Android应用程序始终保持在横向

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.app">

    <application
        android:name=".MyApplication"
        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"
            android:configChanges="orientation|screenSize|keyboardHidden|keyboard|screenLayout|uiMode|navigation|orientation"
            android:launchMode="singleTask"
            android:taskAffinity=""
            android:allowTaskReparenting="true"
            android:windowSoftInputMode="adjustResize"
            android:exported="true">

            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>