Question

我正在尝试将图库中的图像显示为SimpleDraweeView。我不知道这是否是这样做的方法，但我正在做的是进入图库，选择图像并获取图像路径。之后我使用galleryImage.setImageURI(Uri.parse(url));将图像设置为SimpleDraweeView（这是galleryImage的类型）。不幸的是，我得到Bitmap too large to be uploaded into a texture (4128x2322, max=4096x4096)。

这是我打开图库并返回imagePath的代码。

public void loadImagefromGallery(View view) {
        // Create intent to Open Image applications like Gallery, Google Photos
        Intent galleryIntent = new Intent(Intent.ACTION_PICK,
                android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
        // Start the Intent
        startActivityForResult(galleryIntent, RESULT_LOAD_IMG);
    }

    // When Image is selected from Gallery
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        try {
            // When an Image is picked
            if (requestCode == RESULT_LOAD_IMG && resultCode == RESULT_OK
                    && null != data) {
                // Get the Image from data

                Uri selectedImage = data.getData();
                String[] filePathColumn = {MediaStore.Images.Media.DATA};

                // Get the cursor
                Cursor cursor = getContentResolver().query(selectedImage,
                        filePathColumn, null, null, null);
                // Move to first row
                cursor.moveToFirst();

                int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
                imgPath = cursor.getString(columnIndex);
                cursor.close();
                Toast.makeText(this, imgPath,
                        Toast.LENGTH_LONG).show();
                String url = "file://" + imgPath;

                galleryImage.setImageURI(Uri.parse(url));
            } else {
                Toast.makeText(this, "You haven't picked Image",
                        Toast.LENGTH_LONG).show();
            }
        } catch (Exception e) {
            Toast.makeText(this, "Something went wrong", Toast.LENGTH_LONG)
                    .show();
        }

    }

编辑：

ImageRequestBuilder imageRequestBuilder = ImageRequestBuilder.newBuilderWithSource(Uri.parse(url))
                    .setAutoRotateEnabled(true)
                    .setResizeOptions(new ResizeOptions(galleryImage.getLayoutParams().width, galleryImage.getLayoutParams().height));

            DraweeController controller = Fresco.newDraweeControllerBuilder()
                    .setImageRequest(imageRequestBuilder.build())
                    .setOldController(galleryImage.getController())
                    .build();

            galleryImage.setController(controller);

Answer 1

ImagePipelineConfig frescoConfig = ImagePipelineConfig.newBuilder(getApplicationContext()) .setDownsampleEnabled(true).build();
Fresco.initialize(this, frescoConfig);

这对我有用。

Answer 2

您需要使用ImageRequestBuilder和Drawee Controller来设置调整大小选项，以便在放入纹理之前调整太大（宽度或高度超过2048）的图像的大小。像这样：

ImageRequestBuilder imageRequestBuilder = ImageRequestBuilder.newBuilderWithSource(Uri.parse(uri))
            .setAutoRotateEnabled(true)
            .setResizeOptions(new ResizeOptions(getLayoutParams().width, getLayoutParams().height));

    DraweeController controller = Fresco.newDraweeControllerBuilder()
            .setImageRequest(imageRequestBuilder.build())
            .setOldController(getController())
            .build();

    setController(controller);

Fresco - 位图太大而无法上传到纹理中

2 个答案: