Calculate two large number addition algorithms (OC Implementation) in iOS

We know that computers have different data types and can represent varying levels of data, such as: unsigned int :  0~4294967295    INT: -2147483648~2147483647  unsigned long : 0~4294967295 long:   -2147483648~2147483647 long long:   -92

iOS image upload 1

these days in the iphone on the development of an application, there is a need for camera/album programming and image upload issues, here to summarize. "Partial knowledge"iphone images are usually stored in 4 places "album, app Package, sandbox,

IOS about image location Privacy Information analysis and Reading

Today, suddenly think of a friend circle to send photos, involving personal privacy is the location of the leak. Because the photos of the iphone will have geographical location and other information, we first to implement how to read the security

Solving fragment overlap issues in apps

Because of the memory restart, the cause of frgament overlap, the reason is that fragmentstate does not save the display state of fragment, that is mHidden , after the page restarts, the value is the default of false, that is, the show state,

iOS Development Quest-Image compression processing

Introduction:pressure: refers to the size of the file smaller, but the number of pixels unchanged, the length and width of the size of the same, then the quality may fall.shrink: refers to the size of the file is smaller, that is, the number of

Basic usage of iOS Nsnotfound

Example one:NSString *_string = [nsstringstrinwithformat:@ "123 456"];Nsrange _range = [_stringrangeofstring:@ ""];if (_range.location! = nsnotfound) {There are spaces}else{No spaces}Find the position of the space first, and then find the location

Didselectrowatindexpath Tap Event Response latency in iOS development

To add the tapped event for UITableViewCell, the code is as follows:Class Videoviewcontroller:uiviewcontroller, Uitableviewdatasource,uitableviewdelegate {//... Func TableView (Tableview:uitableview, didDeselectrowatindexpath

Use of iOS Sdwebimage

The first step is to download the Sdwebimage and import the project. GitHub Escrow Address Https://github.com/rs/SDWebImageStep two, import the header files where needed 1 #import "UIImageView+WebCache.h" The third

Android Next day

File storage 1, own private file directory, 2, SD card under, 3,sharedperferense,4, and database--------TestBlack box white box test particle size Unit Integrated system Unit test steps to write a class, inheriting the Androidtestcase

iOS Development UI Chapter-calayer properties of the layer

iOS Development UI Chapter-calayer properties of the layerFirst, position and Anchorpoint1. Brief introductionCalayer has 2 very important properties: position and Anchorpoint@property cgpoint position;Used to set the position of the Calayer in the

How "Android" imports the Eclipse project into studio

1.eclipse Project Right-click->export->generate Gradle Build Files2.studio->new->import project-> Select Build.gradle under the project root directory3. You may need to modify the Gradle directory: Studio

Android Transparent status bar. Suitable for over 4.4 and over 5.0 devices

OverviewSometimes we want to implement an effect across the top status bar on a andorid phone, such as a picture that appears directly within the status bar. Like what:There is a picture on this page that is displayed in the upper part of the page.

Androidhandlerthread Full Parse (reprint)

Androidhandlerthread Full Parse Reprint please indicate the source:http://blog.csdn.net/lmj623565791/article/details/47079737;This article is from: "Zhang Hongyang's Blog" 1. OverviewThe recent changes in the stock market have also

Android Advanced _ Third party framework Xutils

The functions of xutils mainly include four parts: (1) Layout View Association, (2) Picture download and cache, (3) network request; (4) database;1. Use Xutils for view injection:(1) Add the resource ID of the @viewinject () incoming control above

Transform:rotate displays a jagged solution encyclopedia on your phone

First a compatibility note, brainwashing:Div{Transform:rotate (7DEG);-ms-transform:rotate (7DEG); /* IE 9 */-moz-transform:rotate (7DEG); /* Firefox */-webkit-transform:rotate (7DEG); /* Safari and Chrome */-o-transform:rotate (7DEG); /* Opera */}1.

Androidcontext context You must know Everything (reprint)

Androidcontext context you have to know everythingReprint please indicate source: http://blog.csdn.net/lmj623565791/article/details/40481055, this article from: "Zhang Hongyang's Blog"Most of the content in this article is translated from:

Questions about the Android Ksoap get failed

Today practical Ksop get the data, everything is right, but always reportedEnvelope.bodyin cannot be converted into soapobject problemsDirect print out prompt, HTTP header gets to the data null problem, and finally found to beThe KOSP version of the

[iOS development] about the use of cocoapods

Use of CocoapodsAbout Cocoapods, I believe that the development of iOS should be more familiar with. Cocoapods is an easy-to-use management tool for managing third-party libraries. The thing about Cocoapods no longer said, and then came to the chase.

Troubleshooting Xcode iOS True Machine Debug Normal, simulator failure problem

This morning encountered Xcode's real machine can debug, but the simulator has burst a lot of errors, suggesting that the error is not found referenced code files, the real machine and the simulator configuration is the same,To be exact, it should

Analysis of the reuse mechanism of Androidadapterviewview (reproduced)

Analysis of reuse mechanism of AndroidadapterviewviewFor the listview, the GridView believe that everyone is not unfamiliar, rewrite a baseview, to achieve a few methods, and then completed our interface display, and in most cases, we load a special

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