问如何在android中从图库上传图片

EN

startActivityForResult(new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI), GET_FROM_GALLERY);

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);


    //Detects request codes
    if(requestCode==GET_FROM_GALLERY && resultCode == Activity.RESULT_OK) {
        Uri selectedImage = data.getData();
        Bitmap bitmap = null;
        try {
                bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), selectedImage);
        } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
        } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
        }
    }
}

Intent intent = new Intent();
  intent.setType("image/*");
  intent.setAction(Intent.ACTION_GET_CONTENT);
  startActivityForResult(Intent.createChooser(intent, "Select Picture"),REQUEST_CODE);

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
  super.onActivityResult(requestCode, resultCode, data);
  try {
   switch (requestCode) {

   case REQUEST_CODE:
    if (resultCode == Activity.RESULT_OK) {
     //data gives you the image uri. Try to convert that to bitmap
     break;
    } else if (resultCode == Activity.RESULT_CANCELED) {
     Log.e(TAG, "Selecting picture cancelled");
    }
    break;
   }
  } catch (Exception e) {
   Log.e(TAG, "Exception in onActivityResult : " + e.getMessage());
  }
 }

startActivityForResult(
  new Intent(
    Intent.ACTION_PICK,
    android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI
  ),
  GET_FROM_GALLERY
);