Mobile,application,developer,b computer Mobile application developer
Gone are those times when the companies and the organisations didn't need a hi-tech system to handle them. Owing to the considerable increase in the business sector and thus, an enormous increase in the complexity of the organisational struc ----------------------------------------------------------Permission is granted for the below article to forward,reprint, distribute, use for ezine, newsletter, website,offer as free bonus or part of a product for sale as longas no changes a
v\:* {behavior:url(#default#VML);}o\:* {behavior:url(#default#VML);}w\:* {behavior:url(#default#VML);}.shape {behavior:url(#default#VML);} Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable{mso-style-name:"Table Normal";mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-priority:99;mso-style-qformat:yes;mso-style-parent:"";mso-padding-alt:0in 5.4pt 0in 5.4pt;mso-para-margin:0in;mso-para-margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:11.0pt;font-family:"Calibri","sans-serif";mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:minor-bidi;}We started talking about DesignPatterns in our first part of the document, you have not checked please check iPhone applications Continue from 1stpart In this iPhone application,the application object tells its delegate that the main start-up routines havefinished and that the custom configuration can begin. For this iPhoneapplication, you want the delegate to create an instance of a controller to setup and manage the view. In addition, the text field will tell its delegate(which in this case will be the same controller) when the user has tapped theReturn key. Delegate methods aretypically grouped together into a protocol. A protocol is basically just a listof methods. If a class conforms to a protocol, it guarantees that it implementsthe required methods of a protocol. (Protocols may also include optionalmethods.) The delegate protocol specifies all the messages an object might sendto its delegate. Model-View-Controller The Model-View-Controller (orMVC) design pattern sets out three roles for objects in an application. Model objectsrepresent data such as SpaceShips and Rockets in a game, ToDo items andContacts in a productivity application, or Circles and Squares in a drawingapplication. In this application, themodel is very simplejust a stringand its not actually used outside of asingle method, so strictly speaking its not even necessary. Its the principlethats important here, though. In other applications the model will be morecomplicated and accessed from a variety of locations. View objectsknow how to display data (model objects) and may allow the user to edit thedata. In this application, you needa main view to contain several other viewsa text field to capture informationfrom the user, a second text field to display text based on the users input,and a button to let the user tell us that the secondary text should be updated. Controllerobjects mediate between models and views. In this application, thecontroller object takes the data from the input text field, stores it in astring, and updates a second text field appropriately. The update is initiatedas a result of an action sent by the button. Target-Action The target-action mechanismenables a view object that presents a controlthat is, an object such as abutton or sliderin response to a user event (such as a click or a tap) to senda message (the action) to another object (the target) that can interpret themessage and handle it as an application-specific instruction. In this application, whenits tapped, the button tells the controller to update its model and view basedon the users input. You create the project usingXcode and find out how an application launches. Xcode The main tool you use tocreate applications for iPhone OS is XcodeApples IDE (integrated developmentenvironment). You can also use it to create a variety of other project types,including Cocoaand command-line utilities. Launch Xcode (by default itsin /Developer/Applications), then create a new project by choosing File >New Project. You should see a new window similar to this: Continued to next article mobile app development Formore information onhttp://asglobal.co.uk/iPhone_apps.html> Mobileapplication developer you can visit our web site http://asglobal.co.uk/iPhone_apps.html
Mobile,application,developer,b