java.lang.IllegalStateException setSupportActionBar

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代码

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protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_player);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

异常信息

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Caused by: java.lang.IllegalStateException: This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead.
     at android.support.v7.app.AppCompatDelegateImplV9.setSupportActionBar(AppCompatDelegateImplV9.java:204)
     at android.support.v7.app.AppCompatActivity.setSupportActionBar(AppCompatActivity.java:129)
     at work.wangxiang.lansodemo.PlayerActivity.onCreate(PlayerActivity.java:20)
     at android.app.Activity.performCreate(Activity.java:6288)
     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1113)

清单文件

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<activity
    android:name=".PlayerActivity"
    android:label="@string/title_activity_player"
    android:theme="@style/AppTheme">
</activity>

样式代码 @style/AppTheme

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<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
</style>

解决方法，修改成下面的样式

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<style name="AppTheme.NoActionBar" parent="Theme.AppCompat">
    <item name="windowActionBar">false</item>
    <item name="windowNoTitle">true</item>
</style>