Mobile Develop

First, screen rotation detection methodIn a special scenario, special handling is required for screen rotation. It is also convenient to implement the relevant functions under the iOS system. Here are two ways to do this:1. Monitor status bar

If there is only one scrollview in the current Viewcontroller, click on the status bar and the ScrollView will scroll to the top. But when there are multiple scrollview in the Viewcontroller, it doesn't work! At this time, how to be

Today do a mobile phone shake a small case, the small case of the internet to change into what they wantIn the process of modifying the code encountered a few minor problems, when I shake the phone need to shake the mobile phone number to count, but

Ns_assume_nonnull_beginNs_assume_nonnull_endA property assignment must not be null between these twoNull_resettable allow set to be empty get not empty requires overriding set method@property (null_resettable,strong,nonatomic) nsmutablearray *

I. Description of call and apply1, Call,apply is a method of function.prototype, it is implemented within the JavaScript engine, because it belongs to Function.prototype, so each function object instance (that is, each method) Have call,apply

Read Mobile GPs in Ros (Indigo) for robotic positioning ~GPS2BT use in Ubuntu and window systems ~There is no need to purchase additional GPS devices.Mobile phone GPS data transmitted to the computer via Bluetooth, of course, through a similar

Baidu Mobile Statistics (http://mtj.baidu.com) is a professional mobile application statistical analysis tool that supports iOS and Android platforms. Developers can conveniently embed the statistics SDK,Comprehensive monitoring of mobile

ImageView loginbtn =(ImageView) Findviewbyid (R.id.login_button); Loginbtn.setonclicklistener (NewView.onclicklistener () {@Override Public voidOnClick (View v) {//TODO auto-generated Method Stub//Here you can determine whether the account password

SHARESDK integration Here is not detailed introduction, the official website has been enough detail.The official default sharing style is as follows:Paste my source code:Create share picture NSString *imageurlstring = @ "http://mob.com/Assets/images/

Problems encountered when learning fragmentThese days learning fragment static loading when encountering this problem:Java.lang.RuntimeException:Unable to start activity componentinfo{.... }: Android.view.InflateException:Binary XML file Line #.. :

Write a struts2 project, after importing the jar package to run normally, when I create another action class, go to Error:There is no action mapped for namespace [/] and Action name [runaction] associated with context path [/STRUTS2_DAY01].Online

Timer TimerTo design a timing timer:1, create variable array, hold 0~100 number2, create a 0~100 number with a for loop and put it in a mutable array3, create timer: Create timer: Parameter 1: Set time interval, parameter 2: target, Parameter 3:

Learn to Exchange discussions please follow Sina Weibo: Geek JamesIn the process of iOS development, no matter what the application, you will encounter the problem of data preservation, what method do you use to persist data? This is an issue that

Application of 1:FCUUID Acquisition equipment identificationA: Author Githun address Https://github.com/fabiocaccamo/FCUUIDBecause it also uses the author's other class Uickeychainstore address: Https://github.com/kishikawakatsumi/UICKeyChainStoreB:

What type of object obj is at compile time and runtime, respectivelyAs in the following code, obj what type of object is at compile time and runtime, respectively: 123 nsstring *obj = [[nsdata alloc] init];

Understanding of the 1.Model data layer1.1 Sandbox BasicsSandbox definition: Each iOS application creates a file system directory (folder) for itself, a separate, closed, secure space called a sandbox.Sandbox features:Sandbox folders and the role of

1. First add the drawable file Checkbox_style.xml in the Drawable folder."1.0"encoding="Utf-8"?> "http://schemas.android.com/apk/res/android"> "@drawable/checkbox_pressed"Android:state_checked="true"/>

Implementation Focus: Nsurlsessiondatatask to set the request header, get the length of the file downloaded from the path (the file has not been downloaded, the length is 0). Set the requested range by this length When the

1. Related Resources(1) Keychain Program (common Tools-keychain ) for creating certificate requests, installing certificates, exporting private keys, and more(2) iOS Dev Center:https://developer.apple.com/devcenter/ios/index.action (3) iOS

since the middle of this year, Forcetouch, also known as pressure touch technology, has become a focus of attention in the mobile phone industry. The so-called Force Touch is the ability of the device to perceive light pressure and stress, and to