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MainActivity如下:

package cc.testsimpleactionbar6;import android.os.Bundle;import android.app.Activity;import android.content.Intent;import android.view.Menu;import android.view.MenuItem;import android.widget.ShareActionProvider;/** * Demo描述: * ActionProvider使用示例 * 在此以ShareActionProvider为例 *  * 备注说明: * 在menu的xml文件中需要设置属性: * android:actionProviderClass="android.widget.ShareActionProvider" *  * 参考资料: * 1 http://docs.eoeandroid.com/training/sharing/shareaction.html * 2 http://blog.csdn.net/eclipsexys/article/details/8688538 * 3 http://blog.csdn.net/think_soft/article/details/7370686 *   Thank you very much *    */public class MainActivity extends Activity {    private ShareActionProvider  mShareActionProvider;	@Override	protected void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		setContentView(R.layout.main);	}	@Override	public boolean onCreateOptionsMenu(Menu menu) {		getMenuInflater().inflate(R.menu.share_menu, menu);		MenuItem menuItem = menu.findItem(R.id.share_item);		mShareActionProvider = (ShareActionProvider) menuItem.getActionProvider();		Intent shareIntent=getShareIntent();		mShareActionProvider.setShareIntent(shareIntent);		return true;	}		public Intent getShareIntent() {		Intent intent = new Intent(Intent.ACTION_SEND);		intent.putExtra(Intent.EXTRA_TEXT, "这里是要分享的文字");		intent.setType("text/plain");		Intent.createChooser(intent, "Share");		return intent;	}}

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