IOS program starts
The underlying environment setup before the main function (Code copying, memory opening, and other operations related to starting a process) is not described. We start with the main function.
1 main Function
Int main (int argc,
Assertion failure in UITableViewCell layoutSublayersOfLayer solution, assertionfailure
The iOS6 device encountered a problem when updating UITableViewCell.
Assertion failure in-[UITableViewCell layoutSublayersOfLayer:],/SourceCache/UIKit/UIKit-2380
IOS View Programming Guide notesThe program we see
For all IOS apps, the content we see is displayed by UIView.
UIView is like a scene, UIWindow is like a stage, and UIView is shown on the stage of UIWindow, so that we can see a variety of UI
Proxy and Protocol (delegate) in ios)
1. Understand protocols and Proxies
Protocol
Protocol format: @ protocol Keyword: protocol Declaration
For example
@protocol CustomAlertViewDelegate
Protocol Method
@ Optional
// The
Problems with unique identifier of UUID device implemented by keyChain in iOS
Put it into question:
Recently, when studying how to obtain unique device identifiers, we found that using the keyChain officially recommended by Apple is quite
IOS UI07 _ pass value on the Interface
//// MainViewController. m // UI07 _ input value /// Created by dllo on 15/8/6. // Copyright (c) 2015 zhozhicheng. all rights reserved. // # import MainViewController. h # import SecondViewController. h // 4.
The event transfer and response chains in iOS and ios
First, let's take a look at the process of event generation and delivery in iOS:
1. After a touch event occurs, the system adds the event to a queue event managed by UIApplication.
2.
IOS calls the browser safariNote: Apple mobile phone testing (real machine testing) is required as follows)I. Two ways to make a call// Call method 1 (a prompt is displayed, indicating whether to call or not. This is recommended)
UIWebView *
Mac command, view mac address commandAn error occurred while resuming the Launchpad icon.
To restore the Launchpad, You need to enable the terminal application (in the application/terminal), and then enter the following command:Defaults write
Objective-C specifications for formatting
Objective-C format strings and C # are very different. Let's take a look at them.
InC #We can do this in a few simple examples:
1 // format the output string 2 string word = "world"; 3 string test = string.
Xcode development tools
Yesterday I opened Xcode and found that the mouse cursor turned into a black block and the Content could not be edited. In addition, there was an additional box in the Content area showing the file path, for example:
IOS-basic development knowledge
The ability of an object to obtain its type at runtime is called introspection. There are multiple methods to achieve this in introspection. Determine the object type-(BOOL) isKindOfClass: classObj determine whether
Record the methods for identifying regular jailbreak and regular jailbreak
Apple attaches great importance to product security, so it designs a complex security mechanism for users. This makes freedom-loving and open-minded programmers extremely
OC, Zhongshan oc
@ Interface Car: NSObject {
@ Public
Int _ wheels;
Int _ speed;
}
-(Void) run;
@ End
@ Implementation Car
-(Void) run {
NSLog (@ "% d wheels, the car with the speed of % d is running", _ wheels, _ speed );
}
@ End
Void
Particle effect in iOS Animation04. Particle Animation 1. effect:
Randomly draw a path, click the start button, particle Animation2. Implementation ideas
1. Create a canvas to draw a path and customize the view.
2. Add a pan gesture to the custom
Animation lagging of the navigation controller in pushViewController,
When debugging the navigation controller yesterday, we found that the animation was choppy during push. The code for the choppy problem was as follows:
1-(void) tableView :(
[Study Notes] [OC language] NSString, ocnsstring
1. Fast creation of stringsNSStirng * str = @ "Hello ";
2. Create using static methods
3. Use % @ to output the stringNSString * name = @ "dssf ";NSLog (@ "My name is % @", name );
4. Code
1 # import
CocoaPods introduction, cocoapodsWhat is CocoaPods?
Many third-party open-source libraries, such as JSONKit and AFNetWorking, are frequently used when you develop iOS applications. A class library may use other class libraries. to use it, you must
IOS --- solve the problem that all interfaces in RESideMenu can slide sideways
RESideMenu is an easy-to-use slide layout class library in iOS. This type of Slide effect is used in many iOS projects.
You can add menu view controllers on both left
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