我从所有活动中删除了操作栏然后我将一个操作栏放在特定活动中,当我使用 SupportsRtl(在特定活动中)更改标题位置但标题位置仍然没有改变
样式:
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
<style name="myTheme" parent="Theme.AppCompat.Light">
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="android:textColorPrimary">#FFFFFF</item>
</style>
</resources>
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显现 :
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.user.classmanager">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".FirstTab" />
<activity android:name=".SecondTab" />
<activity android:name=".ThirdTab" />
<activity android:name=".AddNewClass"
android:theme = "@style/myTheme"
android:supportsRtl="true" <==== DONT WORK
android:label="????? …Run Code Online (Sandbox Code Playgroud)