A Fragment represents a behavior or a portion of user interface in an Activity. You can combine multiple fragments in a single activity to build a multi-paneUIand reuse a fragment in multiple activities. You can
= null,就会执行mFragments.restoreAllState逻辑,其实这里就牵扯到恢复时重建逻辑,再被后台异常杀死前,或者说在Activity的onStop执行前,Activity的现场以及Fragment的现场都是已经被保存过的,其实是被保存早ActivityManagerService中,保存的格式FragmentState,重建的时候,会采用反射机制重新创Fragment 代码语言:javascript 代码...
1. 打开FragmentA -> 暂停FragmentA -> 恢复FragmentA -> 关闭FragmentA,生命周期变化如下 打开Fragment A 08-13 19:18:32.062 D 27014 27014 FragmentA: onAttach 08-13 19:18:32.062 D 27014 27014 FragmentA: onCreate 08-13 19:18:32.062 D 27014 27014 FragmentA: onCreateView 08-13 19:18:32.0...
DialogFragment实例并调用show(),以传递对话框片段的FragmentManagerFragmentActivity调用getSupportFragmentManager()或从Fragment调用getFragmentManager()来获取FragmentManager。例如: public void confirmFireMissiles() { DialogFragment newFragment = new FireMissilesDialogFragment(); newFragment.show(getSupportFragmentManager...
Fragment是activity的界面中的一部分或一种行为。你可以把多个Fragment们组合到一个activity中来创建一个多面界面并且你可以在多个activity中重用一个Fragment。你可以把Fragment认为模块化的一段activity,它具有自己的生命周期,接收它自己的事件,并可
fragment_b,container,false); //fragment_b就是刚才创建的布局文件 return view; } //override other callback } 4.通过修改FragmentA的布局文件,使用fragment标签的name属性把刚才创建的FragmentB和FragmentA关联起来,具体的代码为: <LinearLayour ...> //这是FragmentA的布局文件 <fragment //使用fragment标签...
you will get more options inFragmentActivity. For details please refer toclick here. UsingFragmentActivityyou can easily buildtab and swapformat. Please remember for each tab you can use differentFragment. TheseFragmentsare reusable. So for any otherFragmentActivityyou can reuse the sameFragment. ...
In fact, if youre converting an existing Android application to use fragments, you might simply move code from your activitys callback methods into the respective callback methods of your fragment. 要创建一个fragment,必须创建一个fragment的子类(或是继承自它的子类)。fragment类的代码看起来很像...
A Fragment is a piece of an application's user interface or behavior that can be placed in an Activity.
publicclass CrashFragment extends Fragment {publicCrashFragment(String tag) {super();}} 1. 2. 3. 4. 5. 6. 之后再Activity中Add或replace添加这个CrashFragment,在CrashFragment显示后,通过RogueKiller模拟后台杀死工具模拟后台杀死,再次从最近任务列表里唤起App的时候,就会遇到崩溃, ...