1、第一种重启方式

public class RebootActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
    
    public void click(View view){
    Intent intent = new Intent();
    intent.setAction(Intent.ACTION_REBOOT);
    intent.putExtra("nowait", 1);
    intent.putExtra("interval", 1);
    intent.putExtra("window", 0);
    sendBroadcast(intent);
    }
}

在清单文件中加入： android:sharedUserId="android.uid.system"

2、第二种重启方式

public class Reboot2Activity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
    
    public void click(View view){
    while(true){
    Toast toast = new Toast(this);
    toast.setView(new View(this));
    toast.show();
    }
    }
}

android系统重启的方式