在Android中,可以使用原始日历应用程序或为自己的应用程序创建另一个日历应用程序。下面是使用原始日历和为自己的应用程序创建另一个日历应用程序的最佳实践,包括代码示例。
使用原始日历应用程序:
implementation 'com.android.support:support-v4:28.0.0'
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:design:28.0.0'
查询日历:
Uri uri = CalendarContract.Calendars.CONTENT_URI;
String[] projection = {
CalendarContract.Calendars._ID,
CalendarContract.Calendars.ACCOUNT_NAME,
CalendarContract.Calendars.CALENDAR_DISPLAY_NAME,
CalendarContract.Calendars.OWNER_ACCOUNT
};
Cursor cursor = getContentResolver().query(uri, projection, null, null, null);
if (cursor != null && cursor.moveToFirst()) {
do {
// 处理每个日历的数据
String calendarName = cursor.getString(cursor.getColumnIndex(CalendarContract.Calendars.CALENDAR_DISPLAY_NAME));
String accountName = cursor.getString(cursor.getColumnIndex(CalendarContract.Calendars.ACCOUNT_NAME));
String ownerName = cursor.getString(cursor.getColumnIndex(CalendarContract.Calendars.OWNER_ACCOUNT));
// 打印日历信息
Log.d(TAG, "Calendar Name: " + calendarName);
Log.d(TAG, "Account Name: " + accountName);
Log.d(TAG, "Owner Name: " + ownerName);
} while (cursor.moveToNext());
}
cursor.close();
创建日历事件:
ContentValues values = new ContentValues();
values.put(CalendarContract.Events.TITLE, "My Event");
values.put(CalendarContract.Events.DESCRIPTION, "This is a test event");
values.put(CalendarContract.Events.CALENDAR_ID, calendarId);
values.put(CalendarContract.Events.DTSTART, startTime);
values.put(CalendarContract.Events.DTEND, endTime);
values.put(CalendarContract.Events.EVENT_TIMEZONE, TimeZone.getDefault().getID());
Uri uri = getContentResolver().insert(CalendarContract.Events.CONTENT_URI, values);
long eventID = Long.parseLong(uri.getLastPathSegment());
Log.d(TAG, "Event ID: " + eventID);
为自己的应用程序创建另一个日历应用程序:
创建日历列表项布局(calendar_list_item.xml):
创建日历列表适配器(CalendarAdapter.java):
public class CalendarAdapter extends RecyclerView.Adapter {
private List events;
// 构造函数和ViewHolder的实现
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.calendar_list_item, parent, false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
Event event = events.get(position);
holder.eventTitle.setText(event.getTitle());
// 设置其他事件详情视图
}
@Override
public int getItemCount() {
return events.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
TextView eventTitle;
// 其他事件详情视图
public ViewHolder(@NonNull View itemView) {
super