Mobile Develop

1, in the first activity (Mainactivity.java) in the method Startactivityforresult (Intent Intent, Int requestcode) Launch the second page (Twoactivity.java);Bundle bundle = new Bundle (), bundle.putstring ("Strsex", Strsex), bundle.putdouble

Sharedpreferences is a tool class for storing simple data in Android. It can be imagined that it is a small cookie that stores simple data types (boolean, int, float, long, and string) in the application's private directory by means of a key-value

1. PrefaceAndroid often encounters a situation where the view is converted to bitmap, such as taking screenshots of the entire screen view and generating images; Coverflow need to convert a page-by-page view to bitmap for complex graphical effects

First, when acitivity and service are in the same application and process, they are implemented by inheriting the binder class.When an Activity is bound to a service , it is responsible for maintaining a reference to the service instance, allowing

Setcontentview:1. Commonly used constructors: 1) setcontentview (int layoutresid) 2) Setcontentview (view view) 3) Setcontentview (view view, Viewgroup.layoutparams params)2. Usage1) Setcontentview (R.layout.main);2) Layoutinflater Inflater =

SQLite is built into Android, but the common development language Java is Object-oriented, and the database is relational, and the conversion between the two is cumbersome every time. (as programmers, should learn to be lazy) and Java Web

Using Nsurlconnection for HTTP communication in iOS, Nsurlconnection provides both asynchronous and synchronous communication methods, which can cause process blocking, usually in the same way that we use async, whether synchronous or asynchronous,

When I used to tune the PC Web page, Firefox has Firebug,chrom also has its own debugging clutch tool, easy to use.But now I have to debug the page on the phone, this time there is no such a convenient ready-made tools.After the discovery of Fiddler,

I. The concept and structure of request1. ConceptThe request object is to make requests from the client to the server, including information submitted by the user and some information from the client. The client submits the data through an HTML form

The error description is as follows:./app/build/outputs/apk/app-debug.apk2999 KB/s (8256380bytesin2.688s) pkg: /data/local/tmp/app-debug.[INSTALL_FAILED_OLDER_SDK]The reason is that the Android version of your device is too low and the app

Important note Purple explanation Blue Category New content cs193p this lesson old version 2010 Winter http://open.163.com/movie/2010/6/C/7/M6RU83DCT_M6RU957C7.html IOS5 http://v.163.com/special/opencourse/ipadandiphoneapplication.html CS06A

I had something similar happen to me just recently. I updated my iPhone to 8.1.3, and started getting the ' application could ' is verified ' error message from Xcode in an A PP that installed just fine on the same IOS device from the same Mac just

1. Download third-party jar packages2, create a libs directory under the Android project (name is not fixed, you can take other names completely)3. Right-click on the Libs directory in Eclipse, select Import, General, File System, select the

First, the problem description Android applications often involve loading a large number of images from the network, in order to improve loading speed and efficiency, reduce network traffic will adopt the two-level cache and asynchronous

In the process of developing with Android studio, I wanted to do something to get rid of the above line when I encountered deprecated, deprecated methods and classes. Then, it's been a long time since the problem was not a problem.Before we created

IosのアーキテクチャA) Iosのアーキテクチャは hierarchical されているThe most superior レベルでは, Iosはそれが Jia Labor しているハードウェアとアプリケーションの between the agent service Fruit たします. アプリケーションがハードウェアと Direct やり take りすることはめったにありません. Substituting わりにアプリケーションは, occupies definition された a

Transferred from: http://blog.csdn.net/qinjuning/article/details/7310620Hello everyone, today to introduce us in the application development of the most familiar and unfamiliar friends-----context class, said it is familiar with, it should be for us

1-(BOOL) validatemobile: (nsstring *) Mobilenum2 { 3 /** 4 * Mobile phone number5 * mobile: 134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,1886 * unicom: 130,131,132,152,155,156,185,1867 * telecom: 133,1349,153,180,1898 */

The message queue and message loop of the Android system are the main thread, and other backend services cannot be updated directly, and the update UI must be executed sequentially by the message loop of the main thread;At the same time, for more

Download install, how it works, auto boost, viewport, events, response Handheld direction, mobile browsing EmulatorJquerymobile1. Download and installHttp://jquerymobile.com　　 Import 　　　　2. Working principle　　Jquerymobile offers three browser-level