时间选择器无法正常工作并崩溃

问题描述

我正在尝试在“编辑文本”中打开“时间选择器”对话框。虽然对话框成功打开，但是当我单击“确定”以设置时间时，它会抛出 Exception 并崩溃。

错误如下：

2020-10-06 10:16:28.972 1821-3134/? E/InputReader: isBtnTouch is true need to clear slots.2020-10-06 10:16:29.029 11973-11973/com.example.visitortracker E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.visitortracker,PID: 11973
java.lang.IllegalArgumentException: Invalid era
    at java.util.GregorianCalendar.computeTime(GregorianCalendar.java:2686)
    at java.util.Calendar.updateTime(Calendar.java:3402)
    at java.util.Calendar.getTimeInMillis(Calendar.java:1761)
    at java.util.Calendar.getTime(Calendar.java:1734)
    at com.example.visitortracker.VisitorEntryActivity$1.onTimeSet(VisitorEntryActivity.java:102)
    at android.app.TimePickerDialog.onClick(TimePickerDialog.java:174)
    at android.app.TimePickerDialog$1.onClick(TimePickerDialog.java:156)

我的代码如下

@Override
public void onClick(View view) {
    switch (view.getId()) {
        case R.id.edt_timeIn:
            openTimePicker();
            break;
    }
}


private void openTimePicker() {
    calendar = Calendar.getInstance();
    calendar.get(Calendar.HOUR_OF_DAY);
    calendar.get(Calendar.MINUTE);
    TimePickerDialog dialog = new TimePickerDialog(VisitorEntryActivity.this,new TimePickerDialog.OnTimeSetListener() {
        @Override
        public void onTimeSet(TimePicker timePicker,int selected_hour,int selected_minute) {
            String am_pm = "am";
            if (selected_hour > 12) {
                selected_hour = selected_hour - 12;
                am_pm = "pm";
            }
            calendar.set(hour,selected_hour);
            calendar.set(minute,selected_minute);
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat("HH:mm",Locale.getDefault());
            edt_timeIn.setText(simpleDateFormat.format(calendar.getTime()) + " " + am_pm);
        }
    },hour,minute,false);
    dialog.show();
}

任何帮助都是可以接受的。

提前谢谢！

解决方法

更改

calendar.set(hour,selected_hour);至calendar.set(Calendar.HOUR_OF_DAY,selected_hour);

和

calendar.set(minute,selected_minute);至calendar.set(Calendar.MINUTE,selected_minute);