The application may be doing too much work on its main thread.

Miki93

Well, first than nothing, i dont speak english very well. Sorry if i write anithig wrong.

Well, I'm developing an app, and I have several weeks working in this 'project', today I realized that my app have a poor UI, becose, it freeze sometimes, for example when I navigate to another page, or fill a ListView component, and in all pages the consele throw me this: I/Choreographer( xxxx ): Skipped xx frames! The application may be doing too much work on its main thread..

These are two examples of my problem:

NAVIGATING TO ANOTHER PAGE

FILL A LISTVIEW COMPONENT

i tried use several solutions but nothing worked

To avoid that the listview component getting cold, I tried this:

public async Task Async_llenarListView(){
await Task.Run(() => {
string[] _equipos = { "Los Angeles Lakers", "Golden State Warriors", "Boston Celtics"};

            for (int i = 0; i < _equipos.Length; i++){
                _lista.Add(new model_equipos{
                    _id = i,
                    _source = "team" + (i + 1),
                    _nombreEquipo = _equipos[i],
                    _siglas = _siglas[i],
                    _votos = new Random().Next(0, 100) + ""
                });
            }
        });
    }`

(This example is another ListView Component, don't is the ListView Component of the Second Gif)

To call a Page, i do this now:
private void mc_btn_sinCuentaAsync(object obj){
Application.Current.MainPage.Navigation.PushAsync(new mdp());
}
(When i press the button using the method to call another page in that way the page don't load and the app stay in blank. I can return press the back button)

I don't knows how solve these problems i was searching in internet but don't finnded(or find - I don't knows how write it, sorry) nothig that help me.. I need knows how if use Await and Task or Device.BeginInvokeOnMainThread. I'm new with C# and for that i don't know use it very well.

I would like a example about the use of best performance to CrossPlatform App.. please help me

Miki93

Oh i forgot anything else,

I tried this to call another page :

private async void mc_btn_sinCuentaAsync(object obj){
awake Task.Run(() => { Application.Current.MainPage.Navigation.PushAsync(new mdp()); });
}

And for this is my third gif. With my first form mentioned:
private void mc_btn_sinCuentaAsync(object obj){
Application.Current.MainPage.Navigation.PushAsync(new mdp());
}
The page open nice and show the content, but very slow.

Miki93

Well if somebody have the same problem, I "solved" this doing the next:

Wiht the slow scroll I used the ListViewCachingStrategy and set them with RecycleElement. And my ListView Scroll have a fluid scroll now.

And The another problem of the app slow when I Press a button, I set a Page with a ActivityIndicator, and in my viewnidel I used a isBusy Property, when the page load the ActivityIndicator set isVisible = false;

I'm having the same problem with the
I/Choreographer(xxxxx): Skipped xxx frames! The application may be doing too much work on its main thread.

But i don't knows how solved it.. I'm using async-await Task.Run wiht my ListViews but.. THE SAME... if Anyone can give me recommendations for solved this problems in a app Xamarin CrossPlatform, amazing.

I wait that my recommendations can help anyone.

denes710

Hello,

Did you solve your problem ? I have the same problem and I do not know what to do.

Thank you for your recommendations.

Miki93

@denes710 said:
Hello,

Did you solve your problem ? I have the same problem and I do not know what to do.

Thank you for your recommendations.

well, researching on internet I finded this:

https://vaibhavtolia.wordpress.com/2013/10/03/79/

on summary is normal have that's warning, but if is less than 100 of frames skipped.
In my case only are 88 or less. I solved some cases that was more than 100 frames skiped, using Task.

I hope this serves you something.