我需要根据事件日期显示和隐藏复选框....我有3个复选框在事件日，前2天，前一周在我的代码中调用....添加事件，添加时日期本身应该计算间隔。根据当前日期和事件日期之间的间隔，我需要更改复选框的可见性。例如，如果间隔是2天....我只需要显示事件日和复选框前2天....为此我需要计算interval.where我需要添加复选框的代码....请帮我找出代码...
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_occasion);
context = getApplicationContext();
seekBar_startTime = (SeekBar) findViewById(R.id.seekBar1);
seekBar_startTime.setProgress(0);
seekBar_startTime.setMax(1440); //minutes in 24 hours(24*60)
seekBar_startTime.setProgress(1);
textView_startTime = (TextView) findViewById(R.id.textView1);
seekBar_endTime = (SeekBar) findViewById(R.id.seekBar2);
seekBar_endTime.setProgress(0);
seekBar_endTime.setMax(1440); //minutes in 24 hours(24*60)
seekBar_endTime.setProgress(1);
textView_endTime = (TextView) findViewById(R.id.textView2);
btn_Date = (Button) findViewById(R.id.event_date_button);
event_Place = (TextView) findViewById(R.id.Enter_Place);
custom_Text = (TextView) findViewById(R.id.Custom_Text);
checkBox_onEventDay=(CheckBox) findViewById(R.id.cb_onEventDay);
checkBox_2DaysBefore=(CheckBox) findViewById(R.id.cb_2DaysBefore);
checkBox_aWeekBefore=(CheckBox) findViewById(R.id.cb_aWeekBefore);
btn_create_button = (Button) findViewById(R.id.create_button);
sharedpreferences = context.getSharedPreferences(Constants.SHARED_PREFERENCE_NAME, Context.MODE_PRIVATE);
dbHelper = new DatabaseHelper(context);
btn_Date.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
DatePickerFragment newFragment = new DatePickerFragment();
newFragment.show(getFragmentManager(), "Occasion Date");
//Calendar eventDay = Calendar.getInstance();
try {
String eventDate = btn_Date.getText().toString();
DateFormat date = new SimpleDateFormat("dd-M-yyyy");
Date date1 = date.parse(eventDate);
DateFormat convertDate = new SimpleDateFormat(" yyyy-MM-dd hh:mm:ss");
eventDate = convertDate.format(date1);
eventMO.setEventDate(eventDate);
Date currentDate = new Date();
long diff = date1.getTime()-currentDate.getTime();
long seconds = diff / 1000;
long minutes = seconds / 60;
long hours = minutes / 60;
long daysBefore = hours / 24;
hours%=24;
} catch (ParseException e) {
e.printStackTrace();
}
if (daysBefore >= 7) {
if ((daysBefore == 7 && hours > 9) != true) {
checkBox_aWeekBefore.setVisibility(View.VISIBLE);
}
checkBox_2DaysBefore.setVisibility(View.VISIBLE);
checkBox_onEventDay.setVisibility(View.VISIBLE);
}
else if (daysBefore >= 2) {
if ((daysBefore == 2 && hours > 9) != true) {
checkBox_aWeekBefore.setVisibility(View.INVISIBLE);
//checkBox_2DaysBefore.setVisibility(View.VISIBLE);
}
//checkBox_onEventDay.setVisibility(View.VISIBLE);
}
else if (daysBefore >= 1) {
checkBox_aWeekBefore.setVisibility(View.INVISIBLE);
checkBox_2DaysBefore.setVisibility(View.INVISIBLE);
//checkBox_onEventDay.setVisibility(View.VISIBLE);
}
}
});
/eventid get from OccasionFragment here
Bundle bundle = this.getIntent().getExtras();
if (bundle != null) {
Long eventId1 = bundle.getLong("EventID");
eventId2 = eventId1;
String eventName = bundle.getString("EventName");
custom_Text.setText(eventName);
String eventPlace = bundle.getString("EventPlace");
event_Place.setText(eventPlace);
String eventDate = bundle.getString("EventDate");
try {
//String eventDate = bundle.getString("EventDate");
//time string removed from date here
String result = eventDate.split(" ")[0];
DateFormat sourceDate = new SimpleDateFormat("yyyy-MM-dd");
// parse the date string into Date object
Date date = sourceDate.parse(result);
DateFormat convertDate = new SimpleDateFormat("dd-M-yyyy");
// format the date into another format
result = convertDate.format(date);
btn_Date.setText(result);
} catch (ParseException e) {
e.printStackTrace();
}
//Event Start Time and Event End Time string added before the time here
String eventStart = bundle.getString("EventStart");
textView_startTime.setText("Event Start Time :" + eventStart);
String eventEnd = bundle.getString("EventEnd");
textView_endTime.setText("Event End Time :" + eventEnd);
}
btn_create_button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
doOnCLickAndOnOptionSelected();
}
});
}
@SuppressLint("ValidFragment")
public class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current date as the default date in the picker
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
// Create a new instance of DatePickerDialog and return it
return new DatePickerDialog(getActivity(), this, year, month, day);
}
public void onDateSet(DatePicker view, int year, int month, int day) {
Date = new StringBuilder().append(year).append("-").append(month + 1).append("-").append(day).append(" ").toString();
btn_Date.setText(new StringBuilder().append(day).append("-").append(month + 1).append("-").append(year).append(" ").toString());
}
}
}
我在点击监听器上的btn_date中尝试了这个代码，以计算添加日期时的间隔...但它不起作用....我需要在添加日期本身时可见和不可见..请帮帮我......
添加事件包括事件名称，地点，日期，开始时间，结束时间......此后我只有3个复选框。然后保存按钮以保存事件
答案 0 :(得分：1)
删除小时声明，daysBefore ... 像这样使用......这就是问题
hours = minutes / 60;
daysBefore = hours / 24;
你的计算是错误的，以获得剩余的日子。
diff = event_date - current_date
long diff = date1.getTime() - currentDate.getTime() ;
try {
String eventDate = btn_Date.getText().toString();
DateFormat date = new SimpleDateFormat("dd-M-yyyy");
Date date1 = date.parse(eventDate);
DateFormat convertDate = new SimpleDateFormat(" yyyy-MM-dd hh:mm:ss");
eventDate = convertDate.format(date1);
eventMO.setEventDate(eventDate);
Date currentDate = new Date();
//This is remainder kind of app right
//long diff = currentDate.getTime() - date1.getTime();
//days_remaining - current
long diff = date1.getTime() - currentDate.getTime() ;
long seconds = diff / 1000;
long minutes = seconds / 60;
hours = minutes / 60;
daysBefore = hours / 24;
//you need get remaining hours
hours %= 24;
if (daysBefore >= 7) {
if ((daysBefore == 7 && hours > 9) != true) {
checkBox_aWeekBefore.setVisibility(View.VISIBLE);
}
checkBox_2DaysBefore.setVisibility(View.VISIBLE);
checkBox_onEventDay.setVisibility(View.VISIBLE);
}
else if (daysBefore >= 2) {
if ((daysBefore == 2 && hours > 9) != true) {
checkBox_aWeekBefore.setVisibility(View.INVISIBLE);
//checkBox_2DaysBefore.setVisibility(View.VISIBLE);
}
//checkBox_onEventDay.setVisibility(View.VISIBLE);
}
else if (daysBefore >= 1) {
checkBox_aWeekBefore.setVisibility(View.INVISIBLE);
checkBox_2DaysBefore.setVisibility(View.INVISIBLE);
//checkBox_onEventDay.setVisibility(View.VISIBLE);
}
} catch (ParseException e) {
e.printStackTrace();
}