CODEWITHSUNDEEP
androidandroid-fragmentsfragment-tab-host
Rishil Bhatt
Rishil Bhatt

Reputation: 185

Fragment can not be cast to android.support.v4.app.Fragment

I am getting this error while implementing Fragment tabhost.

I am basically trying to call an activity in tab view which extends Fragment.

I also tried with extending FragmentActivity, but it gives an error on "onCreateView" method. Upon removing @override annotation from "onCreateView" method, and running the app lead to following error.

    11-27 20:54:06.937: E/AndroidRuntime(4255): FATAL EXCEPTION: main
    11-27 20:54:06.937: E/AndroidRuntime(4255): java.lang.ClassCastException: com.variouscal.calculators.FragmentTab1 cannot be cast to android.support.v4.app.Fragment
    11-27 20:54:06.937: E/AndroidRuntime(4255):     at android.support.v4.app.Fragment.instantiate(Fragment.java:394)
    11-27 20:54:06.937: E/AndroidRuntime(4255):     at android.support.v4.app.FragmentTabHost.doTabChanged(FragmentTabHost.java:339)
    11-27 20:54:06.937: E/AndroidRuntime(4255):     at android.support.v4.app.FragmentTabHost.onTabChanged(FragmentTabHost.java:307)
    11-27 20:54:06.937: E/AndroidRuntime(4255):     at android.widget.TabHost.invokeOnTabChangeListener(TabHost.java:391)
    11-27 20:54:06.937: E/AndroidRuntime

(4255):     at android.widget.TabHost.setCurrentTab(TabHost.java:376)
11-27 20:54:06.937: E/AndroidRuntime(4255):     at android.widget.TabHost$2.onTabSelectionChanged(TabHost.java:150)
11-27 20:54:06.937: E/AndroidRuntime(4255):     at android.widget.TabWidget$TabClickListener.onClick(TabWidget.java:546)
11-27 20:54:06.937: E/AndroidRuntime(4255):     at android.view.View.performClick(View.java:4084)
11-27 20:54:06.937: E/AndroidRuntime(4255):     at android.view.View$PerformClick.run(View.java:16966)
11-27 20:54:06.937: E/AndroidRuntime(4255):     at android.os.Handler.handleCallback(Handler.java:615)
11-27 20:54:06.937: E/AndroidRuntime(4255):     at android.os.Handler.dispatchMessage(Handler.java:92)
11-27 20:54:06.937: E/AndroidRuntime(4255):     at android.os.Looper.loop(Looper.java:137)
11-27 20:54:06.937: E/AndroidRuntime(4255):     at android.app.ActivityThread.main(ActivityThread.java:4931)
11-27 20:54:06.937: E/AndroidRuntime(4255):     at java.lang.reflect.Method.invokeNative(Native Method)
11-27 20:54:06.937: E/AndroidRuntime(4255):     at java.lang.reflect.Method.invoke(Method.java:511)
11-27 20:54:06.937: E/AndroidRuntime(4255):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
11-27 20:54:06.937: E/AndroidRuntime(4255):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:558)
11-27 20:54:06.937: E/AndroidRuntime(4255):     at dalvik.system.NativeStart.main(Native Method)

Upvotes: 1

Views: 1648

Answers (2)

telkins
telkins

Reputation: 10550

The problem is that there are two versions of Fragment:

  • android.app.Fragment
  • android.support.v4.app.Fragment

Be sure to import the correct one and be consistent.

Upvotes: 5

tyczj
tyczj

Reputation: 73916

Without code this is more of a guess but it sounds like your are trying to use android.app.Fragment with android.support.v4.app.Fragment which you cannot do

Upvotes: 1

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