templates/CardStream/_MODULE_/src/template/java/_PACKAGE_/CardActionButton.java.ftl

<#ftl>
<#--
        Copyright 2013 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 ${sample.package};

import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.animation.BounceInterpolator;
import android.view.animation.DecelerateInterpolator;
import android.widget.Button;

/**
 * Custom Button with a special 'pressed' effect for touch events.
 */
public class CardActionButton extends Button {

    public CardActionButton(Context context) {
        super(context);
    }

    public CardActionButton(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CardActionButton(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {

        switch(event.getAction()){
            case MotionEvent.ACTION_DOWN:
                setPressed(true);
                animate().scaleX(0.98f).scaleY(0.98f).alpha(0.8f).setDuration(100).
                        setInterpolator(new DecelerateInterpolator());
                break;
            case MotionEvent.ACTION_UP:
                animate().scaleX(1.0f).scaleY(1.f).alpha(1.0f).setDuration(50).
                        setInterpolator(new BounceInterpolator());
                break;
            case MotionEvent.ACTION_CANCEL:
                animate().scaleX(1.0f).scaleY(1.f).alpha(1.0f).setDuration(50).
                        setInterpolator(new BounceInterpolator());
                break;
        }

        return super.onTouchEvent(event);
    }

}