Mobile Develop

-(NSString *) savefiletodocuments: (NSString *) url{//nsstring *url = @ "http://172.28.250.70/ad/20140210151602.jpg";NSString*filename =[url lastpathcomponent]; NSString*resultfilepath =@""; if(Url.length >7) {NSString*destfolderpath =

The Android app was originally developed by Google for the Linux platform-based open-source phone operating system. It includes operating systems, user interfaces, and applications, and Android includes a core library that provides most of the

All mobile operating systems have a fatal disadvantage: apps are vulnerable to interruptions, such as a call or lock screen that can cause the app to go backstage or even be terminated.There are a number of other similar situations that can cause

The map control Mkmapview is often used in iOS development and can be used to get the latitude and longitude of pity Dorado when you click on a point in the Mkmapview as follows:If a mkmapview is declared a Mymapview1, add a gesture in the map, this

Perhaps before the project is outsourced to do, now need to re-develop a new version, data structure, the interface effect is very different, the novice small white you need to pay attention to a few points. Use the same package name and

1. Introduction:Linear layout Manager uses linear management of the controls or layouts in which they resideCommon Properties of 2.LinearLayoutAndroid:orientation = "vertical"--this property determines how the sub-class control is arranged (vertical:

After Android 3.0, the socket or other network operation cannot be written in the main thread. So I have to put the socket operation to unload the thread to debug ....But Java threads are hard to write. Finally find a simple, and then write

If you've ever used interface Builder to create a complex, very multi-interface application, you'll see how big the storyboards files are going to be at the end. This is why I do not like to use storyboards in large projects, he will quickly become

This method assumes that the phone needs rootTools to use:1. Knife Cloud (Local global agent build tool)2.www script file (built-in IP and spoofing method, different places need different files, selection mode is not the same)3.RE Manager (System

1 , overviewWhat is Uidynamic?Uidynamic is a new technology introduced from iOS 7 and belongs to the Uikit framework.Can be thought of as a physics engine that can simulate and emulate physical phenomena in real life. For example: gravity, elastic

Article from: Http://blog.csdn.net/intbirdCompared to Android and JS Interactive, iOS and JS to interact is more convenient;For Android and JS to interact, see here:http://blog.csdn.net/intbird/article/details/42295453Android and JS to interact with

question: Android sequence opens multiple activity, how can I return to the first activity (the General homepage)? scenario: If a opens B, B opens C, C opens D, and then if you return from D to a, and clear B, C, D? a very stupid way to do this is:

1 , How to play a videoiOS provides MPMoviePlayerController, Mpmovieplayerviewcontroller two classes that can be used to easily play video and network streaming \ Network audio.Tip: Network audio is also played using this controller. Youtobe is

Nil: null pointer to object in OCNil: null pointer to class in OCNULL: Pointer to a different type of null pointer, such as a C-type memory pointerNSNull: An object that represents a null value in a collection object[NSNull null] usually acts as a

1. About TextFieldThere are two options when doing something, such as handling an account or password when logged in.① login button can be clicked, but will use Alertview to prompt "account or password is empty" message.② at this time the login

This app is a combination of storyboard+code, the main focus is:1.segue Pass picture values.In 2.Autolayout, you can use the lower-right triangle notation to use the Add Missing constraints to approximate the constraints to accommodate different

Recently doing something that has download zip, just the server sent over is binary, need to according to binary to determine what type of file, thereby saving operations. At first it was not understood, and it was later discovered that the first 2

There are two common ways to operate on a database:1, in the code to build a library, build a table;2, directly set up the relevant libraries, tables, copy the DB file to the assets directory;Now let's look at the second method:Privatestring

"MindManager" learning the "uitableview-table view" of the iOS series, the mind map shows most of the basic functions and knowledge of the uitableview-table view, each part has a code explanation showing the clear outlines of uitableview, The editor

The length method of NSString can handle international strings accurately, such as strings containing russian, chinese, or Japanese characters, and strings using the Unicode international character Standard. Handling these international strings in C