Andriod的七大生命周期

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

    }
    @Override
    protected void onDestroy(){
        super.onDestroy();
        Log.v("MainActivity","onDestroy");
    }
    @Override
    protected void onPause(){
        super.onPause();
        Log.v("MainActivity","onPause");
    }
    @Override
    protected void onRestart(){
        super.onRestart();
        Log.v("MainActivity","onRestart");
    }
    @Override
    protected void onResume(){
        super.onResume();
        Log.v("MainActivity","onResume");
    }
    @Override
    protected void onStart(){
        super.onStart();
        Log.v("MainActivity","onStart");
    }
    @Override
    protected void onStop(){
        super.onStop();
        Log.v("MainActivity","onStop");
    }