try {
    URL url = new URL("http://h.hiphotos.baidu.com/image/pic/item/b21c8701a18b87d6b025e513040828381f30fd53.jpg");
    HttpURLConnection connection = (HttpURLConnection)url.openConnection();
    InputStream in = connection.getInputStream();
    ByteArrayOutputStream content = new ByteArrayOutputStream();
    byte[] buffer = new byte[10 * 1024];
    int count;
    while((count = in.read(buffer)) > 0){
        content.write(buffer, 0, count);
    }
    byte[] data = content.toByteArray();
    BitmapFactory.Options options1 = new BitmapFactory.Options();
    options1.inPreferredConfig = Bitmap.Config.ARGB_8888;
    Bitmap bitmap1 = BitmapFactory.decodeByteArray(data, 0 , data.length, options1);
    //System.out.println("bitmap ARGB_8888 length " + bitmap1.getByteCount());
    System.out.println("bitmap ARGB_8888 length " + bitmap1.getRowBytes() * bitmap1.getHeight());
    BitmapFactory.Options options2 = new BitmapFactory.Options();
    options2.inPreferredConfig = Bitmap.Config.RGB_565;
    Bitmap bitmap2 = BitmapFactory.decodeByteArray(data, 0 , data.length, options2);
    //System.out.println("bitmap RGB_565 length " + bitmap2.getByteCount());
    System.out.println("bitmap RGB_565 length " + bitmap2.getRowBytes() * bitmap2.getHeight());
    BitmapFactory.Options options3 = new BitmapFactory.Options();
    options3.inPreferredConfig = Bitmap.Config.ALPHA_8;
    Bitmap bitmap3 = BitmapFactory.decodeByteArray(data, 0 , data.length, options3);
    //System.out.println("bitmap ALPHA_8 length " + bitmap3.getByteCount());
    System.out.println("bitmap ALPHA_8 length " + bitmap3.getRowBytes() * bitmap3.getHeight());
    BitmapFactory.Options options4 = new BitmapFactory.Options();
    options4.inPreferredConfig = Bitmap.Config.ARGB_4444;
    Bitmap bitmap4 = BitmapFactory.decodeByteArray(data, 0 , data.length, options4);
    //System.out.println("bitmap ARGB_4444 length " + bitmap4.getByteCount());
    System.out.println("bitmap ARGB_4444 length " + bitmap4.getRowBytes() * bitmap4.getHeight());
} catch (Exception e) {
    e.printStackTrace();
}
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/** Each pixel is stored on 2 bytes. The three RGB color channels and the 
alpha channel (translucency) are stored with a 4 bits precision (16 possible 
values.) This configuration is mostly useful if the application needs to store 
translucency information but also needs to save memory. It is recommended to 
use ARGB_8888 instead of this configuration. Note: as of 
Build.VERSION_CODES.KITKAT, any bitmap created with this configuration will be 
created using ARGB_8888 instead.
Deprecated
Because of the poor quality of this configuration, it is advised to use 
ARGB_8888 instead. **/
@Deprecated
ARGB_4444   (4),
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/* If this is non-null, the decoder will try to decode into this internal
configuration. If it is null, or the request cannot be met, the decoder will 
try to pick the best matching config based on the system's screen depth, and 
characteristics of the original image such as if it has per-pixel alpha 
(requiring a config that also does). Image are loaded with the 
Bitmap.Config.ARGB_8888 config by default. */
public Bitmap.Config inPreferredConfig = Bitmap.Config.ARGB_8888;
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