使用ListView時,我可以通過編寫this.adapter.delete(mYeets.get(position))
輕鬆刪除適配器中的項目。有了RecyclerView,有沒有相當的?或者通知適配器所有我現在必須做的更改?從RecyclerView刪除對象
private void deleteComment(int position) {
String currentUserObjectId = ParseUser.getCurrentUser().getObjectId();
ParseQuery<ParseObject> query = new ParseQuery<>("Yeet");
query.whereEqualTo(ParseConstants.KEY_OBJECT_ID, mYeets.get(position).getObjectId());
query.whereContains(ParseConstants.KEY_SENDER_ID, currentUserObjectId);
query.findInBackground((yeet, e) -> {
if (e == null) {
for (ParseObject yeetObject : yeet) {
if (yeetObject.getParseObject(ParseConstants.KEY_SENDER_AUTHOR_POINTER).getObjectId().equals((ParseUser.getCurrentUser().getObjectId()))) {
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(mContext);
dialogBuilder.setTitle("Delete");
dialogBuilder.setMessage("Do you want to delete this Yeet?");
dialogBuilder.setPositiveButton("Yes", (dialog, which) -> {
// Iterate over all messages and delete them
for (ParseObject delete : yeet) {
delete.deleteInBackground();
//this.adapter.delete(mYeets.get(position));
this.adapter.notifyDataSetChanged();
Toast.makeText(mContext, "Yeet deleted", Toast.LENGTH_SHORT).show();
}
});
dialogBuilder.setNegativeButton("No", (dialog, which) -> {
});
AlertDialog alertDialog = dialogBuilder.create();
alertDialog.show();
}
}
} else {
Log.e("Error", e.getMessage());
}
});
}
您必須從列表中刪除,然後將notifydataset更改爲適配器。 –
''delete.deleteInBackground();''將刪除數據。這與將其從適配器中移除相同嗎?還是有另一個命令?我無法找到它。 – santafebound