Mobile Develop

The simplest answer to an iOS native app is to always use PNG, unless you have very good reasons not to.When an iOS app is built, Xcode optimizes. png files in a way that does not optimize other file formats . It's pretty well-tuned.There are the

Grand Central Dispatch (GCD) is a solution for multi-core programming developed by Apple.The dispatch queue is divided into the following three types:1) Run the main queue in the main thread, obtained through Dispatch_get_main_queue./*!* @function

What's different about writing iOS apps 1. You can only run one application at a time: When the program is not active and not running in the background, it does not consume any CPU resources and therefore also disconnects the network. iOS allows

Articles are original, reproduced please indicate the source, without permission and the misappropriation of legal liability.It was written a long time ago, and it's a little wasted and shared.Written by: Li Wendonghttp://rayleeya.iteye.com/blog/1955

Replacing pictures in RadioButton is well-set in XML, but it's not easy to find out how beginners are set up in code. No, by looking at the original API to find two methods, Setcompounddrawables and Setcompounddrawableswithintrinsicbounds.Here's how

Tcp-long-connection-based-on-apache-minaBased on the Apache Mina TCP long connection implementation, can be used for Android Client push.Project GitHub Address: Https://github.com/sddyljsx/Android-tcp-long-connection-based-on-Apache-minaThe project

The mysterious iOS door opens, honey, are you ready for this? Let ' s go!OS x SystemThe 1.OS x system is an exclusive system developed by Apple for the Mac family, and the latest version is now 10.10.3.The 2.OS x system is based on UNIX systems.

Usually an Android program will correspond to multiple activities, for the end of an activity, usually we think of using finish (), finish is only for the activity, it just pushes the event into the background, does not immediately release memory,

H5 implementation Level progress barrequirements are as follows: Implement an animation progress bar, page one to implement a progress bar animation, because the app this page will often change, so did not use the trial Android or iOS to achieve,

Original address: ArcGIS Runtime for Android Development tutorial V2.0 (1) Basic Concepts-arcgis_mobile column-Blog channel-csdn.nethttp://blog.csdn.net/arcgis_mobile/article/details/8113183 1 , Basic Concepts 1.1 Android Introduction In November 20

One, httpclinet way 1, HTTP GET example: 1 public class testhttpgetmethod{2 public void Get () {3 BufferedReader in = null; 4 try{5 HttpClient client = new Defaulthttpclient (); 6 HttpGet request = new HttpGet (); 7 Request.seturi ("http://w26.

The Dalvik virtual machine is a major part of Google's Android platform for mobile devices. Virtual machines can run Java platform applications that are converted into a compact Dalvik executable format (. dex), which is suitable for systems with

Basic methods of ====view class = = = =SetBackgroundColor (int color)Set the background color of the attemptSetbackgrounddrawable (drawable D)Set the background picture of a viewSetminimumheight (int minheight)Setting the minimum height, the parent

The new study Spring3.0,angularjs and Bootstrap, has been considering if the three together. Today, in the process of trying, encountered a stumbling block.No mapping found for HTTP request with URI [/springmvc/js/bootstrap.min.js] The

First, let's look at the directory structure of the Android project, such as:Let's take a look at each folder for what?1, src: This needless to say, it is to save the Java source files directory;2, Gen: This folder is used to save auto-generated

What is serialization and deserialization?(1) noun explanationSerialization of Objects: the process of converting a Java object into a sequence of bytes and storing it in a storage medium.Deserialization of Objects: the process of reverting a

In this word we will apply the knowledge learned to the demo to add gesture recognition, first add a zoom function, followed by adding a drag function, so that the Villain's expression can be changed with our Fingers.first, to add a recognizer for

Original: when does layoutsubviews get called?It ' s important to optimize any UIView Layoutsubviews method you create, as it can be frequently called, and have the potent Ial for creating recursion (triggering a setneedslayout from Layoutsubviews

http://blog.csdn.net/daydreamingboy/article/details/7977098Implementation of simple push notifications (push Notification) on iOSAccording to this very good tutorial (http://www.raywenderlich.com/3443/apple-push-notification-services-tutorial-part-12

1. Client location via IP addresshttp://int.dpool.sina.com.cn/iplookup/iplookup.phpOutput: City 1-1-1 shenzhen, guangdong, China 2. Client gets latitude and longitude, call Server interface to get location3. Clients get latitude and