Android Learning note-detects if it's a WiFi environment

Connectivitymanager cm = (Connectivitymanager) getsystemservice (Context.connectivity_service);Get the Networkinfo object that represents the networked stateNetworkinfo wifiinfo = Cm.getnetworkinfo (Connectivitymanager.type_wifi);return wifiinfo! =

Self-study Ios:first day Basic concepts

iOS has only a preliminary impression on me: no Android version of the fragmented headache but there is a closed system of control.As an iOS developer, you must master: Oc Large concepts, such as memory management, delegation, archiving,

Android uses accelerometer to achieve shake-and-shake function and optimization

If reproduced, please declare the source: The Sands of Time: http://blog.csdn.net/t12x3456At present, many applications have realized the shaking function, here by explaining the principle of the function and implementation of the accelerometer to

Changes to the Android4.4 problem

Updated to Android 4.4, wrote a small program. The discovery is not working. Throws a null pointer exception. In debug mode, it is found that getting the button in the OnCreate method is null.Android 4.4 has reorganized the layout and put it all

Android:gravity and Android:layout_gravity

LinearLayout has two very similar properties: Android:gravity and Android:layout_gravity. The difference is that android:gravity is used to set the alignment of the view component, and android:layout_gravity is used to set the alignment of the

Android Configuration Development environment

1. Download Java SE and install it.: http://www.oracle.com/technetwork/java/javase/downloads/index.htmlConfiguring Environment variables The following environment variables are added to the system variables, such as environment variables,

iOS Learning notes-multi-threaded

gcd

Multithreading1. The principle of multithreading1> At the same time, the CPU can only handle 1 threads, and only 1 threads are working (executing)2> multi-threaded concurrency (simultaneous) execution, in fact, the CPU is quickly dispatched between

iOS Development Multithreading Basics Nsoperation

-------nsoperation Introduction----The role of 1.NSOperation • With the use of nsoperation and nsoperationqueue can also achieve multi-threaded programming 2.NSOperation and nsoperationqueue multi-threaded implementation of the specific steps · Wrap

"Android Development Learning note", "lesson three" activity and intent

  Let's start by looking at an activity that starts another activity, directly on the code:(1) to start with multiple activity, first create a new other.xml under Res-layout to act as a layout file for the second activity    XML version= "1.0"

Android configchanges Usage

1. When using the activity's default properties in the manifest file, the ondestory and oncreate are unnecessarily costly when the vertical screen is used horizontally. Android By default this should be to adapt to different XML layout files,

Appium Concise Tutorial (9)--How to get the activity of Android app

Sometimes in Appium desired capabilities you need to specify the appactivity of the app under test, the following method may help you.Method OneIf you have to test the project source code, then directly view the source code is good. If not, then

Appium Concise Tutorials (8)--those tools

The laughter reminds me of my tool in every corner of my life silently for me I thought I'd always be by her side today we're gone in the boundless crowd they're all old. Fortunately, I used to accompany them to develop ... Miss her ... She also

IOS: Define Block

Definedtypedef void (^rfaudiobasicblock) (void), typedef void (^rfaudiosuccessblock) (BOOL flag), typedef void (^ Rfaudiosuccessdetailblock) (BOOL flag, Nsurl *url, nstimeinterval duration); typedef void (^rfaudiosuccessurlblock) ( BOOL flag, Nsurl *

Parallax Mapping Shader concave and convex feeling "turn"

Original http://www.azure.com.cn/default.asp?cat=11&page=2Parallax Mapping is to offset the texture coordinates by the height in the height map,To visually deceive the observer, producing a very concave and convex illusion.Uniform VEC3

Mobile development tools

Mobile development tools Http://www.csdn.net/article/2014-04-17/2819378-10-mobile-application-development-tools prototyping tools https://  www.fluidui.com/Angularjs-based mobile UI Library Http://mobileangularui.com/angularJS version of

The development status and future of Barquan _ mobile Internet

As one of the greatest and most important technological inventions in the history of human civilization, the Internet has developed into today, and it is not too much to describe it. As the extension and evolution of the traditional internet, the

Generally http_accept this server variable contains the following string, it can be determined that the cell phone

Know the user,IT industry practitioners Cui Vincent, the user agrees to the current mobile browser standards are not the same, each has its own browser, is generally http_accept this server variable if it contains the following string, you can

Detailed steps for iOS real-computer debugging

• Main steps for real machine commissioning 1. Login to the Developer Home Page 2. Generate CER Certificate: CER is a certificate file associated with a computer that gives the computer the ability to debug with a real machine 3. Add app ID: What

Analysis of the reuse mechanism of cell reuse in IOS table

After you create an instance of the Uitableviewcontroller subclass, the IDE generates code such as the following paragraphs:[CPP]View Plaincopy -  (uitableviewcell *) TableView: (uitableview *) Tableview cellforrowatindexpath: (NSIndexPath * )

A summary of some references to FFMEPG development under iOS (updated continuously)

http://blog.csdn.net/sing_sing/article/details/8468798Recently engaged in the iOS video playback, studied the FFmpeg, will now see a good summary of the information, convenient for themselves or those who need to consult.1, iOS under the FFmpeg

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