android生命周期参考

public class ActivityDemo extends Activity {  

    private static final String TAG = "ActivityDemo";  

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);  

        Log.e(TAG, "start onCreate~~~");
    }  

    @Override
    protected void onStart() {
        super.onStart();
        Log.e(TAG, "start onStart~~~");
    }  

    @Override
    protected void onRestart() {
        super.onRestart();
        Log.e(TAG, "start onRestart~~~");
    }  

    @Override
    protected void onResume() {
        super.onResume();
        Log.e(TAG, "start onResume~~~");
    }  

    @Override
    protected void onPause() {
        super.onPause();
        Log.e(TAG, "start onPause~~~");
    }  

    @Override
    protected void onStop() {
        super.onStop();
        Log.e(TAG, "start onStop~~~");
    }  

    @Override
    protected void onDestroy() {
        super.onDestroy();
        Log.e(TAG, "start onDestroy~~~");
    }  

}