在下面的代码中，我在水平List视图中实现了calander。 现在我想滚动到特定的日期，就像我要过去一样 22日期，所以应该自动滚动到第21项。我有 尝试了horizontalListView.scrollTO（int x），但它不起作用。请 帮助我，如果您需要更多关于以下代码的解释，那么让我们 我知道。我已经在此网址上传了全班
答案 0 :(得分：0)
public class MyAppointment extends BaseActivity implements OnClickListener,
DataListener {
private LinearLayout myAppointment;
public LinearLayout llCalTop;
private ListView appointmentsExpandableList;
private ArrayList<String> alist;
private ArrayList<AppointmentDO> childs1, childs2, childs3;
private AppointmentListAdapter adapter;
private HashMap<String, ArrayList<AppointmentDO>> map;
private Vector<RequestDO> vecRequestDOs;
Boolean flag = true;
private View monthview;
private MyAppointment context;
private TextView tvSelMonthYear;
public View selView;
private View oldView;
private LinearLayout llcalBody;
static Calendar calendar;
private Calendar CalNext;
private Calendar CalPrev;
private int month, year;
TextView tvPrevMonthClick, tvNextMonthClick;
private CustomCalendar customCalender;
static String calSelectedDate;
private ImageView ivCalRightArrow, ivCalLeftArrow;
public static int width;
// ----------------------------------Slider calendar
// variables------------------------------------//
private HorizontialListView lvItems;
private CalendarAdapter calendarAdapter;
private TextView tvMonth;
private ImageView ivleft, ivright;
private Calendar cal;
private CommonBL commonBL;
private RequestDO requestDO;
private String appointmentdate = "", appointmenttime = "";
// -------- Selected date intializing with -1 because 0 is the minimum value
// in calander.-----//
int selectedDay = -1, selectedMonth = -1, selectedYear = -1;
// -------------------------------------------------*/*---------------------------------------//
@SuppressLint("NewApi")
@Override
public void initialize() {
myAppointment = (LinearLayout) inflater.inflate(
R.layout.my_appointments_layout, null);
llCalTop = (LinearLayout) myAppointment.findViewById(R.id.llCalTop);
llBody.addView(myAppointment, new LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
appointmentsExpandableList = (ListView) findViewById(R.id.appointmentsExpandableList);
ivHeaderRight = (ImageView) findViewById(R.id.ivHeaderRight);
// initLists();
vecRequestDOs = new MyAppointmentsDA()
.getAllInitiativesById("31-01-2015");
adapter = new AppointmentListAdapter(MyAppointment.this, vecRequestDOs);
header.setText("My Appointment");
appointmentsExpandableList.setAdapter(adapter);
ivHeaderRight.setVisibility(View.VISIBLE);
ivHeaderRight.setImageResource(R.drawable.cal);
ivHeaderRight.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (flag) {
ivHeaderRight.setImageResource(R.drawable.list);
flag = false;
oldView = findViewById(R.id.llCalTop);
//
show();
} else {
ivHeaderRight.setImageResource(R.drawable.cal);
flag = true;
oldView = (LinearLayout) inflater.inflate(
R.layout.my_appointments_layout, null);
llCalTop.setLayoutParams(new LinearLayout.LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
llCalTop.removeAllViews();
selectedDay = CustomCalendar.todayDate;
selectedMonth = customCalender.month;
selectedYear = customCalender.year;
llCalTop.addView(oldView, new LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
sliderCalendar();
}
}
});
sliderCalendar();
}
@SuppressLint("NewApi")
public void show() {
monthview = inflater.inflate(R.layout.monthview_cal, null);
monthview.setLayoutParams(new LinearLayout.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
llCalTop.removeAllViews();
llCalTop.addView(monthview, new LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
context = MyAppointment.this;
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width = size.x;
CustomCalendar.CALENDER_CELL_WIDTH = width / 7;
tvSelMonthYear = (TextView) findViewById(R.id.tvSelMonthYear);
llcalBody = (LinearLayout) findViewById(R.id.llcalBody);
tvPrevMonthClick = (TextView) findViewById(R.id.prevMonth);
tvNextMonthClick = (TextView) findViewById(R.id.nextMonth);
ivCalLeftArrow = (ImageView) findViewById(R.id.ivCalLeftArrow);
ivCalRightArrow = (ImageView) findViewById(R.id.ivCalRightArrow);
tvSelMonthYear.setTextSize(16);
calendar = Calendar.getInstance();
if (selectedDay != -1 && selectedMonth != -1 && selectedYear != -1) {
calendar.set(selectedYear, selectedMonth, selectedDay);
}
month = calendar.get(Calendar.MONTH);
year = calendar.get(Calendar.YEAR);
CalPrev = Calendar.getInstance();
CalPrev.add(Calendar.MONTH, -1);
CalNext = Calendar.getInstance();
CalNext.add(Calendar.MONTH, 1);
tvSelMonthYear.setText(CalendarUtility.getMonth(month) + " "
+ calendar.get(Calendar.YEAR));
showCalender(month, year);
ivCalLeftArrow.setOnClickListener(this);
ivCalRightArrow.setOnClickListener(this);
}
@Override
public void onClick(View v) {
if (v.getId() == R.id.ivCalLeftArrow) {
calendar.add(Calendar.MONTH, -1);
tvSelMonthYear.setText(CalendarUtility.getMonth(calendar
.get(Calendar.MONTH)) + " " + calendar.get(Calendar.YEAR));
setMonthText();
showCalender(calendar.get(Calendar.MONTH),
calendar.get(Calendar.YEAR));
} else if (v.getId() == R.id.ivCalRightArrow) {
calendar.add(Calendar.MONTH, +1);
tvSelMonthYear.setText(CalendarUtility.getMonth(calendar
.get(Calendar.MONTH)) + " " + calendar.get(Calendar.YEAR));
showCalender(calendar.get(Calendar.MONTH),
calendar.get(Calendar.YEAR));
setMonthText();
}
}
public void showCalender(int month, int year) {
llcalBody.removeAllViews();
customCalender = new CustomCalendar(context, month, year);
llcalBody.addView(customCalender.makeCalendar(),
LayoutParams.MATCH_PARENT);
}
public void setMonthText() {
int tempCurrentMonth = calendar.get(Calendar.MONTH);
if (tempCurrentMonth > 0 && tempCurrentMonth < 11) {
tvPrevMonthClick.setText(CalendarUtility
.getMonth(tempCurrentMonth - 1));
tvNextMonthClick.setText(CalendarUtility
.getMonth(tempCurrentMonth + 1));
} else if (tempCurrentMonth == 0) {
tvPrevMonthClick.setText(CalendarUtility.getMonth(11));
tvNextMonthClick.setText(CalendarUtility.getMonth(1));
} else if (tempCurrentMonth == 11) {
tvPrevMonthClick.setText(CalendarUtility.getMonth(10));
tvNextMonthClick.setText(CalendarUtility.getMonth(0));
}
}
private void initLists() {
// alist = new ArrayList<String>();
// childs1 = new ArrayList<AppointmentDO>();
// childs2 = new ArrayList<AppointmentDO>();
// childs3 = new ArrayList<AppointmentDO>();
// alist.add("WED, JAN 28");
// // alist.add("THU, JAN 29");
// // alist.add("FRI, JAN 30");
// childs1.add(new AppointmentDO("R.MOHAN REDDY", "address", "09:00 AM",
// "40 minutes"));
// // childs1.add(new AppointmentDO("KIRAN KATTA", "address",
// "10:00 AM",
// // "40 minutes"));
// // childs1.add(new AppointmentDO("R.MOHAN REDDY", "address",
// "11:00 AM",
// // "40 minutes"));
// childs2.add(new AppointmentDO("KIRAN KATTA", "address", "12:00 PM",
// "40 minutes"));
// childs2.add(new AppointmentDO("R.MOHAN REDDY", "address", "10:30 AM",
// "40 minutes"));
// childs3.add(new AppointmentDO("KIRAN KATTA", "address", "10:45 AM",
// "40 minutes"));
// map = new HashMap<String, ArrayList<AppointmentDO>>();
// map.put(alist.get(0), childs1);
// map.put(alist.get(1), childs2);
// map.put(alist.get(2), childs3);
}
protected void sliderCalendar() {
// ---------------------------------Slider Calendar Implementation
// -------------------------------------------//
llCalTop = (LinearLayout) myAppointment.findViewById(R.id.llCalTop);
lvItems = (HorizontialListView) myAppointment
.findViewById(R.id.lvItems);
tvMonth = (TextView) myAppointment.findViewById(R.id.tvMonth);
ivleft = (ImageView) myAppointment.findViewById(R.id.ivleft);
ivright = (ImageView) myAppointment.findViewById(R.id.ivright);
commonBL = new CommonBL(MyAppointment.this, MyAppointment.this);
cal = Calendar.getInstance();
if (selectedDay != -1 && selectedMonth != -1 && selectedYear != -1) {
cal.set(selectedYear, selectedMonth, selectedDay);
}
if (lvItems.getAdapter() == null) {
calendarAdapter = new CalendarAdapter(MyAppointment.this, cal);
calendarAdapter.setSelectedPosition(selectedDay - 1);
lvItems.setAdapter(calendarAdapter);
tvMonth.setText(CalendarUtils.getMonthFromNumber(cal
.get(Calendar.MONTH) + 1));
// /// -----------------Trying to scroll at selected date ---------------------//
// ---------------/////
lvItems.scrollTo((selectedDay - 1) * (60)
+ (lvItems.getChildCount() - (selectedDay - 1)));
} else {
calendarAdapter.notifyDataSetChanged();
}
// --------------------**--------------------------------------//
lvItems.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View view,
int position, long arg3) {
appointmentdate = "";
calendarAdapter.setSelectedPosition(position);
// ----------------------**----------------//
selectedDay = position;
selectedMonth = cal.get(Calendar.MONTH);
selectedYear = cal.get(Calendar.YEAR);
Toast.makeText(getApplicationContext(),
selectedDay + "/" + selectedMonth + "/" + selectedYear,
Toast.LENGTH_SHORT).show();
LogUtils.errorLog(
"Clicked Date",
(position + 1)
+ ""
+ CalendarUtils.getMonthFromNumber(cal
.get(Calendar.MONTH) + 1) + ","
+ cal.get(Calendar.YEAR));
if (cal.get(Calendar.MONTH) + 1 < 10)
appointmentdate = (position + 1) + "-0"
+ (cal.get(Calendar.MONTH) + 1) + "-"
+ cal.get(Calendar.YEAR);
else
appointmentdate = (position + 1) + "-"
+ (cal.get(Calendar.MONTH) + 1) + "-"
+ cal.get(Calendar.YEAR);
}
});
ivleft.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
cal.add(Calendar.MONTH, -1);
tvMonth.setText(CalendarUtils.getMonthFromNumber(cal
.get(Calendar.MONTH) + 1)
+ " "
+ cal.get(Calendar.YEAR));
calendarAdapter.refresh(cal);
calendarAdapter.setSelectedPosition(0);
}
});
ivright.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
cal.add(Calendar.MONTH, 1);
tvMonth.setText(CalendarUtils.getMonthFromNumber(cal
.get(Calendar.MONTH) + 1)
+ " "
+ cal.get(Calendar.YEAR));
calendarAdapter.refresh(cal);
calendarAdapter.setSelectedPosition(0);
}
});
// --------------------------------------/**/--------------------------------------------------//
}
private class CalendarAdapter extends BaseAdapter {
private String week[] = { "Su", "M", "T", "W", "Th", "F", "S" };
private Context context;
private int seletedPosition;
private Calendar cal;
public CalendarAdapter(Context context, Calendar cal) {
this.cal = cal;
this.context = context;
}
@Override
public int getCount() {
return cal.getActualMaximum(Calendar.DAY_OF_MONTH);
}
@Override
public Object getItem(int position) {
return position;
}
public void setSelectedPosition(int seletedPosition) {
this.seletedPosition = seletedPosition;
notifyDataSetChanged();
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder = new ViewHolder();
if (convertView == null) {
convertView = LayoutInflater.from(context).inflate(
R.layout.calendar_cell, null);
viewHolder.tvweek = (TextView) convertView
.findViewById(R.id.tvweek);
viewHolder.tvday = (TextView) convertView
.findViewById(R.id.tvday);
convertView.setTag(viewHolder);
} else
viewHolder = (ViewHolder) convertView.getTag();
viewHolder.tvday.setText((position + 1) + "");
cal.set(Calendar.DAY_OF_MONTH, position + 1);
viewHolder.tvweek
.setText(week[cal.get(Calendar.DAY_OF_WEEK) - 1 % 7]);
if (seletedPosition == position) {
viewHolder.tvday.setBackgroundResource(R.drawable.date_hover);
viewHolder.tvday.setTextColor(getResources().getColor(
R.color.white_color));
} else {
viewHolder.tvday.setBackgroundResource(0);
viewHolder.tvday.setTextColor(getResources().getColor(
R.color.date_color));
}
return convertView;
}
public void refresh(Calendar cal) {
this.cal = cal;
notifyDataSetChanged();
}
}
private static class ViewHolder {
public TextView tvweek, tvday;
}
@Override
public void dataRetreived(Response data) {
if (data.data != null) {
if (data.method == ServiceMethods.WS_INSERT_REQUEST) {
requestDO = (RequestDO) data.data;
if (requestDO != null) {
LogUtils.errorLog("Data Came", requestDO.Reason);
}
}
}
}
}
答案 1 :(得分：0)
尝试listView.setSelection( index );