跳转至

Android监听activity生命周期

更新内容: 2023-07-10
  • 2023-07-10 创建文档

Application里面注册 registerActivityLifecycleCallbacks

 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
private int mActStartedCount = 0;
// ------

registerActivityLifecycleCallbacks(new ActivityLifecycleCallbacks() {
    @Override
    public void onActivityCreated(@NonNull Activity activity, @Nullable Bundle savedInstanceState) {

    }

    @Override
    public void onActivityStarted(@NonNull Activity activity) {
        mActStartedCount++;
        if (mActStartedCount == 1) {
            //APP从后台到了前台
        }
    }

    @Override
    public void onActivityResumed(@NonNull Activity activity) {

    }

    @Override
    public void onActivityPaused(@NonNull Activity activity) {

    }

    @Override
    public void onActivityStopped(@NonNull Activity activity) {
        mActStartedCount--;
        if (mActStartedCount == 0) {
            // APP到了后台
        }
    }

    @Override
    public void onActivitySaveInstanceState(@NonNull Activity activity, @NonNull Bundle outState) {

    }

    @Override
    public void onActivityDestroyed(@NonNull Activity activity) {

    }
});
本站说明

一起在知识的海洋里呛水吧。广告内容与本站无关。如果喜欢本站内容，欢迎投喂作者，谢谢支持服务器。如有疑问和建议，欢迎在下方评论~

📖AndroidTutorial 📚AndroidTutorial 🙋反馈问题 🔥最近更新 🍪投喂作者

Ads