Mobile Develop

ARC Lazy mode#import"Singleton.h"@implementationSingletonStaticID _instance;This method is called internally by the/** * Alloc method */+ (Instancetype) Allocwithzone: (struct _nszone *) zone{if (_instance = =Nil) {Prevent frequent

/***************************************************************************** * Android get view width * Description: * The view's width is not available in the view default constructor and needs to be obtained in another way. * 2016-6-15 Shenzhen

1. Add prefix HeaderNote: Xcode 6 Apple removes the prefix Header by default to improve the reuse of the original file and facilitate migration. And can reduce the build time to some extent.Workaround:(1). Add a PCH file to the project and name

Original URL: http://blog.sina.com.cn/s/blog_6714fba70100wtx1.htmlHandle's Removecallbacks function is used in Android development, which functions as:But sometimes the actual work will appear removecallbacks invalid, solve it.Figure: Two buttons,

In a way that uses pure code In general, our custom classes inherit from UIView, first adding the required child controls to the view in the initWithFrame: method. Note that this is only added to the view, and the dimensions of each child

Below is a list of ways to do iOS layout: Layoutsubviews layoutifneeded Setneedslayout Setneedsdisplay DrawRect Sizethatfits SizeToFit Probably a few of the above, specific should have something

The Arrayadapter data adapter is described in "Android Common data Adapter Arrayadapter". However, there is a flaw, that is, the item icon is fixed the same, to show that each item's icon is not the same, then use SimpleadapterAfter you create a new

1. If you use the ListView control on a non-black background, Android may default to the background of this list control suddenly black when scrolling the ListView. This may lead to the black background of the program and the theme of the main

There are two ways to judge the network environment1, reachability2, afnetworking in AfnetworkreachabilitymanagerReachability steps(1) Import reachability class name(2) Initialize the Reachability object, HostName try to use a more stable network(3)

excerpted from http://www.oschina.net/code/snippet_1432190_46913 　　PHP determines if the user device is a mobile device

Then the previous article "Android uses layout inflater to create a View object", this article uses the common data adapter ArrayadapterAfter you create a new project, create a new List_item.xml file under the Layout folder, and then edit the layout

"FONT-SIZE:18PX;" >file[] Files =parentfile.listfiles (filefilter); //By Filefileter filter to get the desired type of sub-file under the Parentfile path arraylist fileList = new arraylist (); Deposit the required sub-file information into

This article is a basic article about thread pooling.First introduce a method to get the number of CPUs:int cpucount = Runtime.getruntime (). Availableprocessors ();One, the disadvantage of creating asynchronous threads.1. Each new thread creates an

About the App launch boot page moduleDate: June 14, 2016Zhao Rui Module usage Instructions The exposed interface of the module is-(void) Showguideviewwithimages: (Nsarray *) images; the name array of the image of the boot page needs to

Mobile phone connected to the computer, the use of monkeyrunner operation of the phone, the general commercial machine (that is, we bought the phone) is not directly connected to the ADB devices to see if the phone is connected to the computer, A

[ViewAddConstraint:[nslayoutconstraint constraintwithitem:segment attribute:nslayoutattributecenterx                     relatedby:nslayoutrelationequal toitem:view span class= "s2" >attribute:nslayoutattributecenterx multiplier:1.0f                

KVC (Nskey value Coding): Key-Value encodingKVO (key value observing): Key monitoringI used to listen to an audio when the end of the listening video playback status and so on this method to summarize today KVC and KVO. To facilitate further study

IOS Bullet Box if a custom view pops up directly, you can choose a third-party:MjpopupPop:if (!bandview){Bandview=[[[nsbundle mainbundle]loadnibnamed:@ "Bandview" Owner:selfoptions:nil] firstobject];bandview.bdelagate=self;[Bandview

I. Mpmovieplayerviewcontroller and MPMoviePlayerController districts, the former inheriting from NSObject, the latter inheriting from UiviewcontrollerTwo. Mpmovieplayerviewcontroller can only be played in the form of modal, and must be played in

I. Include header files #import Two. Focus: Set frame to MPMoviePlayerController view and add view to a view1 #import "ViewController.h"2 #import3 4 @interfaceViewcontroller ()5 6 /*player*/7@property (nonatomic, strong) MPMoviePlayerController