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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.settings.widget;
     18 
     19 import android.animation.AnimatorInflater;
     20 import android.content.Context;
     21 import android.graphics.Outline;
     22 import android.util.AttributeSet;
     23 import android.view.View;
     24 import android.view.ViewOutlineProvider;
     25 import android.widget.ImageView;
     26 
     27 import com.android.settings.R;
     28 
     29 public class FloatingActionButton extends ImageView {
     30 
     31     public FloatingActionButton(Context context, AttributeSet attrs) {
     32         super(context, attrs);
     33         setScaleType(ScaleType.CENTER);
     34         setStateListAnimator(AnimatorInflater.loadStateListAnimator(context, R.anim.fab_elevation));
     35         setOutlineProvider(new ViewOutlineProvider() {
     36             @Override
     37             public void getOutline(View view, Outline outline) {
     38                 outline.setOval(0, 0, getWidth(), getHeight());
     39             }
     40         });
     41         setClipToOutline(true);
     42     }
     43 
     44     @Override
     45     protected void onSizeChanged(int w, int h, int oldw, int oldh) {
     46         super.onSizeChanged(w, h, oldw, oldh);
     47         invalidateOutline();
     48     }
     49 }
     50