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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko.util;
import android.content.res.TypedArray;
import android.view.View;
import org.mozilla.gecko.AppConstants;
import org.mozilla.gecko.R;
public class ViewUtil {
/**
* Enable a circular touch ripple for a given view. This is intended for borderless views,
* such as (3-dot) menu buttons.
*
* Because of platform limitations a square ripple is used on Android 4.
*/
public static void enableTouchRipple(View view) {
final TypedArray backgroundDrawableArray;
if (AppConstants.Versions.feature21Plus) {
backgroundDrawableArray = view.getContext().obtainStyledAttributes(new int[] { R.attr.selectableItemBackgroundBorderless });
} else {
backgroundDrawableArray = view.getContext().obtainStyledAttributes(new int[] { R.attr.selectableItemBackground });
}
// This call is deprecated, but the replacement setBackground(Drawable) isn't available
// until API 16.
view.setBackgroundDrawable(backgroundDrawableArray.getDrawable(0));
}
}
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