Mobile Develop

#import @implementation nsdictionary (Log)-(NSString *) Descriptionwithlocale: (ID) locale{nsmutablestring *str = [nsmutablestring string]; [str appendstring:@ "{\ n"]; Traverse the dictionary for all key-value pairs [self

Nil indicates that an object pointer is null for the object> Sample code:NSString *somestring = nil;Nsurl *someurl = nil;ID someobject = nil;if (Anotherobject = = nil)//do somethingNil indicates that a class pointer is empty, for class> Sample

Using the startup script init.rc in Android, you can perform simple operations in the initialization of the system.Init.rc Startup script path: system/core/rootdir/init.rcContent: Commands: Command Actions: Actions Triggers: Trigger

Here are two ways to stitch together JSON strings:+ (NSString *) Uiutilsfomatejsonwithdictionary: (Nsdictionary *) dic {Nsarray *keys = [dic AllKeys];NSString *string = [NSString string];For (NSString *key in keys) {NSString *value = [dic

IOS5 and later provide a more powerful tool uiappearance, we set some UI by uiappearance the global effect, so that it is easy to implement UI customization and the simplest to achieve a unified interface style, it provides the following two methods.

URL of the reference material Tian Wei-yu (Casa Taloyum) has a few articles about iOS architecture, first-class stick! Original blog link. Introduction to iOS Application architecture Application architecture of iOS on view Layer

Reprinted blog: http://www.2cto.com/kf/201503/381348.htmlAndroid4.4 new features, System status bar integration.The steps to be implemented include the following:1.android4.4 or later2. Set the app fullscreen:Method: Set Android:theme= "@android:

All along, I have always been "good enough" for the reason, rarely maintained their own one-click Packaging Projects. Recently contacted the prism of the SDK, feel the APK package uploaded to the prism server, the background to sub-package this

Main.xml android:layout_height= "Fill_parent" android:layout_width= "Fill_parent" android:orientation= "Vertical" > android:text= "Hello world!" android:background= "@drawable/bg_border" Android:textcolor= "#ffffff"/>Build Bg_

1.NSString there is a way to get the actual occupied height and width of the string. Can be used to UITableViewCell adaptiveBefore IOS7, use the below-(Cgsize) Sizewithfont: (Uifont *) font constrainedtosize: (cgsize) size Linebreakmode:

https://www.zybuluo.com/zzudhj/note/102067In the process of Android development, writing layout files often uses the Layout_weight property: from the literal meaning of the weight, ratio, proportional ...Use examples to see how Layout_weightExample1:

Create an iOS project in the OC-developed language, creating a new class inheritance with UIViewRewrite the method and implement//declare two instance variables inside the. h file{cgpoint _startpoint;//record the position when the click is

The previous three articles started with the most basic tcp,http protocol theory, and then introduced the two HTTP clients, httpclient and HttpURLConnection, used in Android development. In this article, let's take a look at the volley framework

Layer geometry Don't come here if you're not familiar with geometry --The signature of the entrance to Plato's College. In Chapter Two, we describe the image behind the layer, and some properties that control the coordinates and

Android Learning--context and Getapplicationcontext (): http://blog.csdn.net/janronehoo/article/details/7348566 Android Context Context You must know everything:http://blog.csdn.net/lmj623565791/article/details/40481055 Android avoids memory

Transferred from: http://www.cnblogs.com/nuistlr/archive/2012/09/07/2675649.htmlThe first thing to do is inherit Onitemlongclicklistenerpublic class Set_music extends listactivity implements onitemlongclicklistener{Then Set permissions:Getlistview ()

iOS 9, like every iteration of iOS, brings a lot of new features. Each version of the Uikit framework is changing, while iOS 9 is particularly Uistackview, which will fundamentally change the way developers create user interfaces on iOS. This

Bitcode0. Introduction to Bitcode1. Build Static library or framework via Xcode 7, while user build application using Xcode 7."the Xcode 7 build system defaults include enabling the Enable Bitcode build setting, but standard DebugThe or Release

-(void) createpdf: (UIImage *) img andtext: (nsstring *) text{2Nsarray *paths =nssearchpathfordirectoriesindomains (nsdocumentdirectory, nsuserdomainmask, YES);3NSString *savedirectory = [paths objectatindex:0]; 4NSString *savefilename =@"mypdf.pdf";

The Unicom base station interface supports base station positioning, and the base station location is queried by the CID and LAC of the mobile Unicom base Station.Interface Name: Unicom Base Station interfaceInterface Platform: aggregated