IOS

A playable ios game source code. There are many stars on the screen. When the sphere falls, you need to draw lines on the screen to let the ball bounce and then eat the little stars, if the sphere is not used, it will fail. The game has many

# Import @ Implementation NSObject (PropertyListing) /* Obtain all attributes of an object */ -(NSDictionary *) properties_aps { NSMutableDictionary * props = [NSMutableDictionary dictionary]; Unsigned int outCount, I; Objc_property_t *

Function call Objective-C is a dynamic language. A function is composed of a selector (SEL) and an implement (IML. Selector is equivalent to the house number, and Implement is the real household (function implementation ). Like in real life, a house

If the Status bar is black during iOS 7 startup, you can change the Status bar style to white in the following ways: Add Status bar style in plist of the project and change the style value. The default value is Gray style. You can select

BUG Description: Direct access to objective-c's isa is deprecated in favor of object_setClass () and object_getClass () Solution: In Build Settings of target, Change Build ActiveArchitecture Only to YES. Processing result: running successfully Other

  　　 　　　　 　　 - ( - (IBAction)testNetStatus:( NSString *site = Reachability *reach = [self showAlert:[NSString stringWithFormat:

This is an interesting question. How many times did the Car2 engine replicate during CAR2 replication? Why? This issue involves in-depth replication, attribute applications, and memory sorting. The result is interesting. The answer is three times. #

1. Check network connection Reachablity Used to check whether the network connection is available: including WIFI and WWAN (3G/EDGE/CDMA, etc.) 2 Working Mode But now there are better alternatives, better compatibility than Apple, and support for

1. In this case, the device type is obtained at a higher level. iPhone, iPod, and iPad are returned. Suitable for low requirements. NSString *deviceType = [[UIDevice currentDevice] model]; 2. This is the method for obtaining the device type in

Recently, there is a need to swing the UIView around the Y axis. First, we thought of using CATransform3D for rotation. However, the following two problems are encountered during use. Problem 1: After rotation, the target View can only see half of

Java is used for IOS push. There are two famous open-source jar packages: javapns and notnoop.For javapns, we have previously introduced Memory leakage. This problem is serious, as shown in:1. The pushed consumer y will be saved and not recycled.2.

CategoryBefore talking about classification, We can first explore why there is a classification mechanism in OC. What are the benefits? Assume that you have received a large project: Calculate the sum and difference of two integers. When you receive

- (UIImage *)fixOrientation:(UIImage *)srcImg { if (srcImg.imageOrientation == UIImageOrientationUp) return srcImg; CGAffineTransform transform = CGAffineTransformIdentity; switch (srcImg.imageOrientation) { case

1. AppDelegate. h VcD4KPHAgY2xhc3M9 "p1"> 2. AppDelegate. m 3. ViewController. h 4. ViewController. m # Import "ViewController. h" @ Interface ViewController () @ End @ Implementation ViewController @ Synthesize bilField; @

1. After the Xcode tool is installed, it will bring with it the frameworks that are commonly used in development. The storage address path is: /Applications/Xcode. app/Contents/Developer/Platforms/iPhoneOS.

Let's talk about the adaptation between different ios versions. Let's talk about one thing first: In xcode, there is one thing called targets. Apple's official documentation says this: A target specifies a product to build and contains the

Zookeeper I encountered a conventional problem during ios development. UITextField was masked by the keyboard. I searched some materials on the Internet and found two solutions written by my predecessors. solution 1: workshop? Mod = space & uid = 107

For Xcode 5, click the Project Name> Build Settings> Search for ubuntures. The original value is Standard ubuntures (armv7, armv7s, arm64). Click this value, in the drop-down list box, select Standard ubuntures (armv7, armv7s), save the project, and

1. Problems with upgrading to Mac 10.9.1 and Xcode to 5: 1) what to do before upgrading: ① Upgrade/reinstall iOSOpenDev and enter xcode-select --switch (xcode_developer_path) For example xcode-select --switch

Use of NavigationBar 1. // use the setnavigationbarhidmethod of the navigation controller to hide the navigation bar [Self. navigationControllersetNavigationBarHidden: YES];   2. // the size of the navigation bar in the navigation controller is