SherlockFragment cannot be cast to Fragment, my activity is SherlockActivty

Question

I'm just getting started on learning fragments and this error is really frustrating me, I must be missing something simple:

I get an error on launch saying that the Fragment class cannot be cast to android.app.Fragment - I'm not sure why

xml for Activity:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/background_blue" > <Button android:id="@+id/bStartTest" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_alignParentLeft="true" android:layout_marginBottom="16dp" android:layout_marginLeft="16dp" android:layout_marginRight="16dp" android:background="@drawable/btn_main" android:text="@string/start_test" android:textColor="@color/white" android:textSize="24sp" /> <ProgressBar android:id="@+id/pbGetDataBase" style="?android:attr/progressBarStyleLarge" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_centerVertical="true" android:visibility="invisible" /> <TextView android:id="@+id/tvHomeTitle" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:padding="16dp" android:text="@string/app_name" android:textColor="@color/white" android:textSize="34sp" /> <LinearLayout android:id="@+id/firstTimeLayout" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_below="@+id/tvHomeTitle" android:background="@color/background_blue" android:orientation="vertical" android:paddingLeft="16dp" android:paddingRight="16dp" > <fragment android:id="@+id/overviewFragment" android:layout_width="match_parent" android:layout_height="fill_parent" class="com.mycqs.cardiology.OverviewFragment" /> </LinearLayout> </RelativeLayout>

Activity class:

public class HomeActivity extends SherlockActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_home); } }

Fragment class:

public class OverviewFragment extends SherlockFragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.temporary, container, false); return view; } }

--

06-28 22:27:48.077: E/AndroidRuntime(23806): FATAL EXCEPTION: main 06-28 22:27:48.077: E/AndroidRuntime(23806): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mycqs.cardiology/com.mycqs.cardiology.HomeActivity}: android.view.InflateException: Binary XML file line #87: Error inflating class fragment 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2246) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2296) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.app.ActivityThread.access$700(ActivityThread.java:151) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1281) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.os.Handler.dispatchMessage(Handler.java:99) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.os.Looper.loop(Looper.java:137) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.app.ActivityThread.main(ActivityThread.java:5293) 06-28 22:27:48.077: E/AndroidRuntime(23806): at java.lang.reflect.Method.invokeNative(Native Method) 06-28 22:27:48.077: E/AndroidRuntime(23806): at java.lang.reflect.Method.invoke(Method.java:511) 06-28 22:27:48.077: E/AndroidRuntime(23806): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102) 06-28 22:27:48.077: E/AndroidRuntime(23806): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869) 06-28 22:27:48.077: E/AndroidRuntime(23806): at dalvik.system.NativeStart.main(Native Method) 06-28 22:27:48.077: E/AndroidRuntime(23806): Caused by: android.view.InflateException: Binary XML file line #87: Error inflating class fragment 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:710) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.view.LayoutInflater.rInflate(LayoutInflater.java:752) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.view.LayoutInflater.rInflate(LayoutInflater.java:760) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.view.LayoutInflater.inflate(LayoutInflater.java:495) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 06-28 22:27:48.077: E/AndroidRuntime(23806): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:327) 06-28 22:27:48.077: E/AndroidRuntime(23806): at com.actionbarsherlock.internal.ActionBarSherlockNative.setContentView(ActionBarSherlockNative.java:134) 06-28 22:27:48.077: E/AndroidRuntime(23806): at com.actionbarsherlock.app.SherlockActivity.setContentView(SherlockActivity.java:229) 06-28 22:27:48.077: E/AndroidRuntime(23806): at com.mycqs.cardiology.HomeActivity.onCreate(HomeActivity.java:58) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.app.Activity.performCreate(Activity.java:5250) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2210) 06-28 22:27:48.077: E/AndroidRuntime(23806): ... 11 more 06-28 22:27:48.077: E/AndroidRuntime(23806): Caused by: java.lang.ClassCastException: com.mycqs.cardiology.OverviewFragment cannot be cast to android.app.Fragment 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.app.Fragment.instantiate(Fragment.java:585) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.app.Fragment.instantiate(Fragment.java:560) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.app.Activity.onCreateView(Activity.java:4850) 06-28 22:27:48.077: E/AndroidRuntime(23806): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:686) 06-28 22:27:48.077: E/AndroidRuntime(23806): ... 23 more

Have you cleaned the project? Are there any android.app.Fragment imports anywhere? — A--C
– A--C, Commented Jun 28, 2013 at 21:20
Please edit your question and paste in the entire stack trace. — CommonsWare
– CommonsWare, Commented Jun 28, 2013 at 21:22
Yes cleaned it and nope there aren't any android.app.Fragment imports. My minimum api level is set to 8, will this cause the error even though I am using the support package? — Omair Vaiyani
– Omair Vaiyani, Commented Jun 28, 2013 at 21:24
I can't seem to save the logcat to get the trace, the log.txt file is coming up as empty - any other methods to copy stack trace? — Omair Vaiyani
– Omair Vaiyani, Commented Jun 28, 2013 at 21:31
"I can't seem to save the logcat to get the trace" -- highlight the lines, then press Ctrl-C to copy them to the clipboard. — CommonsWare
– CommonsWare, Commented Jun 28, 2013 at 21:34

CommonsWare · Accepted Answer · 2013-06-28 21:41:05Z

Change SherlockActivity to SherlockFragmentActivity. If you are going to use SherlockFragment, SherlockListFragment, etc., you need to host them in a SherlockFragmentActivity.

Collectives™ on Stack Overflow

SherlockFragment cannot be cast to Fragment, my activity is SherlockActivty

1 Answer 1

Comments

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Related