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Java 用于Android蓝牙流媒体的缓冲读卡器_Java_Android_Bluetooth_Stream_Arduino - Fatal编程技术网

Java 用于Android蓝牙流媒体的缓冲读卡器

Java 用于Android蓝牙流媒体的缓冲读卡器,java,android,bluetooth,stream,arduino,Java,Android,Bluetooth,Stream,Arduino,嘿,伙计们,我正在尝试从蓝牙设备读取一个流,连续流式传输整数,如下所示: -11 121 123 1234 -11 我在网上找到了一些代码,但要处理一些数字需要是int而不是字符串,parseInt占用了太多的CPU,我尝试使用缓冲流,但没有效果 以下是当前的方法: void beginListenForData() { final Handler handler = new Handler(); final byte delimiter = 10; //This is

嘿,伙计们,我正在尝试从蓝牙设备读取一个流,连续流式传输整数,如下所示:

-11
121
123
1234
-11
我在网上找到了一些代码,但要处理一些数字需要是int而不是字符串,parseInt占用了太多的CPU,我尝试使用缓冲流,但没有效果

以下是当前的方法:

 void beginListenForData()
        {
final Handler handler = new Handler(); 
  final byte delimiter = 10; //This is the ASCII code for a newline character

        stopWorker = false;
        readBufferPosition = 0;
        readBuffer = new byte[1024];
        workerThread = new Thread(new Runnable()
        {
            public void run()
            {                
               while(!Thread.currentThread().isInterrupted() && !stopWorker)
               {
                    try 
                    {
                        int bytesAvailable = mmInputStream.available();                        
                        if(bytesAvailable > 0)
                        {
                            byte[] packetBytes = new byte[bytesAvailable];
                            mmInputStream.read(packetBytes);
                            for(int i=0;i<bytesAvailable;i++)
                            {
                                byte b = packetBytes[i];
                                if(b == delimiter)
                                {
                                    byte[] encodedBytes = new byte[readBufferPosition];
                                    System.arraycopy(readBuffer, 0, encodedBytes, 0, encodedBytes.length);
                                    final String data = new String(encodedBytes, "US-ASCII");
                                    readBufferPosition = 0;

                                    handler.post(new Runnable()
                                    {
                                        public void run()
                                        {
                                            myLabel.setText(data);
                                        }
                                    });
                                }
                                else
                                {
                                    readBuffer[readBufferPosition++] = b;
                                }
                            }
                        }
                    } 
                    catch (IOException ex) 
                    {
                        stopWorker = true;
                    }
               }
            }
        });

        workerThread.start();
    }
void beginListenForData()
{
最终处理程序=新处理程序();
final byte delimiter=10;//这是换行符的ASCII码
stopWorker=false;
readBufferPosition=0;
readBuffer=新字节[1024];
workerThread=新线程(new Runnable())
{
公开募捐
{                
而(!Thread.currentThread().isInterrupted()&&!stopWorker)
{
尝试
{
int bytesavable=mmInputStream.available();
如果(字节可用>0)
{
byte[]packetBytes=新字节[bytesAvailable];
mmInputStream.read(packetBytes);

对于(int i=0;i使用围绕
BufferedInputStream
DataInputStream
readInt()
方法。这当然假定网络字节顺序为整数


忘记所有这些
arraycopy()
东西。

使用
DataInputStream
包装在
BufferedInputStream
周围,以及
readInt()
方法。这当然假设网络字节顺序为整数


忘记所有这些
arraycopy()
东西。

我尝试过使用:final-BufferedInputStream-inputStream=new-BufferedInputStream(mmInputStream);final-DataInputStream-DataInputStream=new-DataInputStream(inputStream);仍然没有显示upI尝试使用此选项:final BufferedInputStream inputStream=new BufferedInputStream(mmInputStream);final DataInputStream DataInputStream=new DataInputStream(inputStream);仍然没有显示任何内容