如何从片段类中的 URL 加载图像？

Question

I want to load an image from its URL in Fragment class. I'm loading the image like this:

try {
 // ImageView j=(ImageView)rootView.findViewById(R.id.image_frm);
  Bitmap bitmap = BitmapFactory.decodeStream((InputStream)new URL(image_url).getContent());
  Bitmap resized = Bitmap.createScaledBitmap(bitmap, 600, 600, true);
  Bitmap conv_bm = getRoundedRectBitmap(resized, 255);
  i.setImageBitmap(conv_bm); 
 // j.setImageBitmap(bitmap);
} catch (MalformedURLException e) {
  e.printStackTrace();
} catch (IOException e) {
  e.printStackTrace();
}

but this method is taking more time to load the image and to open it. If I want to use ImageLoader class like this tutorial , then how to load it in Fragment?

Answer 1

为什么不使用Picasso或Universal image loader 。

Answer 2

use any 3rd party libabry like picasso,

https://github.com/square/picasso

download the jar file and put the jar file inside your libs folder,

for more info see, http://square.github.io/picasso/

in case of fragments, use getActivity() instead of context.

For rounded imageview,i use this https://github.com/vinc3m1/RoundedImageView