Android实现用代码简单安装和卸载APK的方法

public class TestInstallAPK extends Activity {
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 // TODO Auto-generated method stub
 super.onCreate(savedInstanceState);
 // this.unInstallFile();
 installFile();
 }
 /**
 * install APK code
 */
 private void installFile(){
 Intent intent = new Intent(Intent.ACTION_VIEW);
  intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  intent.setAction(android.content.Intent.ACTION_VIEW);
//  String type = getMIMEType(f);
//  intent.setDataAndType(Uri.fromFile(f), type);
 intent.setDataAndType(Uri.parse("file://" + "/sdcard/Android_gc.apk"),
  "application/vnd.android.package-archive");
 this.startActivity(intent);
 }
 /**
 * uninstall APK code
 */
 private void unInstallFile(){
 Uri uri=Uri.parse("package:com.gameclient");
 Intent intent = new Intent(Intent.ACTION_DELETE,uri);
 this.startActivity(intent);
 }
}