7

我使用这个类来扫描我在 SDCard 中的应用程序图像。

public class SingleMediaScanner implements MediaScannerConnectionClient {

private MediaScannerConnection mMs;
private File mFile;

public SingleMediaScanner(Context context, File f) {
    mFile = f;
    mMs = new MediaScannerConnection(context, this);
    mMs.connect();
}

@Override
public void onMediaScannerConnected() {
    mMs.scanFile(mFile.getAbsolutePath(), null);
}

@Override
public void onScanCompleted(String path, Uri uri) {
    mMs.disconnect();
}
}

它有效，但在我的 LogCat 中它总是显示错误：

12-29 16:44:16.022: ERROR/ActivityThread(21807): Activity com.cny.ecard.CustomListDialog has leaked ServiceConnection android.media.MediaScannerConnection@450fb8e0 that was originally bound here
12-29 16:44:16.022: ERROR/ActivityThread(21807): android.app.ServiceConnectionLeaked: Activity com.cny.ecard.CustomListDialog has leaked ServiceConnection android.media.MediaScannerConnection@450fb8e0 that was originally bound here
12-29 16:44:16.022: ERROR/ActivityThread(21807):     at android.app.ActivityThread$PackageInfo$ServiceDispatcher.<init>(ActivityThread.java:1121)
12-29 16:44:16.022: ERROR/ActivityThread(21807):     at android.app.ActivityThread$PackageInfo.getServiceDispatcher(ActivityThread.java:1016)
12-29 16:44:16.022: ERROR/ActivityThread(21807):     at android.app.ContextImpl.bindService(ContextImpl.java:863)
12-29 16:44:16.022: ERROR/ActivityThread(21807):     at android.content.ContextWrapper.bindService(ContextWrapper.java:347)
12-29 16:44:16.022: ERROR/ActivityThread(21807):     at android.media.MediaScannerConnection.connect(MediaScannerConnection.java:117)
12-29 16:44:16.022: ERROR/ActivityThread(21807):     at com.cny.ecard.SingleMediaScanner.<init>(SingleMediaScanner.java:19)

问题是什么？谢谢。

4

2 回答 2

15

对于扫描单个文件，或从无法绑定到服务的上下文中扫描文件（例如，从 a BroadcastReceiver），user430926 的评论应该是一个单独的答案：

Uri contentUri = Uri.fromFile(file);
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE); 
mediaScanIntent.setData(contentUri);
sendBroadcast(mediaScanIntent);
于 2012-11-01T14:32:44.253 回答
2

android 媒体扫描器服务类似于绑定服务，因此当您完成扫描后，您可以使用context.unbindService取消绑定。

于 2011-12-29T09:09:06.837 回答