Android 无法在eclipse中将字符串解析为整数
我正在将我的应用程序连接到蓝牙串行连接。 我想将Android 无法在eclipse中将字符串解析为整数,android,Android,我正在将我的应用程序连接到蓝牙串行连接。 我想将字符串中的数据更改为整数,以便进行比较 阅读信息时就是这样: case MESSAGE_READ: byte[] readBuf = (byte[]) msg.obj; // construct a string from the valid bytes in the buffer String readMessage = new String(readBuf, 0, msg.arg1);
字符串
中的数据更改为整数
,以便进行比较
阅读信息时就是这样:
case MESSAGE_READ:
byte[] readBuf = (byte[]) msg.obj;
// construct a string from the valid bytes in the buffer
String readMessage = new String(readBuf, 0, msg.arg1);
Log.i(LOG_TAG, readMessage);
mTextView.setText(readMessage);
if(mTextView!=null){
int read = Integer.parseInt(readMessage.trim());
if (read<1 && read>28){
alarm();
sendSMS();
}
}
/* int read = new Integer(readMessage.trim());
if (read<1&&read>28){
alarm();
sendSMS();
}*/
/*if (readMessage.trim().equalsIgnoreCase("20"))
{
alarm();
sendSMS();
}*/
break;
然后我将其更改为:
在案例消息中:
case MESSAGE_READ:
int i;
byte[] readBuf = (byte[]) msg.obj;
// construct a string from the valid bytes in the buffer
String readMessage = new String(readBuf, 0, msg.arg1);
Log.i(LOG_TAG, readMessage);
mTextView.setText(readMessage);
List<Integer> integers = new ArrayList<Integer>();
String [] numbers = readMessage.split("\n");
for (String number : numbers) {
integers.add(Integer.valueOf(number.trim()));
}
/* int read = new Integer(readMessage.trim());
if (read<1&&read>28){
alarm();
sendSMS();
}*/
/*if (readMessage.trim().equalsIgnoreCase("20"))
{
alarm();
sendSMS();
}*/
break;
有人知道解决办法吗?
非常感谢。您的邮件包含一个包含许多数字的字符串,在单独的行中。您不能在单个整数中解析这样的字符串-因此您会得到错误 您可以尝试这样读取整数数组:
List<Integer> integers = new ArrayList<Integer>();
String [] numbers = readMessage.split("\n");
for (String number : numbers) {
integers.add(Integer.valueOf(number.trim()));
}
List integers=new ArrayList();
String[]number=readMessage.split(“\n”);
用于(字符串编号:数字){
add(Integer.valueOf(number.trim());
}
在此代码之后,
整数将包含您在消息中收到的数字。当我用try-catch块包围它时,它也出现了同样的问题,开始工作。
比如:
请分享代码行FinalSetting.java:352,它看起来像你试图解析无效的nothanks,我按照你的指示,但仍然有错误。有关完整信息,请看我新编辑的问题:D
05-05 23:14:39.519: D/BluetoothReadService(9614): connected
05-05 23:14:39.529: D/BluetoothReadService(9614): create ConnectedThread
05-05 23:14:39.529: D/BluetoothReadService(9614): setState() 2 -> 3
05-05 23:14:39.539: I/BluetoothReadService(9614): BEGIN mConnectedThread
05-05 23:14:39.549: I/Heart Beat Alarm System(9614): MESSAGE_STATE_CHANGE: 3
05-05 23:14:39.649: I/Heart Beat Alarm System(9614):
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 4
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 5
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 6
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 7
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 8
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 9
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 10
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 11
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 12
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 13
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 14
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 15
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 16
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 17
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 18
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 19
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 20
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 21
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 22
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 23
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 24
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 25
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 26
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 27
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 28
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 29
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 0
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 1
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 2
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 3
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 4
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 5
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 6
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 7
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 8
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 9
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 10
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 11
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 12
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 13
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 14
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 15
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 16
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 17
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 18
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 19
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 20
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 21
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 22
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 23
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 24
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 25
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 26
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 27
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 28
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 29
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 0
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 1
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 2
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 3
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 4
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 5
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 6
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 7
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 8
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 9
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 10
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 11
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 12
05-05 23:14:39.649: I/Heart Beat Alarm System(9614): 13
05-05 23:14:39.659: D/AndroidRuntime(9614): Shutting down VM
05-05 23:14:39.659: W/dalvikvm(9614): threadid=1: thread exiting with uncaught exception (group=0x40018578)
05-05 23:14:39.659: E/AndroidRuntime(9614): FATAL EXCEPTION: main
05-05 23:14:39.659: E/AndroidRuntime(9614): java.lang.NumberFormatException: unable to parse '' as integer
05-05 23:14:39.659: E/AndroidRuntime(9614): at java.lang.Integer.parseInt(Integer.java:362)
05-05 23:14:39.659: E/AndroidRuntime(9614): at java.lang.Integer.parseInt(Integer.java:332)
05-05 23:14:39.659: E/AndroidRuntime(9614): at java.lang.Integer.valueOf(Integer.java:506)
05-05 23:14:39.659: E/AndroidRuntime(9614): at com.android.hbas.FinalSetting$1.handleMessage(FinalSetting.java:355)
05-05 23:14:39.659: E/AndroidRuntime(9614): at android.os.Handler.dispatchMessage(Handler.java:99)
05-05 23:14:39.659: E/AndroidRuntime(9614): at android.os.Looper.loop(Looper.java:130)
05-05 23:14:39.659: E/AndroidRuntime(9614): at android.app.ActivityThread.main(ActivityThread.java:3687)
05-05 23:14:39.659: E/AndroidRuntime(9614): at java.lang.reflect.Method.invokeNative(Native Method)
05-05 23:14:39.659: E/AndroidRuntime(9614): at java.lang.reflect.Method.invoke(Method.java:507)
05-05 23:14:39.659: E/AndroidRuntime(9614): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
05-05 23:14:39.659: E/AndroidRuntime(9614): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
05-05 23:14:39.659: E/AndroidRuntime(9614): at dalvik.system.NativeStart.main(Native Method)
List<Integer> integers = new ArrayList<Integer>();
String [] numbers = readMessage.split("\n");
for (String number : numbers) {
integers.add(Integer.valueOf(number.trim()));
}
try
{
size_of_file=Integer.parseInt(Value);
}
catch(Exception obj)
{
Toast.makeText(this, "Error :"+obj.getMessage(), Toast.LENGTH_LONG).show();
}