IOS

1. Common ways to handle arrays --------------------the//1 of an immutable group. Array creation NSString *S1 = @ "Zhangsan"; NSString *s2 = @ "Lisi"; NSString *S3 = @ "Wangwu"; (1) Nsarray *array1 = [[Nsarray alloc] initwithobjects:s1,s2,s3

Let's take a look at the implementation of a similar effect chart: Click on the image screen in the bottom right corner of the view comments will be flipped to the comment interface, the comment interface click the return button in the upper left

Effect Demo Baidu external selling Wave effect chart: You need to know. Cadisplaylink In short, it's a timer that uses the same brush frame and screen frequency to redraw the rendering page. How it is created: Cadisplaylink *timer =

Uicollectionviewcell Custom button Effect Characteristics 1. The ability to dynamically set the number of buttons displayed per line, and the placement of the control format 2. Implement the function of single or multiple selection, realize

manually layout the child view;Let's look at the effect chart below, the effect we are going to achieve today: Here we default to start with storyboard:First we're going to create a parent view on the white screen Superview (blue background),

Start with a picture of the knowledge system you should learn about iOS development: 1. Full picture As a background, you may encounter problems. , sliding back, the picture stopped for a while before slipping back. Reason: This kind of

Objective API not familiar with the cause of the problem, take it for granted to understand that there will be problems, here to record the use of Uicollectionview. Body 　　Trap One: minimumlinespacing, minimuminteritemspacing It's easy to set

-(void) Viewwillappear: (BOOL) animated { Nsarray *array=self.tabbarcontroller.view.subviews; UIView *view=array[2]; View.frame=cgrectmake (0, [UIScreen mainscreen].bounds.size.height, [UIScreen mainscreen,].bounds.size.width,); [UIView

What is an intermediary pattern? Object-oriented design encourages the spread of behavior across different objects, which can lead to the correlation of objects. In the worst-case scenario, all objects understand each other and manipulate each

Next we want to tell the picture of graffiti, we separate 1.1 point expansion, first to the picture underlinedCreate a project name Testaddline Next we add a picture to the default generated ViewcontrollerAdd a button at the same time

First, take a look at the effect of the map to achieve Second, small analysis, you can first look at the back! Third, the realization of tableview linkage is mainly divided into two situations 1, click on the left side of the cell to the

Nonsense not to say, directly to everyone on the key code, the specific code as described below: -(void) Searchbar: (Uisearchbar *) Searchbar textdidchange: (NSString *) SearchText//called when text changes (including CL Ear) { if

In iOS development, the most common ways to switch views are as follows: 1. Push, pop Use examples (Viewcontroller is assumed to be a controller that requires a jump): [Self.navigationcontroller Pushviewcontroller:viewcontroller

Fragmentation effect Diagram Mask View There is a Maskview attribute in the UIView, which is the most important variable we have today to implement animation. This property is used after iOS8 to represent the mask of the view. What is a mask? I

Let's take a look at the effect chart. Usage (similar to UITableView) Initialize Xdmulttableview #import "XDMultTableView.h" ... @property (nonatomic, ReadWrite, strong) Xdmulttableview *tableview; _tableview = [[Xdmulttableview alloc]

Use code to get app startup page picture   Applesystemservice.swift//Swift-animations////Created by youxianming on 16/8/11. COPYRIGHT©2016 year youxianming. All rights reserved. Import Uikit class Applesystemservice:nsobject {/** get

Objective Multi-View Sliding Click Switch This view is useful in many apps, I encapsulate this view, the outside only need to call an interface, can achieve this effect, use method and system Tabbarcontroller very similar. The outside world only

Scan two-dimensional code effects Source: Https://github.com/YouXianMing/Animations QRCodeView.h//QRCode////Created by youxianming on 16/7/7. copyright©2016 years xianming you. All rights reserved. #import #import @class Qrcodeview;

Let's take a step-by-step look at how to implement through the example code, first set up two model classes, a friend, a Friendgroup class. A local plist file used by the data source. The plist file contains attributes such as the Friendgroup

Not much to say, directly on the code A new class of UIImage, declared in. h + (UIImage *) Imagewithimage: (uiimage *) image content: (NSString *) content frame: (cgrect) frame; . m below + (UIImage *) Imagewithimage: (uiimage *