Java – Android SwitchCompat thumb misalignment

I

want to use SwitchCompat in Android Studio, I put it in build.gradle:

compile 'com.android.support:appcompat-v7:21.+'

But the thumb is not centered with the slider.

Here is my xml:

<android.support.v7.widget.SwitchCompat
    android:id="@+id/allarme"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginBottom="5dp"
    android:layout_gravity="right" />

Can you help me?

I finally found the problem: there is a bug in AppCompat (currently v21.0.3) affecting HDPI devices.
More information: https://code.google.com/p/android/issues/detail?id=78262

Workaround:
Copy this file into your app’s res/drawable-hdpi: https://www.mediafire.com/?6c7537yi73m1e6m