我需要与另一Fragment
更换在一个Activity
Fragment
替换一个片段,下面是Activity
的层文件:机器人:不能与其他
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/home_layout_container">
<fragment android:name="com.foo.FragA"
android:id="@+id/home_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</FrameLayout>
所以默认有弗拉加 ,现在我想用取代它FragB在活动中,我所做的:
public void onRegionClicked(Region region) {
RegionInfoFragment rif = RegionInfoFragment.newInstance(region);
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.replace(R.id.home_list, rif);
}
但我得到异常:
>6:24:40.685: ERROR/AndroidRuntime(9194): Uncaught handler: thread main exiting due to uncaught exception
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at android.view.ViewGroup.addViewInner(ViewGroup.java:1857)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at android.view.ViewGroup.addView(ViewGroup.java:1752)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at android.view.ViewGroup.addView(ViewGroup.java:1709)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at android.view.ViewGroup.addView(ViewGroup.java:1689)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at android.support.v4.app.NoSaveStateFrameLayout.wrap(NoSaveStateFrameLayout.java:40)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:743)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:933)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:578)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1219)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:380)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at android.os.Handler.handleCallback(Handler.java:587)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at android.os.Handler.dispatchMessage(Handler.java:92)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at android.os.Looper.loop(Looper.java:123)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at android.app.ActivityThread.main(ActivityThread.java:4363)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at java.lang.reflect.Method.invokeNative(Native Method)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at java.lang.reflect.Method.invoke(Method.java:521)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
05-06 16:24:40.692: ERROR/AndroidRuntime(9194): at dalvik.system.NativeStart.main(Native Method)
我该怎么办?
谢谢!
抱歉,我犯了一个错误,我没有错过ft.commit ()在代码中,并得到了上述例外。 – hzxu 2011-05-06 06:37:19
这个视频显示了它的完成方式:[link](https://www.youtube.com/watch?v=KUNsFhcZNAo) – user3800924 2015-12-04 13:36:13