Suppose you have a parentView into which you want to insert a new subView programmatically (eg. when you want to insert an UIImageView into a UIViewController's view), than you can do it as below.
Objective-C
[parentView addSubview:subView];
Swift
parentView.addSubview(subView)
You can also...
Haxe's enumeration types are algebraic data types (ADT). Their primary use is for describing data structures. Enums are denoted by the enum keyword and contain one or more enum constructors.
enum Color {
Red;
Green;
Blue;
RGB(r : Int, g : Int, b : Int);
}
The above enum can ...
UIView *view = [[UIView alloc] init];
[self.view addSubview:view];
//Use the function if you want to use height as constraint
[self addView:view onParentView:self.view withHeight:200.f];
//Use this function if you want to add view with respect to parent and should resize with it
[self a...
2.1.3
1. Preview Different Devices
There is a preview panel at the right of the android studio. In thispanel there is a button with device name with which you are previewing the UI of your app like this .
Click on small dropdown indicator of this and a floating panel will appear with all the pr...
To find out what packages your project directly depends on, you can simply use this command:
stack list-dependencies
This way you can find out what version of your dependencies where actually pulled down by stack.
Haskell projects frequently find themselves pulling in a lot of libraries indirec...
By going to Settings >> Keymap A window will popup showing All the Editor Actions with the their name and shortcuts. Some of the Editor Actions do not have shortcuts. So right click on that and add a new shortcut to that.
Check the image below
Most of the magic of destructuring uses the splat (*) operator.
ExampleResult / commenta, b = [0,1]a=0, b=1a, *rest = [0,1,2,3]a=0, rest=[1,2,3]a, * = [0,1,2,3]a=0 Equivalent to .first*, z = [0,1,2,3]z=3 Equivalent to .last
Here is a quick example of using multiple forms in one Django view.
from django.contrib import messages
from django.views.generic import TemplateView
from .forms import AddPostForm, AddCommentForm
from .models import Comment
class AddCommentView(TemplateView):
post_form_class = AddPo...
UISplitViewController must be the rootViewController of your application.
AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
self.window = [[UIWindow alloc] i...
Sometimes, if an action should be bind to a collection view's cell selection, you have to implement the UICollectionViewDelegate protocol.
Let's say the collection view is inside a UIViewController MyViewController.
Objective-C
In your MyViewController.h declares that it implements the UICollecti...
If you are using library that contains (for example) AwesomeViewController with a wrong status bar color you can try this:
let awesomeViewController = AwesomeViewController()
awesomeViewController.navigationBar.barStyle = .blackTranslucent // or other style
Makes an ajax request and updates only part of the view.
Bean.java
@ManagedBean
@ViewScoped
public class Bean {
public Date getCurrentDate() {
return new Date();
}
}
sample.xhtml
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns...
The image contained in the ImageView may not fit the exact size given to the container. In that case, the framework allows you to resize the image in a number of ways.
Center
<ImageView android:layout_width="20dp"
android:layout_height="20dp"
andr...
Scale the image uniformly (maintain the image's aspect ratio) so that both dimensions (width and height) of the image will be equal to or larger than the corresponding dimension of the view (minus padding).
Official Docs
When the image matches the proportions of the container:
When the image is...
Scale the image uniformly (maintain the image's aspect ratio) so that both dimensions (width and height) of the image will be equal to or less than the corresponding dimension of the view (minus padding).
Official Docs
It will center the image and resize it to the smaller size, if both container s...
