这个是关于用android手机接收空调机返回数据显示的编程问题：
在主页HomeActivtiy.java里面，接收空调传过来的数据代码是：
private Runnable mLoop = new Runnable() { //被上面实例调用
public void run() {
int len;
byte[] rbuf = new byte[128];
do {
len = mSerial.read(rbuf); //return mSerial.read(rbuf,rbuf.length) （注意：这个就是接收空调机的函数）
// rbuf[len] = 0;
if (len > 0) {
if (len == 35) {
System.arraycopy(rbuf, 0, mReceiveByte.data, 0, 35);//《J6》第64页
mReceiveByte.length = 0; //这里是给它赋值； 这里与if (mReceiveByte.length != 0) 比较；调用下面的类
CheckReceiveBytes(len, mReceiveByte.data);
// KJLoger.debug("Read Length : " + len);
Message msg = new Message(); //《疯狂》第210页
msg.what = 1;
msg.obj = mReceiveByte.data;
mHandler.sendMessage(msg);
mReceiveByte.clear();
} else { //len != 35（在len>0里）即：0<len<35，并且35<len<128
if (mReceiveByte.length != 0) { //与上面作比较；
System.arraycopy(rbuf, 0, mReceiveByte.data, mReceiveByte.length, len); //《J6》第64页
CheckReceiveBytes(len, mReceiveByte.data); //调用下面的函数
// KJLoger.debug("Read Length : " + len);
Message msg = new Message(); //《疯狂》第210页
msg.what = 1;
msg.obj = mReceiveByte.data;
mHandler.sendMessage(msg);
mReceiveByte.clear(); //调用下面的类的函数
} else { //mReceiveByte.length == 0
System.arraycopy(rbuf, 0, mReceiveByte.data, 0, len); //《J6》第64页
// Intent intent = new Intent(); //注意：怎么把Message转换为Intent
// sendBroadcast(intent);
}
}
}
try {
Thread.sleep(100);
} catch (InterruptedException e) {
//public void printStackTrace ():
//Writes a printable representation of this Throwable's stack trace to the System.err stream.
//写一个这个抛出堆栈的一个可打印的代表 到 系统错误流。
e.printStackTrace();
}
if (mStop) {
mRunningMainLoop = false;
return;
}
} while (true);
} //run()函数结束
在显示数据的主页ControlActivity2.java中的代码是：
final Handler mHandler = new Handler() {
int lenCtrl2;
// ha = new HomeActivity(this);
ObjectInputStream ois;
@Override
public void handleMessage(Message msg) {
if (msg.what == 1) {
ByteArrayInputStream bais = new ByteArrayInputStream((byte[]) msg.obj);
try {
ObjectInputStream ois = new ObjectInputStream(bais);
} catch (StreamCorruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
do{
try {
lenCtrl2 = (Integer) ois.readObject();
} catch (OptionalDataException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if(lenCtrl2>0){
if(lenCtrl2 == 35){
System.arraycopy(ois, 0, rbufCtrl2.data, 0, 35);
if(rbufCtrl2.data.length == 0)
CheckReceiveBytes(lenCtrl2,rbufCtrl2.data);
rbufCtrl2.clear();
}else{
if(rbufCtrl2.length!=0){
System.arraycopy(ois, 0, rbufCtrl2.data, 0, lenCtrl2);
CheckReceiveBytes(lenCtrl2,rbufCtrl2.data);
rbufCtrl2.clear();
}else{
System.arraycopy(ois, 0, rbufCtrl2.data, 0, lenCtrl2); //这个才是正常接收。
String str1 = Byte.toString(rbufCtrl2.data[18]);
String str2 = Byte.toString(rbufCtrl2.data[19]);
String str3 = Byte.toString(rbufCtrl2.data[20]);
String str4 = Byte.toString(rbufCtrl2.data[24]);
String str5 = Byte.toString(rbufCtrl2.data[25]);
temperature_theindoor.setText(str1);
temperature_theoutdoor.setText(str2);
humidity_indoor.setText(str3);
temperature_indoorintake.setText(str4);
temperature_outdoorintake.setText(str5);
}
}
}
}while(true);
// temperature_theindoor.setText((char[]) (msg.obj), 18, 1);
// temperature_theoutdoor.setText((char[]) (msg.obj), 19, 1);
// humidity_indoor.setText((char[]) (msg.obj), 20, 20);
// temperature_indoorintake.setText((char[]) (msg.obj), 24, 1);
// temperature_outdoorintake.setText((char[]) (msg.obj), 25, 1);
}
}
private String IntToHex2(byte Value) { //被下面的函数调用 ;实际上就是Byte-->Char[](Character)16进制-->String
char HEX2[] = { Character.forDigit((Value >> 4) & 0x0F, 16), Character.forDigit(Value & 0x0F, 16) };
String Hex2Str = new String(HEX2);
return Hex2Str;
}
private void CheckReceiveBytes(int len, byte[] rbuf) {
StringBuffer rr = new StringBuffer(); //《Java程序设计》第87页
rr.append(len + "\n");
rr.append(rbuf.length + "\n");
for (byte b : rbuf) { //foreach语句
rr.append(IntToHex2(b) + " "); //调用上面的函数
}
Message msgtest = new Message();
msgtest.what = 77; //public int what Message类的域成员
msgtest.obj = rr.toString();
mHandler.sendMessage(msgtest);
}
}
; // 这里是new Handler（）的结束
// Looper.loop();
// } // 这里是run()的结束
// }
// }
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// TODO Auto-generated method stub
}
@Override
public void mOnClickHeadMenu() {
// TODO Auto-generated method stub
}
@Override
public void mOnClickHeadBack() {
// TODO Auto-generated method stub
}
@Override
public void mOnClickHeadBack2() {
// TODO Auto-generated method stub
}
}
但是这个程序编译出来之后，接到空调机里面还是接收不到数据，求解答。
以下页面是我要显示页面的图片：
