[Android]当Activity启动模式为singleTask时的生命周期

最新推荐文章于 2025-10-12 18:45:50 发布

原创最新推荐文章于 2025-10-12 18:45:50 发布 · 6.8k 阅读

1 ·

CC 4.0 BY-SA版权

文章标签：

#android

Android 专栏收录该内容

18 篇文章

订阅专栏

当Android Activity设置为singleTask启动模式时，再次启动会经历onRestart、onStart和onResume阶段。若两个singleTask Activity互相跳转，可能会导致前一个Activity被销毁并执行onDestroy方法。

部署运行你感兴趣的模型镜像

01-09 22:59:24.317 13063-13063/com.dongua.activitytest I/Activity1: onCreate: 
01-09 22:59:24.319 13063-13063/com.dongua.activitytest I/Activity1: onStart: 
01-09 22:59:24.321 13063-13063/com.dongua.activitytest I/Activity1: onResume: 
01-09 22:59:29.501 13063-13063/com.dongua.activitytest I/Activity1: onStop: 
01-09 22:59:37.846 13063-13063/com.dongua.activitytest I/Activity1: onRestart: 
01-09 22:59:37.846 13063-13063/com.dongua.activitytest I/Activity1: onStart: 
01-09 22:59:37.847 13063-13063/com.dongua.activitytest I/Activity1: onResume:

即再次启动会调用onRestart-onStart-onResume

当2个都为singleTask的Activity互相跳转时，则会出现如下情况
activity2 跳转到 activity1 activity1再跳转到activity2 后边activity1执行了onDestroy方法被销毁了

01-09 23:24:37.547 7445-7445/com.dongua.activitytest I/Activity12: Activity2+onCreate: 
01-09 23:24:37.548 7445-7445/com.dongua.activitytest I/Activity12: Activity2+onStart: 
01-09 23:24:37.550 7445-7445/com.dongua.activitytest I/Activity12: Activity2+onResume: 
01-09 23:24:40.636 7445-7445/com.dongua.activitytest I/Activity12: Activity1+onCreate: 
01-09 23:24:40.638 7445-7445/com.dongua.activitytest I/Activity12: Activity1+onStart: 
01-09 23:24:40.639 7445-7445/com.dongua.activitytest I/Activity12: Activity1+onResume: 
01-09 23:24:40.971 7445-7445/com.dongua.activitytest I/Activity12: Activity2+onStop: 
01-09 23:24:52.602 7445-7445/com.dongua.activitytest I/Activity12: Activity2+onRestart: 
01-09 23:24:52.603 7445-7445/com.dongua.activitytest I/Activity12: Activity2+onStart: 
01-09 23:24:52.604 7445-7445/com.dongua.activitytest I/Activity12: Activity2+onResume: 
01-09 23:24:52.960 7445-7445/com.dongua.activitytest I/Activity12: Activity1+onStop: 
01-09 23:24:52.960 7445-7445/com.dongua.activitytest I/Activity12: Activity1+onDestroy:

您可能感兴趣的与本文相关的镜像

PyTorch 2.6

PyTorch

Cuda

PyTorch 是一个开源的 Python 机器学习库，基于 Torch 库，底层由 C++ 实现，应用于人工智能领域，如计算机视觉和自然语言处理