QR Code barcode scanning using IOS7 native API

Prior to IOS7, developers typically use third-party libraries for code-scanning programming.commonly used is the ZBarsdk,ios7 after , the system's Avmetadataobject class, we provide an interface for parsing two-dimensional code. Tested, the use of

iOS essay-xcode use-document translation

This article is a personal translation record ~ is not a technical sharing ~ Want to read Chinese documents, you can view the ~About debugging with XcodeAbout Xcode RegulatorsFinding and eliminating problems in your code is a key part of the

iOS development @2x images, etc. adapted to different resolutions of the mobile phone

Development, for example: Nanshanimage.image=[uiimage imagenamed:@ ' index_pic.png ');In the project also saved in [email protected] picture, this figure in order to only adapt to 960*640 resolution of the phoneNote: To adapt to the Iphone5 of the

The solution of "applicationverificationfailed" problem appeared in the PP Assistant installation app

In an iphone, if a user installs some apps that will see a "profile" on the phone's settings-the bottom of the list, the online description file is an XML file that records some important information about a particular app, which is more important.

iOS development, you have to know the data stored---dry

1, preferences-more for user name, whether automatic login and other data storageMany iOS apps support preferences such as saving usernames, passwords, font size, and more, andiOS offers a standard set of solutions to add preferences to your

Interpreting Android's tasks and back stacks

This document is translated from Android official documentation, combined with your own tests, organized as follows.OverviewAn application usually includes multiple activities, each activity needs to specify a specific function, and sometimes it

[Ios]received Memory Warning

Reference: http://blog.sina.com.cn/s/blog_68661bd80101nn6p.htmlThe memory available to each app under the iphone is limited, and if an app uses more than 20M of memory, the system sends a warning message to the app. Apple's system engineers suggest

Android SDK+ECLIPSE+ADT+CDT+NDK development environment built under windows 7

Android SDK+ECLIPSE+ADT+CDT+NDK development environment built under windows 7These days have been working on the Android SDK C + + platform build, despite previous successes in Windows XP, because there was no useful record, spent a lot of wronged

Keychain in iOS implements the UUID device unique identifier encountered problem

Cut the crap and put it in the chase:Recently in the study to achieve the acquisition device unique identifier, through various aspects of research, found that the use of Apple's official recommended keychain is quite good.Apple provides an example

iOS development--Actual &xcode 7 real-machine test

Xcode 7 Real-machine test details1. PreparationNote: Be sure to have your real device's system version and the app's system version want to correspond, if not, a very common problem arises: could not find developer disk imageFirst of all, prepare

"Go" Android message mechanism

This paper first analyzes the whole Android messaging mechanism from the whole architecture, and then introduces the functions and tasks of each component from the source point of view. The basic concepts are not introduced, and the mechanism of

Android build GPS provide steps and information

Build GPS provide steps and information1. Recording KML files with Gps2googleearth2. kml file2.1 Resolution of latitude and longitude113.89668,22.95283,0 113.89659,22.95281,0113.89665,22.95287113.89668 is longitude, 22.95274 is dimension, 0 is

Turn on/off IOS native left slide pop view feature

-(void) Baseinteractivepopgesturerecognizerenable: (BOOL) enable{if([ Self. NavigationcontrollerRespondstoselector:@selector(Interactivepopgesturerecognizer)]) {if(enable) { Self. Navigationcontroller. Interactivepopgesturerecognizer. Delegate= (ID)

Android TextView Horizontal scrolling (marquee effect)

Android TextView When the text is a long time to expect it to scroll horizontally, the following is a pro-test feasible method.:1. Custom TextView, override the IsFocused () method to return True to have the custom TextView always in the get focus

(v) Set the background of the phone status bar on Android 4.4

1. DemoOn Android 4.4 There is a new feature that sets the background of the phone's status bar, keeping the style of the phone's entire interface consistent, which is the default for Android L on Google I/O this year. Check out the demo

< > About certificate, Provisioning profile, App ID and the relationship between them

Transferred from: http://www.cnblogs.com/cywin888/p/3263027.htmlJust contact with the development of the iOS people will inevitably have a variety of Apple certificates, configuration files and so on, you may follow the online tutorial steps to

Android dialog box (Dialog) and custom Dialog

Activities provides a convenient and manageable dialog box mechanism for creating, saving, and replying, such as Oncreatedialog (int), onpreparedialog (int, Dialog), showDialog (int), Methods such as DismissDialog (int), if these methods are used,

HTML5 mobile phone shake a shake to achieve

Directory structureIntroduction of Jquery:jquery-1.11.1.min.jsHTML code             Shake shake function                Shake Your cell phone      not yet shaken  Shake.js/* * Author:alex gibson * https://github.com/alexgibson/shake.js *

Android Aircraft Wars (VI) adding animated GIF images

There are two waysThe first kind of trouble is that you need to decompose a GIF into a frame and then draw the frame one by one, which is troublesome.Second, you can download a drawable.gif package directly on the InternetThe following files are

iOS QR code scan, you need to be aware of two things

Before iOS7, QR code and barcode scanning were implemented in iOS, and we know there are two big open source components Zbar and zxing. We've all worked on both of these components, and here's a summary of their shortcomings: Zbar Zbar

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