java - 将图片从android插入数据库

Question

在我的项目中，我遇到了将图片从 android 插入数据库的问题。 我成功地从图库移动设备插入了图片，但无法从相机移动设备插入图片。 这是我的源代码

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == RESULT_OK) {
        if (requestCode == REQUEST_CAMERA) {
            Uri selectedImage = data.getData();
            String[] filePathColumn = { MediaColumns.DATA };
            Cursor cursor = getContentResolver().query(selectedImage,
                    filePathColumn, null, null, null);
            cursor.moveToFirst();

            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            String filePath = cursor.getString(columnIndex);
            cursor.close();
            pathToOurFile = filePath;
            format = filePath.substring(filePath.lastIndexOf(".") + 1,
                    filePath.length());
            this.imGambar.setImageBitmap((Bitmap) data.getExtras().get(
                    "data"));

        } else if (requestCode == SELECT_FILE) {
            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]);
            String filePath = cursor.getString(columnIndex);
            cursor.close();
            pathToOurFile = filePath;
            format = filePath.substring(filePath.lastIndexOf(".") + 1,
                    filePath.length());
            this.imGambar
                    .setImageBitmap(BitmapFactory.decodeFile(filePath));
        }
    }
}

Answer 1

此方法无法正常获取请求相机 Activity 结果中的 Uri。你最好使用:

Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
mImageCaptureUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE); 
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, mImageCaptureUri);
startActivityForResult(cameraIntent, CAMERA_REQUEST);

在 onActivityResult 中:

String path = mImageCaptureUri.toString();

哪里

Uri mImageCaptureUri ;

是一个全局变量。

希望对你有帮助...