如何把一对夫妇的onclick听众的socket编程方法里面呢？ [英] how to put a couple of onclick listeners inside of sockets programming method?
问题描述
我有一个Android的套接字程序，我想通过点击客户端上的按钮发送命令或文本消息。并发送根据不同的短信哪个按钮是pressed。但我得到有关从走出去PrintWriter对象的编译错误信息
为PrintWriter了=的新PrintWriter（新的BufferedWriter（新OutputStreamWriter（插座
.getOutputStream（））），TRUE）;
如果我用这个明一个onclick听众里面，我怎么解决这个编译器错误？我真的不希望让这个最终的变数所推荐的编译器的修复程序。
下面是两个按钮的onclick监听器里面的run（）方法的来自客户端通过套接字发送按摩服务器Android应用
下面显示的code如果你单击该按钮，森达它发送短信种皮，如果你点击该按钮SENDB发送短信TESTB
公共无效的run（）{
尝试{
InetAddress类serverAddr = InetAddress.getByName（serverIpAddress）;
Log.d（ClientActivity，C：连接...）;
Socket套接字=新的Socket（serverAddr，8080）;
连接= TRUE;
而（连接）{
尝试{
Log.d（ClientActivity，C：发送命令。）;
为PrintWriter了=的新PrintWriter（新的BufferedWriter（新OutputStreamWriter（插座
.getOutputStream（））），TRUE）; sendA.setOnClickListener（新View.OnClickListener（）{
公共无效的onClick（视图v）{ 通过out.println（种皮）; }
}）; sendB.setOnClickListener（新View.OnClickListener（）{
公共无效的onClick（视图v）{ 通过out.println（TESTB）; }
}）; //在这里你发出的命令
//通过out.println（testX）;
Log.d（ClientActivity，C：发送。）;
}赶上（例外五）{
Log.e（ClientActivity，S：错误，E）;
}
}
socket.close（）;
Log.d（ClientActivity，C：关闭。）;
}赶上（例外五）{
Log.e（ClientActivity，C：错误，E）;
连接= FALSE;
}
}
}
把决赛将清除错误。
最后的PrintWriter了=的新PrintWriter（新的BufferedWriter（新OutputStreamWriter（插座
.getOutputStream（））），TRUE）;
但就像你说你不想最后，那么为什么不宣退出为全局变量？
//全局变量
PrintWriter的出来;.......OUT =的新PrintWriter（新的BufferedWriter（新OutputStreamWriter（插座
.getOutputStream（））），TRUE）;
i have a sockets program in android, i want to send a command or text message by clicking button on the client side. and send a different text message depending on which button is pressed. but i am getting the complier error message about the "out" PrintWriter object from PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket .getOutputStream())), true);
if i use this "out" inside of an onclick listener, how do i fix this compiler error? I don't really want to make this a final variable as recommended by the compiler as a fix.
here is the code shown below with the two onclick button listeners inside of the run() method for sending massage by socket from client to server android app
if you click the sendA button it sends the text message "testA" and if you click the sendB button it sends the text message "testB"
public void run() {
try {
InetAddress serverAddr = InetAddress.getByName(serverIpAddress);
Log.d("ClientActivity", "C: Connecting...");
Socket socket = new Socket(serverAddr, 8080);
connected = true;
while (connected) {
try {
Log.d("ClientActivity", "C: Sending command.");
PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket
.getOutputStream())), true);
sendA.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
out.println("testA");
}
});
sendB.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
out.println("testB");
}
});
// where you issue the commands
// out.println("testX");
Log.d("ClientActivity", "C: Sent.");
} catch (Exception e) {
Log.e("ClientActivity", "S: Error", e);
}
}
socket.close();
Log.d("ClientActivity", "C: Closed.");
} catch (Exception e) {
Log.e("ClientActivity", "C: Error", e);
connected = false;
}
}
}
Putting final will clear your error.
final PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket
.getOutputStream())), true);
But like you said you dont want final, then why not declare out as a global variable?
// global variable
PrintWriter out;
.......
out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket
.getOutputStream())), true);
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