1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
| public class MyApp extends MultiDexApplication {
private int count = 0;
@Override
public void onCreate() {
initActivityLifecycle();
}
private void initActivityLifecycle() {
registerActivityLifecycleCallbacks(new ActivityLifecycleCallbacks() {
@Override
public void onActivityCreated(Activity activity, Bundle bundle) {
}
@Override
public void onActivityStarted(Activity activity) {
count ++;
}
@Override
public void onActivityResumed(Activity activity) {
}
@Override
public void onActivityPaused(Activity activity) {
}
@Override
public void onActivityStopped(Activity activity) {
if(count > 0) {
count--;
}
boolean isBackground = isBackground();
Log.e("tyl","isBackground="+isBackground);
if(isBackground){
//app已经切入到后台
//System.exit(0);
}
}
@Override
public void onActivitySaveInstanceState(Activity activity, Bundle bundle) {
}
@Override
public void onActivityDestroyed(Activity activity) {
}
});
}
/**
* 判断app是否在后台
* @return
*/
public boolean isBackground(){
if(count <= 0){
return true;
} else {
return false;
}
}
}
|