android静默安装

参考博客：http://aswang.iteye.com/blog/1493552
使用android隐蔽api的方式，需在源码下编译：
package com.artion.install;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;


import android.app.Activity;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.IPackageInstallObserver;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class InstallDemoActivity extends Activity {
	private Button btn1=null;
	private Button btn2=null;
    private final int INSTALL_COMPLETE = 1;
    final static int SUCCEEDED = 1;
    final static int FAILED = 0;
    /** Called when the activity is first created. */ 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        btn1=(Button) findViewById(R.id.btn1);
        btn2=(Button) findViewById(R.id.btn2);
        
        btn1.setOnClickListener(listener1);
        btn2.setOnClickListener(listener2);
    }
    
    private OnClickListener listener1=new OnClickListener() {
		
		@Override
		public void onClick(View v) {
			try {
				copyBigDataBase(ASSETS_NAME, DB_PATH + DB_NAME);
				Toast.makeText(getApplicationContext(), "Copy successfully", Toast.LENGTH_SHORT).show();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				Toast.makeText(getApplicationContext(), "Copy failedly", Toast.LENGTH_SHORT).show();
				e.printStackTrace();
			}
			
		}
	};
    
    private OnClickListener listener2=new  OnClickListener(){
    	public void onClick(View v) {
    		String fileName = DB_PATH + DB_NAME;//Environment.getExternalStorageDirectory() +  "/artion/HelloAndroid.apk"; 
    		Uri uri = Uri.fromFile(new File(fileName));

            int installFlags = 0;
            PackageManager pm = getPackageManager();
            try {
                PackageInfo pi = pm.getPackageInfo("com.artion.android.hello", 
                        PackageManager.GET_UNINSTALLED_PACKAGES);
                if(pi != null) {
                    installFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
                }
            } catch (NameNotFoundException e) {
            }


//            String installerPackageName = getIntent().getStringExtra(
//                    Intent.EXTRA_INSTALLER_PACKAGE_NAME);
            
            PackageInstallObserver observer = new PackageInstallObserver();
            pm.installPackage(uri, observer, installFlags, "com.artion.android.hello");
 

    	}
    };
    
    class PackageInstallObserver extends IPackageInstallObserver.Stub { 
        public void packageInstalled(String packageName, int returnCode) {
            Message msg = mHandler.obtainMessage(INSTALL_COMPLETE);
            msg.arg1 = returnCode;
            mHandler.sendMessage(msg);
        }
    };
    
    private Handler mHandler = new Handler() {
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case INSTALL_COMPLETE:
                    // Update the status text
                    // Show the ok button
                	System.out.println("INSTALL_COMPLETE");
                    int centerTextLabel;
                    Drawable centerTextDrawable = null;
                    if(msg.arg1 == SUCCEEDED) {
                    	System.out.println("install successfully   SUCCEEDED");
                    	Toast.makeText(getApplicationContext(), "Install successfully", Toast.LENGTH_SHORT).show();
                    } else {
                    	System.out.println("install failedly   FAILEDLY");
                    	Toast.makeText(getApplicationContext(), "Install failedly", Toast.LENGTH_SHORT).show();
                    }
                    if (centerTextDrawable != null) {}

                    break;
                default:
                    break;
            }
        }
    };
    
    private static String DB_PATH = android.os.Environment
    .getExternalStorageDirectory().getAbsolutePath() + "/artion/";
    private static String DB_NAME = "artion.apk";
    private static final int ASSETS_SUFFIX_BEGIN = 101;
    private static final int ASSETS_SUFFIX_END = 102;
    private static String ASSETS_NAME = "HelloAndroid.apk";
    
    private void copyBigDataBase(String assertName, String outFileName) throws IOException {
		InputStream myInput;
		//String outFileName = DB_PATH + DB_NAME;
		OutputStream myOutput = new FileOutputStream(outFileName);
//		for (int i = ASSETS_SUFFIX_BEGIN; i < ASSETS_SUFFIX_END + 1; i++) {
//			myInput = this.getAssets().open(ASSETS_NAME + "." + i);
//			byte[] buffer = new byte[1024];
//			int length;
//			while ((length = myInput.read(buffer)) > 0) {
//				myOutput.write(buffer, 0, length);
//			}
//			myOutput.flush();
//			myInput.close();
//		}
//		myOutput.close();
		
		myInput = this.getAssets().open(assertName);
		byte[] buffer = new byte[1024];
		int length;
		while ((length = myInput.read(buffer)) > 0) {
			myOutput.write(buffer, 0, length);
		}
		myOutput.flush();
		myInput.close();
		myOutput.close();
	}
}

添加权限：
<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" />
	<!-- 在SDCard中创建与删除文件权限 -->
	<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
	<!-- 往SDCard写入数据权限 -->
	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />