android 代码实现软件的静默安装，卸载功能（转载）

android 代码实现软件的静默安装，卸载功能

研究这个问题有一段时间，不过一直没有测试，就是需要在系统源码下进行编译，嫌麻烦就一直没动手。不过这次项目有这种需求，就必须要实现了。

android源码目录下关于安装卸载类是在，源码\packages\apps\PackageInstaller\src\com\android\packageinstaller目录下。在这几个类中主要都是各种提示框的处理

（安装，替换，卸载，成功，失败等）操作，真正执行安装，卸载逻辑只有两行代码。

好了说一下工作准备：

1，下好系统源码，在Ubantu下搭建好编译环境

2，将要编译的项目工程放入[源码目录]/packages/apps/

创建PackageInstallObserver .java安装监听（安装是否成功）

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class PackageInstallObserver extends IPackageInstallObserver.Stub {

private Context mcontext;

public PackageInstallObserver(Context context){

this.mcontext=context;

}

public void packageInstalled(String packageName, int returnCode) {

Looper.prepare();

if (returnCode == 1) {

Toast.makeText(mcontext, "install Success!", Toast.LENGTH_LONG).show();



} else {

Toast.makeText(mcontext, "install fail!", Toast.LENGTH_LONG).show();

}

Looper.loop();

}

}

IPackageInstallObserver.Stub为系统隐藏类，需要引入import android.content.pm.IPackageInstallObserver;

静默安装方法：

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public void SilentInstall(Context mContext,String packageName, String path) {

Uri uri = Uri.fromFile(new File(path));

int installFlags = 0;

PackageManager pm = mContext.getPackageManager();

try {

PackageInfo packageInfo = pm.getPackageInfo(packageName,

PackageManager.GET_UNINSTALLED_PACKAGES);

if (packageInfo != null) {

installFlags |= PackageManager.INSTALL_REPLACE_EXISTING;

}

} catch (NameNotFoundException e) {

//Log.e(TAG, "NameNotFoundException = " + e.getMessage());

}

PackageInstallObserver observer = new PackageInstallObserver(mContext);

pm.installPackage(uri, observer, installFlags, packageName);

}

静默卸载与安装类似：

卸载监听：

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class PackageDeleteObserver extends IPackageDeleteObserver.Stub {

private Context mcontext;

public PackageDeleteObserver(Context context){

this.mcontext=context;

}

public void packageDeleted(String packageName, int returnCode) {

Looper.prepare();

if (returnCode == 1) {

Toast.makeText(mcontext, "unstall Success!", Toast.LENGTH_LONG).show();

} else {

Toast.makeText(mcontext, "unstall fail!", Toast.LENGTH_LONG).show();

}

Looper.loop();

}

}

需要引入import android.content.pm.IPackageDeleteObserver;

卸载方法：

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public void SilentUnstall(Context mContext,String packageName){

PackageDeleteObserver observer = new PackageDeleteObserver(mContext);

mContext.getPackageManager().deletePackage(packageName, observer, 0);

}

完整代码：

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package com.pioneersoft.pacakgeapp;



import java.io.File;



import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.content.pm.ApplicationInfo;

import android.content.pm.IPackageDeleteObserver;

import android.content.pm.IPackageInstallObserver;

import android.content.pm.PackageManager;

import android.content.pm.PackageInfo;

import android.content.pm.ResolveInfo;

import android.content.pm.PackageManager.NameNotFoundException;

import android.net.Uri;

import android.os.Looper;

import android.widget.Toast;



public class PackageMag {





public void SilentUnstall(Context mContext,String packageName){

PackageDeleteObserver observer = new PackageDeleteObserver(mContext);

mContext.getPackageManager().deletePackage(packageName, observer, 0);

}



public void SilentInstall(Context mContext,String packageName, String path) {

Uri uri = Uri.fromFile(new File(path));

int installFlags = 0;

PackageManager pm = mContext.getPackageManager();

try {

PackageInfo packageInfo = pm.getPackageInfo(packageName,

PackageManager.GET_UNINSTALLED_PACKAGES);

if (packageInfo != null) {

installFlags |= PackageManager.INSTALL_REPLACE_EXISTING;

}

} catch (NameNotFoundException e) {

//Log.e(TAG, "NameNotFoundException = " + e.getMessage());

}

PackageInstallObserver observer = new PackageInstallObserver(mContext);

pm.installPackage(uri, observer, installFlags, packageName);

}



class PackageInstallObserver extends IPackageInstallObserver.Stub {

private Context mcontext;

public PackageInstallObserver(Context context){

this.mcontext=context;

}

public void packageInstalled(String packageName, int returnCode) {

Looper.prepare();

if (returnCode == 1) {

Toast.makeText(mcontext, "install Success!", Toast.LENGTH_LONG).show();

} else {

Toast.makeText(mcontext, "install fail!", Toast.LENGTH_LONG).show();

}

Looper.loop();

}

}



class PackageDeleteObserver extends IPackageDeleteObserver.Stub {

private Context mcontext;

public PackageDeleteObserver(Context context){

this.mcontext=context;

}

public void packageDeleted(String packageName, int returnCode) {

Looper.prepare();

if (returnCode == 1) {

Toast.makeText(mcontext, "unstall Success!", Toast.LENGTH_LONG).show();

} else {

Toast.makeText(mcontext, "unstall fail!", Toast.LENGTH_LONG).show();

}

Looper.loop();

}

}



}

添加权限：

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

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

最好再加上系统签名，以获取更高权限 android:sharedUserId="android.uid.system"

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<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.pioneersoft.pacakgeapp"

android:sharedUserId="android.uid.system"

android:versionCode="1"

android:versionName="1.0" >

在根目录下创建编写Android.mk文件，这里Android.mk我是从 源码package/APP/PackageInstaller中的Android.mk拷贝过来，

然后修改LOCAL_PACKAGE_NAME := //你的项目名称

完整文件如下：

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LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)



LOCAL_MODULE_TAGS := optional



LOCAL_SRC_FILES := $(call all-subdir-java-files)



LOCAL_PACKAGE_NAME := PackageApp

LOCAL_CERTIFICATE := platform



include $(BUILD_PACKAGE)

做完上述所有步骤之后，就可以将这个项目放在源码环境下编译了，在源码编译前需要删除gen,bin目录，然后进行编译

编译成成功后会在out\target\product\leader75_6628_ics2\system\app生成改项目的apk，然后push到system/app或者编译在升级包里面就可以使用了