Merge "DO NOT MERGE: Keep access point list updated once in short time"

import android.net.wifi.WpsInfo;

import android.nfc.NfcAdapter;

import android.os.Bundle;

import android.os.Handler;

import android.os.HandlerThread;

import android.os.PowerManager;

import android.os.Process;

    private void updateAccessPointsDelayed() {

        // Safeguard from some delayed event handling

        if (getActivity() != null && !mIsRestricted && mWifiManager.isWifiEnabled()) {

            Handler handler = getView().getHandler();

            if (handler != null && handler.hasCallbacks(mUpdateAccessPointsRunnable)) {

                return;

            }

            setProgressBarVisible(true);

            getView().postDelayed(mUpdateAccessPointsRunnable, 300 /* delay milliseconds */);

        }