IOS

# Import Int main (int argc, const char * argv []) {@ autoreleasepool {// Method 1: NSFileManager instance method to read data NSArray * paths = NSSearchPathForDirectoriesInDomains (ns=topdirectory, NSUserDomainMask, YES); NSString * thepath = [

# Import Int main (int argc, const char * argv []) {@ autoreleasepool {// obtain the program root directory NSString * filepath = NSHomeDirectory (); NSLog (@ "filepath program root directory: % @ ", filepath); // obtain the Documents directory

The ViewController application creates another XIB page on the first XIB page and calls it through the button-(IBAction) GoSecond :( id) sender {secondViewController * secVC = [[secondViewController alloc] initWithNibName: @ "secondViewController"

I have seen many netizens discuss the positioning of iOS devices. Here I will give a detailed introduction to the positioning principles of iPhone, iPad, and iPod, hoping to increase the knowledge and reduce misunderstandings, make better use of iOS

The navigation bar is often used during ios ui development. The default style is relatively simple, so you often need to modify the style of the navigation bar. Ios4: - (void)drawRect:(CGRect)rect { UIImage *image = [UIImage

There are many ways to respond to images on web pages. However, all the solutions I have encountered use JavaScript. This made me wonder whether it is feasible to implement image response without JavaScript. I proposed the following pure CSS

. NET Shocould I be concerned about PDB files? Async and await-Simplified-Internals Web Performance tricks for (mobile) web development Advanced Debugging Techniques in JavaScript-Part 3 ==And === operators of JavaScript in simple

These two days, I cracked the app on ios and copied all its resources to android for use. However, many resources on ios contain special characters not allowed by android, such as resources ending with * @2x.png. Here the Special Character @ is

In order to allow the parent view (map view) to rotate at will, the Child view looks for some solutions based on a fixed direction (vertical screen) display, and finally finds that iOS7 is actually very simple. -(BOOL)shouldAutorotate{

@ Property (weak, nonatomic) IBOutletUILabel * downLabelInfo; @ Property (weak, nonatomic) IBOutletUIImageView * imageView; @ End @ ImplementationViewController -(Void) viewDidLoad { [Super viewDidLoad]; NSString * url = @ "http://d.hiphotos.

You know that when reading the address book information, you need to reference the AddressBook and AddressBookUI frameworks, and then you can perform related operations. However, in iOS7, the address book information cannot be directly read like in

    When the list is rolled, some uitableviewcells are removed from the window, And UITableView puts the UITableViewCell outside the window into an object pool, waiting for reuse. When UITableView requires dataSource to return

1. exception preface Exception Handling and capturing in iOS is not as common as in other languages. I believe many iOS programmers know that it is more often used for memory detection and analysis, detects memory problems. The app crash is not

There are four statuses of touch events.   -(Void) touchesBegan :( NSSet *) touches withEvent :( UIEvent *) event -(Void) touchesMoved :( NSSet *) touches withEvent :( UIEvent *) event; // This method will be called repeatedly during finger movement

_ Block variables and objects_ Block id obj = []; _ block id _ strong obj = []; The above two lines of code are equivalent. When the ARC is valid, the ownership modifier is bound to the id and object type variables. The default value is the _ strong

1. It is wrong to say that building UITabBarController in ViewController is not feasible on the Internet, 2. Use the code to dynamically implement the function. Paste (I will not separate a part of the project) Handler + handler = "brush: java;"> //

Recently, you need to write a calendar control with a little DT interaction. The interaction details are skipped here. However, complicated controls are also assembled by basic spare parts. The most basic one here is the calendar control. First: It

Question 1: error message: Check dependenciesCode Sign error: No matching provisioning profiles found: None of the valid provisioning profiles allowed the specified capabilities: inAppPurchase.CodeSign error: code signing is required for product

A third-party class library is used. For the Navigation of the slide side, if you want to hide one of the viewcontrollers in a view of the project, no good method is found because you cannot find the Navigation when the third-party class loads.

I have previously written something about runtime. This time, I used runtime to get something that Apple officially didn't want you to get, such as the control attributes inside the status bar. This article uses runtime to show you the control that