Android -- 文件扫描

2024-08-24 08:00:44

启动MediaScanner服务，扫描媒体文件，程序通过发送下面的Intent启动MediaScanner服务。

扫描指定文件

public void scanFile(Context ctx, String filePath) {

              Intent scanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);

              scanIntent.setData(Uri.fromFile(new File(filePath)));

              ctx.sendBroadcast(scanIntent);

       }

扫描指定目录

public static final String ACTION_MEDIA_SCANNER_SCAN_DIR = "android.intent.action.MEDIA_SCANNER_SCAN_DIR";

       public void scanDirAsync(Context ctx, String dir) {

              Intent scanIntent = new Intent(ACTION_MEDIA_SCANNER_SCAN_DIR);

              scanIntent.setData(Uri.fromFile(new File(dir)));

              ctx.sendBroadcast(scanIntent);

       }

扫描Sallery

public void sdScan(){

        sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"

                    + Environment.getExternalStorageDirectory())));

    }

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