IOS

Blocked Processing Event address in: http://www.bkjia.com/kf/201203/121641.html Here are the restored processing events: Register a listener event: [[Nsnotifcencenterdefacenter] addObserver: selfselector: @ selector (keyboardWillBeHidden :) name:

# Import -(Void) getImgs {Dispatch_async (dispatch_get_main_queue (), ^ {NSAID utoreleasepool * pool = [[NSAID utoreleasepool alloc] init];ALAssetsLibraryAccessFailureBlock failureblock = ^ (NSError * myerror ){NSLog (@ "album Access failed =%@",

-(Void) setRefreshWindow {CGRect frame = CGRectMake (0.0, 0.0, 320.0, 20.0 );StatusbarWindow = [[UIWindow alloc] initWithFrame: frame];[StatusbarWindow setBackgroundColor: [UIColor clearColor];[StatusbarWindow setWindowLevel: UIWindowLevelStatusBar +

When the focus is on UITextField or UITextView, the keyboard will appear. If you want to click the background, the keyboard will disappear. This is a habit of connecting users to handheld devices. Of course there are many methods. Here I will

Create a view-based project named ViewTest; Write the following code in the ViewTestViewController. m file viewDidLoad method: [Cpp] // create a view UIView object to obtain the initialization screen size. UIScreen mainScreen indicates the internal

The following is an example of how to create a bookshelf. Let's talk about the differences between contentsize, contentoffset, and contentInset. [Plain]NSString * path = nil;UIImage * back = nil;NSString * str = nil;UIImage * aImage = nil; Path =

Use the code to create the Segmentarray control and set its attributes: [Cpp]/* segmentarray. h */ # Import  @ Interface segmentarray: UIViewController{// Create a control objectUISegmentedControl * segment;}@ Property (nonatomic, retain)

// NSString operations do not change their own values// Construct a stringNSString * szTmp = @ "A string"; // assign A value directly.SzTmp = nil; Int n = 5;NSString * szMyString = [NSString stringWithFormat: @ "The number is % d", n]; // The number

Today, I made a very low-level error. I want to set the default time of UIDatePickView to on the next day of the current time. My thoughts are as follows: first, obtain the current time-convert the current time to a string-extract the string, the

// Obtain the snapshot of a view-(UIImage *) getImageFromView :( UIView *) view {float width = [UIScreen mainScreen]. bounds. size. width; float height = [UIScreen mainScreen]. bounds. size. height; UIGraphicsBeginImageContext (CGSizeMake (width,

UIControl: I believe everyone is familiar with it. For example, the most common UIButton inherits from UIControl. By convention, let's take a look at why there is a UIControl class? When will it be used? After checking the document, we can see that

In iphone and ipad, you must be familiar with one thing: Settings. To put it bluntly, I learned how to set certain attributes of an app in Settings. In turn, some attribute values changed in the app will also be reflected in Settings, this function

Source Code address: https://github.com/thermogl/TISpringLoadedViews, This is complicated. I wrote a simplified version: Https://www.dropbox.com/s/sv3yhm8dovh0adq/SpringDemo.zip - ()simulateSpringWithDisplayLink:(CADisplayLink * (springEnabled && !=

What is multithreading? Multithreading is a lightweight method to implement multiple code execution paths in a single application. From a technical point of view, a thread is a combination of kernel-level and application-level data structures that

In the previous article, I talked about the basic usage of GCD. In this article, I will subscribe a little more about the 'synchronization' in GCD programming. Let's first look at the prototype: -() asyncMethodForPrint:(NSString *-(*arr = [NSArray

FMDB (https://github.com/ccgus/fmdb FMResultSet: Execute to query an FMDatabase result set, which is similar to the android Cursor.FMDatabaseQueue: this class is used when multiple threads are used to execute queries and updates.   db =

Library: the default setting of the storage program or other status information;   -(void)dirHome{ NSString *dirHome=NSHomeDirectory(); NSLog(@"app_home: %@",dirHome);}Directory path:     // Obtain the Documents directory-(NSString

The office machines were originally used by others, while Xcode was also downloaded by another user's account. When I tried to upgrade Xcode yesterday, I found that there was no password. In order not to disturb others, but to make it easier for me

 1)   - (void)httpAsynchronousRequest{ NSURL *url = [NSURL URLWithString:@"http://url"]; NSString *post=@"postData"; NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; NSMutableURLRequest

Two physical hosts are used to simulate the company and home network respectively. Both physical hosts are connected to a TP-link home Broadband Router to simulate the Internet environment. Two virtual NICs are bound to one vmwarevm respectively.