ClassCastException : android.support.v7.widget.ShareActionProvider

Question

I am trying to implement ShareActionProvider but getting :

02-20 04:14:28.894: E/AndroidRuntime(1145): Process: com.learn2crack.tab, PID: 1145
02-20 04:14:28.894: E/AndroidRuntime(1145): java.lang.ClassCastException: android.support.v7.widget.ShareActionProvider cannot be cast to android.view.ActionProvider

menu.xml:

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

I imported this to my class:

    import android.support.v7.widget.ShareActionProvider;

complete Log:

02-20 04:14:28.894: E/AndroidRuntime(1145): FATAL EXCEPTION: main
02-20 04:14:28.894: E/AndroidRuntime(1145): Process: com.learn2crack.tab, PID: 1145
02-20 04:14:28.894: E/AndroidRuntime(1145): java.lang.ClassCastException: android.support.v7.widget.ShareActionProvider cannot be cast to android.view.ActionProvider
02-20 04:14:28.894: E/AndroidRuntime(1145):     at android.view.MenuInflater$MenuState.readItem(MenuInflater.java:374)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at android.view.MenuInflater.parseMenu(MenuInflater.java:160)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at android.view.MenuInflater.inflate(MenuInflater.java:110)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at com.learn2crack.tab.MainActivity.onCreateOptionsMenu(MainActivity.java:72)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at android.app.Activity.onCreatePanelMenu(Activity.java:2538)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at android.support.v4.app.FragmentActivity.onCreatePanelMenu(FragmentActivity.java:224)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at com.android.internal.policy.impl.PhoneWindow.preparePanel(PhoneWindow.java:436)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at com.android.internal.policy.impl.PhoneWindow.doInvalidatePanelMenu(PhoneWindow.java:800)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at com.android.internal.policy.impl.PhoneWindow$1.run(PhoneWindow.java:221)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at android.view.Choreographer.doCallbacks(Choreographer.java:574)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at android.view.Choreographer.doFrame(Choreographer.java:543)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at android.os.Handler.handleCallback(Handler.java:733)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at android.os.Handler.dispatchMessage(Handler.java:95)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at android.os.Looper.loop(Looper.java:136)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at android.app.ActivityThread.main(ActivityThread.java:5017)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at java.lang.reflect.Method.invokeNative(Native Method)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at java.lang.reflect.Method.invoke(Method.java:515)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
02-20 04:14:28.894: E/AndroidRuntime(1145):     at dalvik.system.NativeStart.main(Native Method)

Please post the entire logcat exception and the class where the menu is used. — doorstuck, Feb 20 '14 at 09:26

score 5 · Accepted Answer · answered Feb 20 '14 at 09:30

5

Change to

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:yourapp="http://schemas.android.com/apk/res-auto" >
     <item
      android:id="@+id/share"
      android:title="@string/share"
      yourapp:actionProviderClass="android.support.v7.widget.ShareActionProvider"
      yourapp:showAsAction="always" />
    ...
</menu>

Check the topic Using the ShareActionProvider

http://developer.android.com/guide/topics/ui/actionbar.html

answered Feb 20 '14 at 09:30

Raghunandan

132,755
26
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bro what do you mean by : yourapp – Sun Feb 20 '14 at 09:31
i found code there.. but don't know what to write in place of yourapp – Sun Feb 20 '14 at 09:34
@AbrahimNeil what is line 78 – Raghunandan Feb 20 '14 at 09:37
Line 78:- mShareActionProvider.setShareIntent(getDefaultIntent()); – Sun Feb 20 '14 at 09:41
@AbrahimNeil `mShareActionProvider` is null not initialized properly – Raghunandan Feb 20 '14 at 09:42
let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/47928/discussion-between-raghunandan-and-abrahim-neil) – Raghunandan Feb 20 '14 at 09:43

Iamat8 · Answer 2 · 2015-12-24T09:44:49.060

0

It worked for me.Git Hub link

add this your java class :

import android.widget.ShareActionProvider;
......
private ShareActionProvider m_provider;
......
{
  m_provider = (ShareActionProvider)menu_item.getActionProvider();
}

add this to your menu.xml:

android:actionProviderClass="android.widget.ShareActionProvider"

edited Dec 24 '15 at 09:44

answered May 06 '15 at 10:41

Iamat8

3,888
9
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Jonathan · Answer 3 · 2016-12-04T23:18:34.513

I just met this problem today when following Adding an Easy Share Action on Android Developer Guide.

And it turns out that, on the platform earier than Android 4.0, the SharedActionProvider needs to be used with the v7 compat support library android.support.v7.widget.ShareActionProvider, which means that you need to:

import android.support.v7.widget.ShareActionProvider;

in your Activity java file.

But in fact after Android 4.0, ShareActionProvider android.widget.ShareActionProvider could be used. Therefore the import should be:

import android.widget.ShareActionProvider;

Your problem is that: in menu.xml you used android.support.v7.widget.ShareActionProvider, but in activity java file you imported android.support.v7.widget.ShareActionProvider. Therefore just changing them to the same one would solve the problem, either android.support.v7.widget.ShareActionProvider (if your minSDK < 14) or android.widget.ShareActionProvider (if your minSDK >= 14) would be okay.

ClassCastException : android.support.v7.widget.ShareActionProvider

3 Answers3