Protect animation methods from Proguard.

  public void recentButtonClicked(android.view.View);

  public void toggleLightsOut(android.view.View);

}

-keep class com.android.systemui.statusbar.policy.KeyButtonView {

  public float getDrawingAlpha();

  public float getGlowAlpha();

  public float getGlowScale();

  public void setDrawingAlpha(float);

  public void setGlowAlpha(float);

  public void setGlowScale(float);

}