Mobile Develop

Android does not provide double-click or multiple-click events this time, we need to implement them.Thought: Use the array to record the system time when clicked, if the current click event occurs after 3 clicks and the current system time and the

WebKit the structure into layers when the page is drawn, and when the layer is large enough it becomes a large tiled layer. In this way, WebKit does not need to render the entire page each time the page structure changes, but renders the

Timer-related delay calls in iOS, common in NSObject PerformSelector:withObject:afterDelay: This method sets the timer in the current runloop when it is called, There is also a delay to configure the task directly using Nstimer . Both of these

Reference Blog: http://blog.csdn.net/woaifen3344/article/details/38352099Http://www.cnblogs.com/whyandinside/archive/2013/12/27/3493475.htmlTo make Uilabel display a different font, you need to set its Attributedtext propertyThe attribute is of type

Download the project after the @override comment method will be error, if the @override removed will not error. It is found that: @override annotations can only be used to override the methods of the inherited parent class in the jdk1.5 environment ,

Testing for iOSCedar, Specta, Kiwi, xctestThe difference between specta and Kiwi is that Kiwi contains all the functions of specta and Ocmock and Expeata.The role of the test framework:Because of the progress in the industry, we usually do not use

老师让研究一下PhoneGap。看一下iOS 和HTML CSS javascript的混合开发。研究了两天，搞出来点东西来记录一下。What is PhoneGap?PhoneGap是一个开源的开发框架。它允许使用标准的web技术如HTML5、CSS3、javascript进行跨平台开发。也就是使用开发手机app，就不需要一个iOS版本，一个Android版本了。用它一个就够了。What is

Reprint Please specify source: http://blog.csdn.net/l1028386804/article/details/474044531. Add c and C + + development plug-ins for eclipseThe install new software in HelpSelect Helios-http://download.eclipse.org/release/heliosWait to expand, select

Search for androidannotation in GitHub. There is also a very detailed explanation of the process. Includes configuration for the Eclipse version and INTELLJ. Because I am using Androidstudio, we explain the configuration of Androidstudio here.

Lazyload is lazy loading, understood as on-demand loading, is loaded when needed, to avoid loading and loading too much, consuming a lot of memoryTypically used when initializing arrays such as Nsarray,nsmutablearray;For example:@interface

Google has defined two version number attributes for the APK: Versioncode and Versionname, they have different uses.Versioncode: not visible to consumers. Use only for the application market, the program internal identification version number, infer

IOS the first choice of development learning is often self-study and training. Self-study is generally not superstitious or poor, it is self-evident. At the beginning of the study, encountered the novice friends experienced different, have just

The problem with DDMS unable to open the/data directory is usually due to no Read permission.Steps to resolve:1, using third-party software will be the root of the phone;2. Connect the phone to the computer via USB;3, open the Command Line window on

1, uiimage conversion to NSDataUIImage *aimage=[uiimage imagenamed:@ "Layne.png"]; NSData *imagedata = uiimagepngrepresentation (aimage);OrUIImage *aimage=[uiimage imagenamed:@ "Layne.png"]; NSData *imagedata = uiimagejpegrepresentation (aimage,1.0);

Main topic:In order to exercise his son Jiajia and wind to bring their son into a cave, the cave has n rooms, the Cave road is one-way. Each time wind chooses two rooms x and y, allowing his son to walk from room to room, (either from X->y or y->x),

Alertdialog.builder Builder = new Alertdialog.builder (dialogactivity.this,alertdialog.theme_traditional);//Traditional themeAlertdialog.builder Builder = new Alertdialog.builder (dialogactivity.this,alertdialog.theme_holo_dark);//Use a dark

reference:https://docs.djangoproject.com/en/1.8/intro/tutorial01/Writing your first Django app, part 1Let's learn by example.Throughout this tutorial, we'll walk you through the creation of a basic poll application.It ' ll consist of parts: A

Knowledge Explanation: In the code we are around low and DFN to DFS, so we must understand what low and DFN do? What is the use of this to master him.  1. dfn[] Traversal to this point of time 2. Low[] traverse to the shortest time that can be

http://spatialreference.org/First, locate the existing coordinates in the above Web site Srid, and then locate the target srid.Reference APISample codeNew Point (120.0, 30.0); = (point) Geometryengine.project (Point,

The sandbox mechanism (sandbox) in iOS is a security system that specifies that an application can only read files within a folder created for the app and cannot access content Elsewhere. All non-code files are saved in this place, such as slices,