最近学习了一下socket通信相关的知识，决定从UDP进行文字传输开始做起。华为手机效果如图：
我的另一部是小米手机：网络IP为192.168.1.118 就不截图了，这部华为手机IP为192.168.1.102，注意上面填写的IP为接收方的IP而不是自己的IP
点击发送按钮，开始发送消息：
private DatagramSocket sendSocket = null;
private int sendPort = 8856;
private void sendMsg() {
try {
if (sendSocket == null) {
sendSocket = new DatagramSocket(sendPort);
}
InetAddress inetAddress = InetAddress.getByName(tvReceiveIp.getText().toString());
byte[] bytes = tvServiceMsg.getText().toString().getBytes();
DatagramPacket datagramPacket = new DatagramPacket(bytes, bytes.length, inetAddress, receivePort);
sendSocket.send(datagramPacket);
mHandler.sendEmptyMessage(0);
System.out.println("MainActivity = " + "发送成功");
isRunning = true;
} catch (SocketException e) {
e.printStackTrace();
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private DatagramSocket sendSocket = null;
private int sendPort = 8856;
private void sendMsg() {
try {
if (sendSocket == null) {
sendSocket = new DatagramSocket(sendPort);
}
InetAddress inetAddress = InetAddress.getByName(tvReceiveIp.getText().toString());
byte[] bytes = tvServiceMsg.getText().toString().getBytes();
DatagramPacket datagramPacket = new DatagramPacket(bytes, bytes.length, inetAddress, receivePort);
sendSocket.send(datagramPacket);
mHandler.sendEmptyMessage(0);
System.out.println("MainActivity = " + "发送成功");
isRunning = true;
} catch (SocketException e) {
e.printStackTrace();
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
另一部手机点击接收，开始接收：
private DatagramSocket receiveSocket = null;
private int receivePort = 8855;
DatagramPacket datagramPacket;
private void receiveMsg() {
try {
while (isRunning) {
if (receiveSocket == null) {
receiveSocket = new DatagramSocket(receivePort);
}
byte[] bytes = new byte[1024];
datagramPacket= new DatagramPacket(bytes, 0, bytes.length);
receiveSocket.receive(datagramPacket);
mHandler.sendEmptyMessage(1);
System.out.println("Main2Activity接收成功 = " + new String(datagramPacket.getData()));
}
} catch (SocketException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
发送和接收到的消息通知主线程刷新：
Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
switch (msg.what) {
case 0:
creatMessageBean(tvServiceMsg.getText().toString(), true);
break;
case 1:
creatMessageBean(new String(datagramPacket.getData()), false);
break;
}
}
};
private void creatMessageBean(String msg, boolean isSend) {
MessageBean messageBean = new MessageBean(msg, isSend);
mAdapter.setData(messageBean);
}
这样一个简单的通信demo就完成了，当然在demo中我没有做严谨的校验，只是为了实现整个流程
demo下载地址为：点击打开链接
因为此系列的目的是实现音频的传输，所以下一篇会先研究音频的录制。
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