The differences between IOS strong,copy,retain,weak,assign, and their respective usage

1:ARC Environment,Strong instead of Retain.weak instead of assignThe role of 2:weak:in the ARC environment, all weak pointers pointing to this object will be set to nil. This t feature is useful, and it is believed that many developers have been

Optimization of toast tips for Android project optimization

When we do login verification often use Toast to prompt the user to enter the content of the error, and many people are directly usedToast.maketext (loginactivity.this, "please contact the Community material Tube", toast.length_short). Show

Debug a Web page on your phone (Breakpoint console timeline select DOM)

Using mobile phone to see the web, more and more, mobile phone app set a webview also a lot of, then how to debug the page on the phone? such as breakpoints, select Dom,console, console output, view memory, = =Well, the almighty chrome and Safari

How to hide various bar in iOS development

Reprinted from Http://www.cnblogs.com/lovecode/articles/2234557.htmlState Bar Status Bar[UIApplication Sharedapplication].statusbarhidden = YES;Orios3.2+ Support[Application Setstatusbarhidden:no Withanimation:uistatusbaranimationfade];The

Jfinal + jquer Mobile logging WebApp effect diagram

Work in the need to record daily work, send daily work mail, as the basis for assessment. Two seniors use the ASP to develop a PC-side tool, try it out, or feel some trouble, want to develop a mobile phone to write logs and send mail Mobile station.

Android Translator special symbol label (reprint)

reprinted from: Translation of special symbol labels/*** Dealingcharacter.java * Description: *@authorLI.B *@version2.0 * June,*/ Public classDealingcharacter {/*** Description: Translating special symbol tags *@paramthe string to be processed by

About Learning Android Bottom

About learning Android Bottom, know how to enter _ Baidu knows??? Learn about the bottom of Android, get into search??? 2014-11-09 11:23 Cheng 104 Category: Mobile Development | Browse 888 times??? Android??? I want to learn the bottom of Android,

. NET Programmer Android Learning path 6: Waiting bar

In general, when you need to access the network or long-time operation to avoid the interface is not responding to use: Waiting barThis example implements a no-frame wait bar with the following effect:After clicking, the thread Sleep5 seconds, the

Determine device system version in iOS

In iOS development, it is often necessary to consider the backward compatibility of the system, if the use of a low version of the API is not compatible with, if you want to be compatible with the lower version, you need to according to the current

The Common Appbug

The impact of mobile app Bugs is a poor user experience, a drop in App store ratings, a user-to-competitor app, loss of reputation and reputation, and a decrease in final sales if it's a paid app.Mobile app testing has a certain amount of complexity

The difference between Android Singletask and SingleInstance

In Wednesday went to NetEase interview was asked this question, then did not answer right, came back specially wrote a program to study.About Android activity start mode A total of four standard singletop singletask singleinstance these four

How Android Apps feedback crash reports

Why do I need a feedback crash report? To do Android apps, try to avoid the crash of the program. Although the 0 crash is the ultimate goal of the programmer chase, the reality is that programmers can only minimize the occurrence of crash, and

Q12:app is working on iphone, Black edge problem solution on ipad

Q12:app is working on iphone, Black edge problem solution on ipadProblem Description: the app works on iphone and black edges appear on ipad.problem Reason: first select your project, the right side of our familiar general, capabilities, info and so

Org.hibernate.MappingException:Could not determine type for:java.util.List, at Table:user, for ...

Exception Details:caused by:org.hibernate.MappingException:Could not determine type for:java.util.List in Table:ss_user, for columns: [ Org.hibernate.mapping.Column (roles)]At Org.hibernate.mapping.SimpleValue.getType (simplevalue.java:336)

iOS Basics (ii) objects

Use the foundation framework when writing OBJECTIVE-C programs.What is a framework?A framework is a library of many classes (class) that you can use to write programs.Object (Object) objects can hold data and can contain a set of functions.

Zoom features in Windows Store App using ScrollViewer

The ScrollViewer can be used directly in the Windows Store app for zooming, with the following basic code:"Yellow"horizontalscrollbarvisibility="Visible"Maxzoomfactor="2"Minzoomfactor="0.5"verticalscrollbarvisibility="Visible"Zoommode="Enabled">

Yeoman-scaffold JavaScript WEB Application

Yeoman-scaffold JavaScript Web application (Setup new JavaScript Web app quickly)Depend on the tools:-grunt, JavaScript task runner-bower, A Package Manager for WebStep0, install node. js and NPMStep1, install Grunt: # NPM Install-g grunt-cliStep2,

Android location API

Locationclient is not available now, here's the new solutionHttps://developer.android.com/training/location/retrieve-current.html Public class extends Implements connectioncallbacks, Onconnectionfailedlistener {... @Override publicvoid

Full summary of Android Intent usage

[Code] Call dialer10086 Call to mobile customer serviceUri uri = uri.parse ("tel:10086");Intent Intent = new Intent (intent.action_dial, URI);StartActivity (Intent);[Code] send SMS or MMSSend SMS to 10086 with "Hello" contentUri uri = uri.parse

Android Raw and assets resources

The same points as *res/raw and assets:1. The files in both directories will be stored intact in the APK package after packaging, and will not be compiled into binary.Different points of *res/raw and assets:The files in the 1.res/raw are mapped to

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