IOS

In recent years, I have not really done in-depth design of several complex mobile Internet products, and I have never studied ios and android Design guides. These two copies have been there for several years and will never be abandoned. Recently, I

Introduction: I recently learned some page Jump animation effects. The imatewithduration method of UIview is used. Of course, the previous beginAnimations can also be implemented.   For example, an image is gradually popped up from the lower part of

IOS's view does not have the click function, which is a big difference with Android. There is no way to customize it. I originally wanted to write it myself. I visited github and found that some of my colleagues have already written it, I don't need

UISearchBar for iPhone development is the content to be learned in this article. It mainly introduces the use of UISearchBar. Let's look at the details first. Questions about UISearchBar. 1. Modify the background color UISearchBar of UISearchBar.

Original question Description: Can I check whether ios users refuse to enable the default location? I need to implement the detection results and then display different view controllers according to their selection. Solution: If you use

UIToolbar * topView = [[UIToolbar alloc] initWithFrame: CGRectMake (0, 0,320, 30)]; [topView setBarStyle: UIBarStyleBlack]; // UIBarButtonItem * helloButton = [[UIBarButtonItem alloc] initWithTitle: @ "Hello" style: Custom target: self action: nil];

A simple arrangement of Implementation ideas: 1. Since we want to display translucent masked images, UIImageView must be indispensable. 2. To display multiple pages and Slide left and right, embed the UIImageView into UIScrollView and set the

Many Git commands are run in the command line, and managing Git in the command line has many advantages. However, the biggest drawback is that you need to remember these commands. Therefore, the Git GUI is very popular among some users. Xcode, as an

Inherits UILabel and reloads the drawTextInRect method. // 1. header file# Import @ Interface InsetsLabel: UILabel@ Property (nonatomic) UIEdgeInsets insets;-(Id) initWithFrame :( CGRect) frame andInsets: (UIEdgeInsets) insets;-(Id) initWithInsets:

NSDateFormatter class is required. 1. Convert string to date [Plain]NSDateFormatter * dateFormat = [[NSDateFormatter alloc] init]; // instantiate an NSDateFormatter object[DateFormat setDateFormat: @ "yyyy-MM-dd HH: mm: ss"]; // set the time format.

Create a scrollview and add an imageview to it. The main code for creating an imageView is as follows: @ Interface ImagePageView: UIView @ Property (nonatomic, retain) UIImageView * imageViewOne; @ Property (nonatomic, retain) UIImageView *

Generally, the following error message is displayed: 'reta' is unavailable: not available inautomatic reference counting mode.   Literally, arc prohibits the display of retain messages. In fact, after using ARC, you are not allowed to directly

1 PrefaceUIPickerView (selector) is also a control with a very high output rate. Similar to Select in HTML, let's take a look at this control today. 2 UIPickerView Overview Key code: . H file: [Plain]# Import  // UIPickerViewDataSource and

1 PrefaceUIBarButtonItem is a navigation bar button. On the left and right sides of the navigation bar, they have many different shapes and forms. 2. Code explanationZYViewController. m   [Plain](Void) viewDidLoad{[Super viewDidLoad];// Do any

ASIHTTPRequest can automatically cache downloaded data. This is useful in many cases: When you are offline, you cannot download the data again, and you need to access the data.After the data is downloaded last time, you only need to download the new

Because the iOS SDK is relatively low-level, developers have to do more physical work. Fortunately, there are many third-party class libraries that can be used to simplify a lot of unnecessary work. after careful discussion by the author team, they

KVC (Key Value Coding) KVO (Key Value Observing) KVB (Key Value Binding) KVO is an important mechanism of Cocoa. It provides methods to observe the changes of a certain attribute and greatly simplifies the code. This observation-the observed model

1 Preface Use the dispatch_queue_create function. Create your own, uniquely named dispatch queue. 2. code exampleZYAppDelegate. m   [Plain]-(BOOL) application :( UIApplication *) application didfinishlaunchingwitexceptions :( NSDictionary *)

1 PrefaceObtain the graphic environment, and use the CGContextMoveToPoint and CGContextAddLineToPoint functions to draw lines. 2. code exampleZYViewControllerView. m   [Plain]-(Void) drawRect :( CGRect) rect {[Self drawRooftopAtTopPointof:

1 PrefaceToday, we will learn how to use the UIView animation method to move your view. 2. code exampleZYViewController. m:   [Plain]-(Void) viewDidLoad{[Super viewDidLoad];// Do any additional setup after loading the view, typically from a