操作栏按钮只显示在溢出（不延长ActionBarActivity）

问题描述

我只能找到解决方案，本作使用的支持库的情况。事实：

I can only find solutions to this for the case of using the support library.Facts:

1. build.gradle：

1. build.gradle:

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:design:22.2.0'
}

menu_main.xml：

menu_main.xml:

<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
tools:context=".MainActivity">

<item
    android:id="@+id/ab_main_share"
    android:showAsAction="ifRoom|withText"
    android:title="Share"
    android:icon="@drawable/ic_settings_input_antenna_black_24dp"
    android:actionProviderClass=
        "android.widget.ShareActionProvider" />

<item
    android:id="@+id/ab_main_delete"
    android:showAsAction="ifRoom|withText"
    android:title="Delete"
    android:icon="@drawable/ic_delete_black_24dp" />

<item android:id="@+id/action_settings"    android:title="@string/action_settings"
    android:orderInCategory="100" app:showAsAction="never" />

</menu>

MainActivity.java：

MainActivity.java:

public class MainActivity extends Activity {

private ShareActionProvider mShareActionProvider;

...

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate menu resource file.
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.menu_main, menu);

    /** Getting the actionprovider associated with the menu item whose id is share */
    mShareActionProvider = (ShareActionProvider) menu.findItem(R.id.ab_main_share).getActionProvider();

    /** Setting a share intent */
    mShareActionProvider.setShareIntent(getDefaultShareIntent());

    return super.onCreateOptionsMenu(menu);
}

和的结果是，操作中出现溢出。我也尝试把只有一个动作，但我得到了相同的结果。因此，这不是没有房在操作栏上的问题（应用程序或应用程序图标的名称不是那么宽）。

And the result is that the actions appear in the overflow. I tried also to put just one action, but I get the same result. So it's not a problem of not having room in the action bar (and the name of the app or the application icon is not so wide).

我缺少的东西？我做这些事情之前，支持库，没有问题，但这个程序是的minSdkVersion 17，所以没有理由去使用它了。

Am I missing something? I did these thing before with the support library and had no problems, but this app is minSdkVersion 17, so there's no reason to use it anymore.

推荐答案

找到了！问题是在清单中。笔者在活动的声明是这样：

Found it! The problem was in the Manifest. I had this in the activity declaration:

android:theme="@android:style/Theme.Holo.Light.Dialog"

删除它，现在我可以看到操作按钮的操作栏。

Removed it and now I can see the action buttons in the action bar.

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