让手机振动时，屏幕关闭 [英] Allow phone to vibrate when screen turns off

问题描述

我要寻找一种方式，让我的程序，使手机震动后屏幕已经超时关闭。我已经做了很多的研究，并没有发现一些作品。我已经看过了电源管理器类，更具体的WakeLock机制。从很多帖子的声音，我需要使用WakeLock类的PARTIAL_WAKE_LOCK变量。

  

PARTIAL_WAKE_LOCK - 唤醒锁，保证了CPU运行

。

不过，我不能把它当屏幕关闭振动手机。我知道我使用正确WakeLock，因为我可以得到SCREEN_DIM_WAKE_LOCK工作。是PARTIAL_WAKE_LOCK什么，我找？

解决方案

  @覆盖

    公共无效的onCreate（）{

        super.onCreate（）;

        //注册接收器，手柄屏幕上，屏幕关闭逻辑

        IntentFilter的过滤器=新的IntentFilter（Intent.ACTION_SCREEN_ON）;

        filter.addAction（Intent.ACTION_SCREEN_OFF）;

        BroadcastReceiver的mReceiver =新ScreenReceiver（）;

        registerReceiver（mReceiver，过滤器）;

    }



    @覆盖

    公共无效ONSTART（意向意图，诠释startId）{

        布尔screenOn = intent.getBooleanExtra（screen_state，假）;

        如果（！screenOn）{

            //获取振动器的情况下，从当前上下文
            振动器V =（震动）getSystemService（Context.VIBRATOR_SERVICE）;
           //这个例子将导致手机震动SOS的莫尔斯code
           //在莫尔斯code，S=点 - 点 - 点，O=破折号，破折号，破折号
           //有停顿，以独立的点/破折号，字母和单词
           //下面的数字重新present毫秒长度
            INT点= 200; //的莫尔斯code以毫秒为单位点长度
           INT破折号= 500; //在毫秒莫尔斯code冲刺长
            INT short_gap = 200; //峡长点/破折号之间
           INT medium_gap = 500; //间隙长度字母之间
           INT long_gap = 1000; //间隙长度词的
            长[]模式= {
             0，//立即开始
             点，short_gap，圆点，short_gap，圆点，//小号
             medium_gap，
             破折号，short_gap，破折号，short_gap，破折号，//Ø
            medium_gap，
            点，short_gap，圆点，short_gap，圆点，//小号
           long_gap
           };

           //只有执行该模式的一个时间（-1表示不重复）
          v.vibrate（图案，-1）;


        } 其他 {

            //你的code

        }

    }
 

请注意û必须添加使用，允许行到你的Manifest.xml文件，块之外。

 ＆LT;舱单的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android包=...＆GT;
＆LT;使用-权限的Andr​​oid：名称=android.permission.VIBRATE/＆GT;
 

请注意：您还必须在真正的手机测试这个code，仿真器将无法viberate

I am looking for a way to allow my program to make the phone vibrate after the screen has turned off from timing out. I have done lots of research, and have not found something that works. I have looked at the PowerManager class and more specifically the WakeLock mechanism. From the sound of many posts, I would need to use the PARTIAL_WAKE_LOCK variable of the WakeLock class.

PARTIAL_WAKE_LOCK - Wake lock that ensures that the CPU is running.

However, I cannot get it to vibrate the phone when the screen turns off. I know I am using the WakeLock correctly because I can get SCREEN_DIM_WAKE_LOCK to work. Is PARTIAL_WAKE_LOCK what I am looking for?

解决方案

 @Override

    public void onCreate() {

        super.onCreate();

        // REGISTER RECEIVER THAT HANDLES SCREEN ON AND SCREEN OFF LOGIC

        IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);

        filter.addAction(Intent.ACTION_SCREEN_OFF);

        BroadcastReceiver mReceiver = new ScreenReceiver();

        registerReceiver(mReceiver, filter);

    }



    @Override

    public void onStart(Intent intent, int startId) {

        boolean screenOn = intent.getBooleanExtra("screen_state", false);

        if (!screenOn) {

            // Get instance of Vibrator from current Context
            Vibrator v = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
           // This example will cause the phone to vibrate "SOS" in Morse Code
           // In Morse Code, "s" = "dot-dot-dot", "o" = "dash-dash-dash"
           // There are pauses to separate dots/dashes, letters, and words
           // The following numbers represent millisecond lengths
            int dot = 200;      // Length of a Morse Code "dot" in milliseconds
           int dash = 500;     // Length of a Morse Code "dash" in milliseconds
            int short_gap = 200;    // Length of Gap Between dots/dashes
           int medium_gap = 500;   // Length of Gap Between Letters
           int long_gap = 1000;    // Length of Gap Between Words
            long[] pattern = {
             0,  // Start immediately
             dot, short_gap, dot, short_gap, dot,    // s
             medium_gap,
             dash, short_gap, dash, short_gap, dash, // o
            medium_gap,
            dot, short_gap, dot, short_gap, dot,    // s
           long_gap
           };

           // Only perform this pattern one time (-1 means "do not repeat")
          v.vibrate(pattern, -1);


        } else {

            // YOUR CODE

        }

    }

note u must Add the uses-permission line to your Manifest.xml file, outside of the block.

<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="...">
<uses-permission android:name="android.permission.VIBRATE"/>

note : you must also test this code on a real phone , emulator can't viberate

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