Intersoft Community - Crosslight - How to Use Crosslight to Enable Scroll to Visible on Text Fields

How to Use Crosslight to Enable Scroll to Visible on Text Fields

Arief — Thu, 05 Mar 2015 05:34:25 GMT

I see thanks jimmy for your instructions, i successfully use autoscrolltovisible, look likes i forgot to add the scroll view

How to Use Crosslight to Enable Scroll to Visible on Text Fields

jtungol@silentpartnersoft.com — Tue, 03 Mar 2015 17:18:15 GMT

If you're using the samples provided by Crosslight then you will be having issues with LogoView. That's fine. I think the solution to this is by using the correct view. That is to use a ScrollView in order for AutoScrollToVisible to work.

How to Use Crosslight to Enable Scroll to Visible on Text Fields

Arief — Thu, 26 Feb 2015 02:45:57 GMT

Hello Jimmy,

I'm unsuccessfully replicate your problem, i got no error except "Object reference not set to an instance of an object" that caused by var p_LogoView giving me a null value but AutoScrollToVisible work normally

I'm using MVVM samples and i insert your code inside BindingProviderViewController.cs in view controller folder i attach the file in this message, could you replicate your problem using that samples and send it to me?

How to Use Crosslight to Enable Scroll to Visible on Text Fields

jtungol@silentpartnersoft.com — Wed, 25 Feb 2015 17:35:23 GMT

Here's how.

        public UserLoginViewController()            : base("UserLoginView", null)
        {
        }

        public override bool HideKeyboardOnTap
        {
            get
            {
                return true;
            }
        }

        public override bool AutoScrollToVisible 
        {
            get 
            {
                return true;
            }
        }

        public override bool ShouldAutorotate()
        {
            return false;
        }

        protected override void InitializeView()
        {
            base.InitializeView();

            // Support pre-iPhone5 display
            // Get the control instance from the view controller.
            var p_BlurryView = this.View.ViewWithTag(101);
            var p_LogoView = this.View.ViewWithTag(102);

            // Support pre-iPhone5 display
            if (UIScreen.MainScreen.Bounds.Height <= 480)
            {
                p_LogoView.Frame = new CGRect(
                    p_LogoView.Frame.Left + 10, 
                    p_LogoView.Frame.Top,
                    p_LogoView.Frame.Width - 20, 
                    p_LogoView.Frame.Height - 35);

                p_BlurryView.Frame = new CGRect(
                    p_BlurryView.Frame.Left, 
                    p_BlurryView.Frame.Top - 40,
                    p_BlurryView.Frame.Width, 
                    p_BlurryView.Frame.Height);
            }

            // Needed in iOS 7.1
            p_BlurryView.SetNeedsDisplay();
            p_LogoView.SetNeedsDisplay();
        }

How to Use Crosslight to Enable Scroll to Visible on Text Fields

Arief — Wed, 25 Feb 2015 10:07:41 GMT

Hello Jimmy,

AutoScrollToVisible is exclusively only for IOS platform due to built-in feature not exist inside IOS (Apple decide not to implement that feature for design flexibility & dynamic reasons), for other Platform that feature was already built-in and automatically applied so you don't need to use AutoScrollToVisible. You can read more about IOS & AutoScrollToVisible here.

If you want i can check your AutoScrollToVisible but i need you tell me your AutoScrollToVisible implementation code or you can attach the error file

But normally you only need to use this code inside your View Controller in IOS folder

public override bool AutoScrollToVisible               {            get            {                return true;            }        }

Hope that answer your question :)

Best Regards,
Arief

How to Use Crosslight to Enable Scroll to Visible on Text Fields

jtungol@silentpartnersoft.com — Wed, 25 Feb 2015 05:11:51 GMT

Hi,

How do we enable AutoScrollToVisible property for ALL platforms (iOS, Android, WinRT, WinPhone) without Crosslight getting a "Object reference not set to an instance of an object" error? Please advise.

Thanks!