1 /*
2  * Copyright (C) 2018 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.biometrics.face;
18 
19 import android.content.Context;
20 import android.util.AttributeSet;
21 import android.widget.FrameLayout;
22 
23 /**
24  * Square layout that sets the height to be the same as width.
25  */
26 public class FaceSquareFrameLayout extends FrameLayout {
27 
FaceSquareFrameLayout(Context context)28     public FaceSquareFrameLayout(Context context) {
29         super(context);
30     }
31 
FaceSquareFrameLayout(Context context, AttributeSet attrs)32     public FaceSquareFrameLayout(Context context, AttributeSet attrs) {
33         super(context, attrs);
34     }
35 
FaceSquareFrameLayout(Context context, AttributeSet attrs, int defStyleAttr)36     public FaceSquareFrameLayout(Context context, AttributeSet attrs, int defStyleAttr) {
37         super(context, attrs, defStyleAttr);
38     }
39 
FaceSquareFrameLayout(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)40     public FaceSquareFrameLayout(Context context, AttributeSet attrs, int defStyleAttr,
41             int defStyleRes) {
42         super(context, attrs, defStyleAttr, defStyleRes);
43     }
44 
45     @Override
onMeasure(int widthMeasureSpec, int heightMeasureSpec)46     public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
47         // Don't call super, manually set their size below
48         int size = MeasureSpec.getSize(widthMeasureSpec);
49 
50         // Set this frame layout to be a square
51         setMeasuredDimension(size, size);
52 
53         // Set the children to be the same size (square) as well
54         final int numChildren = getChildCount();
55         for (int i = 0; i < numChildren; i++) {
56             int spec = MeasureSpec.makeMeasureSpec(size, MeasureSpec.EXACTLY);
57             this.getChildAt(i).measure(spec, spec);
58         }
59     }
60 }
61