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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.contacts.widget;
import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
/**
* A FrameLayout whose contents are kept beneath an {@link AlphaTouchInterceptorOverlay}.
* If necessary, you can specify your own alpha-layer and manually manage its z-order.
*/
public class FrameLayoutWithOverlay extends FrameLayout {
private final AlphaTouchInterceptorOverlay mOverlay;
public FrameLayoutWithOverlay(Context context, AttributeSet attrs) {
super(context, attrs);
// Programmatically create touch-interceptor View.
mOverlay = new AlphaTouchInterceptorOverlay(context);
addView(mOverlay);
}
/** After adding the View, bring the overlay to the front to ensure it's always on top. */
@Override
public void addView(View child, int index, ViewGroup.LayoutParams params) {
super.addView(child, index, params);
mOverlay.bringToFront();
}
/**
* Delegate to overlay: set the View that it will use as its alpha-layer.
* If none is set, the overlay will use its own alpha layer. Only
* necessary to set this if some child views need to appear above the
* alpha-layer.
*/
protected void setAlphaLayer(View layer) {
mOverlay.setAlphaLayer(layer);
}
/** Delegate to overlay: set the alpha value on the alpha layer. */
public void setAlphaLayerValue(float alpha) {
mOverlay.setAlphaLayerValue(alpha);
}
/** Delegate to overlay. */
public void setOverlayOnClickListener(OnClickListener listener) {
mOverlay.setOverlayOnClickListener(listener);
}
/** Delegate to overlay. */
public void setOverlayClickable(boolean clickable) {
mOverlay.setOverlayClickable(clickable);
}
}
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