方法1:【使用调用接口方法,由于安装卸载应用程序的部分API是隐藏的,所以必须下载Android系统源码,在源码下开发并编译之后使用MM命令编译生成APK文件】

 

import java.io.File;

 import android.app.Activity;

 import android.os.Bundle;

 import android.content.Intent;

 import android.content.pm.PackageInfo;

 import android.content.pm.PackageManager;

 import android.content.pm.PackageManager.NameNotFoundException;

 import android.content.pm.IPackageInstallObserver;

 import android.content.pm.IPackageDeleteObserver;

 import android.content.res.Resources;

 import android.graphics.drawable.Drawable;

 import android.net.Uri;

 import android.os.Environment;

 import android.os.Handler;

 import android.os.Message;

 import android.util.Log;

 import android.view.View;

 import android.view.View.OnClickListener;

 import android.widget.Button;

 import android.widget.ProgressBar;

 import android.widget.TextView;

 import android.widget.Toast;

 

public class InstallActivity extends Activity {

     /** Called when the activity is first created. */

  private String APK_NAME = "QQHD-mini.apk";

     private Button install = null;

  private Button uninstall = null;

     private final int INSTALL_COMPLETE = 1;

  private final int UNINSTALL_COMPLETE = 2;

     final static int SUCCEEDED = 1;

     final static int FAILED = 0;

     public void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.install_uninstall);

         install = (Button) findViewById(R.id.install);

   uninstall = (Button) findViewById(R.id.uninstall);

   uninstall.setOnClickListener(listener1);

         install.setOnClickListener(listener2);

 }

     private OnClickListener listener2=new  OnClickListener(){

         public void onClick(View v) {

             String fileName = Environment.getExternalStorageDirectory() +  "/" + APK_NAME;

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

 

            int installFlags = 0;

             PackageManager pm = getPackageManager();

             try {

                 PackageInfo pi = pm.getPackageInfo("com.tencent.minihd.qq",

                        PackageManager.GET_UNINSTALLED_PACKAGES);

                 if(pi != null) {

                     installFlags |= PackageManager.INSTALL_REPLACE_EXISTING;

                 }

             } catch (NameNotFoundException e) {}

            

            PackageInstallObserver observer = new PackageInstallObserver();

             pm.installPackage(uri, observer, installFlags, "com.tencent.minihd.qq");

         }

     };

    

    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:

                     int centerTextLabel;

                     Drawable centerTextDrawable = null;

                     if(msg.arg1 == SUCCEEDED) {

                         Toast.makeText(getApplicationContext(), "install apk SUCCEEDED", Toast.LENGTH_SHORT).show();

                     } else {}

                     if (centerTextDrawable != null) {}

 

                    break;

     case UNINSTALL_COMPLETE:

                     int centerTextLabel2;

                     Drawable centerTextDrawable2 = null;

                     if(msg.arg1 == SUCCEEDED) {

                         Toast.makeText(getApplicationContext(), "uninstall apk SUCCEEDED", Toast.LENGTH_SHORT).show();

                     } else {}

                     if (centerTextDrawable2 != null) {}

 

                    break;

                 default:

                     break;

             }

         }

     };

 

  private OnClickListener listener1=new  OnClickListener(){

         public void onClick(View v) {

             PackageManager pm = getPackageManager();

             PackageDeleteObserver observer = new PackageDeleteObserver();

             pm.deletePackage("com.tencent.minihd.qq", observer, 0);

         }

     };

 

  private class PackageDeleteObserver extends IPackageDeleteObserver.Stub {

         public void packageDeleted(String packageName, int returnCode) {

             Message msg = mHandler.obtainMessage(UNINSTALL_COMPLETE);

             msg.arg1 = returnCode;

             mHandler.sendMessage(msg);          

        }   

    }

 

}

 

安装、卸载相关权限<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" />

 

 

 

方法2:【需要获取root权限或者和rom拥有一样的签名,即让该apk以System的身份在系统中运行】

 

 private void test() {

   execCommand("system/bin/pm install -r " + "sdcard/xxx.apk"); // xxx.apk放置在内置储存的根目录下(mnt/sdcard/xxx.apk)

 

  // execCommand("system/bin/pm uninstall " +  PACKAGE_NAME); //PACKAGE_NAME为xxx.apk包名

  }

 

 public boolean execCommand(String cmd) {

   Process process = null;

   try {

    process = Runtime.getRuntime().exec(cmd);

    process.waitFor();

   } catch (Exception e) {

    return false;

   } finally {

    try {

     process.destroy();

    } catch (Exception e) {

    }

   }

   return true;

  }

 

 

 

其他方法:一些第三方jar包等方式