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