Mobile Develop

The so-called Unit Test (also known as the module test, unit testing) is for the program module (the smallest unit of software design) for the correctness of testing work. In fact, we developed a program to implement a function of the time we also

Local Storage LocstorageMethod:1.appcan.locstorage.getval (Key) gets the value that the key holds in the Localstorage// gets the saved colorappcan.locStorage.getVal (' color ');// returns the saved color value2.appcan.locstorage.setval (Key, Val) to

The software main interface adopts Fragment+viewpager composition. After the point is opened, it will automatically use the URL class to crawl the school News page, then extract the information from the webpage, use WebView to loaddata the main

1.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 objectIf obj is nil:[obj message]

-The common choice must be fulfilled by the two protocols that are agreed to implement. One for the data source protocol-the Trust agreement is responsible for controlling the UIof the control, event response , and implementing optional-The data

Run the Hello World demoRun D:\Program files\android\android Studio\binSelect Create a projectA series of choices appearsIf the following problems do not occur, skip directly overNote: If the restart is not good, skill all Android Studio processesIf

Adb-help HelpADB devices View all devicesAdb-s "emulator-5554" get-state for specific device operationsadb-s emulator-5554 kill-server shutdown SimulatorAdb-s emulator-5554 Start-server Open SimulatorADB push D:\456.txt/data/app/123.txt to copy

1 Open Source Chinese client uses the database part of the source code under the Net.oschina.app.db package, two classes one is used to manage the creation of the database class Databasehelper, inherit Sqliteopenhelper, and the other is used for

When parsing JSON data, it often resolves to jsonobject, and Jsonobject is unordered, but if you want to make him orderly, you add an attribute, sort, and then sort by the size of the sort value in each jsonobject.This simplifies the sorting of map

Starting in http://blog.csdn.net/pwiling/article/details/47682413, no reprintSeveral times before in the program encountered Android broadcast, always have this question: often in the broadcast activity inside the dynamic registration, dynamic

1. Practice service Start () method to open a service, no matter how to open the button, is not open the service services, the console also does not have error messages,The app does not flash, and the code is just a few lines away. I couldn't find

Long long ago, to the college to do an address book app needs to have an upload image function, pondering, racked up later still did not solve (student time things), so directly upload the original image, a picture 2M to 3M, so that my application

Set the entire line of code to move up or down:Find your own configuration file in Xcode:/applications/xcode.app/contents/frameworks/idekit.framework/versions/a/Resources/idetextkeybindingset.plistEdit the Idetextkeybindingset.plist with text and

For beginners of the developers, for assign, retain, copy, strong, weak usage and meaning may not be very clear, I have studied this problem for a long time, write a blog, Qiao Qiao code, let's look at it!Define a student class first:#import

1, according to the text content in the label word wrap display method1>, recognize two properties　　　　@property(nonatomic) nsinteger numberoflines; 　　　　@property(nonatomic) nslinebreakmode linebreakmode; Where Nslinebreakmode is an enumeration

1. Linear Layout LinearLayoutCommon Properties:Android:gravity to set the alignment of child controlsAndroid:orientation arrangement (divided into horizontal and vertical arrangement)Android:layout_gravity Setting the alignment relative to the

Burning Bridges Time limit: 5 Seconds Memory Limit: 32768 KB Ferry Kingdom is a nice little country located on N Islands that's connected by M bridges. All bridges is very beautiful and is loved by everyone in the kingdom.

1. Creating a custom Xib2. Drag a UITableViewCell and drag the control above3. Binding class Settings Identifier4. Use uinib *nib = [uinib nibwithnibname:@ "customtableviewcell" Bundle:nil]; [Self registernib:nib

Today the nest in the bedroom is also ok, came to work overtime, to try to complete the layout of the app to my Task. It's going to be off Soon. Let's show you a little bit of work First.alas, I found a major bug, which was run on the Iphone6

√ Overview1. Key Value Code KVC2. Key-value Monitoring KVO√ key value code KVCThe KVC method is provided by the nskeyvaluecoding protocol, and NSObject implements the protocol, which means that almost all objects in OBJC support KVC