Question

Whenever I turn the device sideways, everything in my app also turns and becomes distorted. How do I lock it into vertical?

Answer 1

In your AndroidManifest.xml set the orientation on your Activity to portrait like this.

<activity android:name=".YourActivity"
    android:label="@string/app_name"
    android:screenOrientation="portrait">
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</activity>