Mobile Develop

6, you can use the attribute @property syntax to define the data encapsulated in the object.Specify the correct semantics required for data storage by "traits".When setting an instance variable corresponding to a property, be sure to follow the

Previously written about TCP and UDP data transmission code, such as the use of TCP transmission of audio and video packets, peer-to-hole use of UDP and so on. After writing it, I dropped it immediately, without summing it up. Recently prepared to

Cause: UIView's Touch event was captured by Uiscrollview, so the touch event in UIView did not respond —————— workaround: Upload Uiscrollview captured touch events; ———— Add category to Uiscrollview: uiscrollview+uitouch.hCode:#import

21. Understanding OBJECTIVE-C Error Model@throw [nsexception exceptionwithname:nsinternalinconsistencyexception reason:@ "must be Overriden" UserInfo:nil] Exceptions are only used to handle critical errors.In the case of a less serious error, the

procedureImglistmousedown (sender:tobject; Button:tmousebutton; Shift:tshiftstate; X, Y:integer);Private procedureWmnchittest (varMsg:twmnchittest);messagewm_nchittest;procedureTfrmstarthit.wmnchittest

There are two types of data storage: memory and Flash. Memory storage is temporary, run-time efficient, but efficient, while Flash is a persistent storage, but produces I/O consumption, the efficiency is relatively low.Archive: Transfer memory data

Memory leaks caused by threadsThe memory leaks that are caused by threads are usually common, as the following two examples may be written by everyone:—————— test1New Asynctask () {@Overrideprotected void Doinbackground (void ... params)

Apple officially recommends that we use storyboard to build all the UI, and storyboard is a very mature tool. Using storyboard to build all the interface, we can quickly build a complex interface, which means that we can save a lot of time. We can

Android packaging confusion encountered Baidu map error problemFirst, add the following code to the Project.properitiesTarget=android-19proguard.config=proguard.cfgThen add the following code to the proguard.cfg of the projectNote The map version

In the project sometimes encounter library not found For-lpods ( here ipods refers to your specific third-party library ) problemThe reason for this error is that Xcode cannot find the library at compile time, resulting in the project not

For performance optimization This knowledge point, is too broad, the blogger himself has been very concerned about this aspect of learning, and for performance optimization It includes very very very many aspects, such as: I/O optimization, network

GCD formerly known as: Grand Central Dispatch (GCD) is a multi-core programming solution developed by Apple.The dispatch queue is divided into the following three types:1) Run the main queue in the main thread, obtained through

20.UIPrintFormatterUiprintformatter when printing a formatted abstract base class: demonstrates that traditional printable content objects can span page boundaries. Due to the printing format, the print system can automatically print the type

with Fiddler on the mobile phone program to grab the packet, there are a lot of information on the Internet, here to write down for backup.  Prerequisites:1. Be sure to install fiddler computer and phone in the same WiFi environmentNote: If your PC

The first step:Adding network permissions in Mainfest.xmlIf you're accessing local, you don't need to add this permission.Step Two:Load the locally written HTML file (define the method Funfromjs () provided to Android in JS, and the object interface

1. DescriptionMany people in the report development will face how to add the server this problem, then how to implement the mobile side to add the server to view the report? Based on my own experience of developing reports, do a detailed

The data storage methods used in the development of Android project are: Networked storage, SQLite storage, file storage and sharedpreferences storage, four kinds of storage methods corresponding to the demo others are Networkdemo, Sqlitedemo,

  Directory (?) [+]After repeated study and comparison, individuals feel that learning knowledge with problems is the most effective way of learning, so the text on the way to ask questions to tell the fragment framework implementation way.1. What

There are seven callback methods defined in the activity class that cover every aspect of the active life cycle, and here I come to one by oneThe following seven methods are described.1. OnCreate ()This method you have seen many times, each activity

App design add tag design summary during video/image/Text Publishingtags, mainly to the user upload content to add tags, such tags mainly have a few functions:1. Easy to find similar tag friends, improve product social properties;2. Easy to