IOS

1 25 enhanced IOS appsProgramPerformance tips and tips (preliminary) Http://www.cocoachina.com/newbie/tutorial/2013/0408/5952.html 2. Build the real-machine environment for xcode Development (I have succeeded with the help of a Linux expert. I

Uiimageview * campfireview = [[uiimageview alloc] initwithframe: cgrectmake (4, 9, 14, 22)]; Campfireview. animationimages = [nsarray arraywithobjects: [Uiimage imagenamed: @ "sound_image1.png"], [Uiimage imagenamed: @ "sound_image2.png"],

1 Preface This article describes how to call block object by using functions and how to call block object by using block object.2. code example Testdemo. h #import @interface TestDemo : NSObject- (void) callSimpleBlock;- (void)

Make sure that the server is not cut by mistake. As a mobile app developer, You need to submit an app review to the app store. Quick approval can give you the opportunity. This is especially true for iOS app developers. The review of the Apple App

After you 've decided on the appearance of your icon, follow these guidelines as you create it:* Use the PNG format.* Use white with appropriate Alpha and no shadow.* Use anti-aliasing.* For toolbar and navigation bar icons, create an icon that

1. Preface After a burst of tangle and struggle, I finally decided to step into the IOS Mobile Terminal Development crowd. I can't simply say that I don't want to practice, but I need to connect theory with reality, I would like to express my

Document directory What is a 'framework' and why are they useful? What is a 'global' framework? Building a 'global' framework Apple has invested quite a bit of time into making it easy to compile for a number of different ubuntures in xcode.

Every time Apple releases a system, developers are busy working for a while, updating xcode to adapt to the new system: for example, ios4 supports retain and requires @ 2x; for example, ios5 does not support udid; for example, iOS 6 and iPhone 5

The official documents are described in more detail: Https://developer.apple.com/library/ios/#featuredarticles/ViewControllerPGforiPhoneOS/ViewLoadingandUnloading/ViewLoadingandUnloading.html Simulated memory warning: There are three methods to

There are several methods in IOS to solve the problem of mutex synchronization when multiple threads access the same memory address: Method 1, @ synchronized (ID anobject), (simplest method)The parameter object is automatically locked to ensure the

I. Overview For iPhone touch screen processing, before 3.2UiresponderThe following four methods are provided: -(Void) touchesbegan :( nsset *) touches withevent :( uievent *) event-(Void) touchescancelled :( nsset *) touches withevent :( uievent *)

[0. Brief introduction of block] Block is an extension of the C language introduced by ios4.0 + and Mac OS X 10.6 + to implement the features of anonymous functions. In Wikipedia, block is a feature that Apple Inc. adds to C, C ++, and objective-C,

Source code download: http://download.csdn.net/detail/x1135768777/4281079 -(Void) viewdidload {[Super viewdidload]; [[[self view] layer] setbackgroundcolor: [[uicolor blackcolor] cgcolor]; uiimage * balloon = [uiimage imagenamed: @ "1.png"]; //

I have been busy with projects for a long time and have not updated my blog. Just write what you learned on projection. Original Image: [[Self view] layer] setbackgroundcolor: [[uicolor blackcolor] cgcolor]; uiimage * balloon = [uiimage imagenamed:

1. Documents: Only files generated by the user, other data, and other files that cannot be re-created by other programs should be saved in the /Documents directory, and will be automatically backed up through iCloud. 2. Library: Data that can be

Cabasicanimation * flip = [cabasicanimation animationwithkeypath: @ "transform. Rotation. Y"]; Flip. tovalue = [nsnumber numberwithdouble:-m_pi]; Cabasicanimation * scale = [cabasicanimation animationwithkeypath: @ "transform. Scale"]; Scale.

Openurl usage: View plaincopyTo clipboardprint? [[Uiapplication sharedapplication] Openurl: [nsurl urlwithstring: appstring]; [[Uiapplication sharedapplication] Openurl: [nsurl urlwithstring: appstring]; The system appstring includes: View

Ios5.0 does not have an automatic application counting mechanism, nor does it have garbage collection functions like Java. We all need to manage and control the collection of objects by ourselves. This is a very troublesome task and the most common

1. Add the corresponding auto file (. TTF or. OTF) to the project directory, such as simkai. TTF. 2. Add a fonts provided by application in the-info. plist file. The value corresponding to item0 is simkai. TTF, and add multiple Auto Parts in

Document directory 4. uiswipegesturerecognizer) 5. uirotationgesturerecognizer (finger rotation operation on the screen) 6. uilongpressgesturerecognizer (long-pressed gesture) Uigesturerecognizer is an abstract class that defines the basic