setImageResource和setImageDrawable和setImageBitMap区别
(1)setImageResource的参数是resId,必须是drawable目录下的资源.另外,在setImageResource方法中有写明了注释*ThisdoesBitmapreadinganddecodingontheUI*thread,whichcancausealatencyhiccup.Ifthat'saconcern,*considerusing{@link#setImageDr