For portrait mode.

Author: danopdev

app/src/main/AndroidManifest.xml

@@ -12,7 +12,8 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.VideoStab">
-        <activity android:name=".MainActivity">
+        <activity android:name=".MainActivity"
+            android:screenOrientation="portrait">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />