android download the image from url store in internal memory then display that image in imageview

Question

I want to download the image from url and store it to internal memory after storing get the image stored in internal memory and display it in imageview

Answer 1

You can use this code to download the image

  URL url = new URL(<your url>);
  InputStream in = new BufferedInputStream(url.openStream());
  ByteArrayOutputStream out = new ByteArrayOutputStream();
  byte[] buf = new byte[1024];
  int n = in.read(buf);
 while (n!=-1)
 {
  out.write(buf, 0, n);
   n=in.read(buf)
  }
 out.close();
 in.close();
 byte[] response = out.toByteArray();

And below code to save it to internal storage

  FileOutputStream fos = new FileOutputStream(filePath);
  fos.write(response);
  fos.close();

where file path for internal storage is

  String filePath=getFilesDir().getPath() + File.separator + "image_" + <some unique identifier like int or string that is different for different images>

ANd to show in imageView use

  File imgFile = new  File(filePath);

if(imgFile.exists()){

Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());

ImageView myImage = (ImageView) findViewById(R.id.imageviewTest);

myImage.setImageBitmap(myBitmap);

 }

Hope it helps.