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 
FloatingActionButton(Context context, AttributeSet attrs)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
onSizeChanged(int w, int h, int oldw, int oldh)45     protected void onSizeChanged(int w, int h, int oldw, int oldh) {
46         super.onSizeChanged(w, h, oldw, oldh);
47         invalidateOutline();
48     }
49 }
50