src/com/android/settings/biometrics/face/FaceSquareTextureView.java

/*
 * Copyright (C) 2018 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 com.android.settings.biometrics.face;

import android.content.Context;
import android.util.AttributeSet;
import android.view.TextureView;

/**
 * A square {@link TextureView}.
 */
public class FaceSquareTextureView extends TextureView {

    public FaceSquareTextureView(Context context) {
        this(context, null);
    }

    public FaceSquareTextureView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

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

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        int width = MeasureSpec.getSize(widthMeasureSpec);
        int height = MeasureSpec.getSize(heightMeasureSpec);

        if (width < height) {
            setMeasuredDimension(width, width);
        } else {
            setMeasuredDimension(height, height);
        }
    }
}