参考链接 http://droidyue.com/blog/2014/07/12/scan-media-files-in-android-chinese-edition/
public void mediaScan(File file) {
MediaScannerConnection.scanFile(this,
new String[]{file.getAbsolutePath()}, new String[]{"image/*"},
new MediaScannerConnection.OnScanCompletedListener() {
@Override
public void onScanCompleted(String path, Uri uri) {
Log.v("MediaScanWork", "file " + path
+ " was scanned seccessfully: " + uri);
}
});
}
