KeyguardUtil.java

package com.RSen.Commandr.util;

import android.app.Activity;
import android.app.KeyguardManager;
import android.content.Context;

/**
 * Created by Ryan on 8/11/2014.
 */
public class KeyguardUtil {
    private static KeyguardManager.KeyguardLock lock;

    private static KeyguardManager.KeyguardLock getLock(Context context) {
        if (lock == null) {
            KeyguardManager keyguardManager = (KeyguardManager) context.getSystemService(Activity.KEYGUARD_SERVICE);
            lock = keyguardManager.newKeyguardLock("Commandr");
        }
        return lock;
    }

    public static void lock(Context context) {
        getLock(context).reenableKeyguard();
    }

    public static void unlock(Context context) {
        getLock(context).disableKeyguard();
    }

}