1 int width = ScreenUtils.getScreenWidth(this);2 int height = ScreenUtils.getScreenHeight(this);3 mImageView = new ImageView(this);4 mImageView.setScaleType(ImageView.ScaleType.FIT_XY);5 mImageView.setLayoutParams(new Gallery.LayoutParams(width, height));// 设置Gallery组件的背景风格

1 ViewGroup.LayoutParams params = mImageView.getLayoutParams();2 //设置图片的相对于屏幕的宽高比3 params.width = width;4 params.height = height;5 mImageView.setLayoutParams(params);