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public class SmartImageView extends ImageView {    public SmartImageView(Context context)    {        super(context);    }    public SmartImageView(Context context, AttributeSet attrs)    {        super(context, attrs);    }    public SmartImageView(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 {                float imageRatio = (float)drawable.getIntrinsicWidth() / drawable.getIntrinsicHeight();                float viewRatio = (float)MeasureSpec.getSize(widthMeasureSpec) / MeasureSpec.getSize(heightMeasureSpec);                // Image is wider than the display (ratio)                if (imageRatio >= viewRatio) {                    int width = MeasureSpec.getSize(widthMeasureSpec);                    int height = (int) (width / imageRatio);                    setMeasuredDimension(width, height);                }                // Image is taller than the display (ratio)                else {                    int height = MeasureSpec.getSize(heightMeasureSpec);                    int width = (int)(height * imageRatio);                    setMeasuredDimension(width, height);                }            }        } catch (Exception e) {            super.onMeasure(widthMeasureSpec, heightMeasureSpec);        }    }}

 

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