从“最近图像”文件夹中选择图像时，图片路径为空

Question

我正在为我的应用程序上传图像，这里当我从我的图库中选择一个图像时工作正常，现在如果我从“最近”文件夹中选择相同的图像，图片路径为空，我无法上传图片。你能帮我解决这个问题吗？

这是我的代码供您参考：

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // find the views
    image = (ImageView) findViewById(R.id.uploadImage);
    uploadButton = (Button) findViewById(R.id.uploadButton);
    takeImageButton = (Button) findViewById(R.id.takeImageButton);
    selectImageButton = (Button) findViewById(R.id.selectImageButton);

    selectImageButton.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            selectImageFromGallery();

        }
    });

    takeImageButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub

            Intent cameraIntent = new Intent(
                    android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
            startActivityForResult(cameraIntent, CAMERA_REQUEST);

            /*
             * Picasso.with(MainActivity.this) .load(link) .into(image);
             */

        }
    });

    // when uploadButton is clicked
    uploadButton.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // new ImageUploadTask().execute();
            Toast.makeText(MainActivity.this, "clicked", Toast.LENGTH_SHORT)
                    .show();
            uploadTask();
        }
    });
}

protected void uploadTask() {
    // TODO Auto-generated method stub
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    bitmap.compress(CompressFormat.JPEG, 100, bos);
    byte[] data = bos.toByteArray();
    String file = Base64.encodeToString(data, 0);
    Log.i("base64 string", "base64 string: " + file);
    new ImageUploadTask(file).execute();
}

/**
 * Opens dialog picker, so the user can select image from the gallery. The
 * result is returned in the method <code>onActivityResult()</code>
 */
public void selectImageFromGallery() {
    Intent intent = new Intent();
    intent.setType("image/*");
    intent.setAction(Intent.ACTION_GET_CONTENT);
    startActivityForResult(Intent.createChooser(intent, "Select Picture"),
            PICK_IMAGE);
}

/**
 * Retrives the result returned from selecting image, by invoking the method
 * <code>selectImageFromGallery()</code>
 */
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == PICK_IMAGE && resultCode == RESULT_OK
            && null != data) {

        Uri selectedImage = data.getData();
        Log.i("selectedImage", "selectedImage: " + selectedImage.toString());
        String[] filePathColumn = { MediaStore.Images.Media.DATA };

        Cursor cursor = getContentResolver().query(selectedImage,
                filePathColumn, null, null, null);

        /*
         * Cursor cursor = managedQuery(selectedImage, filePathColumn, null,
         * null, null);
         */

        cursor.moveToFirst();

        // int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
        int columnIndex = cursor
                .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        String picturePath = cursor.getString(columnIndex);
        Log.i("picturePath", "picturePath: " + picturePath);
        cursor.close();

        decodeFile(picturePath);

    }

}


public void decodeFile(String filePath) {
    // Decode image size
    BitmapFactory.Options o = new BitmapFactory.Options();
    o.inJustDecodeBounds = true;
    BitmapFactory.decodeFile(filePath, o);

    // The new size we want to scale to
    final int REQUIRED_SIZE = 1024;

    // Find the correct scale value. It should be the power of 2.
    int width_tmp = o.outWidth, height_tmp = o.outHeight;
    int scale = 1;
    while (true) {
        if (width_tmp < REQUIRED_SIZE && height_tmp < REQUIRED_SIZE)
            break;
        width_tmp /= 2;
        height_tmp /= 2;
        scale *= 2;
    }

    // Decode with inSampleSize
    BitmapFactory.Options o2 = new BitmapFactory.Options();
    o2.inSampleSize = scale;
    bitmap = BitmapFactory.decodeFile(filePath, o2);

    image.setImageBitmap(bitmap);
}

这是我的log供您参考：

Answer 1

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