我有以下代码。在这个我有动态生成的按钮。当单击按钮时,它会显示时间选择器。我的问题是设置单击按钮的时间,但它设置了最后一个按钮的文本如何设置单击按钮的值...
public void addButton(int value) {
list.removeAllViews();
for (i=0 ; i < value; i++) {
button = new Button(this);
button.setText("Add Time");
button.setId(i);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Calendar mCalendar = Calendar.getInstance();
new TimePickerDialog(MedInfo.this, onTimeListener, mCalendar
.get(Calendar.HOUR_OF_DAY), mCalendar.get(Calendar.MINUTE), false)
.show();
btn_cnt = v.getId();
Toast.makeText(getApplicationContext(), ""+btn_cnt, Toast.LENGTH_SHORT).show();
}
});
list.addView(button);
}
}
TimePickerDialog.OnTimeSetListener onTimeListener = new OnTimeSetListener() {
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
String AM_PM;
Calendar mCalendar = Calendar.getInstance();
if (hourOfDay < 12) {
AM_PM = "AM";
} else {
AM_PM = "PM";
}
long start_time = DateTimeUtils.getTimeInMillis(hourOfDay, minute, 0);
Calendar calendar = Calendar.getInstance();
long mseconds = DateTimeUtils.getFirstMillis(calendar.get(Calendar.DATE),
calendar.get(Calendar.MONTH), calendar.get(Calendar.YEAR));
time = start_time + mseconds;
button.settext(time);
mCalendar.set(Calendar.HOUR, hourOfDay);
mCalendar.set(Calendar.MINUTE, minute);
}
};
任何帮助将是可观的...
编辑 :
错误日志:
10-29 15:07:32.478: E/AndroidRuntime(6401): FATAL EXCEPTION: main
10-29 15:07:32.478: E/AndroidRuntime(6401): java.lang.NullPointerException
10-29 15:07:32.478: E/AndroidRuntime(6401): at com.example.medicationreminder.MedInfo$MyOnTimeSetListenter.onTimeSet(MedInfo.java:237)
10-29 15:07:32.478: E/AndroidRuntime(6401): at android.app.TimePickerDialog.tryNotifyTimeSet(TimePickerDialog.java:130)
10-29 15:07:32.478: E/AndroidRuntime(6401): at android.app.TimePickerDialog.onClick(TimePickerDialog.java:115)