Android -- 檔案掃描

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啟動MediaScanner服務，掃描媒體檔案，程式通過發送下面的Intent啟動MediaScanner服務。

掃描指定檔案                                                                         

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);       }

掃描指定目錄                                                                         

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);       }

掃描Sallery                                                                           

public void sdScan(){             sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"                        + Environment.getExternalStorageDirectory())));         }

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Android -- 檔案掃描