我有一个可以将应用程序输入文本字段中的字符串数据发送到我的PC上的TCP服务器的工作应用程序。我添加了BroadcastReceiver类,以便在接收到消息时向计算机发送消息。应用程序接收到消息(Toast正在工作),但我无法使其将接收到的消息发送到PC。
没有错误。应用程序只是跳过所调用的方法。
如何在onReceive内调用方法?
非常感谢您的任何帮助!
public class SmsReceiver extends BroadcastReceiver {
String phone;
String message;
@Override
public void onReceive(Context context, Intent intent) {
Bundle intentExtras = intent.getExtras();
if (intentExtras != null) {
// Get Messages
Object[] sms = (Object[]) intentExtras.get("pdus");
for (int i = 0; i < sms.length; ++i) {
// Parse Each Message
SmsMessage smsMessage = SmsMessage.createFromPdu((byte[]) sms[i]);
phone = smsMessage.getOriginatingAddress();
message = smsMessage.getMessageBody().toString();
System.out.println("Message is: "+message);
Log.i("sth","message "+message);
//What i have tried
sendMessage(message);
//creating instance
MessageSender messageSender = new MessageSender();
messageSender.execute(message);
//calling metod from MainActivity
((MainActivity)context.getApplicationContext()).send2(message);
MainActivity.send2(message);
//toast is working fine
Toast.makeText(context,"Alert:"+ phone + ": " + message, Toast.LENGTH_SHORT).show();
}
}
}
public void sendMessage(String s)
{
MessageSender messageSender = new MessageSender();
messageSender.execute(s);
}
主活动
public class MainActivity extends AppCompatActivity {
EditText e1;
@Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
e1 = (EditText)findViewById(R.id.editText);
//This works
MessageSender messageSender = new MessageSender();
messageSender.execute("App launched!");
}
//On Button click. Working good.
public void send(View v)
{
MessageSender messageSender = new MessageSender();
messageSender.execute(e1.getText().toString());
}
//For test purposes
public static void send2(String s)
{
MessageSender messageSender = new MessageSender();
messageSender.execute(s);
}
消息发送器
public class MessageSender extends AsyncTask<String,Void,Void>
{
Socket s;
DataOutputStream dos;
PrintWriter pw;
@Override
public Void doInBackground(String... voids) {
String message = voids[0];
try {
s = new Socket("192.168.1.69", 7800);
pw = new PrintWriter(s.getOutputStream());
pw.write(message);
pw.flush();
pw.close();
s.close();
}catch(IOException e)
{
e.printStackTrace();
}
return null;
}
添加服务端代码:
public class MyServerFrame extends javax.swing.JFrame
{
static Socket s;
static ServerSocket ss;
static InputStreamReader isr;
static BufferedReader br;
static String message;public MyServerFrame()
{
}
public static void main(String args[])
{
try
{
ss = new ServerSocket(7800);
while(true)
{
s=ss.accept();
isr = new InputStreamReader(s.getInputStream());
br = new BufferedReader(isr);
StringBuilder everything = new StringBuilder();
String line;
while( (line = reader.readLine()) != null)
{
everything.append(line);
}
message = everything.toString();//multiple to onelinestring
System.out.println(message);
}
}catch (IOException e)
{
e.printStackTrace();
}
}
}