hello 延安!

CustomerImgView.java

package com.sadieyu.fragmenttest;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.ImageView;

/**
 * Created by sadieyu
 * Date: 15-8-18.
 * Time: 下午7:25
 */
public class CustomerImgView extends ImageView {

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

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

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

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        try {
            Drawable drawable = getDrawable();
            if (drawable == null) {
                setMeasuredDimension(0, 0);
            } else {
                int measuredWidth = MeasureSpec.getSize(widthMeasureSpec);
                int measuredHeight = MeasureSpec.getSize(heightMeasureSpec);
                if (measuredHeight == 0 && measuredWidth == 0) {
                    setMeasuredDimension(measuredWidth, measuredHeight);
                } else if (measuredHeight == 0) {
                    int height = measuredWidth *  drawable.getIntrinsicHeight() / drawable.getIntrinsicWidth();
                    setMeasuredDimension(measuredWidth, height);
                } else if (measuredWidth == 0){
                    int width = measuredHeight * drawable.getIntrinsicWidth() / drawable.getIntrinsicHeight();
                    setMeasuredDimension(width, measuredHeight);
                } else {
                    setMeasuredDimension(measuredWidth, measuredHeight);
                }
            }
        } catch (Exception e) {
            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        }
    }

}