Android 获取图片固定大小的缩略图

核心提示：position = position + mImageDirs.size();}// 获取这个图片的宽和高Bitmap bm = BitmapFactory.decodeFile(this.mImageDirs.get(position % mImageDirs.size()), options); //此时返回bm

position = position + mImageDirs.size();

}

// 获取这个图片的宽和高

Bitmap bm = BitmapFactory.decodeFile(this.mImageDirs

.get(position % mImageDirs.size()), options); //此时返回bm为空

options.inJustDecodeBounds = false;

int be = options.outHeight / 20;

if(be%10 !=0)

be+=10;

be=be/10;

if (be <= 0)

be = 1;

options.inSampleSize = be;

bm = BitmapFactory.decodeFile(this.mImageDirs.get(position

% mImageDirs.size()), options);

int w = bm.getWidth();

int h = bm.getHeight();

w = w *200 /h;

i.setImageBitmap(bm);