Mobile Develop

The controls created on the cell are placed in the judgment of the cell==nil, so that each time you come in, you will be able to avoid duplicate data creation, resulting in a more thick view.if (cell==Nil)

Android official Getting Started document [12] Start an activityStarting an ActivityStart an activityThis lesson teaches1.Understand the Lifecycle callbacks2.Specify Your App ' s Launcher Activity3.Create a New Instance4.Destroy the ActivityThis

@property type XXX can automatically generate a type _xxx; member variable;The corresponding setter and getter methods are also generated.You can control the generation of getter and setter methods through the following four types of parameters.1

Each activity has its own life cycle, which is opened and eventually closed.Four ways to end the current activity// Close Current Activity method one (most commonly used) finish (); // Close the current interface method two

What is modal? This is a question, what is modal? Simply put, you are traveling, suddenly the boss to call you to solve technical problems, very urgent. So you have to take care of the phone before you can travel. Or you want to watch

By dynamically loading the fragment implementation in an activity with 3 different layouts, look directly at it:In the general mode:Click Home Control:Code :androidmanifest.xml--did not make any changes to create the project by default

First, the callback functionA callback function is a function that is called through a function pointer. If you pass the pointer (address) of the function as an argument to another function, when the pointer is used to invoke the function it points

1. Applicable scenarios1) ContentProvider provides a unified interface for storing and reading data2) using ContentProvider, applications can share data3) Many of the data built into Android are used in the form of ContentProvider for developers to

The Android messaging mechanism is another form of "event handling", a mechanism designed to solve the multithreading problems of Android applications. The--android platform does not allow activity-initiated threads to access the interface

The Skstoreproductviewcontroller class is a subclass of Uiviewcontroller,  If you're familiar with View controller, That Skstoreproductviewcontroller is very simple to use. When you want to show users App store products, you need to: 1. Instantiate

////HYBJSONModel.h//Json2modeldemo////Created by Huangyibiao on 14-9-15.//Copyright (c) 2014 Home. All rights reserved.//#import/*! * @brief JSON into model, or convert model to JSON * @author Huangyibiao*/@interfaceHybjsonmodel:nsobject/*! * @brief

Objective-c's advantage is compatible with C + + code, so we can easily in the project to the C + + implementation of the library to use, but the use of the need to set some places, because there is no set up will bring a very strange problemHere

Today, using PHP to develop the data interface of the Android network, I found that thinkphp's I function (PHP $_post) does not get to androidpost data.The Android code is as follows:1map map =NewHashmap<>();2Map.put ("Itemid", This.

At the beginning of 2015, Google released a feature on Android performance optimization, with 16 short videos, each 3-5 minutes, to help developers create faster and better Android apps. The topic of the course not only introduces the underlying

Instanceof is a Java two-dollar operator, and ==,>,String s = "I AM an object!";Boolean IsObject = s instanceof Object;We declare a String object reference, point to a String object, and then use INSTANCOF to test whether the object it points to is

Ext.: http://blog.csdn.net/nmgchfzhzhg/article/details/8077133In the development of Android applications, it is sometimes necessary to limit the screen shift. You only need to include the Android:screenorientation attribute limit in the

The code to clean up the cache is as follows:Dispatch_async (Dispatch_get_global_queue (dispatch_queue_priority_default, 0), ^{NSString *cachpath = [Nssearchpathfordirectoriesindomains (Nscachesdirectory,nsuserdomainmask, YES) objectAtIndex:0]

1. Write in the previous words:Once inadvertently found a resource on the Csdn "Android high imitation Flappy Bird source code", download down run, the effect is very good, then go in a look at the code, obediently, good things ah, the whole game

Thoughtinshare Source: Http://www.cnblogs.com/thoughtInShare Welcome reprint, Please also keep this statement. Thank you!The 1.Android development environment requires the following three tools:(1) JRE (Java Runtime Environment)(2) ADT (Android

Networkcomms.net2.3.1 Open source version, based on GPL V3 protocol. Because the 3.x version of the source code can not be published, so based on this version of learning.3. There are many improvements and bug fixes in the X version, and there is