Mobile Develop

This pointer always points to an object that can be roughly divided into the following four types:1, method invocation as an object (this points to the object)2, as a normal function callWhen a function is not called as an object's property, that is,

Today continue to analyze the source code of Flappy Bird. Revisit the directory structure of the source code.In the first chapter of this series we analyzed the Game.js file, which is the architecture of the entire program. This article we look at

Toast.maketext (Mainactivity.this,message.obj.tostring (), Toast.length_short). Show ();This code cannot be placed directly in thepublic void ShowMessage (String msg) { LOG.E ("-------", msg); And this is what you call it from the worker

Usually we add a fillet to the button or UIView is implemented by the following codeself.button.layer.cornerradius=10;But if you're using a story version or xib to design a view, there's actually another more powerful way to set a fillet for such a

Implement a page jump.You can Specify a method under the button buttons in the XML layout. Android:onclick = "SendMessage"The SendMessage method is then defined in the corresponding Java file . Public void SendMessage () {Intent new Intent ();

In front of that Zhang Hybrid development experience someone asked how to solve the problem of not onjsprompt back and forth to tune JS function. In fact, it is simple to open a thread in your Jscalljava callback function to load JS code:1 wb.post

A simple understanding of circular references:A reference to B,b and a, both sides maintain a reference to each other, resulting in any time the reference count is not 0, always cannot be released.One: Block1.ARC Environment: Use __weak to declare a

Web request technology in iOS development is already a must-have technology for mobile apps, and file transfer is the focus in the network. Network File transfer to the mobile client is mainly divided into file upload and download. As a developer,

First of all, Android is based on the Java language, so install the Java Runtime Environment first   Install javajdk to download JAVAJDK installation configuration Java environment variable detailed Baidu a lot of Please refer to

Xcode upgrade to 7.0,ios upgrade to 9.0, found that the original setting does not rotate the method is invalid. The following settings are required for online discovery:1. Set inside the Viewcontroller/*iOS6 is discarded, using the next two methods,

The last time we introduced the Delete Feature and the dialog dialog box for Eatwhat, today we use SQLite for local data storage.First, we define a SQL helper class Shopinfoopenhelper inherit Sqliteopenhelper.public class Shopinfoopenhelper extends

1. Storing configuration information with NsuserdefaultsNote: This time the use of Nsuserdefaults storage information is not considered security issues under the premise.In two cases:1. If it is sensitive information such as password user name,

7.Bezier curveNeed to Ccbezierconfig structure, set 2 control points and one end point1 ccbezierconfig BC; 2 bc.controlpoint_1 = VEC2 (+--); 3 bc.controlpoint_2 = Vec2 (.); 4 bc.endposition = Vec2 (N/a); 5 6 Bezierto *bz = bezierto::create (2

1. Intent.settag (Intent.flag_activity_new_task) is required to start an activity outside the context, because the activity needs to be placed in the task stack after it is started. In general, click the app icon directly from the desktop to enter

As if overnight, the entire industry suddenly woke up and realized that it is not realistic to ask users to always stay connected to the Internet.The entire consumer electronics industry has spent the last 20 years working to drive everything

 group number: 49690168 Turn:Http://blog.csdn.net/liangliang103377/article/details/40078015iOS8 introduced several new "controllers", Mainly to the similar before the Uialertview into a uialertcontroller, this casual change, it seems that I

IOS animation effect is very much, we may encounter many animation effects in development, we will use the core animation frame coreanimation, the core animation has a lot of animation effect, Are all inside the quartzcore.framework frame, today we

1, server backstage use servlet development, here no longer introduced.2, the network development do not forget to add access to the network in the configuration file permissions3, network requests, processing can not be carried out in the main

call method : Grammar:Call ([thisobj[,arg1[, arg2[, [,. argN]]])Definition: invokes one method of an object, replacing the current object with another Object.DescriptionThe call method can be used to invoke a method in place of another object.The

Www.android-doc.com: Chinese help document (not recommended, really do not understand English can look a little bit)1.Service: a component running in the background to run code that runs in the background, and the service is activity without a