在GridView中获取项目
您好我尝试在gridview中制作日历。
我希望每次用户点击gricel时都会标记gricel。
我的问题是，我无法取消之前选择的gricel未加标记。
我尝试使用setOnItemClickListener作为我的gridview，但它的doest工作，请参阅我的问题：
GridView setOnItemClickListener does not respond to clicks
所以我尝试将setOnClickListener用于我的adpater中的视图。
它正在努力让它们被点击但我无法更新我的适配器中的任何视图。
要更新最后一个视图，我有一个虚拟Button和Drawable对象。
我附上了gridview的图片。我希望每次只标记一个gricel
这是我的适配器代码：
public class GridCellAdapter extends BaseAdapter implements OnClickListener{
private static final String tag = "GridCellAdapter";
private final Context _context;
private final List<String> list;
private static final int DAY_OFFSET = 1;
private final String[] weekdays = new String[] { "Sun", "Mon", "Tue",
"Wed", "Thu", "Fri", "Sat" };
private final String[] months = { "January", "February", "March",
"April", "May", "June", "July", "August", "September",
"October", "November", "December" };
private final int[] daysOfMonth = { 31, 28, 31, 30, 31, 30, 31, 31, 30,
31, 30, 31 };
private final int month, year;
private int daysInMonth, prevMonthDays;
private int currentDayOfMonth;
private int currentWeekDay;
private Button gridcell;
// Days in Current Month
public GridCellAdapter(Context context, int textViewResourceId,
int month, int year) {
super();
this._context = context;
this.list = new ArrayList<String>();
this.month = month;
this.year = year;
//Log.d(tag, "==> Passed in Date FOR Month: " + month + " "
// + "Year: " + year);
Calendar calendar = Calendar.getInstance(Locale.ENGLISH);
setCurrentDayOfMonth(calendar.get(Calendar.DAY_OF_MONTH));
setCurrentWeekDay(calendar.get(Calendar.DAY_OF_WEEK));
//Log.d(tag, "New Calendar:= " + calendar.getTime().toString());
//Log.d(tag, "CurrentDayOfWeek :" + getCurrentWeekDay());
//Log.d(tag, "CurrentDayOfMonth :" + getCurrentDayOfMonth());
// Print Month
printMonth(month, year);
}
private String getMonthAsString(int i) {
return months[i];
}
private String getWeekDayAsString(int i) {
return weekdays[i];
}
private int getNumberOfDaysOfMonth(int i) {
return daysOfMonth[i];
}
public String getItem(int position) {
return list.get(position);
}
public int getCount() {
return list.size();
}
/**
* Prints Month
*
* @param mm
* @param yy
*/
private void printMonth(int mm, int yy) {
//Log.d(tag, "==> printMonth: mm: " + mm + " " + "yy: " + yy);
// The number of days to leave blank at
// the start of this month.
int trailingSpaces = 0;
int daysInPrevMonth = 0;
int prevMonth = 0;
int prevYear = 0;
int nextMonth = 0;
int nextYear = 0;
int currentMonth = mm - 1;
String currentMonthName = getMonthAsString(currentMonth);
daysInMonth = getNumberOfDaysOfMonth(currentMonth);
//Log.d(tag, "Current Month: " + " " + currentMonthName + " having "
//+ daysInMonth + " days.");
// Gregorian Calendar : MINUS 1, set to FIRST OF MONTH
GregorianCalendar cal = new GregorianCalendar(yy, currentMonth, 1);
//Log.d(tag, "Gregorian Calendar:= " + cal.getTime().toString());
if (currentMonth == 11) {
prevMonth = currentMonth - 1;
daysInPrevMonth = getNumberOfDaysOfMonth(prevMonth);
nextMonth = 0;
prevYear = yy;
nextYear = yy + 1;
//Log.d(tag, "*->PrevYear: " + prevYear + " PrevMonth:"
// + prevMonth + " NextMonth: " + nextMonth
// + " NextYear: " + nextYear);
} else if (currentMonth == 0) {
prevMonth = 11;
prevYear = yy - 1;
nextYear = yy;
daysInPrevMonth = getNumberOfDaysOfMonth(prevMonth);
nextMonth = 1;
//Log.d(tag, "**--> PrevYear: " + prevYear + " PrevMonth:"
// + prevMonth + " NextMonth: " + nextMonth
// + " NextYear: " + nextYear);
} else {
prevMonth = currentMonth - 1;
nextMonth = currentMonth + 1;
nextYear = yy;
prevYear = yy;
daysInPrevMonth = getNumberOfDaysOfMonth(prevMonth);
// Log.d(tag, "***---> PrevYear: " + prevYear + " PrevMonth:"
// + prevMonth + " NextMonth: " + nextMonth
// + " NextYear: " + nextYear);
}
// Compute how much to leave before before the first day of the
// month.
// getDay() returns 0 for Sunday.
int currentWeekDay = cal.get(Calendar.DAY_OF_WEEK) - 1;
trailingSpaces = currentWeekDay;
//Log.d(tag, "Week Day:" + currentWeekDay + " is "
// + getWeekDayAsString(currentWeekDay));
//Log.d(tag, "No. Trailing space to Add: " + trailingSpaces);
//Log.d(tag, "No. of Days in Previous Month: " + daysInPrevMonth);
if (cal.isLeapYear(cal.get(Calendar.YEAR)) && mm == 2) {
++daysInMonth;
}
// Trailing Month days
for (int i = 0; i < trailingSpaces; i++) {
//Log.d(tag,
// "PREV MONTH:= "
// + prevMonth
// + " => "
// + getMonthAsString(prevMonth)
// + " "
// + String.valueOf((daysInPrevMonth
// - trailingSpaces + DAY_OFFSET)
// + i));
list.add(String
.valueOf((daysInPrevMonth - trailingSpaces + DAY_OFFSET)
+ i)
+ "-GREY"
+ "-"
+ getMonthAsString(prevMonth)
+ "-"
+ prevYear);
}
// Current Month Days
for (int i = 1; i <= daysInMonth; i++) {
//Log.d(currentMonthName, String.valueOf(i) + " "
// + getMonthAsString(currentMonth) + " " + yy);
if (i == getCurrentDayOfMonth()) {
list.add(String.valueOf(i) + "-BLUE" + "-"
+ getMonthAsString(currentMonth) + "-" + yy);
} else {
list.add(String.valueOf(i) + "-WHITE" + "-"
+ getMonthAsString(currentMonth) + "-" + yy);
}
}
// Leading Month days
for (int i = 0; i < list.size() % 7; i++) {
//Log.d(tag, "NEXT MONTH:= " + getMonthAsString(nextMonth));
list.add(String.valueOf(i + 1) + "-GREY" + "-"
+ getMonthAsString(nextMonth) + "-" + nextYear);
}
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
if (row == null) {
LayoutInflater inflater = (LayoutInflater) _context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row = inflater.inflate(R.layout.calendar_day_gridcell, parent,
false);
}
Display display = ((WindowManager) getSystemService(WINDOW_SERVICE))
.getDefaultDisplay();
int height = 0;
if (android.os.Build.VERSION.SDK_INT >= 13) {
Point size = new Point();
display.getSize(size);
height = size.y;
} else
height = display.getHeight();
float scaledDensity = getApplicationContext().getResources()
.getDisplayMetrics().scaledDensity;
height = (height / ((int) scaledDensity));
if (calendarView.getCount() > 35)
height = (height - 300) / 7;
else
height = (height - 300) / 6;
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.MATCH_PARENT, height);
// Get a reference to the Day gridcell
gridcell = (Button) row.findViewById(R.id.calendar_day_gridcell);
gridcell.setLayoutParams(lp);
gridcell.setOnClickListener(this);
// ACCOUNT FOR SPACING
//Log.d(tag, "Current Day: " + getCurrentDayOfMonth());
String[] day_color = list.get(position).split("-");
String theday = day_color[0];
String themonth = day_color[2];
String theyear = day_color[3];
// Set the Day GridCell
gridcell.setText(theday);
gridcell.setTag(theday + "-" + themonth + "-" + theyear);
if(dateWanted.equals(theday + "-" + themonth + "-" + theyear))
gridcell.setBackgroundColor(getResources().getColor(R.color.LightGreen));
//Log.d(tag, "Setting GridCell " + theday + "-" + themonth + "-"
// + theyear);
if (day_color[1].equals("GREY")) {
gridcell.setTextColor(Color.LTGRAY);
}
if (day_color[1].equals("WHITE")) {
gridcell.setTextColor(Color.WHITE);
}
if (day_color[1].equals("BLUE")) {
gridcell.setTextColor(getResources().getColor(
R.color.static_text_color));
}
return row;
}
public int getCurrentDayOfMonth() {
return currentDayOfMonth;
}
private void setCurrentDayOfMonth(int currentDayOfMonth) {
this.currentDayOfMonth = currentDayOfMonth;
}
public void setCurrentWeekDay(int currentWeekDay) {
this.currentWeekDay = currentWeekDay;
}
public int getCurrentWeekDay() {
return currentWeekDay;
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
whatclicked(v);
}
}
public void whatclicked(View arg1)
{
// TODO Auto-generated method stub
dateWanted = (String) arg1.getTag();
Log.i("date", dateWanted);
if(checkedPoistion != -1)
lastButtonClicked.setBackground(lastDrawable);
checkedPoistion = 1;
arg1.setBackgroundColor(getResources().getColor(R.color.LightGreen));
lastDrawable = arg1.getBackground();
lastButtonClicked = (Button) arg1;
dateTextView.setText("2 - Choose from which date to start the program\nYou chossed from "
+ dateWanted);
}
我的XML代码：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:descendantFocusability="blocksDescendants"
android:background="@drawable/background"
android:orientation="vertical" >
<TextView
android:id="@+id/dateTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5sp"
android:layout_marginTop="15sp"
android:text="From which date to start"
android:textColor="@color/Black"
android:textSize="17sp" />
<RelativeLayout
android:id="@+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="65sp"
android:orientation="horizontal" >
<ImageButton
android:id="@+id/nextMonth"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:src="@drawable/go_next" />
<ImageButton
android:id="@+id/prevMonth"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="18dp"
android:src="@drawable/go_back" />
<TextView
android:id="@+id/textMonth"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="TextView"
android:textColor="@color/Black"
android:textSize="20sp" />
</RelativeLayout>
<RelativeLayout
android:id="@+id/linearLayout4"
android:layout_width="fill_parent"
android:layout_height="35sp"
android:layout_below="@+id/linearLayout1"
android:background="@color/LightBlue"
android:orientation="horizontal" >
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_marginLeft="16dp"
android:layout_toRightOf="@+id/textView1"
android:gravity="center_vertical"
android:text="Thu"
android:textColor="@color/Black"
android:textStyle="bold" />
<TextView
android:id="@+id/textView5"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginRight="18dp"
android:gravity="center_vertical"
android:text="Sat"
android:textColor="@color/Black"
android:textStyle="bold" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:gravity="center_vertical"
android:text="Sun"
android:textColor="@color/Black"
android:textStyle="bold" />
<TextView
android:id="@+id/textView6"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_marginLeft="23dp"
android:layout_toRightOf="@+id/textView4"
android:gravity="center_vertical"
android:text="Fri"
android:textColor="@color/Black"
android:textStyle="bold" />
<TextView
android:id="@+id/textView2"
android:layout_width="31sp"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_marginLeft="28dp"
android:layout_toRightOf="@+id/textView3"
android:gravity="center_vertical"
android:text="Mon"
android:textColor="@color/Black"
android:textStyle="bold" />
<TextView
android:id="@+id/textView9"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_marginLeft="19dp"
android:layout_toRightOf="@+id/textView2"
android:gravity="center_vertical"
android:text="Tue"
android:textColor="@color/Black"
android:textStyle="bold" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:gravity="center_vertical"
android:text="Wed"
android:textColor="@color/Black"
android:textStyle="bold" />
</RelativeLayout>
<GridView
android:id="@+id/calendar"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:clickable="true"
android:numColumns="7"
android:stretchMode="columnWidth" >
</GridView>
</LinearLayout>
1 个答案:
答案 0 :(得分：0)
在自定义适配器类的getView()方法中添加以下代码行：
btn.setFocusable(false);
btn.setClickable(false);
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