iOS delegate and block

//protocol definitions for delegates@protocolUpdatedelegate -(void) Update;@end@interfaceTest:nsobject//delegate Variable definition@property (nonatomic, weak)IDDelegate;//Blocktypedefvoid(^updateblock) (IDobj); @property (nonatomic, copy)

A few tips to make your website and app more dynamic

"Editor's note" This article is from smashing Magazine, the author of Brolik co-founder, chief creative officer Drew Thomas. This paper introduces the advantages of adding dynamic design to the web, and some suggestions for dynamic design, such as

ios:undefined Symbols for Architecture x86_64

Transferred from: http://www.th7.cn/Program/IOS/201408/268371.shtmlProblem Description: In order to fit the iphone 5s 64-bit processor, the ARM64 architecture was added to the compilation options. However, it is found that the project can be

[IOS animation]-calayer layer geometry

Layer geometry Don't come here if you're not familiar with geometry --The signature of the entrance to Plato's College. In Chapter Two, we describe the image behind the layer, and some properties that control the coordinates and

html5+ developing mobile App Tutorial 2-Introduction to Principles

PrincipleThe principle of html5+ app development is probably this:The HTML page is responsible for the content;UI is responsible for page style;JS is responsible for invoking native app methods.Html5HTML5 This section is responsible for the page,

IOS Unique identifier installation value is not changed after uninstallation

Vindor identifiers (Idfv-identifierforvendor)This is also added to iOS 6, but the new method of getting this IDFV is added to the existing Uidevice class. As with Advertisingidentifier, this method returns a Nsuuid object.NSString *IDFV =

POJ 1664 put Apple "DFS"

Test instructions: Give n apples, m plates, ask how many different Apple placement methodsIt can be abstracted as a number n, split into A1,A2,A3,---, am, so that they are N,Say this topic is the study of PPT inside, it is the idea is to

IOS nsjsonreadingoptions description "Go"

First, use code to illustrate the role of Nsjsonreadingmutablecontainers:1NSString *str =@"{\"Name\": \ "Kaixuan_166\"}";2 3Nsmutabledictionary *dict = [nsjsonserialization jsonobjectwithdata:[str datausingencoding:nsutf8stringencoding]

Android Intent Deep Understanding

What is intentIntent is a runtime binding (Run-time binding) mechanism that connects two different components during a program's run. With intent, your program can express some kind of request or intention to Android, and Android will select the

[C + +] leetcode:131 trapping Rain Water (bilateral scan)

Title:Given n non-negative integers representing an elevation map where the width of each bar are 1, compute how much WA ter It is the able to trap after raining.For example,Given [0,1,0,2,1,0,1,3,2,1,2,1] , return 6 .The above elevation map is

Android record 21-solutions for data confusion in the ListView

PrefaceThis blog to share is in the Android development encountered in the sliding data confusion problem how to solve, first describe some why the data confusion, familiar with the reason of the ListView of the friend must know, we in the

Android Studio Import Engineering Issues Summary

There are several open source projects on GitHub, and there are a variety of issues when importing Android studio.After searching all kinds of information on the Internet, one by one can be solved, and a simple summary is made on the question point:1

Android Monkey Test

What is MonkeyMonkey is a command-line tool in Android that can be run in the emulator or in the actual device. It sends pseudo-random user event streams (such as key input, touch input, gesture input, etc.) to the system, enabling stress testing of

Implementation of the IOS message push mechanism

The working mechanism of iOS message push can be simply summed up:Provider refers to the push server for an iphone software, APNs is the Apple push Notification service abbreviation, is a server.Can be divided into three stages:Phase one: The

Use traps for Android static variables

Static variables everyone is familiar with it, there is no good repetition. The cause is this, the recent test over there is the reaction is doing a product is always inexplicably show some data, and even the collapse of the crash, carefully checked

iOS turns a picture into a circle

#pragma mark- convert a picture to a circle-(uiimage*) Circleimage: (uiimage*) image withparam: (cgfloat) inset { Uigraphicsbeginimagecontext(image.size); Cgcontextref context = Uigraphicsgetcurrentcontext(); Cgcontextsetlinewidth(Context, 2);

Simple_list_item in Android

1, Simple_list_item_1: Each item is a common TextView2, Simple_list_item_2: Each item contains two TextViewAndroid:id= "@android: Id/text1" android:id3, simple_list_item_checked: Radio Check; Simple_list_item_multiple_choice: multiple selection;

EditText in Android does not eject the soft keyboard method by default

Method One:  Which activity to select in Androidmainfest.xml, set Windowsoftinputmode property to Adjustunspecified|statehidden1 2 android:label=" @string/app_name "3 android:windowsoftinputmode=" Adjustunspecified|statehidden "4

luajit2.1 iOS compilation 64bit and general purpose libraries

Apple requires the old app to support 64-bit after June, and the new app must support 64bit from 2.1 onwards. Since we used Luajit, the luajit2.0.x version only supports 32bit. 64bit has been supported in version 2.1, but it is now alpha version

Android Silent installation App

App Bao, 360 applications, pea pods and so on have a better function is to download the application to install itself, do not have to pop up the installation Application dialog box, how he did it?This is done using the shell inside the application,

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