android 如何在手机第一次开机的时候，把用户放在外置SD卡上的APK自动安装到手机的存储卡。

1.    将APK放到SD卡上某个目录，如apks_preInstall目录.
（对那些有在AndroidManifest.xml中声明了存储路径是internalOnly的apk，不建议使用这种安装方法）
2.    在第一次开机的时候，等sd卡mount上来，去读取这个目录安装APK
 blog.csdn.net/sergeycao
实现代码：
1.  修改\packages\apps\PackageInstaller\AndroidManifest.xml
       

<!-- 增加一个receiver -->

         <receiver android:name=".FirstInstallReceiver">

 <intent-filter>

  <action android:name="android.intent.action.MEDIA_MOUNTED_FOR_FIRTIME" />

 </intent-filter>

 </receiver>

        <!--end   -->

 
2. \packages\apps\PackageInstaller\src\com\android\packageinstaller下增加FirstInstallReceiver.java文件，用于接收第一次SD卡mount上来的广播，以便安装APK，内容如下：
package com.android.packageinstaller;
 

import android.content.ContentValues;

 import android.content.Context;

 import android.content.Intent;

 import android.content.BroadcastReceiver;

 import android.content.IntentFilter;

 import android.content.SharedPreferences;

 import android.util.Log;

 import android.content.pm.IPackageInstallObserver;

 import android.content.pm.PackageInfo;

 import android.content.pm.PackageManager;

 import java.io.File;

 import android.net.Uri;

public class FirstInstallReceiver extends BroadcastReceiver{

          private final String TAG="FirstInstallReceiver";

          private String action = "android.intent.action.MEDIA_MOUNTED_FOR_FIRTIME";

  

                /*下面变量apksPath是外置sd卡上的某个路径, 要修改默认预置的apk存放路径，请修改这个路径。

                  GB版本、GB2、ICS单卡项目：sd卡路径是/mnt/sdcard

                  GB2双卡项目:  默认外置sd卡路径是/mnt/sdcard/sdcard2, 如打开SDSwap Feature,外置SD卡路径则是:/mnt/sdcard

                  ICS双卡项目: 默认外置SD卡路径是/mnt/sdcard2, 如打开SDSwap Feature,外置SD卡路径则是:/mnt/sdcard

                  因此修改要针对不同情况，首先需要确认外置SD卡的路径。

               */

   blog.csdn.net/sergeycao

          private String apksPath = "/mnt/sdcard/apks_preInstall";    //这个例子假设外置SD卡路径为/mnt/sdcard ///

          @Override

          public void onReceive(Context context, Intent intent) {

                    Log.d(TAG,"onReceive:"+intent);

                    new Thread()

                    {

                          public void run() {

                          try

                              {

                             File apksFile = new File(apksPath);

                             PackageManager pm = context.getPackageManager();

                             int installFlags = 0;

                             installFlags |= PackageManager.INSTALL_EXTERNAL;

                             if(apksFile.exists())  {

                                  File[] files = apksFile.listFiles();

                                  for(File f1:files)

   {

                                           String filename = f1.getName();

                                           String type = filename.substring(filename.lastIndexOf(".")+1);

                                           if(type!=null&&type.equals("apk"))

                                         {

                                              Uri mPackageURI = Uri.fromFile(f1);

                                                     pm.installPackage(mPackageURI, null, installFlags, null);

                                          }

                                      }

                             }

                               }

                    catch(Exception e)

                        {

                              Log.d(TAG,"onReceive:install failed:e:"+e);

                         }

                    }

                   }.start();

           }

 }

 
3. 修改mountservice.java， 用于发送第一次开机sd卡mount上来的广播

private void notifyVolumeStateChange(String label, String path, int oldState, int newState) { .....

  else if (newState == VolumeState.Mounted) {

          //mtk added

 String isFirstBoot = SystemProperties.get("persist.sys.mount_is_first");

 if(isFirstBoot == null || isFirstBoot.equals(""))

           {     

 Slog.i(TAG, "first boot");

 SystemProperties.set("persist.sys.mount_is_first", "DONE");

              Intent firIntent = new Intent("android.intent.action.MEDIA_MOUNTED_FOR_FIRTIME");

             mContext.sendStickyBroadcast(firIntent);

           }

          //mtk added

           

  if (DEBUG_EVENTS)  Slog.i(TAG, "updating volume state mounted");

               updatePublicVolumeState(path, Environment.MEDIA_MOUNTED);

 .....