ClassCastException: android.support.v7.widget

Question

I try to use my action bar and i got this execption

   08-08 00:54:08.913: E/AndroidRuntime(18468): FATAL EXCEPTION: main
08-08 00:54:08.913: E/AndroidRuntime(18468): java.lang.ClassCastException: android.support.v7.widget.ShareActionProvider cannot be cast to android.view.ActionProvider
08-08 00:54:08.913: E/AndroidRuntime(18468):    at android.view.MenuInflater$MenuState.readItem(MenuInflater.java:374)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at android.view.MenuInflater.parseMenu(MenuInflater.java:160)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at android.view.MenuInflater.inflate(MenuInflater.java:110)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at com.example.workoutlog.AddWorkOutPage.onCreateOptionsMenu(AddWorkOutPage.java:3190)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at android.app.Activity.onCreatePanelMenu(Activity.java:2490)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at com.android.internal.policy.impl.PhoneWindow.preparePanel(PhoneWindow.java:460)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at com.android.internal.policy.impl.PhoneWindow.doInvalidatePanelMenu(PhoneWindow.java:822)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at com.android.internal.policy.impl.PhoneWindow$1.run(PhoneWindow.java:253)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at android.view.Choreographer.doCallbacks(Choreographer.java:562)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at android.view.Choreographer.doFrame(Choreographer.java:531)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at android.os.Handler.handleCallback(Handler.java:725)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at android.os.Handler.dispatchMessage(Handler.java:92)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at android.os.Looper.loop(Looper.java:137)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at android.app.ActivityThread.main(ActivityThread.java:5226)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at java.lang.reflect.Method.invokeNative(Native Method)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at java.lang.reflect.Method.invoke(Method.java:511)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
08-08 00:54:08.913: E/AndroidRuntime(18468):    at dalvik.system.NativeStart.main(Native Method)

I have read about this error and its something with my java paths.

I tried all kinds of solutins but i still got this error.

Here is my java path order and export:

My codes:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >

<item android:id="@+id/save_wotkout_ab"
    android:title="Add Item"
    android:icon="@android:drawable/ic_menu_save"
    android:showAsAction="ifRoom"/> 

<item android:id="@+id/delete_workout_ab"
    android:title="Add Item"
    android:icon="@android:drawable/ic_delete"
    android:showAsAction="ifRoom"/> 

<item android:id="@+id/search_ab"
    android:title="Add Item"
    android:icon="@android:drawable/ic_menu_search"
    android:actionViewClass="android.support.v7.widget.SearchView"
    android:showAsAction="ifRoom|collapseActionView"/> 

    <item
    android:id="@+id/action_share"
    android:actionProviderClass="android.support.v7.widget.ShareActionProvider"
    android:showAsAction="ifRoom"
    android:title="share"/>

</menu>

Where the exception is:

 @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            // Inflate the menu items for use in the action bar
            MenuInflater inflater = getMenuInflater();
            inflater.inflate(R.menu.add_workout_actionbar, menu);

            MenuItem shareItem = menu.findItem(R.id.action_share);
            mShareActionProvider = (ShareActionProvider)
                    MenuItemCompat.getActionProvider(shareItem);
            mShareActionProvider.setShareIntent(getDefaultIntent());

            return super.onCreateOptionsMenu(menu);
        }

Thank for helping

Answer 1

You need to define a custom namespace and use that namespace for the showAsAction and ActionProviderClass attributes, as below :

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" 
xmlsns:myapp="http://schemas.android.com/apk/res-auto">

<item android:id="@+id/save_wotkout_ab"
    android:title="Add Item"
    android:icon="@android:drawable/ic_menu_save"
    android:showAsAction="ifRoom"/> 

<item android:id="@+id/delete_workout_ab"
    android:title="Add Item"
    android:icon="@android:drawable/ic_delete"
    android:showAsAction="ifRoom"/> 

<item android:id="@+id/search_ab"
    android:title="Add Item"
    android:icon="@android:drawable/ic_menu_search"
    android:actionViewClass="android.support.v7.widget.SearchView"
    android:showAsAction="ifRoom|collapseActionView"/> 

    <item
    android:id="@+id/action_share"
    myapp:actionProviderClass="android.support.v7.widget.ShareActionProvider"
    myapp:showAsAction="ifRoom"
    android:title="share"/>

</menu>

Answer 2

Android Design Adding a Action Provider

Answer 3

Please make sure you are using the Searchview - android.support.v7.widget.SearchView and not the v4 library

Answer 4

java.lang.ClassCastException: android.support.v7.widget.ShareActionProvider cannot be cast to android.view.ActionProvider

You decided not to provide any code, so it is difficult to help you much. However, on line 3190 of AddWorkOutPage.java, you are attempting to convert an android.support.v7.widget.ShareActionProvider into an android.view.ActionProvider. That will not work. My guess is that you chose the wrong import, and have imported android.view.ActionProvider instead of android.support.v7.widget.ActionProvider.