A Dialogue with a Custom Layout - android-layout

I would like to create a dialogue with a custom layout. The Android API documents suggest that I always use Alert Dialogue, and that I do not try to instantiate the Dialogue class directly.
This is extremely difficult, because the builder for AlertDialog does not allow custom views. I was lucky enough to find support for an adapter, but it is still extremely difficult to gain access to a layout inflater.
Is there a reason why a fragment class does not have getContext()?
How do you get a layoutInflater inside a fragment when the savedInstanceState is null?
If it is possible, what is the best way to create a fully custom dialog?

Even though the dialogue fragment does not support...
getLayoutInflater(Bundle) (because the SavedInstanceState is null), or
getContext()
you can use getActivity().getLayoutInflater().

Related

Is there a way to make an activity transparent in Android Studio?

I'm trying to design my LoginActivity to look like my LoginController in iOS. Is there a way to make an activity transparent, or do I need to use a fragment? Thank you!
// My Design
You can achieve this through multiple ways
Create an activity and make its background as transparent in the layout.(Not recommended)
Create an alert dialog within the activity and make the alert dialog background as transparent
Create a dialog fragment make its layout transparent and open it from the activity.
Create a view stub within the same activity layout and inflate the view when required. (Handling back press events might be a difficult task here).
Although the right way would be to create an alert dialog within the activity or creating a dialog fragment or create a view stub. Create an alert dialog if you don't have much events or elements within the dialog since its easy and efficient than creating a dialog fragment for a little dialog. Creating a view stub would be the most efficient way since it simply inflates the view which takes less amount of resource. But don't go with creating an activity for this dialog which is resource intensive and not the correct way.

Create a generic popup panel

I have added a Global Button with the following code.
public override void Initialize()
{
if (!String.IsNullOrEmpty(Base.PrimaryView))
{
Type primaryViewItemType = Base.Views[Base.PrimaryView].Cache.GetItemType();
PXAction action = PXNamedAction.AddAction(Base, primaryViewItemType, "SubmitTicket", "Submit Ticket", TestClick);
}
}
public IEnumerable TestClick(PXAdapter adapter)
{
throw new PXException("Button clicked from graph" + Base.GetType().Name);
}
And it renders the button like this in each of the pages.
Now, I would like to display a popup panel, on button's click. I know I can create a popup panel on screen section. But, is there some way that I can have a general popup panel created in one place and can be displayed on each of the pages on the button's click?
Thank you.
As #HB_ACUMATICA mentioned there is no good easy way.
Providing another alternative to his post, you can create a graph and use it as a reusable popup by calling:
throw new PXPopupRedirectException(graph, string.Empty, true)
One thing I ran into was a sizing issue on the popup...
Changing the height/width when calling another graph as an in-page popup using PXPopupRedirectException
If you do copy and paste the PXSmartPanel you can create re-usable business logic by implementing the reusable business logic pattern found in this help as a starting point:
Reusing Business Logic
If I understand correctly you want to share the same PXSmartPanel control in different pages without having to copy/paste it in every screen.
In Acumatica Framework this is achieve by custom container controls like 'PXUploadDialog' which derives functionality from other controls like 'PXSmartPanel'. This is the control that is used when you attach files in all screen.
Unfortunately there seems to be no documentation on how to achieve this.
The closest I found is this SO question which is essentially unanswered:
Create custom User Control for Acumatica
Considering this, you may want to copy/paste the same smart panel in all screen.
To ease copying you can use the 'Edit ASPX' feature, make sure you backup the project before.
Edit ASPX to get to the code:
Copy paste your smart panel in the page and click 'GENERATE CUSTOMIZATION SCRIPT' to package the changes in the project:

Xamarin iOS : How to detect the tableview scroll

I want to detect the scroll of tableview in my class. I used decelerationEnded method of UITableViewDelegate but it got crashed.
Ideally you should be using a UITableViewSource assigned to your UITableView.Source property. You no longer require a delegate class, you can override all of the necessary methods within the source, which is the currently preferred method of achieving the result your after. You are most likely looking to override the method called 'Scrolled' within the UITableViewSource. However I would suggest making use of 'DecelerationEnded' as well if you're trying to do something depending on if your scroll view is at the 'bottom' or 'top' of the UITableViews content (That's just a little tip based off of some experience with this in a recent project.)

Insert a Monogame view inside MvvmCross monodroid Activity

I'm trying to build a Monogame view inside a RelativeLayout from my MvvmCross monodroid Activity view.
An android Activity inherits from Microsoft.Xna.Framework.AndroidGameActivity to be able to run a Monogame inside a RelativeLayout (working).
My MvvmCross Activity inherits from MvxBindingActivityView(working).
So, I need a way to run the game and bind some datas within the same activity.
Thanks in advance for your help.
Loosely speaking, you can translate any Activity to an MvxActivity by inheriting some interfaces and by then cutting and pasting a small amount of code which does the basic loading and assignation of the ViewModel.
e.g. see the #Region and IMvxAndroidView<TViewModel> added to make MvxActivityView.cs from a normal Activity.
e.g. it's the same region and interface used for adapting a specialised Activity like Google's MapActivity into MvxMapActivityView.cs
At this level, the Activity/View has a ViewModel which can be used in C# code, but has no clever xml inflation - it has no clever Binding support.
Code can be written at this level - I've shipped apps without binding - but many users prefer to add DataBinding too...
To add this DataBinding support, you need to add a bit more code which provides BindingInflate, storage of bindings, disposal of bindings, etc.
e.g. a raw MvxActivityView is extended using the IMvxBindingActivity interface and a #region like: MvxBindingActivityView.cs
e.g. MvxMapActivityView is extended using the same region and interface: MvxBindingMapActivityView.cs
So to extend your the custom AndroidGameActivity:
Inherit from AndroidGameActivity to get ViewModelOwningGameActivity<T> and cut and paste the IMvxAndroidView<TViewModel> interface and #region from MvxActivityView<T> to provide the ViewModel methods, fields and properties.
Then assuming you want binding:
Inherit from ViewModelOwningGameActivity<T> to get BindingGameActivity<T> and cut and paste the IMvxBindingActivity and #region from MvxBindingActivityView<T> to get the binding methods
For specialist Activities you may want to add more - e.g. you may could add some custom helper methods for the MapActivity to plot points and lines, or for GameActivity to do whatever games do... but this is up to individual implementations.
Sorry about the cut and paste of code required in adapting Activities - I have tried to keep this to a minimum. However, writing Mvx is the one time so far that I've really wanted Multiple Inheritance or Mixins in C#

MVC basics: Should I add a UIViewController, a Delegate or a Source to my custom view?

my question is about view controllers, delegates and all that in general. I feel perfectly comfortable with UIView, UIViewController, Delegates and Sources, like UITableView does for instance. It all makes sense.
Now I have implemented my first real custom view. No XIBs involved. It is an autocomplete address picker very much like in the Mail application. It creates those blue buttons whenever a recipient is added and has all the keyboard support like the original.
It subclasses UIView. There is no controller, no delegate, no source. I wonder if I should have either one of those? Or all, to make it a clean implementation.
I just cannot put my finger on the sense a view controller would make in my case. My custom view acts much like a control and a UIButton doesn't have a controller either.
What would it control in my view's case?
Some of my thoughts:
For the source: currently the view has a property "PossibleAutocompleteRecipients" which contains the addresses it autocompletes. I guess this would be a candidate for a "source" implementation. But is that really worth it? I would rather pass the controller to the view and put the property into the controller.
The selected recipients can be retrieved using a "SelectedRecipients" property. But views should not store values, I learned. Where would that go? Into the controller?
What about all the properties like "AllowSelectionFromAddressBook"? Again, if I compare with UIButton, these properties are similar to the button's "Secure" property. So they are allowed to be in the view.
The delegate could have methods like "WillAddRecipient", "WillRemoveRecipient" and so on and the user could return TRUE/FALSE to prevent the action from happening. Correct?
Should I maybe inherit from UIControl in the first place and not from UIView?
And last but not least: my custom view rotates perfectly if the device is rotated. Why don't all views? Why do some need a controller which implements ShouldAutoRotateToDeviceOrientation()?
Does it make sense what I wrote above? In the end I will provide the source on my website because it took me some time to implement it and I would like to share it as I have not found a similar implementaion of the Mail-App-like autocomplete control in MonoTouch.
I just want to learn and understand as much as possible and include it in the source.
René
I can answer part of your question.
I just cannot put my finger on the
sense a view controller would make in
my case
The ViewController is responsible for handling the View's state transitions (load, appear, rotate, etc) These transitions are used mainly when you use a navigation component (UINavigationViewController, UITabBarController). These components needs to received a ViewController that will handles the view's transitions.
For exemple, when you push a ViewController on a UINavigationViewController, it will cause the ViewDidLoad, ViewWillAppear, ViewDidAppear. It will also cause the ViewWillDisappear, ViewDidDisappear of the current ViewController.
So, if your application has only one portrait view, you don't need a ViewController. You can add your custom view as a subview of the main window.

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