I am new to iPhone. I have Develop one aplication that is of ViewBased Application.
Everything is right but while i run the application, instead of showing list of content it shows the white screen. After doing studies come to know that it may be for the XIB file references. As my code is right at all. So will u tell me while it appear like it ?
Thanks in advance.
check your .xib file and see whether you have link it to datasource and delegate or not.
Check your xib and properly check inteface builder that a datasource and delegate is set or not. for showing a view you have to set datasource and delegate..and also you have to check in appdelegate file that a object of your view controller have been made or not... i.e. you have to allocate memory of your view controller in app delegate file..
Related
I'm trying to open a View with a ViewModel from my MainWindowViewModel.
It works, but all I get is a blank window. It binds the correct title but every other control is missing.
Did anyone have the same problem and found a solution?
You forgot the call to InitializeComponent in your code-behind. Just a tip: create a base class with the Catel behaviors, then use that as a base view. It will keep your actual window code-behind much cleaner.
Getting started with xCode 4.6.3 and I'm running into a hiccup.
I've built a simple app using the UIWebView to display a local HTML file and it's contents. I used that to debug any issues with the HTML and/or image displays and I'm all set.
Now I need to recreate that within a larger project I've built with storyboards for all my navigations between multiple view controllers. My issue comes when I'm trying to control-click drag from the WebView into the ViewController.h code below the #interface like many tutorials show, and that worked fine within my smaller single view controller app. It won't do it. I know I'm missing something obvious here. Am I going to have the set up these screens (I have multiple ones to do this same way) as separate xib files and add them into my main project?
Thanks for any help and clarification.
-Chris
You can create a class called for example myWebViewController and in Interface builder add a UIWebView to it. The control+drag to the header file will work.
Every time you want a UIViewController that has a browser in it, define its class as myWebViewController in Interface Builder.
Try not to repeat code. If you see UIViewControllers or any other UIView...that do the same thing, you can group them into a class that you use over and over.
I need to create a Custom view in android which will have dynamic text like price, address etc. and also an ImageView inside it as shown in the image below. I tried to find google some tutorial for custom view but didn't find something satisfactory to do all these things. I also need to use onClick event on this view. Please guys, some code would be of great help. I'm a novice to android. I read google tutorial to create custom view but couldn't implement this.
https://lh4.ggpht.com/HmwmRTx3g9ddkHbgvZXpZOB3Am-O9OQARQ2qpxJ16zTDZbG57CmvgxUC75sGFzC3cqrH
Thanks for attention.
This is called Custom Overlay for MapView.
You can check example and implement as per your requirement - Android MapView Balloons
You can use FrameLayouts. It is very simple to use. FrameLayout can add several views on top of each other. It creates a stack of the views. Just add whatever views you want to inside FrameLayout and use the property setVisibility() to control when to show which view.
I have already asked the same question but in regards with MDI Application design. Now just for R&D purpose so that we can go with 2 solutions to our user. Can somebody plz help me out...
We are developing an OutLook Style Application using C# Winforms. In that application we are using Microsoft Table Control. Which is what we need to show our UI. In the left hand pane we have menu and in the right hand we are displaying our UserControl. Like CustomerManager. This UserControl is doing Adding, Updating, Deleting ect etc but we want to put the common action buttons, Like Add,Delete,Save on the top toolbar.
So far so good, Now what we need to acheve is regardless of UserControl. What ever UserControl is loaded in the MainForm's TableControl. When the save button is clicked it should process the data on that UserControl. Obviously we will write the logic of the Save Action on each UserControl.
Please help...
Regards
Shanx
I may advice you the Krypton Toolkit. You will write an Outlook style app in seconds.
For all who ended up here like me in search of a free toolkit: As Vulkanino suggested to use Krypton, I loooked it up.
This is now open source Freeware and can be found unter: Krypton Toolkit
Create a Base user control that contains your Add, Delete, Save methods and events. Then create every other functional control that inherits from the Base control.
When you action the main toolbar buttons, you can safely cast each user control in your given container, to the Base user control.
Some MSDN links you might want to read up on:
http://msdn.microsoft.com/en-us/library/44a9ty12(VS.80).aspx
http://msdn.microsoft.com/en-us/library/ms173149(VS.80).aspx
I'm a C# programmer dabbling in a bit of iPhone development using MonoTouch.
I add a new View Interface Definition to my project and double click to open it up in Interface Builder. I add a UIButton. I save the file, and inspect the xib.designer.cs file, and I can see no reference to the new button.
I downloaded the code from http://monotouchexamples.com/ where I could see an example of autogenerated code behind :
[MonoTouch.Foundation.Connect("infoButton")]
private MonoTouch.UIKit.UIButton infoButton {
get {
return ((MonoTouch.UIKit.UIButton)(this.GetNativeField("infoButton")));
}
set {
this.SetNativeField("infoButton", value);
}
}
I opened up MainWindow.xib in interface builder. I notice a few differences. File's Owner is of type UIApplication instead of NSObject. What is the importance of this? There is an App Delegate object of type AppDelegate. I can't add an AppDelegate to my own view, or at least I can't find it in the Library. Do I need to add one? I can see that the existing controls on MainWindow.xib have Referencing Outlets to the App Delegate. I add a new button and I want to hook it up. When I click and drag a New Referencing Outlet to the App Delegate a context menu appears that lists the existing controls. How do I add a new element to this list, or where does this list come from?
I've been spoilt by the Visual Studio world where I just dump a button on a form and start writing code for the click event. Could someone provide some pointers about the steps needed to get this working on MonoTouch?
Thanks,
Patrick
Adding a button by itself is not enough. The button is not accessible outside the Interface Builder. You need add an Outlet, and connect the button with the outlet in Interface Builder.
Remember: Outlets are the members in your Controller class that get a reference to the controls, you can't just access the controls without them.
As Dave says, you need to add an outlet to your controller class, and connect your button to that outlet, before any auto-generated code will appear. This caught me out too initially.
You choose your controller class in the Interface Builder library window, choose 'outlets' in the bottom part of the library, and add an outlet there. You then need to select your button, choose the connections tab of the inspector window, and drag from the "New referencing outlet" circle over to your controller class. Interface Builder will then prompt you to choose an outlet to connect to. Then when you save, you should get the auto-generated code appear in the .xib.designer.cs file, and then you should be able to reference your button via that outlet variable in your .xib.cs file.
It sounds like the project I created is out of date - I remember there were quite a few changes around how the generated buttons are created in the designer file. I will update the project soon for you.
As Dave said, to get the code to be auto generated you need to add an outlet with Interface Builder. There should be an example on this video here - http://bit.ly/aWoItN but the server seems to be down at the moment.
Hope this helps,
ChrisNTR