zoukankan      html  css  js  c++  java
  • 理解Fragment生命周期

    官网帮助文档链接:
     http://developer.android.com/guide/components/fragments.html

    主要看两张图,和跑代码

    一,Fragment的生命周 

              

    二,与Activity生命周期的对比

         

    场景演示 : 切换到该Fragment

    11-29 14:26:35.095: D/AppListFragment(7649): onAttach
    11-29 14:26:35.095: D/AppListFragment(7649): onCreate
    11-29 14:26:35.095: D/AppListFragment(7649): onCreateView
    11-29 14:26:35.100: D/AppListFragment(7649): onActivityCreated
    11-29 14:26:35.120: D/AppListFragment(7649): onStart
    11-29 14:26:35.120: D/AppListFragment(7649): onResume

    屏幕灭掉:

    11-29 14:27:35.185: D/AppListFragment(7649): onPause
    11-29 14:27:35.205: D/AppListFragment(7649): onSaveInstanceState
    11-29 14:27:35.205: D/AppListFragment(7649): onStop

    屏幕解锁

    11-29 14:33:13.240: D/AppListFragment(7649): onStart
    11-29 14:33:13.275: D/AppListFragment(7649): onResume

    切换到其他Fragment:
    11-29 14:33:33.655: D/AppListFragment(7649): onPause
    11-29 14:33:33.655: D/AppListFragment(7649): onStop
    11-29 14:33:33.660: D/AppListFragment(7649): onDestroyView

    切换回本身的Fragment:

    11-29 14:33:55.820: D/AppListFragment(7649): onCreateView
    11-29 14:33:55.825: D/AppListFragment(7649): onActivityCreated
    11-29 14:33:55.825: D/AppListFragment(7649): onStart
    11-29 14:33:55.825: D/AppListFragment(7649): onResume

    回到桌面

    11-29 14:34:26.590: D/AppListFragment(7649): onPause
    11-29 14:34:26.880: D/AppListFragment(7649): onSaveInstanceState
    11-29 14:34:26.880: D/AppListFragment(7649): onStop

    回到应用

    11-29 14:36:51.940: D/AppListFragment(7649): onStart
    11-29 14:36:51.940: D/AppListFragment(7649): onResume

    退出应用

    11-29 14:37:03.020: D/AppListFragment(7649): onPause
    11-29 14:37:03.155: D/AppListFragment(7649): onStop
    11-29 14:37:03.155: D/AppListFragment(7649): onDestroyView
    11-29 14:37:03.165: D/AppListFragment(7649): onDestroy
    11-29 14:37:03.165: D/AppListFragment(7649): onDetach

    比Activity多了一些生命周期,完整和Activity对接上,大家好好利用。

  • 相关阅读:
    gan研究思路
    官方文档的学习
    构建Pytorch虚拟环境
    桌面显示【我的电脑】
    【VUE】计数器模块
    【品优购】字体图标定位的做法
    029垃圾分代回收机制
    03特殊for语句
    28包 package
    jdk特性
  • 原文地址:https://www.cnblogs.com/Sharley/p/5352458.html
Copyright © 2011-2022 走看看