删除日历条目
我编写了用于删除android日历中所有条目的简单代码,但并未删除任何内容。
源代码:
public void DeleteEvent(View view){ int iNumRowsDeleted = 0;
Uri eventsUri = Uri.parse("content://com.android.calendar/events");
Cursor cur = getContentResolver().query(eventsUri, null, null, null, null);
while (cur.moveToNext()){
long id = cur.getLong(cur.getColumnIndex("_id"));
Log.d(TAG, "ID: " + id);
Uri eventUri = ContentUris.withAppendedId(eventsUri, id);
iNumRowsDeleted = getContentResolver().delete(eventUri, null, null);
}
}
回答:
private void deleteEvent(ContentResolver resolver, Uri eventsUri, int calendarId) { Cursor cursor;
if (android.os.Build.VERSION.SDK_INT <= 7) { //up-to Android 2.1
cursor = resolver.query(eventsUri, new String[]{ "_id" }, "Calendars._id=" + calendarId, null, null);
} else { //8 is Android 2.2 (Froyo) (http://developer.android.com/reference/android/os/Build.VERSION_CODES.html)
cursor = resolver.query(eventsUri, new String[]{ "_id" }, "calendar_id=" + calendarId, null, null);
}
while(cursor.moveToNext()) {
long eventId = cursor.getLong(cursor.getColumnIndex("_id"));
resolver.delete(ContentUris.withAppendedId(eventsUri, eventId), null, null);
}
cursor.close();
}
我这样称呼它:
Uri eventsUri;int osVersion = android.os.Build.VERSION.SDK_INT;
if (osVersion <= 7) { //up-to Android 2.1
eventsUri = Uri.parse("content://calendar/events");
} else { //8 is Android 2.2 (Froyo) (http://developer.android.com/reference/android/os/Build.VERSION_CODES.html)
eventsUri = Uri.parse("content://com.android.calendar/events");
}
ContentResolver resolver = this.getContentResolver();
deleteEvent(resolver, eventsUri, calendarId);
以上是 删除日历条目 的全部内容, 来源链接: utcz.com/qa/402422.html