android doc中是这样描述的：public void setImageResource (int resId)这是其中的一个方法，参数resld是这样：ImageView.setImageResource(R.drawable.icon); 看下面这段话Sets a drawable as the content of this ImageView.This does Bitmap reading and decoding on the UI thread, which can cause a latency hiccup. If that‘s a concern, consider usingsetImageDrawable(Drawable) or setImageBitmap(Bitmap) and BitmapFactory instead. 此函数使用UI线程，可以用下面3种替代：ImageView iv; String fileName = "/data/data/com.test/aa.png; Bitmap bm = BitmapFactory.decodeFile(fileName); iv.setImageBitmap(bm); ImageView iv = new ImageView(context); iv.setImageResource(iv[position]); iv.setScaleType(ImageView.ScaleType.FIT_XY); iv.setLayoutParams(new Gallery.LayoutParams(136,88)); mImageView = (ImageView)this.findViewById(R.id.myImageView1); mImageView.setImageDrawable(getResources().getDrawable(R.drawable.right)
ImageView 设置图片来自：http://blog.csdn.net/lincyang/article/details/6562163
原文地址：http://www.cnblogs.com/gisoracle/p/7628992.html