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);