Android 靜默方式實現大量安裝卸載應用程式的深入分析

前段時間做了一個大量安裝卸載應用程式的小應用，由於安裝卸載應用程式的部分API是隱藏的，所以必須在ubuntu下下載Android系統源碼，並編譯之後使用MM命令編譯產生APK檔案，其實也難。

思路是這樣的，在XX/packages/apps目錄下有一個PackageInstaller的應用程式，Android機器中安裝卸載都是由這個應用程式完成的。但是它沒有大量安裝和卸載的功能，如果要在自己的應用程式中添加大量安裝和卸載的功能，其實很簡單，只需要參考PakcageInstaller裡面的安裝卸載代碼加個迴圈就可以了。但值得注意的是在編譯的過程中必須複製PackageInstaller裡面的Android.mk檔案，修改檔案為工程目錄名。
好了，廢話不再多說，下面是關鍵代碼
1、 Android.mk檔案
複製代碼 代碼如下:LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)

LOCAL_MODULE_TAGS := optional

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

LOCAL_PACKAGE_NAME := PackageInstaller
LOCAL_CERTIFICATE := platform

include $(BUILD_PACKAGE)

複製代碼 代碼如下: LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)

LOCAL_MODULE_TAGS := optional

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

LOCAL_PACKAGE_NAME := PackageInstaller
LOCAL_CERTIFICATE := platform

include $(BUILD_PACKAGE)

2、PakcageInstaller.java檔案（關鍵代碼）
複製代碼 代碼如下: package cn.ceadic.apkmgr;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.Uri;
import android.util.Log;

import android.content.pm.IPackageInstallObserver;
import android.content.pm.IPackageDeleteObserver;
import android.os.FileUtils;

public class PackageInstaller {

private File mTmpFile;
private final String TMP_FILE_NAME = "tmpCopy.apk";

private final static String TAG = "PackInstaller";
private Context mContext;

public PackageInstaller(Context context) {
mContext = context;
}

public void install(String path,String packageName){
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File(path)),
"application/vnd.android.package-archive");
mContext.startActivity(intent);
}

public void instatllBatch(String path, String packageName) {

Log.i(TAG, "path=" + path);
int installFlags = 0;
PackageManager pm = mContext.getPackageManager();
try {
PackageInfo pi = pm.getPackageInfo(packageName,
PackageManager.GET_UNINSTALLED_PACKAGES);
if (pi != null) {
installFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
}
} catch (NameNotFoundException e) {
}
if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
Log.w(TAG, "Replacing package:" + packageName);
}

// Create temp file before invoking install api
mTmpFile = createTempPackageFile(path);
if (mTmpFile == null) {
// Message msg = mHandler.obtainMessage(INSTALL_COMPLETE);
// msg.arg1 = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
// mHandler.sendMessage(msg);
return;
}
Uri mPackageURI = Uri.parse("file://" + mTmpFile.getPath());
String installerPackageName = mContext.getIntent().getStringExtra(
Intent.EXTRA_INSTALLER_PACKAGE_NAME);

PackageInstallObserver observer = new PackageInstallObserver();
pm.installPackage(mPackageURI, observer, installFlags,
installerPackageName);
}

private File createTempPackageFile(String filePath) {
File tmpPackageFile = mContext.getFileStreamPath(TMP_FILE_NAME);
if (tmpPackageFile == null) {
Log.w(TAG, "Failed to create temp file");
return null;
}
if (tmpPackageFile.exists()) {
tmpPackageFile.delete();
}
// Open file to make it world readable
FileOutputStream fos;
try {
fos = openFileOutput(TMP_FILE_NAME, MODE_WORLD_READABLE);
} catch (FileNotFoundException e1) {
Log.e(TAG, "Error opening file " + TMP_FILE_NAME);
return null;
}
try {
fos.close();
} catch (IOException e) {
Log.e(TAG, "Error opening file " + TMP_FILE_NAME);
return null;
}

File srcPackageFile = new File(filePath);
if (!FileUtils.copyFile(srcPackageFile, tmpPackageFile)) {
Log.w(TAG, "Failed to make copy of file: " + srcPackageFile);
return null;
}
return tmpPackageFile;
}

private class PackageInstallObserver extends IPackageInstallObserver.Stub {
public void packageInstalled(String packageName, int returnCode) {
// Message msg = mHandler.obtainMessage(INSTALL_COMPLETE);
// msg.arg1 = returnCode;
// mHandler.sendMessage(msg);
Log.i(TAG, "====INSTALL_COMPLETE");
}
}

private class PackageDeleteObserver extends IPackageDeleteObserver.Stub {
public void packageDeleted(boolean succeeded) {
// Message msg = mHandler.obtainMessage(UNINSTALL_COMPLETE);
// msg.arg1 = succeeded?SUCCEEDED:FAILED;
// mHandler.sendMessage(msg);
Log.i(TAG, "====UNINSTALL_COMPLETE");
}
}

public void uninstall(String packageName){
Uri packageURI = Uri.parse("package:" + packageName);
Intent uninstallIntent = new Intent(Intent.ACTION_DELETE,
packageURI);
mContext.startActivity(uninstallIntent);
}

public void uninstallBatch(String packageName) {
PackageDeleteObserver observer = new PackageDeleteObserver();
mContext.getPackageManager().deletePackage(packageName, observer, 0);

}
}

複製代碼 代碼如下: package cn.ceadic.apkmgr;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.Uri;
import android.util.Log;

import android.content.pm.IPackageInstallObserver;
import android.content.pm.IPackageDeleteObserver;
import android.os.FileUtils;

public class PackageInstaller {

private File mTmpFile;
private final String TMP_FILE_NAME = "tmpCopy.apk";

private final static String TAG = "PackInstaller";
private Context mContext;

public PackageInstaller(Context context) {
mContext = context;
}

public void install(String path,String packageName){
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File(path)),
"application/vnd.android.package-archive");
mContext.startActivity(intent);
}

public void instatllBatch(String path, String packageName) {

Log.i(TAG, "path=" + path);
int installFlags = 0;
PackageManager pm = mContext.getPackageManager();
try {
PackageInfo pi = pm.getPackageInfo(packageName,
PackageManager.GET_UNINSTALLED_PACKAGES);
if (pi != null) {
installFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
}
} catch (NameNotFoundException e) {
}
if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
Log.w(TAG, "Replacing package:" + packageName);
}

// Create temp file before invoking install api
mTmpFile = createTempPackageFile(path);
if (mTmpFile == null) {
// Message msg = mHandler.obtainMessage(INSTALL_COMPLETE);
// msg.arg1 = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
// mHandler.sendMessage(msg);
return;
}
Uri mPackageURI = Uri.parse("file://" + mTmpFile.getPath());
String installerPackageName = mContext.getIntent().getStringExtra(
Intent.EXTRA_INSTALLER_PACKAGE_NAME);

PackageInstallObserver observer = new PackageInstallObserver();
pm.installPackage(mPackageURI, observer, installFlags,
installerPackageName);
}

private File createTempPackageFile(String filePath) {
File tmpPackageFile = mContext.getFileStreamPath(TMP_FILE_NAME);
if (tmpPackageFile == null) {
Log.w(TAG, "Failed to create temp file");
return null;
}
if (tmpPackageFile.exists()) {
tmpPackageFile.delete();
}
// Open file to make it world readable
FileOutputStream fos;
try {
fos = openFileOutput(TMP_FILE_NAME, MODE_WORLD_READABLE);
} catch (FileNotFoundException e1) {
Log.e(TAG, "Error opening file " + TMP_FILE_NAME);
return null;
}
try {
fos.close();
} catch (IOException e) {
Log.e(TAG, "Error opening file " + TMP_FILE_NAME);
return null;
}

File srcPackageFile = new File(filePath);
if (!FileUtils.copyFile(srcPackageFile, tmpPackageFile)) {
Log.w(TAG, "Failed to make copy of file: " + srcPackageFile);
return null;
}
return tmpPackageFile;
}

private class PackageInstallObserver extends IPackageInstallObserver.Stub {
public void packageInstalled(String packageName, int returnCode) {
// Message msg = mHandler.obtainMessage(INSTALL_COMPLETE);
// msg.arg1 = returnCode;
// mHandler.sendMessage(msg);
Log.i(TAG, "====INSTALL_COMPLETE");
}
}

private class PackageDeleteObserver extends IPackageDeleteObserver.Stub {
public void packageDeleted(boolean succeeded) {
// Message msg = mHandler.obtainMessage(UNINSTALL_COMPLETE);
// msg.arg1 = succeeded?SUCCEEDED:FAILED;
// mHandler.sendMessage(msg);
Log.i(TAG, "====UNINSTALL_COMPLETE");
}
}

public void uninstall(String packageName){
Uri packageURI = Uri.parse("package:" + packageName);
Intent uninstallIntent = new Intent(Intent.ACTION_DELETE,
packageURI);
mContext.startActivity(uninstallIntent);
}

public void uninstallBatch(String packageName) {
PackageDeleteObserver observer = new PackageDeleteObserver();
mContext.getPackageManager().deletePackage(packageName, observer, 0);

}
}

3、別忘記添加許可權
複製代碼 代碼如下: <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.INSTALL_PACKAGES" />
<uses-permission android:name="android.permission.DELETE_PACKAGES" />
<uses-permission android:name="android.permission.CLEAR_APP_CACHE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.CLEAR_APP_USER_DATA" />

複製代碼 代碼如下: <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.INSTALL_PACKAGES" />
<uses-permission android:name="android.permission.DELETE_PACKAGES" />
<uses-permission android:name="android.permission.CLEAR_APP_CACHE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.CLEAR_APP_USER_DATA" />

以上代碼在Android2.1的SDK中編譯通過，並正確大量安裝卸載應用程式