ios 10 6

?? The model should provide a construction method that can pass in a dictionary parameter?-(instancetype) initwithdict: (nsdictionary*) dict;? + (instancetype) xxxwithdict: (nsdictionary*) dict;3.instancetype ? instancetype on a type representation, as with an ID , can represent any object type?? Instancetype can only be used on return value types and cannot be used as an ID on parameter types?? One benefit of instancetype than ID : The compiler detects the true type of instancetype 4. The proce

multiple objectsWhen the compiler is processing:Array = @[A, b, c];Compiler-Generated code:ID objects[] = {A, b, c};Nsuinteger count = sizeof (objects)/sizeof (ID);Array = [Nsarray arraywithobjects:objects count:count];Note that if the A,b,c object has nil, the runtime throws an exception, which is different from the original processing, so be careful when coding.NsdictionarySimilarly, for a dictionary of this data structure, there are many ways to initialize, we look at the new wording:Nsdicti

conditions:(1) When the last picture is displayed on the screen, the ImageView on the right is also the next stop. The picture should be the first one at the beginning;(2) When the screen shows the first picture at the beginning, the ImageView on the left is the last picture.In this way, three imageview are constantly changing, resulting in an infinite loop of image rotation. Reference:http://www.cnblogs.com/kenshincui/p/3913885.html There are some changes relative to the previous effect, mainl

NSString *saved = _name. Text; cgsize size = Cgsizezero; if ([[[[uidevice currentdevice] systemversion] floatvalue ] >=7.0) {size = [saved boundingrectwithsize:cgsizemake(in)options:Nsstringdrawingu Sesfontleading | Nsstringdrawinguseslinefragmentorigin attributes: @{nsfontattributename:FONT ()} Context:nil]. Size;} Else {size = [saved sizewithfont:FONT(constrainedtosize):cgsiz Emake(maxfloat,)];} _name. Width = size. width;iOS handles dynamic strin

Original address: xmppframework iOS development (6) chat room Chat Room // Initialize the chat room principal * roomjid = [xmppjid jidwithstring: room_jid]; xmpproom = [[xmpproom alloc] Principal: Self jid: roomjid]; [xmpproom activate: xmppstream [xmpproom adddelegate: Self delegatequeue: dispatch_get_main_queue ()]; // Join the chat room and use the nickname [xmpproom joinroomusingnickname: @ "quack" H

Original address: iOS 6 Apple map application (mapkit)-built-in Development This article is a comment on the Apple case regiondefiner. # Import "viewcontroller. H "# import" myannotation. H "@ implementation viewcontroller-(void) viewdidload {[Super viewdidload]; self. mainmapview = [[mkmapview alloc] init]; self. mainmapview. delegate = self; [self. mainmapview setuserinteractionenabled: Yes]; [self. main

Getting started with iOS development☞OC language · note 6, iosocThree main features of object-oriented: encapsulation, inheritance, polymorphism 1. Encapsulation 1.1 Basic Concepts Combine scattered things. In a broad sense, encapsulation refers to encapsulating code into functions, instance variables and methods into classes, and classes into frameworks .... Encapsulation in object orientation refers to

Enter 6 digits in the ios input box -(BOOL) textField :( UITextField *) textField shouldChangeCharactersInRange :( nsange) range replacementString :( NSString *) string {if (textField. tag = 11) {// new password if (range. location

(No. 00004) implementing the brick-hitting game for iOS (6): rebound Rod Another element of the brick-hitting game is the rebound rod. In this class, we will implement the rebound rod class.Create a bounce stick header file Create a Stick class in Xcode and add the following content to the header file: #import CCSprite.h@interface Stick : CCSprite+(instancetype)stickNormal;-(void)moveStickTo:(CGPoint)l

IOS development and learning # tab bar controller # (6) set the tab bar Controller If you do not need to dynamically create a tag Bar Controller, You need to place some controls from the image library. here you need to use the Tab Bar Controller, and then create two outlet variables to associate with the Drag Control. Now we will focus on how to set the Tab Bar Controller: (1) set the entry title Self.

); }];}Pros: 1) You can get all the information you need directly from the block, including subscript, value, etc. Especially relative to dictionaries, you don't need to do extra coding to get the value of both key and value.2) The ability to directly modify the type of the key or obj in the block as the real type, can eliminate the work of type conversion.3) The concurrency iteration function can be turned on by Nsenumerationconcurrent enumeration values.Description: Block-based traversal is al

(@ "-operation-download picture-%@", [Nsthread CurrentThread]); 16 //..... To continue the operation after downloading the picture NSLog (@ "--then download the second picture--"); }];19 //Create queue nsoperationqueue *queue=[[ Nsoperationqueue alloc]init];22 //Add tasks to the queue (auto-execute, auto-thread) [queue addoperation:operation];24}25 @endThe second way:1 #import "YYViewController.h" 2 3 @interface Yyviewcontroller () 4 5 @end

understood, and the previous addition of Bidswitchviewcontroller in BIDAppDelegate.h is the same.6) Associate Bidswitchviewcontroller and Switchview.xib select Switchview.xib in Project Navigator, select File ' Owner in Xib's DockThen change the class to Bidswitchviewcontroller in the identity inspector This associates the switchview.xib with the Bidswitchviewcontroller, if we choose Connections Inspector, will see the action:switchviews that we just

We could take advantage of Plist to bypass Trust relationship so as to extract data from a iDevice. Now it becomes a impossible mission in IOS.As you could see the iOS version is iOS 10.0.2.Now my workstation trust this iDevice, and the plist in Lockdown folder are right there.Let me show you how happen to IOS 10. I Po

Document directory About the author The operating system that powers Apple's iPhone and iPad devices, IOS, has proved incredibly popular with developers. A large part of this is almost certainly due to the opportunity that the app store gives developers to make money, but the great development tools that Apple provide, in the form of xcode and interface builder, and also the objective-C programming language, which

On iOS 10, lock screen status by pressing the power button to light the screen, touch the home button with your finger, actually the phone is unlocked, do not believe please see the following:Although the phone has been unlocked, but unlike iOS 9, the phone is still in the unlocking interface without entering the main screen, the system is still waiting: The user

; $layer.maskstobounds=YES; theLayer.bordercolor=Self.strokeColor.CGColor; theLayer.borderwidth=Self.strokewidth; theLayer.contents= (ID) Self.originalImage.CGImage; the [Self.layer Addsublayer:layer]; - in //set how photos are tiled the Switch(self.contenttype) { the Casecircleheadviewcontentresize: About { theLayer.contentsgravity =kcagravityresize; the } the Break; + CaseCircleheadviewcontentresizeaspect: - { theLayer.content