Android中Activity的生命周期

 1 public class MainActivity extends Activity {
 2 
 3     @Override
 4     protected void onCreate(Bundle savedInstanceState) {
 5         super.onCreate(savedInstanceState);
 6         setContentView(R.layout.activity_main);
 7         System.out.println("onCreate()");
 8     }
 9 
10     @Override
11     protected void onStart() {
12         super.onStart();
13         System.out.println("onStart()");
14     }
15 
16     @Override
17     protected void onResume() {
18         super.onResume();
19         System.out.println("onResume()");
20     }
21 
22     @Override
23     protected void onPause() {
24         super.onPause();
25         System.out.println("onPause()");
26     }
27 
28     @Override
29     protected void onStop() {
30         super.onStop();
31         System.out.println("onStop()");
32     }
33 
34     @Override
35     protected void onDestroy() {
36         super.onDestroy();
37         System.out.println("onDestroy()");
38     }
39 
40     @Override
41     protected void onRestart() {
42         super.onRestart();
43         System.out.println("onRestart()");
44     }