Android项目开发常用工具类SquareImageView

• 本文原创作者：谷哥的小弟
• 作者博客地址：http://blog.csdn.net/lfdfhl

SquareImageView为正方形的ImageView。

SquareImageView截图如下：

SquareImageView源码如下：

import android.content.Context;
import android.util.AttributeSet;
import androidx.appcompat.widget.AppCompatImageView;


public final class SquareImageView extends AppCompatImageView {


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

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

    public SquareImageView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int width = MeasureSpec.getMode(widthMeasureSpec) == MeasureSpec.EXACTLY ? MeasureSpec.getSize(widthMeasureSpec) : 0;
        int height = MeasureSpec.getMode(heightMeasureSpec) == MeasureSpec.EXACTLY ? MeasureSpec.getSize(heightMeasureSpec) : 0;
        int spec = Math.max(width, height);
        setMeasuredDimension(spec, spec);
    }
}