app连接wifi模块,通过wifi模块串口读取数据失败
2017-01-02 02:46
525 查看
写了一个数据接收测试的程序,如果接收到数据则实现一个toast,但运行没有实现。
WIFI板块参考资料:
arduino模块向WIFI模块不断输入数据:
app源码:
1.layout:activity_main.xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="数据接收测试" />
</RelativeLayout>
2.MainActivity.java:
package ceshi;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.Socket;
import java.net.URL;
import com.example.ceshi.R;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.app.Activity;
import android.util.Log;
import android.widget.Toast;
public class MainActivity extends Activity {
URL videoUrl;
private boolean isConnecting = false;
private Thread mThreadClient = null;
private Socket mSocketClient = null;
static BufferedReader mBufferedReaderClient = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mThreadClient = new Thread(mRunnable);
mThreadClient.start();
}
private Runnable mRunnable = new Runnable() //开线程连接服务器,获取输入、输出流
{
public void run()
{
String msgText ="192.168.1.1:2001";
int start = msgText.indexOf(":"); // 找到端口号的标示符,控制端口号为2001
String sIP = msgText.substring(0, start); //得到链接的ip地址
String sPort = msgText.substring(start+1); //找到端口号2001
int port = Integer.parseInt(sPort); //String型转换为Int型
Log.d("gjz", "IP:"+ sIP + ":" + port);
try
{
//连接服务器
mSocketClient = new Socket(sIP, port); //portnum
//取得输入、输出流
mBufferedReaderClient = new BufferedReader(new InputStreamReader(mSocketClient.getInputStream()));
Message msg = new Message();
msg.what = 1;
mHandler.sendMessage(msg);
//break;
}
catch (Exception e)
{
Message msg = new Message();
msg.what = 1;
mHandler.sendMessage(msg);
return;
}
char[] buffer = new char[256];
while (isConnecting)
{
try
{
//if ( (recvMessageClient = mBufferedReaderClient.readLine()) != null )
if((mBufferedReaderClient.read(buffer))>0)
{
Toast.makeText(getApplicationContext(), "数据接收成功", Toast.LENGTH_SHORT).show();
Message msg = new Message();
msg.what = 1;
mHandler.sendMessage(msg);
}
}
catch (Exception e)
{
Message msg = new Message();
msg.what = 1;
mHandler.sendMessage(msg);
}
}
}
};
Handler mHandler = new Handler()
{
public void handleMessage(Message msg)
{
super.handleMessage(msg);
}
};
public void onDestroy()
{
super.onDestroy();
if (isConnecting)
{
isConnecting = false;
try
{
if(mSocketClient!=null)
{
mSocketClient.close();
mSocketClient = null;
}
}
catch (IOException e)
{
e.printStackTrace();
}
mThreadClient.interrupt();
}
}
}
不知道这么测试有没有问题?正常来说,arduino是能向WIFI模块输入数据(这里我用arduino设置每5S向串口发送一个数字:1),所以应该是程序的问题,但不知道问题出在哪?
WIFI板块参考资料:
arduino模块向WIFI模块不断输入数据:
app源码:
1.layout:activity_main.xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="数据接收测试" />
</RelativeLayout>
2.MainActivity.java:
package ceshi;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.Socket;
import java.net.URL;
import com.example.ceshi.R;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.app.Activity;
import android.util.Log;
import android.widget.Toast;
public class MainActivity extends Activity {
URL videoUrl;
private boolean isConnecting = false;
private Thread mThreadClient = null;
private Socket mSocketClient = null;
static BufferedReader mBufferedReaderClient = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mThreadClient = new Thread(mRunnable);
mThreadClient.start();
}
private Runnable mRunnable = new Runnable() //开线程连接服务器,获取输入、输出流
{
public void run()
{
String msgText ="192.168.1.1:2001";
int start = msgText.indexOf(":"); // 找到端口号的标示符,控制端口号为2001
String sIP = msgText.substring(0, start); //得到链接的ip地址
String sPort = msgText.substring(start+1); //找到端口号2001
int port = Integer.parseInt(sPort); //String型转换为Int型
Log.d("gjz", "IP:"+ sIP + ":" + port);
try
{
//连接服务器
mSocketClient = new Socket(sIP, port); //portnum
//取得输入、输出流
mBufferedReaderClient = new BufferedReader(new InputStreamReader(mSocketClient.getInputStream()));
Message msg = new Message();
msg.what = 1;
mHandler.sendMessage(msg);
//break;
}
catch (Exception e)
{
Message msg = new Message();
msg.what = 1;
mHandler.sendMessage(msg);
return;
}
char[] buffer = new char[256];
while (isConnecting)
{
try
{
//if ( (recvMessageClient = mBufferedReaderClient.readLine()) != null )
if((mBufferedReaderClient.read(buffer))>0)
{
Toast.makeText(getApplicationContext(), "数据接收成功", Toast.LENGTH_SHORT).show();
Message msg = new Message();
msg.what = 1;
mHandler.sendMessage(msg);
}
}
catch (Exception e)
{
Message msg = new Message();
msg.what = 1;
mHandler.sendMessage(msg);
}
}
}
};
Handler mHandler = new Handler()
{
public void handleMessage(Message msg)
{
super.handleMessage(msg);
}
};
public void onDestroy()
{
super.onDestroy();
if (isConnecting)
{
isConnecting = false;
try
{
if(mSocketClient!=null)
{
mSocketClient.close();
mSocketClient = null;
}
}
catch (IOException e)
{
e.printStackTrace();
}
mThreadClient.interrupt();
}
}
}
不知道这么测试有没有问题?正常来说,arduino是能向WIFI模块输入数据(这里我用arduino设置每5S向串口发送一个数字:1),所以应该是程序的问题,但不知道问题出在哪?
相关文章推荐
- winform中读取App.config中数据连接字符串
- java通过串口读取数据
- Python3通过数据缓存区读取串口数据
- python通过串口读取GPS NMEA格式的数据,并保存为csv文件
- 通过dom4j 读取远程连接数据
- 通过广播监听WiFi连接状态,自动读取数据WifiManager /NetworkInfo
- MATLAB通过串口读取数据,分别并生成一维和三维图像。
- 通过 pyodbc 连接access读取数据
- FLEX中的MXML通过JDBC连接ORACLE读取相关数据
- 用VC(Visual C++)读取串口数据并通过Flash图表类将其绘制为实时曲线
- Arduino Uno 连接JY-61陀螺仪模块 串口读取数据
- AppDelegate存储全局变量和 NSUserDefaults standardUserDefaults 通过模型保存和读取数据,存储自定义的对象
- ACCESS通过一个连接写入的数据,还有一个连接却读取不出来
- winform中读取App.config中数据连接字符串
- ContentProvider跨APP读取数据失败
- App 和设备通过蓝牙连接收发数据
- 【java基础:JDBC】通过读取配置文件进行数据库连接并读取数据的Demostration
- PX4固件通过UART连接串口读取超声波,和树莓派3通信
- 通过读取串口数据,把数据写入MySQL
- SAP连接电脑串口读数(电子称,磅等数据读取)