我有一个自定义日历应用程序，它与我们的学校信息亭应用程序集成。日历必须允许添加事件并为每个事件设置通知。如何存储每个事件并在设定的时间和日期通知它？谁能帮我？这是日历代码。
public class MyCalendar extends Activity implements OnClickListener {
public Calendar month;
public CalendarAdapter adapter;
public Handler handler;
public ArrayList<String> items;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.calendar);
month = Calendar.getInstance();
items = new ArrayList<String>();
adapter = new CalendarAdapter(this, month);
GridView gridView = (GridView) findViewById(R.id.gridview);
gridView.setAdapter(adapter);
handler = new Handler();
handler.post(calendarUpdater);
TextView title = (TextView) findViewById(R.id.title);
title.setText(android.text.format.DateFormat.format("MMMM yyyy", month));
Button previous = (Button) findViewById(R.id.previous);
previous.setOnClickListener(this);
Button next = (Button) findViewById(R.id.next);
next.setOnClickListener(this);
gridView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v,
int position, long id) {
TextView date = (TextView) v.findViewById(R.id.date);
if (date instanceof TextView && !date.getText().equals("")) {
Intent intent = new Intent(
"com.gpplsmje.mac.calendar.CALENDAREVENTS");
intent.putExtra(
"date",
android.text.format.DateFormat
.format("MMMM", month)
+ " "
+ day
+ ", "
+ android.text.format.DateFormat.format(
"yyyy", month));
startActivity(intent);
}
}
});
public void refreshCalendar() {
TextView title = (TextView) findViewById(R.id.title);
daysAdapter.fill();
adapter.refreshDays();
adapter.notifyDataSetChanged();
handler.post(calendarUpdater);
title.setText(android.text.format.DateFormat.format("MMMM yyyy", month));
}
@Override
public void onNewIntent(Intent intent) {
String date = intent.getStringExtra("date");
String[] dateArr = date.split("-");
month.set(Integer.parseInt(dateArr[0]),
Integer.parseInt(dateArr[1], Integer.parseInt(dateArr[2])));
}
public Runnable calendarUpdater = new Runnable() {
@Override
public void run() {
items.clear();
for (int i = 0; i < 31; i++) {
Random r = new Random();
if (r.nextInt(10) > 6) {
items.add(Integer.toString(i));
}
}
adapter.setItems(items);
adapter.notifyDataSetChanged();
}
};
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.previous:
if (month.get(Calendar.MONTH) == month
.getActualMinimum(Calendar.MONTH)) {
month.set((month.get(Calendar.YEAR) - 1),
month.getActualMaximum(Calendar.MONTH), 1);
} else {
month.set(Calendar.MONTH, month.get(Calendar.MONTH) - 1);
}
refreshCalendar();
break;
case R.id.next:
if (month.get(Calendar.MONTH) == month
.getActualMaximum(Calendar.MONTH)) {
month.set((month.get(Calendar.YEAR) + 1),
month.getActualMinimum(Calendar.MONTH), 1);
} else {
month.set(Calendar.MONTH, month.get(Calendar.MONTH) + 1);
}
refreshCalendar();
break;
}
}
}
这是 CalendarAdapter 类：
public class CalendarAdapter extends BaseAdapter {
static final int FIRST_DAY_OF_WEEK = 0;
private Context context;
private java.util.Calendar month;
private Calendar selectedDate;
private ArrayList<String> items;
public String[] days;
public CalendarAdapter(Context c, Calendar monthCalendar) {
month = monthCalendar;
selectedDate = (Calendar) monthCalendar.clone();
context = c;
month.set(Calendar.DAY_OF_MONTH, 1);
this.items = new ArrayList<String>();
refreshDays();
}
public void setItems(ArrayList<String> items) {
for (int i = 0; i != items.size(); i++) {
if (items.get(i).length() == 1) {
items.set(i, "0" + items.get(i));
}
}
this.items = items;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return days.length;
}
@Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
TextView dayView;
if (convertView == null) { // if it's not recycled, initialize some
// attributes
LayoutInflater vi = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.calendar_item, null);
}
dayView = (TextView) v.findViewById(R.id.date);
// disable empty days from the beginning
if (days[position].equals("")) {
dayView.setClickable(false);
dayView.setFocusable(false);
} else {
// mark current day as focused
if (month.get(Calendar.YEAR) == selectedDate.get(Calendar.YEAR)
&& month.get(Calendar.MONTH) == selectedDate
.get(Calendar.MONTH)
&& days[position].equals(""
+ selectedDate.get(Calendar.DAY_OF_MONTH))) {
v.setBackgroundResource(R.drawable.item_background_focused);
} else {
v.setBackgroundResource(R.drawable.calendar_item_bg);
}
}
dayView.setText(days[position]);
// create date string for comparison
String date = days[position];
if (date.length() == 1) {
date = "0" + date;
}
String monthStr = "" + (month.get(Calendar.MONTH) + 1);
if (monthStr.length() == 1) {
monthStr = "0" + monthStr;
}
// show icon if date is not empty and it exists in the items array
ImageView iw = (ImageView) v.findViewById(R.id.date_icon);
if (date.length() > 0 && items != null && items.contains(date)) {
iw.setVisibility(View.VISIBLE);
} else {
iw.setVisibility(View.INVISIBLE);
}
return v;
}
public void refreshDays() {
// clear items
items.clear();
int lastDay = month.getActualMaximum(Calendar.DAY_OF_MONTH);
int firstDay = month.get(Calendar.DAY_OF_WEEK);
int remain = 0;
int minus = firstDay - 1;
if (lastDay == 31) {
remain = 11 - minus;
if (firstDay == 1) {
days = new String[lastDay + (FIRST_DAY_OF_WEEK * 6) + remain];
} else {
days = new String[lastDay + firstDay - (FIRST_DAY_OF_WEEK + 1) + remain];
}
} else if (lastDay == 30) {
remain = 12 - minus;
if (firstDay == 1) {
days = new String[lastDay + (FIRST_DAY_OF_WEEK * 6) + remain];
} else {
days = new String[lastDay + firstDay - (FIRST_DAY_OF_WEEK + 1) + remain];
}
} else if (lastDay == 29) {
remain = 13 - minus;
if (firstDay == 1) {
days = new String[lastDay + (FIRST_DAY_OF_WEEK * 6) + remain];
} else {
days = new String[lastDay + firstDay - (FIRST_DAY_OF_WEEK + 1) + remain];
}
} else if (lastDay == 28) {
remain = 14 - minus;
if (firstDay == 1) {
days = new String[lastDay + (FIRST_DAY_OF_WEEK * 6) + remain];
} else {
days = new String[lastDay + firstDay - (FIRST_DAY_OF_WEEK + 1) + remain];
}
}
// figure size of the array
int dummy;
if (firstDay == 1) {
dummy = lastDay + (FIRST_DAY_OF_WEEK * 6);
} else {
dummy = lastDay + firstDay - (FIRST_DAY_OF_WEEK + 1);
}
int j = FIRST_DAY_OF_WEEK;
// populate empty days before first real day
if (firstDay > 1) {
for (j = 0; j < firstDay - FIRST_DAY_OF_WEEK; j++) {
days[j] = "";
}
} else {
for (j = 0; j < FIRST_DAY_OF_WEEK * 6; j++) {
days[j] = "";
}
j = FIRST_DAY_OF_WEEK * 6 + 1; // sunday => 1, monday => 7
}
// populate days
int dayNumber = 1;
int i;
for (i = (j - 1); i < dummy; i++) {
days[i] = "" + dayNumber;
dayNumber++;
}
for(int k = i; k < days.length; k++){
days[k] = "";
}
}
}