android - android :supportsRtl ="true" in AndroidManifest xml file有什么用

Question

每当我在 android studio 中创建新项目时，我都会在我的应用 AndroidManifest 文件中获得 android:supportsRtl="true"。

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
...
</application>

在应用中使用什么，或者在我的应用中添加或不添加 AndroidManifest 时有什么优点和缺点。

Answer 1

Declares whether your application is willing to support right-to-left (RTL) layouts. If set to true and targetSdkVersion is set to 17 or higher, various RTL APIs will be activated and used by the system so your app can display RTL layouts. If set to false or if targetSdkVersion is set to 16 or lower, the RTL APIs will be ignored or will have no effect and your app will behave the same regardless of the layout direction associated to the user's Locale choice (your layouts will always be left-to-right).

The default value of this attribute is false.

This attribute was added in API level 17.

(来源:http://developer.android.com/guide/topics/manifest/application-element.html)