在具体路径（文件夹），触发mediascanner如何？ [英] Trigger mediascanner on specific path (folder), how to?

问题描述

我得到了这个类：

import android.content.Context;
import android.media.MediaScannerConnection;
import android.net.Uri;
import android.util.Log;

public class MediaScannerWrapper implements  
MediaScannerConnection.MediaScannerConnectionClient {
    private MediaScannerConnection mConnection;
    private String mPath;
    private String mMimeType;


    // filePath - where to scan; 
    // mime type of media to scan i.e. "image/jpeg". 
    // use "*/*" for any media
    public MediaScannerWrapper(Context ctx, String filePath, String mime){
        mPath = "/sdcard/DCIM/Camera";
        mMimeType = "jpg";
        mConnection = new MediaScannerConnection(ctx, this);
    }

    // do the scanning
    public void scan() {
        mConnection.connect();
    }

    // start the scan when scanner is ready
    public void onMediaScannerConnected() {
        mConnection.scanFile(mPath, mMimeType);
        Log.w("MediaScannerWrapper", "media file scanned: " + mPath);
    }

    public void onScanCompleted(String path, Uri uri) {
        // when scan is completes, update media file tags
    }
}

如何使用它在其他类？ 我不知道如何正确使用类，我试过，但没有什么工作。 我做错了什么，但我不知道是什么，有人可以帮我这个。

How to use it in the other class? I don't know how to properly use classes, I tried but nothing is working. I do something wrong, but I don't know what, can someone help me with this.

推荐答案

嘿，我发现了如何用一个非常简单的code做到这一点。

Hey I found out how to do it with a very simple code.

只需拨打该行的code：

Just call this line of code:

sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + Environment.getExternalStorageDirectory())));

这将引发mediascanner。

This should trigger mediascanner.

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