Question

大家好，

我正试图从Dropbox“Camera upload”文件夹中获取图像并将该图像设置为android中的图像视图但应用程序强制突然关闭，我能够从SD卡和相机获取图像并能够将图像设置为ImageView ，但我的下一个需要是从Dropbox获取图像并将其设置为ImageView，但它不适合我，如果有人知道如何解决这个问题，那么请帮我解决这个问题。

我的代码如下：

我添加了微调器来从图库，相机和保管箱中选择图像，我可以从图库和相机中获取图像，但不能从保管箱中获取图像，请帮助解决此问题：

Error showing as fatal exception 
Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent
 { dat=file:///mnt/sdcard/Android/data/com.dropbox.android/files/scratch/Camera Uploads/2013-11-11 09.42.20.jpg typ=image/jpeg }} to activity {com.capstone.classitweetsdemo/com.capstone.classitweetsdemo.MainActivity}: java.lang.NullPointerException

提前致谢。

spnImage.setOnItemSelectedListener(new OnItemSelectedListener() {

    @Override
    public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {

        if (spnImage.getSelectedItem().toString().equals("Select from Gallery")) {

            imageLayout.setVisibility(View.VISIBLE);

            Intent intent = new Intent();
            intent.setType("image/*");
            intent.setAction(Intent.ACTION_GET_CONTENT);
            startActivityForResult(Intent.createChooser(intent, "Select image to upload."), RESULT_LOAD_IMAGE);
        } else if (spnImage.getSelectedItem().toString().equals("Capture Image")) {

            imageLayout.setVisibility(View.VISIBLE);

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


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

        if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
            Uri selectedImage = data.getData();
            String[] filePathColumn = { MediaStore.Images.Media.DATA };
            Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null);
            cursor.moveToFirst();
            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            picturePath = cursor.getString(columnIndex);
            cursor.close();

            imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));

            sldImgPic.setImageBitmap(BitmapFactory.decodeFile(picturePath));
        } else if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK) {
            photo = (Bitmap) data.getExtras().get("data");
            imageView.setImageBitmap(photo);
        }
    }
}

Answer 1

// mnt / sdcard / Android / data是每个应用的私有空间，你无法从这个空间获取文件

如何将图像从Dropbox的Camera upload文件夹设置为android中的ImageView？

1 个答案: