Android : TextView 내용을 정수로 변환 한 다음 setText()를 사용하면 오류가 발생합니다.

Question

두 개의 시간 선택기 컨텐츠를 가져 와서 TextViews에 개별적으로 표시하는 코드가 있지만 두 코드의 차이를 계산하여 표시하려면 별도의 TextView 내 응용 프로그램이 충돌합니다.

private TextView mShiftLength; 

private TextView mTimeDisplay; 
private Button mPickTime; 

private TextView mTimeDisplayEnd; 
private Button mPickTimeEnd; 

    private void calcShiftLength() { 
    int mStartTime = Integer.parseInt(mTimeDisplay.getText().toString()); 
    int mEndTime = Integer.parseInt(mTimeDisplayEnd.getText().toString()); 

    int shiftLength = mEndTime - mStartTime; 

    mShiftLength.setText(Integer.toString(shiftLength)); 
} 

    private void updateDisplay() { 
    mTimeDisplay.setText(new StringBuilder().append(pad(mHour)).append(":") 
      .append(pad(mMinute))); 
} 

private void updateDisplayEnd() { 
    mTimeDisplayEnd.setText(new StringBuilder().append(pad(mHour)) 
      .append(":").append(pad(mMinute))); 
} 

편집 : 오류 로그 캣 다음은 코드의 일부입니다. 안드로이드에 대해 많이 알지 못해 죄송합니다.

09-13 03:01:39.744: INFO/ActivityManager(59): Starting activity: 
Intent { act=android.intent.action.MAIN 
cat=[android.intent.category.LAUNCHER] flg=0x10000000 
cmp=MultipleTimePickers.UI/.MultipleTimePickers } 09-13 03:01:39.803: 
DEBUG/AndroidRuntime(331): Shutting down VM 09-13 03:01:39.813: 
DEBUG/dalvikvm(331): Debugger has detached; object registry had 1 
entries 09-13 03:01:40.044: INFO/AndroidRuntime(331): NOTE: attach of 
thread 'Binder Thread #3' failed 09-13 03:01:40.174: 
INFO/ActivityManager(59): Start proc MultipleTimePickers.UI for 
activity MultipleTimePickers.UI/.MultipleTimePickers: pid=338 
uid=10050 gids={} 09-13 03:01:41.364: DEBUG/AndroidRuntime(338): 
Shutting down VM 09-13 03:01:41.364: WARN/dalvikvm(338): threadid=1: 
thread exiting with uncaught exception (group=0x4001d800) 09-13 
03:01:41.393: ERROR/AndroidRuntime(338): FATAL EXCEPTION: main 09-13 
03:01:41.393: ERROR/AndroidRuntime(338): java.lang.RuntimeException: 
Unable to start activity 
ComponentInfo{MultipleTimePickers.UI/MultipleTimePickers.UI.MultipleTimePickers}: 
java.lang.NumberFormatException: unable to parse '03:01' as integer 
09-13 03:01:41.393: ERROR/AndroidRuntime(338):  at 
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) 
09-13 03:01:41.393: ERROR/AndroidRuntime(338):  at 
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 
09-13 03:01:41.393: ERROR/AndroidRuntime(338):  at 
android.app.ActivityThread.access$2300(ActivityThread.java:125) 09-13 
03:01:41.393: ERROR/AndroidRuntime(338):  at 
android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 
09-13 03:01:41.393: ERROR/AndroidRuntime(338):  at 
android.os.Handler.dispatchMessage(Handler.java:99) 09-13 
03:01:41.393: ERROR/AndroidRuntime(338):  at 
android.os.Looper.loop(Looper.java:123) 09-13 03:01:41.393: 
ERROR/AndroidRuntime(338):  at 
android.app.ActivityThread.main(ActivityThread.java:4627) 09-13 
03:01:41.393: ERROR/AndroidRuntime(338):  at 
java.lang.reflect.Method.invokeNative(Native Method) 09-13 
03:01:41.393: ERROR/AndroidRuntime(338):  at 
java.lang.reflect.Method.invoke(Method.java:521) 09-13 03:01:41.393: 
ERROR/AndroidRuntime(338):  at 
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
09-13 03:01:41.393: ERROR/AndroidRuntime(338):  at 
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 09-13 
03:01:41.393: ERROR/AndroidRuntime(338):  at 
dalvik.system.NativeStart.main(Native Method) 09-13 03:01:41.393: 
ERROR/AndroidRuntime(338): Caused by: java.lang.NumberFormatException: 
unable to parse '03:01' as integer 09-13 03:01:41.393: 
ERROR/AndroidRuntime(338):  at 
java.lang.Integer.parse(Integer.java:433) 09-13 03:01:41.393: 
ERROR/AndroidRuntime(338):  at 
java.lang.Integer.parseInt(Integer.java:422) 09-13 03:01:41.393: 
ERROR/AndroidRuntime(338):  at 
java.lang.Integer.parseInt(Integer.java:382) 09-13 03:01:41.393: 
ERROR/AndroidRuntime(338):  at 
MultipleTimePickers.UI.MultipleTimePickers.calcShiftLength(MultipleTimePickers.java:70) 
09-13 03:01:41.393: ERROR/AndroidRuntime(338):  at 
MultipleTimePickers.UI.MultipleTimePickers.onCreate(MultipleTimePickers.java:66) 
09-13 03:01:41.393: ERROR/AndroidRuntime(338):  at 
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
09-13 03:01:41.393: ERROR/AndroidRuntime(338):  at 
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 
09-13 03:01:41.393: ERROR/AndroidRuntime(338):  ... 11 more 09-13 
03:01:41.424: WARN/ActivityManager(59): Force finishing activity 
MultipleTimePickers.UI/.MultipleTimePickers 09-13 03:01:42.035: 
WARN/ActivityManager(59): Activity pause timeout for 
HistoryRecord{44e7de98 MultipleTimePickers.UI/.MultipleTimePickers} 
09-13 03:01:48.883: DEBUG/dalvikvm(182): GC_EXPLICIT freed 100 objects 
/4296 bytes in 163ms 09-13 03:01:53.740: WARN/ActivityManager(59): 
Activity destroy timeout for HistoryRecord{44e7de98 
MultipleTimePickers.UI/.MultipleTimePickers} 09-13 03:01:54.034: 
DEBUG/dalvikvm(269): GC_EXPLICIT freed 249 objects/11840 bytes in 
253ms 

여기에, 모든 사람의 도움을 주셔서 감사합니다 최종 작업 코드입니다 :

private void calcShiftLength() { 
    String[] mStartTime = mTimeDisplay.getText().toString().split(":"); 
    String[] mEndTime = mTimeDisplayEnd.getText().toString().split(":"); 

    int mStartHour = Integer.parseInt(mStartTime[0].toString()); 
    int mStartMinute = Integer.parseInt(mStartTime[1].toString()); 

    int mEndHour = Integer.parseInt(mEndTime[0].toString()); 
    int mEndMinute = Integer.parseInt(mEndTime[1].toString()); 

    int mShiftLengthHour = mEndHour - mStartHour; 
    int mShiftLengthMinute = mEndMinute - mStartMinute; 

    mShiftLength.setText(new StringBuilder().append(pad(mShiftLengthHour)).append(":").append(pad(mShiftLengthMinute))); 
} 

Answer 1

NumberFormatException: unable to parse '03:01' as integer 

는 문자열의 분할 방법을 사용하여 시도하고 정수로 각 문자열을 구문 분석합니다. 그리고 그와 항상 최선을있는 Integer.parseInt

http://download.oracle.com/javase/1.4.2/docs/api/java/lang/String.html#split%28java.lang.String%29

도움이되기를 바랍니다 수행 할 때 NumberFormatException이 잡을 수 있습니다.