如何使用“ setImageURI”功能将图像从数据库加载到android ImageView中？

Question

I have to set image in Image view. I used Glide library to set image in recycler view, now when I click to recycler view item I want to set it into another activity.

I just take image url through intent and store it as a string variable.

final String image = intent.getStringExtra("Image");

Then I tried to set image using the following line of code.

displayImage.setImageURI(Uri.parse(image)); 

Note: displayImage is my targeted imageview.

And I could get the correct url here.

Answer 1

You can not display image from URL using setImageURI();

You need to pass url to your activity than display it using Glide

Use this

RequestOptions requestOptions = new RequestOptions();
requestOptions.placeholder(R.drawable.ic_placeholder);
requestOptions.error(R.drawable.ic_error);

Glide.with(this)
     .load(image)
     .apply(requestOptions)
     .into(displayImage);

Instead of this

displayImage.setImageURI(Uri.parse(image)); 

Answer 2

Well when you have already set image once in RecyclerView why not use Bitmap from that ImageView . This will save network data and time.

BitmapDrawable bitmapDrawable = (BitmapDrawable) imageView.getDrawable();
Bitmap bitmap = bitmapDrawable.getBitmap();
ByteArrayOutputStream bs = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bs);
intent.putExtra("byteArray", bs.toByteArray()); 
startActivity(intent);

Then in target activity

if (getIntent().hasExtra("byteArray")) {
            Bitmap bitmap =
                    BitmapFactory.decodeByteArray(getIntent().getByteArrayExtra("byteArray"), 0, getIntent().getByteArrayExtra("byteArray").length);
            imageView.setImageBitmap(bitmap);
        }