无法解析'作为Android的整数 [英] unable to parse ' ' as integer in android
本文介绍了无法解析'作为Android的整数的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我已经看了这么多文章，但仍然不明白这一点。
I have read so many articles but still don't get it.
我有一个串行数据是一个字符串类型，我想将其与一个整数进行比较。
I have a serial data which is a String type and i want to compare it with an integer.
这是读串行数据code：
This is the read serial data code:
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);
String [] numbers = readMessage.split("\n");
int [] intNumber = new int[numbers.length];
//List<Integer> integers = new ArrayList<Integer>();
for (String number : numbers) {
//integers.add(Integer.valueOf(number.trim()));
for (i=0;i<numbers.length;i++){
intNumber[i] = Integer.valueOf(number.trim());
if (intNumber[i]<0 || intNumber[i]>95){
//Some Actions
}
}
}
break;
而LogCat中显示：
And the LogCat shows:
05-06 17:28:06.919: D/BluetoothReadService(15090): connected
05-06 17:28:06.919: D/BluetoothReadService(15090): create ConnectedThread
05-06 17:28:06.929: D/BluetoothReadService(15090): setState() 2 -> 3
05-06 17:28:06.949: I/BluetoothReadService(15090): BEGIN mConnectedThread
05-06 17:28:06.969: I/HBAS(15090): MESSAGE_STATE_CHANGE: 3
05-06 17:28:07.079: I/HBAS(15090): 24
05-06 17:28:07.079: I/HBAS(15090): 25
05-06 17:28:07.079: I/HBAS(15090): 26
05-06 17:28:07.079: I/HBAS(15090): 27
05-06 17:28:07.079: I/HBAS(15090): 28
05-06 17:28:07.079: I/HBAS(15090): 29
05-06 17:28:07.079: I/HBAS(15090): 0
05-06 17:28:07.079: I/HBAS(15090): 1
05-06 17:28:07.079: I/HBAS(15090): 2
05-06 17:28:07.079: I/HBAS(15090): 3
05-06 17:28:07.079: I/HBAS(15090): 4
05-06 17:28:07.079: I/HBAS(15090): 5
05-06 17:28:07.079: I/HBAS(15090): 6
05-06 17:28:07.079: I/HBAS(15090): 7
05-06 17:28:07.079: I/HBAS(15090): 8
05-06 17:28:07.079: I/HBAS(15090): 9
05-06 17:28:07.079: I/HBAS(15090): 10
05-06 17:28:07.079: I/HBAS(15090): 11
05-06 17:28:07.079: I/HBAS(15090): 12
05-06 17:28:07.079: I/HBAS(15090): 13
05-06 17:28:07.079: I/HBAS(15090): 14
05-06 17:28:07.079: I/HBAS(15090): 15
05-06 17:28:07.079: I/HBAS(15090): 16
05-06 17:28:07.079: I/HBAS(15090): 17
05-06 17:28:07.079: I/HBAS(15090): 18
05-06 17:28:07.079: I/HBAS(15090): 19
05-06 17:28:07.079: I/HBAS(15090): 20
05-06 17:28:07.079: I/HBAS(15090): 21
05-06 17:28:07.079: I/HBAS(15090): 22
05-06 17:28:07.079: I/HBAS(15090): 23
05-06 17:28:07.079: I/HBAS(15090): 24
05-06 17:28:07.079: I/HBAS(15090): 25
05-06 17:28:07.079: I/HBAS(15090): 26
05-06 17:28:07.079: I/HBAS(15090): 27
05-06 17:28:07.079: I/HBAS(15090): 28
05-06 17:28:07.079: I/HBAS(15090): 29
05-06 17:28:07.079: I/HBAS(15090): 0
05-06 17:28:07.079: I/HBAS(15090): 1
05-06 17:28:07.079: I/HBAS(15090): 2
05-06 17:28:07.079: I/HBAS(15090): 3
05-06 17:28:07.079: I/HBAS(15090): 4
05-06 17:28:07.079: I/HBAS(15090): 5
05-06 17:28:07.079: I/HBAS(15090): 6
05-06 17:28:07.079: I/HBAS(15090): 7
05-06 17:28:07.079: I/HBAS(15090): 8
05-06 17:28:07.079: I/HBAS(15090): 9
05-06 17:28:07.079: I/HBAS(15090): 10
05-06 17:28:07.079: I/HBAS(15090): 11
05-06 17:28:07.079: I/HBAS(15090): 12
05-06 17:28:07.079: I/HBAS(15090): 13
05-06 17:28:07.079: I/HBAS(15090): 14
05-06 17:28:07.079: I/HBAS(15090): 15
05-06 17:28:07.079: I/HBAS(15090): 16
05-06 17:28:07.079: I/HBAS(15090): 17
05-06 17:28:07.079: I/HBAS(15090): 18
05-06 17:28:07.079: I/HBAS(15090): 19
05-06 17:28:07.079: I/HBAS(15090): 20
05-06 17:28:07.079: I/HBAS(15090): 21
05-06 17:28:07.079: I/HBAS(15090): 22
05-06 17:28:07.079: I/HBAS(15090): 23
05-06 17:28:07.079: I/HBAS(15090): 24
05-06 17:28:07.079: I/HBAS(15090): 25
05-06 17:28:07.079: I/HBAS(15090): 26
05-06 17:28:07.079: I/HBAS(15090): 27
05-06 17:28:07.079: I/HBAS(15090): 28
05-06 17:28:07.079: I/HBAS(15090): 29
05-06 17:28:07.079: I/HBAS(15090): 0
05-06 17:28:07.079: I/HBAS(15090): 1
05-06 17:28:07.079: I/HBAS(15090): 2
05-06 17:28:07.079: I/HBAS(15090): 3
05-06 17:28:07.079: I/HBAS(15090): 4
05-06 17:28:07.079: I/HBAS(15090): 5
05-06 17:28:07.079: I/HBAS(15090): 6
05-06 17:28:07.079: I/HBAS(15090): 7
05-06 17:28:07.079: I/HBAS(15090): 8
05-06 17:28:07.079: I/HBAS(15090): 9
05-06 17:28:07.079: I/HBAS(15090): 10
05-06 17:28:07.079: I/HBAS(15090): 11
05-06 17:28:07.079: I/HBAS(15090): 12
05-06 17:28:07.079: I/HBAS(15090): 13
05-06 17:28:07.079: I/HBAS(15090): 14
05-06 17:28:07.079: I/HBAS(15090): 15
05-06 17:28:07.079: I/HBAS(15090): 16
05-06 17:28:07.079: I/HBAS(15090): 17
05-06 17:28:07.079: I/HBAS(15090): 18
05-06 17:28:07.079: I/HBAS(15090): 19
05-06 17:28:07.079: I/HBAS(15090): 20
05-06 17:28:07.079: I/HBAS(15090): 21
05-06 17:28:07.079: I/HBAS(15090): 22
05-06 17:28:07.079: I/HBAS(15090): 23
05-06 17:28:07.079: I/HBAS(15090): 24
05-06 17:28:07.079: I/HBAS(15090): 25
05-06 17:28:07.079: I/HBAS(15090): 26
05-06 17:28:07.079: I/HBAS(15090): 27
05-06 17:28:07.079: I/HBAS(15090): 28
05-06 17:28:07.079: I/HBAS(15090): 29
05-06 17:28:07.079: I/HBAS(15090): 0
05-06 17:28:07.079: I/HBAS(15090): 1
05-06 17:28:07.079: I/HBAS(15090): 2
05-06 17:28:07.079: I/HBAS(15090): 3
05-06 17:28:07.079: I/HBAS(15090): 4
05-06 17:28:07.079: I/HBAS(15090): 5
05-06 17:28:07.079: I/HBAS(15090): 6
05-06 17:28:07.079: I/HBAS(15090): 7
05-06 17:28:07.079: I/HBAS(15090): 8
05-06 17:28:07.079: I/HBAS(15090): 9
05-06 17:28:07.079: I/HBAS(15090): 10
05-06 17:28:07.079: I/HBAS(15090): 11
05-06 17:28:07.079: I/HBAS(15090): 12
05-06 17:28:07.969: I/HBAS(15090): 1
05-06 17:28:08.029: I/HBAS(15090): 3
05-06 17:28:09.019: I/HBAS(15090): 14
05-06 17:28:09.979: I/HBAS(15090): 1
05-06 17:28:10.029: I/HBAS(15090): 5
05-06 17:28:10.989: I/HBAS(15090): 16
05-06 17:28:12.009: I/HBAS(15090): 17
05-06 17:28:12.999: I/HBAS(15090): 18
05-06 17:28:13.999: I/HBAS(15090): 19
05-06 17:28:14.999: I/HBAS(15090): 20
05-06 17:28:16.009: I/HBAS(15090): 21
05-06 17:28:17.009: I/HBAS(15090): 22
05-06 17:28:18.009: I/HBAS(15090): 23
05-06 17:28:19.019: I/HBAS(15090): 24
05-06 17:28:20.019: I/HBAS(15090): 25
05-06 17:28:21.029: I/HBAS(15090): 26
05-06 17:28:22.029: I/HBAS(15090): 27
05-06 17:28:23.029: I/HBAS(15090): 28
05-06 17:28:24.039: I/HBAS(15090): 29
05-06 17:28:25.039: I/HBAS(15090): 0
05-06 17:28:26.029: I/HBAS(15090): 1
05-06 17:28:26.069: I/HBAS(15090):
05-06 17:28:26.069: D/AndroidRuntime(15090): Shutting down VM
05-06 17:28:26.069: W/dalvikvm(15090): threadid=1: thread exiting with uncaught exception (group=0x40018578)
05-06 17:28:26.079: E/AndroidRuntime(15090): FATAL EXCEPTION: main
05-06 17:28:26.079: E/AndroidRuntime(15090): java.lang.NumberFormatException: unable to parse '' as integer
05-06 17:28:26.079: E/AndroidRuntime(15090): at java.lang.Integer.parseInt(Integer.java:362)
05-06 17:28:26.079: E/AndroidRuntime(15090): at java.lang.Integer.parseInt(Integer.java:332)
05-06 17:28:26.079: E/AndroidRuntime(15090): at java.lang.Integer.valueOf(Integer.java:506)
05-06 17:28:26.079: E/AndroidRuntime(15090): at com.android.hbas.FinalSetting$1.handleMessage(FinalSetting.java:362)
05-06 17:28:26.079: E/AndroidRuntime(15090): at android.os.Handler.dispatchMessage(Handler.java:99)
05-06 17:28:26.079: E/AndroidRuntime(15090): at android.os.Looper.loop(Looper.java:130)
05-06 17:28:26.079: E/AndroidRuntime(15090): at android.app.ActivityThread.main(ActivityThread.java:3687)
05-06 17:28:26.079: E/AndroidRuntime(15090): at java.lang.reflect.Method.invokeNative(Native Method)
05-06 17:28:26.079: E/AndroidRuntime(15090): at java.lang.reflect.Method.invoke(Method.java:507)
05-06 17:28:26.079: E/AndroidRuntime(15090): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
05-06 17:28:26.079: E/AndroidRuntime(15090): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
05-06 17:28:26.079: E/AndroidRuntime(15090): at dalvik.system.NativeStart.main(Native Method)
在开始它的工作，但在一段时间内它FC因为''的事情。
因此，任何解决方案？
谢谢你的建议。
At start it worked but at some time it FC because of ' ' thing. So any solution??? Thanks for the advice..
推荐答案
检查你的字符串仅
if(str.trim().length>0){
try{
int i =Integer.parseInt(str);
}catch(NumberFormatException ne){
System.out.println("could not parse :: " +ne);
}
}
这篇关于无法解析'作为Android的整数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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