android如何静默方式来安装apk

通常情况下，android是没有提供静默方式的上层接口，我们需要在android源代码下来调用这个隐藏的接口来完成静默安装。
最重要的就是参考android系统目录下的packages/apps/PackageInstaller，
当中有两个文件 PackageInstallerActivity.java,InstallAppProgress.java ,前者就是我们通常看到的带有提示对话框的安装应用程序，后者是点确定安装后调用的intent。
现提供一个静默安装的关键类，该类在android2.2下成功编译, 其中通过循环调用接口instatllBatch则可实现批量安装
当然最后的应用程序别忘记添加权限

<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" />

package com.android.util;

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.content.pm.ApplicationInfo;

import android.content.pm.PackageParser;

import android.net.Uri;

import android.util.Log;

import android.util.DisplayMetrics;

import android.content.pm.IPackageInstallObserver;

import android.content.pm.IPackageDeleteObserver;

import android.os.FileUtils;

import android.os.Handler;

import android.os.Message;

public class PackageInstaller {

private File mTmpFile;

private final int INSTALL_COMPLETE = 1;

final static int SUCCEEDED = 1;

final static int FAILED = 0;

private final static String TAG = "PackInstaller";

private Context mContext;

private ApplicationInfo mAppInfo;

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) {

Log.i(TAG, "path=" + path);

int installFlags = 0;

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

PackageParser.Package mPkgInfo = getPackageInfo(mPackageURI);

mAppInfo = mPkgInfo.applicationInfo;

String packageName = mAppInfo.packageName;

Log.i(TAG, "====install packageName ="+packageName);

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);

}

PackageInstallObserver observer = new PackageInstallObserver();

pm.installPackage(mPackageURI, observer, installFlags,

packageName);

}

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);

}

/*

* Utility method to get package information for a given packageURI

*/

public PackageParser.Package getPackageInfo(Uri packageURI) {

final String archiveFilePath = packageURI.getPath();

PackageParser packageParser = new PackageParser(archiveFilePath);

File sourceFile = new File(archiveFilePath);

DisplayMetrics metrics = new DisplayMetrics();

metrics.setToDefaults();

PackageParser.Package pkg = packageParser.parsePackage(sourceFile,

archiveFilePath, metrics, 0);

// Nuke the parser reference.

packageParser = null;

return pkg;

}

/*

* Utility method to get application information for a given packageURI

*/

public ApplicationInfo getApplicationInfo(Uri packageURI) {

final String archiveFilePath = packageURI.getPath();

PackageParser packageParser = new PackageParser(archiveFilePath);

File sourceFile = new File(archiveFilePath);

DisplayMetrics metrics = new DisplayMetrics();

metrics.setToDefaults();

PackageParser.Package pkg = packageParser.parsePackage(sourceFile, archiveFilePath, metrics, 0);

if (pkg == null) {

return null;

}

return pkg.applicationInfo;

}

private Handler mHandler = new Handler() {

public void handleMessage(Message msg) {

switch (msg.what) {

case INSTALL_COMPLETE:

if(msg.arg1 == SUCCEEDED) {

} else {}

break;

default:

break;

}

}

};

}

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