1、扫描sd卡整个目录,效率比较低
public void allScan() {
sendBroadcast(new Intent(
Intent.ACTION_MEDIA_MOUNTED,
Uri.parse("file://" + Environment.getExternalStorageDirectory().getAbsolutePath())));
}
2、扫描某一个目录
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);
}
3、扫描某个文件,效率最快
public static void scanFileAsync(Context ctx, String filePath) {
Intent scanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
scanIntent.setData(Uri.fromFile(new File(filePath)));
ctx.sendBroadcast(scanIntent);
}