KVO for IOS SDK
Preface: KVC and KVO are tools that help us navigate the dynamic features of objective C. KVO is based on KVC, so if you are not familiar with KVC, you can refer to my blog. Here I will not repeat KVC.Content of this article
KVO DefinitionTypical use cases of KVO.Manual KVOWhat KVO should do
Definition of a KVO
KVO provides a key-value-observing mechanism, that is, you can obtain value
Understanding about Connection
The development in iOS SDK is similar to the Dialog Based Application development in Windows. It is to drag some page elements to the window and then write the corresponding code. However, why is no Connection established in Windows? Is it because Windows does not need to be created? Obviously not. If the page element is not associated with the application, it cannot comple
NSFileManager for iOS SDK
NSFileManager provides a convenient method for file operations, including file and directory creation, copying, cutting, and deletion.This article will explain in detail how to perform these basic operations.
When using defaultManager, you actually obtain a singleton (same object), which is thread-safe. In most cases, you can use this. This topic describes the basic operations. I
Objective
Recently the project is busy ready to Baidu map methods are familiar with, write a demo and also write down the blog to record
Simulator settings
I directly copy the picture I wrote before, too lazy ...
Get Baidu Map key
Enable HTTP to work properly
Let Baidu map to normal use
Verify that you have added the Mapapi.bundle file in your project and added the correct method to delete or change the contents of the Files folder.
Configuri
IOS: third-party logon, sharing, and usage of umeng SDK, iossdk
# Import "UMSocial. h "# import" UMSocialWechatHandler. h "# import" UMSocialQQHandler. h "# import" UMSocialSinaHandler. h "// umeng statistics // umeng statistical analysis is a professional mobile application statistical analysis tool dedicated to providing developers with real-time and stable mobile application statistical analysis services
) { return; } [self willChangeValueForKey:@"age"]; _age = age; [self didChangeValueForKey:@"age"];}Four kvo to mention a few kvo and contextBecause the context is often used to differentiate between different kvo, the uniqueness of the context is important. In general, I use a static variable defined in the current. m file.staticvoid0;KVO and threadingKVO response and KVO observed value changes are on a thread, so, most of the time, don't mix kvo with multithreading. Unless yo
: *devicetoken apns devicetoken return value: boolean is set successfully. Clears the device token associated with the current userMethod Name:-(BOOL)Unbinddevicetoken:(nsstring*)devicetoken Success:(void (^) ())success fail:(void (^)()) fail function:im server no longer pushes offline message parameter description for this device : *devicetoken APNS Devicetoken *accesstoken User's current accesstoken return value:boolean is cleared successfully. Imkit
In addition to imsdk necessa
Explanation of ios sdk-NSDictionary
Original Blog, reprinted, please indicate the sourceBlog.csdn.net/hello_hwc
The content of this article is as follows:1. Overview of NSDictionary and NSMutableDictionary2. Examples of common attribute methods (this document does not involve uncommon attributes)
An overview of NSDictionary/NSMutableDictionary NSDictionary provides a key-value data storage method. In genera
Yesterday, with the real machine test Project This error, the online collection of some information, so the experience to share their own to help more people.The first step:Check if your 1 and 2 are filled in correctly, if you are running someone else's project, Bundleidentifier want to be consistent with your xcode before filling in, for example, I filled in the com.baidu.xxxx before, but I really tested the com.alibaba.xxx, This will be inconsistent and may result in an errorStep Two:In Bulid
Yesterday, with the real machine test Project This error, the online collection of some information, so the experience to share their own to help more people.The first step:Check if your 1 and 2 are filled in correctly, if you are running someone else's project, Bundleidentifier want to be consistent with your xcode before filling in, for example, I filled in the com.baidu.xxxx before, but I really tested the com.alibaba.xxx, This will be inconsistent and may result in an errorStep Two:In Bulid
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