ParseLiveList

[fischerscode]

As many Apps are build around dynamic lists, where items are added, loaded, removed and reordered,
I decided to implement a 'LiveList' to simplify the implementation.

Have a look in the README for further information.

Please consider merging this new feature.
Cheers!

[RodrigoSMarques]

@maaeps
Tip: If possible, update the sample application using this Widget.

[fischerscode]

@RodrigoSMarques
Good idea!
I will do so.

[phillwiggins]

Wow, that's a really nice feature? More than happy to merge in. Shall I wait for the sample app to be updated?

Does any other Parse SDK have this feature? I really like it.

[fischerscode]

@phillwiggins
I will try to update the sample app right now.
So we can wait, I guess.

I only worked with the Android SDK jet. There was nothing like this.

[fischerscode]

Somehow I can't get the example working.
(can't login nor sign up)

@phillwiggins @RodrigoSMarques
Does anyone mind, me creating a second example for this feature?

[phillwiggins]

That's absolutely fine. Just create a second sample app and call it what you want. Just do it in a similar style to the other app, i.e. same package level. Cheers

…

On Mon, Mar 9, 2020, 20:07 Maximilian Fischer ***@***.***> wrote: Somehow I can't get the example working. (can't login nor sign up) @phillwiggins <https://github.com/phillwiggins> @RodrigoSMarques <https://github.com/RodrigoSMarques> Does anyone mind, me creating a second example for this feature? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#324?email_source=notifications&email_token=AB4CPXUJ2SZPJUOM5KY677LRGVD7PA5CNFSM4LEPWZ72YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEOI3ZRQ#issuecomment-596753606>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AB4CPXXQB2MUWMTHSDW2BK3RGVD7PANCNFSM4LEPWZ7Q> .

[fischerscode]

I added a very simple example.
Feel free to make it more advanced ;-)

[phillwiggins]

Excellent work. I'm going to run a few tests on the latest version (1.0.26) and release today if everything seems okay. Any objections @maaeps @RodrigoSMarques ?

[fischerscode]

@phillwiggins
I have one more performance improvement.
It's marked as TODO in the livelist file.
I will commit this improvement today.

I also thought about providing the itemBuilder some kind of snapshot (similar to FutureBuilder)
That might make improvements in the future simpler.
What do you think about that?

Apart form that, I think a release should be fine.

[phillwiggins]

I think add the performance improvement today, leave the other idea until after today.

I will run a few tests my end and if all is well we will release today. I think there's a bug with 1.0.25.

[RodrigoSMarques]

Hi @maaeps
ParseLiveList not working in Flutter Web.
I did a Parse lib test on Flutter Web and had several errors even without using ParseLiveList.

Version 1.0.25 its OK.

Many compile erros:

Compiler message:
../../../../Rodrigo/flutter/.pub-cache/git/Parse-SDK-Flutter-f8af2b658e93c4e3ac9b9d89ed6b0a6603edcd5e/lib/src/utils/parse_live_list.dart:68:3: Error: Type 'Subscription' not found.
  Subscription _liveQuerySubscription;
  ^^^^^^^^^^^^
../../../../Rodrigo/flutter/.pub-cache/git/Parse-SDK-Flutter-f8af2b658e93c4e3ac9b9d89ed6b0a6603edcd5e/lib/src/utils/parse_live_list.dart:69:22: Error: Type 'LiveQueryClientEvent' not found.
  StreamSubscription<LiveQueryClientEvent> _liveQueryClientEventSubscription;
                     ^^^^^^^^^^^^^^^^^^^^
../../../../Rodrigo/flutter/.pub-cache/git/Parse-SDK-Flutter-f8af2b658e93c4e3ac9b9d89ed6b0a6603edcd5e/lib/src/utils/parse_live_list.dart:68:3: Error: 'Subscription' isn't a type.
  Subscription _liveQuerySubscription;
  ^^^^^^^^^^^^
../../../../Rodrigo/flutter/.pub-cache/git/Parse-SDK-Flutter-f8af2b658e93c4e3ac9b9d89ed6b0a6603edcd5e/lib/src/utils/parse_live_list.dart:69:22: Error: 'LiveQueryClientEvent' isn't a type.
  StreamSubscription<LiveQueryClientEvent> _liveQueryClientEventSubscription;
                     ^^^^^^^^^^^^^^^^^^^^
../../../../Rodrigo/flutter/.pub-cache/git/Parse-SDK-Flutter-f8af2b658e93c4e3ac9b9d89ed6b0a6603edcd5e/lib/src/utils/parse_live_list.dart:101:16: Error: 'Subscription' isn't a type.
        .then((Subscription<T> subscription) {
               ^^^^^^^^^^^^
../../../../Rodrigo/flutter/.pub-cache/git/Parse-SDK-Flutter-f8af2b658e93c4e3ac9b9d89ed6b0a6603edcd5e/lib/src/utils/parse_live_list.dart:113:18: Error: 'LiveQueryClientEvent' isn't a type.
        .listen((LiveQueryClientEvent event) async {
                 ^^^^^^^^^^^^^^^^^^^^
../../../../Rodrigo/flutter/.pub-cache/git/Parse-SDK-Flutter-f8af2b658e93c4e3ac9b9d89ed6b0a6603edcd5e/lib/src/utils/parse_live_list.dart:98:10: Error: The getter 'client' isn't defined for the class 'LiveQuery'.
 - 'LiveQuery' is from 'package:parse_server_sdk/src/network/parse_live_query_web.dart' ('../../../../Rodrigo/flutter/.pub-cache/git/Parse-SDK-Flutter-f8af2b658e93c4e3ac9b9d89ed6b0a6603edcd5e/lib/src/network/parse_live_query_web.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'client'.
        .client
         ^^^^^^
../../../../Rodrigo/flutter/.pub-cache/git/Parse-SDK-Flutter-f8af2b658e93c4e3ac9b9d89ed6b0a6603edcd5e/lib/src/utils/parse_live_list.dart:111:10: Error: The getter 'client' isn't defined for the class 'LiveQuery'.
 - 'LiveQuery' is from 'package:parse_server_sdk/src/network/parse_live_query_web.dart' ('../../../../Rodrigo/flutter/.pub-cache/git/Parse-SDK-Flutter-f8af2b658e93c4e3ac9b9d89ed6b0a6603edcd5e/lib/src/network/parse_live_query_web.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'client'.
        .client
         ^^^^^^
../../../../Rodrigo/flutter/.pub-cache/git/Parse-SDK-Flutter-f8af2b658e93c4e3ac9b9d89ed6b0a6603edcd5e/lib/src/utils/parse_live_list.dart:114:20: Error: The getter 'LiveQueryClientEvent' isn't defined for the class 'ParseLiveList<T>'.
 - 'ParseLiveList' is from 'package:parse_server_sdk/src/utils/parse_live_list.dart' ('../../../../Rodrigo/flutter/.pub-cache/git/Parse-SDK-Flutter-f8af2b658e93c4e3ac9b9d89ed6b0a6603edcd5e/lib/src/utils/parse_live_list.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'LiveQueryClientEvent'.
      if (event == LiveQueryClientEvent.CONNECTED) {
                   ^^^^^^^^^^^^^^^^^^^^
../../../../Rodrigo/flutter/.pub-cache/git/Parse-SDK-Flutter-f8af2b658e93c4e3ac9b9d89ed6b0a6603edcd5e/lib/src/utils/parse_live_list.dart:239:19: Error: The getter 'client' isn't defined for the class 'LiveQuery'.
 - 'LiveQuery' is from 'package:parse_server_sdk/src/network/parse_live_query_web.dart' ('../../../../Rodrigo/flutter/.pub-cache/git/Parse-SDK-Flutter-f8af2b658e93c4e3ac9b9d89ed6b0a6603edcd5e/lib/src/network/parse_live_query_web.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'client'.
      LiveQuery().client.unSubscribe(_liveQuerySubscription);
                  ^^^^^^

``

[fischerscode]

@RodrigoSMarques
I think LiveQuery uses a different sourcecode on web.
I will have a look at it.
Can you please create a seperate issue for this?

[fischerscode]

@RodrigoSMarques
This should be fixed with #340.
Let me know if LiveList makes further problems in your code.

[RodrigoSMarques]

HI @maaeps
I'm going to do a test.
Thanks.