异常:这不受支持，请使用MenuItemCompat.getActionProvider()
异常:这不受支持，请使用MenuItemCompat.getActionProvider()
提问于 2015-01-11 21:38:13
我正在尝试在Android应用程序的操作栏中创建“分享”按钮。下面是我的代码：
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.app.ActionBarActivity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ShareActionProvider;
import android.widget.TextView;和片段部分：
{
private String mForecastText;
public PlaceholderFragment() {
setHasOptionsMenu(true);
}
private Intent sharedIntentMaker(){
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
shareIntent.setType("text/plain");
shareIntent.putExtra(Intent.EXTRA_TEXT, mForecastText + "#SunshineApp");
return shareIntent;
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.menu_detail, menu);
MenuItem menuItem = menu.findItem(R.id.menu_action_share);
ShareActionProvider mShareActionProvider = (ShareActionProvider) menuItem.getActionProvider();
mShareActionProvider.setShareIntent(sharedIntentMaker());
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_detail, container, false);
TextView textIntent = (TextView) rootView.findViewById(R.id.textIntent);
Intent intent = getActivity().getIntent();
mForecastText = intent.getStringExtra("INT_PS");
textIntent.setText(mForecastText);
return rootView;
}当我在模拟器甚至真实设备上运行我的应用程序时，我得到了异常：
AndroidRuntime﹕ FATAL EXCEPTION: main java.lang.UnsupportedOperationException: This is not supported, use MenuItemCompat.getActionProvider()并且它链接到onCreateOptionsMenu()的字符串：
ShareActionProvider mShareActionProvider = (ShareActionProvider) menuItem.getActionProvider();
mShareActionProvider.setShareIntent(sharedIntentMaker());我哪里做错了？
附注:来自logcat的错误堆栈跟踪：
01-11 13:03:17.490 2331 -2331/com.*E/AndroidRuntime:致命异常:主进程:com.*，PID: 2331
java.lang.UnsupportedOperationException: This is not supported, use MenuItemCompat.getActionProvider()
at android.support.v7.internal.view.menu.MenuItemImpl.getActionProvider(MenuItemImpl.java:645)
at com.project.malina.sunsine.DetailActivity$PlaceholderFragment.onCreateOptionsMenu(DetailActivity.java:70)
at android.support.v4.app.Fragment.performCreateOptionsMenu(Fragment.java:1868)
at android.support.v4.app.FragmentManagerImpl.dispatchCreateOptionsMenu(FragmentManager.java:1989)
at android.support.v4.app.FragmentActivity.onCreatePanelMenu(FragmentActivity.java:276)
at android.support.v7.app.ActionBarActivity.superOnCreatePanelMenu(ActionBarActivity.java:276)
at android.support.v7.app.ActionBarActivityDelegate$1.onCreatePanelMenu(ActionBarActivityDelegate.java:79)
at android.support.v7.app.ActionBarActivityDelegateBase.preparePanel(ActionBarActivityDelegateBase.java:979)
at android.support.v7.app.ActionBarActivityDelegateBase.doInvalidatePanelMenu(ActionBarActivityDelegateBase.java:1182)
at android.support.v7.app.ActionBarActivityDelegateBase.access$100(ActionBarActivityDelegateBase.java:79)
at android.support.v7.app.ActionBarActivityDelegateBase$1.run(ActionBarActivityDelegateBase.java:115)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 回答 3
Stack Overflow用户
回答已采纳
发布于 2015-01-11 21:44:27
首先，您不能将android.widget.ShareActionProvider与appcompat-v7操作栏backport (例如，ActionBarActivity)一起使用。要么使用ShareActionProvider的appcompat-v7版本，要么将所有内容移动到本机操作栏。
其次，如果您坚持使用appcompat-v7，那么您就不能安全地使用getActionProvider()，因为该方法在API10及更低级别上将不存在。用MenuItemCompat.getActionProvider(menuItem)替换menuItem.getActionProvider()。
FWIW，实现ShareActionProvider的appcompat-v7版本的here is a sample project。
Stack Overflow用户
发布于 2015-10-09 08:21:22
您可以在下面的链接中遵循Google的Code Sample中的模式。https://github.com/googlesamples/android-ActionBarCompat-ShareActionProvider
最简单的方法是转到Android Studio =>文件，导入示例。然后键入“共享操作提供程序”。
下面是使用ActionBarCompat的ShareActionProvider创建共享操作菜单项的代码，向后兼容v7接口。
MainActivity.java
// BEGIN_INCLUDE(get_sap)
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu resource
getMenuInflater().inflate(R.menu.main_menu, menu);
// Retrieve the share menu item
MenuItem shareItem = menu.findItem(R.id.menu_share);
// Now get the ShareActionProvider from the item
mShareActionProvider = (ShareActionProvider) MenuItemCompat.getActionProvider(shareItem);
// Get the ViewPager's current item position and set its ShareIntent.
int currentViewPagerItem = ((ViewPager) findViewById(R.id.viewpager)).getCurrentItem();
setShareIntent(currentViewPagerItem);
return super.onCreateOptionsMenu(menu);
}
// END_INCLUDE(get_sap
private void setShareIntent(int position) {
// BEGIN_INCLUDE(update_sap)
if (mShareActionProvider != null) {
// Get the currently selected item, and retrieve it's share intent
ContentItem item = mItems.get(position);
Intent shareIntent = item.getShareIntent(MainActivity.this);
// Now update the ShareActionProvider with the new share intent
mShareActionProvider.setShareIntent(shareIntent);
}
// END_INCLUDE(update_sap)
}main_menu.xml
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:support="http://schemas.android.com/apk/res-auto">
<!--
To use ShareActionProvider provided by ActionBarCompat, we reference the class by set the
support:actionProviderClass attribute with the full class name of ShareActionProvider.
-->
<item
android:id="@+id/menu_share"
android:title="@string/menu_share"
support:actionProviderClass="android.support.v7.widget.ShareActionProvider"
support:showAsAction="always" />
Stack Overflow用户
发布于 2018-08-22 21:05:01
请执行以下步骤：
步骤1)要在活动中添加“共享”操作，请在应用程序栏的菜单资源中放置一个ShareActionProvider。像这样
<item android:id="@+id/action_share"
android:title="@string/share"
app:showAsAction="ifRoom"
app:actionProviderClass="android.support.v7.widget.ShareActionProvider"/>请注意actionProviderClass
步骤2)现在，您要确保在活动Java Class中导入相同的ShareActionProvider
import android.support.v7.widget.ShareActionProvider;步骤3)
下面是onCreate方法的部分
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main_activity_bar, menu);
ShareActionProvider shareActionProvider = (ShareActionProvider) MenuItemCompat.getActionProvider(menu.findItem(R.id.actionbar_share));
shareActionProvider.setShareIntent(shareIt());意图方法
private Intent shareIt() {
Intent intent= new Intent(Intent.ACTION_SEND);
intent.setType("text/plain");
String shareMsgBody = "Hello, Share this with world !!";
intent.putExtra(Intent.EXTRA_TEXT, shareAndPromotionBody);
startActivity(Intent.createChooser(intent, "Spread the message!!"));
return intent;
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/27887716
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