下载的图像未显示在Gallery，Android Nougat中

Question

我正在开发一个应用程序，我正在下载图像并将其存储到内部存储中。在Nougat安装设备上的Gallery中显示下载的图像时遇到问题。

  if (Build.VERSION.SDK_INT >= 14)

    {
        Log.e("-->", " >= 14");
        MediaScannerConnection.scanFile(getApplicationContext(), new String[]{event.getFilePath()}, new String[]{".jpg"}, new MediaScannerConnection.OnScanCompletedListener() {
            /*
             *   (non-Javadoc)
             * @see android.media.MediaScannerConnection.OnScanCompletedListener#onScanCompleted(java.lang.String, android.net.Uri)
             */
            public void onScanCompleted(String path, Uri uri) {
                Log.e("ExternalStorage", "Scanned " + path + ":");
                Log.e("ExternalStorage", "-> uri=" + uri);
            }
        });
    } else

    {
        Log.e("-->", " < 14");
        sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED,
                Uri.parse("file://" + Environment.getExternalStorageDirectory())));
    }
}
  public static File getStorageFolder(){
    return new File(Environment.getExternalStoragePublicDirectory 
           (Environment.DIRECTORY_DCIM),"Camera");
  }

注意：仅在Nougat设备上出现问题

任何帮助都会得到赞赏，

谢谢

Answer 1

“。jpg”不是图片的有效MIME类型。

使用mime类型数组

new String[]{"image/jpeg", "image/png"}

而不是

new String[]{".jpg"}