Android：获取设备的mac地址可靠的方法

/** * 获取设备的mac地址 *  * @param ac * @param callback *            成功获取到mac地址之后会回调此方法 */public static void getMacAddress(final Activity ac, final SimpleCallback callback) {final WifiManager wm = (WifiManager) ac .getSystemService(Service.WIFI_SERVICE);// 如果本次开机后打开过WIFI，则能够直接获取到mac信息。立刻返回数据。WifiInfo info = wm.getConnectionInfo();if (info != null && info.getMacAddress() != null) {if (callback != null) {callback.onComplete(info.getMacAddress());}return;}// 尝试打开WIFI，并获取mac地址if (!wm.isWifiEnabled()) {wm.setWifiEnabled(true);}new Thread(new Runnable() {@Overridepublic void run() {int tryCount = 0;final int MAX_COUNT = 10;while (tryCount < MAX_COUNT) {final WifiInfo info = wm.getConnectionInfo();if (info != null && info.getMacAddress() != null) {if (callback != null) {ac.runOnUiThread(new Runnable() {@Overridepublic void run() {callback.onComplete(info.getMacAddress());}});}return;}SystemClock.sleep(300);tryCount++;}// 未获取到mac地址if (callback != null) {callback.onComplete(null);}}}).start();}

SimpleCallback是一个简单的回调接口：

public interface SimpleCallback {void onComplete(String result);}

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