class<?> pmService;
             Class<?> activityTherad;
             Method method;

             activityTherad = Class.forName("android.app.ActivityThread");
             Class<?> paramTypes[] = getParamTypes(activityTherad,
                     "getPackageManager");
             method = activityTherad.getMethod("getPackageManager", paramTypes);
             Object PackageManagerService = method.invoke(activityTherad);

             pmService = PackageManagerService.getClass();

             Class<?> paramTypes1[] = getParamTypes(pmService, "deletePackage");
             method = pmService.getMethod("deletePackage", paramTypes1);
             method.invoke(PackageManagerService, "com.popcap.pvzthird", null, 0);