动态替换Android碎片

我刚开始玩弄Fragments，我正在尝试动态添加/替换碎片。动态替换Android碎片

我可以将它们添加就好了，像这样......

@Override 
protected void onCreate(Bundle savedInstanceState) 
{ 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_home); 

    FragmentManager fragMan = getSupportFragmentManager(); 
    FragmentTransaction fragTran = fragMan.beginTransaction(); 

    FragOne fOne = new FragOne(); 
    FragTwo fTwo = new FragTwo(); 
    FragThree fThree = new FragThree(); 

    fragTran.add(R.id.frag_cont_one, fOne); 
    fragTran.add(R.id.frag_cont_two, fTwo); 
    fragTran.commit(); 



}

但是当我尝试用fThree更换fTwo应用程序崩溃。继承人如何我在做替换

fragTran.replace(R.id.frag_cont_two, fThree); 
fragTran.addToBackStack(null); 
fragTran.commit();

任何想法？

感谢

10-08 21:30:44.710: E/Trace(3219): error opening trace file: No such file or directory (2) 
10-08 21:30:44.869: D/AndroidRuntime(3219): Shutting down VM 
10-08 21:30:44.869: W/dalvikvm(3219): threadid=1: thread exiting with uncaught exception   (group=0x40a71930) 
10-08 21:30:44.889: E/AndroidRuntime(3219): FATAL EXCEPTION: main 
10-08 21:30:44.889: E/AndroidRuntime(3219): java.lang.RuntimeException: Unable to start activity ComponentInfo{evans.louis.fragments/evans.louis.fragments.Home}: java.lang.IllegalStateException: commit already called 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at android.app.ActivityThread.access$600(ActivityThread.java:141) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at android.os.Handler.dispatchMessage(Handler.java:99) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at android.os.Looper.loop(Looper.java:137) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at android.app.ActivityThread.main(ActivityThread.java:5041) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at java.lang.reflect.Method.invokeNative(Native Method) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at java.lang.reflect.Method.invoke(Method.java:511) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at dalvik.system.NativeStart.main(Native Method) 
10-08 21:30:44.889: E/AndroidRuntime(3219): Caused by: java.lang.IllegalStateException: commit already called 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:582) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:574) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at evans.louis.fragments.Home.onCreate(Home.java:37) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at android.app.Activity.performCreate(Activity.java:5104) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144) 
10-08 21:30:44.889: E/AndroidRuntime(3219):  ... 11 more

编辑：logcat的加入

来源

2013-10-08 Louis Evans

粘贴日志输出从崩溃 – digitaljoel

@digitaljoel DONE！ :) –

谷歌为该错误消息给出了这，这可能是你的问题。 http://stackoverflow.com/questions/18697490/android-erro-commit-already-called-when-remove-a-fragment – digitaljoel

的问题是正确的，在你的logcat输出：

Caused by: java.lang.IllegalStateException: commit already called

你需要开始一个新交易：

fragTran = fragMan.beginTransaction(); 
fragTran.replace(R.id.frag_cont_two, fThree); 
fragTran.addToBackStack(null); 
fragTran.commit();

来源

2013-10-08 21:38:36

啊好吧。我不知道你必须调用beginTransaction（）;再次。这很有用，谢谢！ –

工作正常，没有任何问题。 –

我解决了问题调用commit()并再次更换片段后，你应该从

fragmentTransaction = fragmentManager.beginTransaction(); 

if(position==0){ 
    fragmentTransaction.replace(android.R.id.content, f1_fragment); 
else{ 
    fragmentTransaction.replace(android.R.id.content, f2_fragment); 
} 

fragmentTransaction.addToBackStack(null); 
fragmentTransaction.commit();

否则启动，你会得到提交已经调用错误

来源

2016-03-19 15:25:39 Fazal

动态替换Android碎片

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