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IOS learning notes controller data reverse transfer value, ios2015-04-15 //// FirstViewController. h // controller data transmission // Created by wangtouwang on 15/4/15. // Copyright (c) 2015 wangtouwang. all rights reserved. // # import @

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UI -- UIPickerView and UIDatePicker summary, uidatepicker The main method for returning to the top UIPickerView and the correction of the city Selector UIPickerView has only two data source methods. To completely display the PickerView, you must use

IOS implements automatic cyclic rolling advertisement-ScrollView optimization and encapsulation, and ios-scrollview

IOS implements automatic cyclic rolling advertisement-ScrollView optimization and encapsulation, and ios-scrollview I. Problem Analysis In many apps, we will see a circular scrolling view, such as an advertisement. In fact, it is not

How IOS games interact with GameCenter

How IOS games interact with GameCenter As the mobile game market continues to expand, game manufacturers active on the IOS platform want to increase players' stickiness, as well as for the future of their games, they have begun to access Apple's

Basic iosGCD usage

Basic iosGCD usage Sleepy, sleep when it's over. You can understand the benefits of running it. I will not upload it here. You can run it yourself... Good night       # Import "ViewController. h"   @ Interface ViewController () {   UIImageView * _

Objective, objectivec

Objective, objectivecI. AttributesAttribute is the syntax defined by Objective-C 2.0. It provides the default Implementation of the setter and getter methods for instance variables to simplify the program code to a certain extent, in addition, the

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IOS client Coding project record (4), ios client coding project 1: Open Xcode and crash. An exception occurs when loading a database. For example,/Applications/Xcode. app/Contents/Developer/Toolchains/XcodeDefault. xctoolchain/usr/lib/libclang.

IOS learning notes Xcode Engineering Template category, Xcode

IOS learning notes Xcode Engineering Template category, Xcode 1. Application TypeMost of our development work starts with the creation of IOS programs using the Application template. This type includes five templates.1 Master-Detail-ApplicationYou

IOS learning notes gesture password (original), ios2015-04-15

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Common UI controls and ui controls

Common UI controls and ui controls // Create a warning box object UIAlertView * alertView = [[UIAlertView alloc] initWithTitle: @ "warning! "Message: @" are you sure you want to exit? "Delegate: self cancelButtonTitle: @" cancel "otherButtonTitles: @

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Gestures in IOS1. Click UITapGestureRecognizer * tap = [[delealloc] initWithTarget: self action: @ selector (click)]; // set the number of times to be clicked [tap setNumberOfTapsRequired: 1]; // set the number of fingers for the current event to be

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Ios In-App payment (In-App Purchase, Sandbox testing, background verification)   1. Purchase Product Information in Apple iTunes Connect.   1) Create New, and select the type:1. consumable Projects For purchase items in a consumable App, you must

IOS returns a numeric string with no digits before the decimal point and two digits after the decimal point. ios decimal point

IOS returns a numeric string with no digits before the decimal point and two digits after the decimal point. ios decimal point /** Process a string with a number plus a decimal point. There is no 0 before it, and two digits are retained. There is a

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MVC design mode for iOS MVC is a standard that all object-oriented programming languages should comply with. The MVC idea is to divide an application into three basic parts: Model and View) and Controller. They work collaboratively with minimal

IOS development-image compression/Decompression into Zip files

IOS development-image compression/Decompression into Zip filesCompressing/decompressing images into Zip files This article describes how to compress an image into a Zip file. First, you need to download the third-party library ZipArchive and import

[Good programmer notes sharing]-ios development gold syntax, programmer ios gold syntax

[Good programmer notes sharing]-ios development gold syntax, programmer ios gold syntax IOS training ------ my C Language notes. I look forward to communicating with you!   In May last November, I decided to buy three books online after iOS

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Common xmpp errors 1 and common xmpp errors # Pragma mark-Incorrect password, authentication failed-(void) xmppStream :( XMPPStream *) sender didNotAuthenticate :( DDXMLElement *) error {NSLog (@ "authentication failed % @", error);} // Cause:

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