You are viewing the article How to Create an iPhone App at Tnhelearning.edu.vn you can quickly access the necessary information in the table of contents of the article below.
This article was co-written by Imran Alavi. Imran Alavi is an app developer & marketing specialist and CEO of Prpeadsoft, an app development and digital marketing company in San Francisco, CA. With over 10 years of experience, he specializes in web design, search engine optimization (SEO), internet-based marketing (Google, Facebook, LinkedIn AdWords), application development and software tactics for businesses. Karma. Imran holds a bachelor’s degree in computer science from the National College of Computing and Emerging Sciences, a master’s degree in computer science from San Francisco State University, and has completed Continuing Studies courses from the University of California. Stanford Graduate School of Business, Marketing, and Communications.
This article has been viewed 29,546 times.
The app market is constantly changing and shifting, and the success stories are big enough to catch anyone’s attention. Do you think you have the next big idea for an iPhone app? It’s easier to create than you think. Although you will need to learn to code a bit, most of the work on the interface can be done graphically. Creating an app takes time, learning, and patience, but who knows, you’ll be able to create the next Flappy Bird phenomenon! See Step 1 below to get started.
Steps
Setting Up Your Development Environment
- To develop apps on iOS 8, you’ll need Xcode 6.0.1 and the iOS 8 SDK, both of which can be downloaded from Apple. The iOS 8 SDK contains a significant number of new APIs that allow you to create all kinds of new app experiences, including iCloud and Touch ID integration.
- To develop apps on iOS 10, you’ll need Xcode 8 and the iOS 10 SDK, both of which can be downloaded from Apple. In this version of Xcode there are significant changes to the Swift language and SDK tools that you need to be aware of, but the good news is that there will be no “code-breaking” changes to the Swift language after the release. This.
- A newer option is to build apps in Swift, a language that came after Objective-C. Swift has a friendlier syntax and feels more modern.
- While you can build a basic application without knowing Objective-C, you cannot implement any kind of advanced functionality without coding it yourself. Without Objective-C, all you can do is go back and forth between screens.
- There are many tutorials available online, as well as a wealth of information that can be found in book form about Objective-C. If iPhone app development is something you seriously want to do, you’ll be satisfied by having a few useful resources on hand.
- A few of the more popular online Objective-C communities include the Apple Developer Forum, the iPhoneSDK Google Group, and StackOverflow.
- ODesk and Elance are two of the most popular freelance services on the Internet, and both have hundreds of developers and artists of all skill sets.
- You can create an account at the iOS Dev Center website.
Application Planning
- Try to stick to the design document as much as possible while developing your application. This will help you focus on the features you want to have.
- Try to draw at least one miniature sketch for each screen in your app.
- UI design is more of an art than a science. You will likely have to review your design continuously as the project progresses.
Create Apps
- There are many templates available, all designed for different tasks. Let’s start with a blank template until you get more familiar with the development process. You can try out one or more complex patterns once you get used to how things work.
- You will need to provide a Product Name, your company identifier, and a class prefix. If you don’t already have a corporate identity from Apple, enter com.example . For the class prefix, type enter XYZ .
- Select “iPhone” from the Devices menu.
- Click File → New → File.
- Under the iOS heading, tap “User Interface”.
- Select Storyboard, then click Next.
- Select iPhone from the Devices menu, then name the file “Main”. Make sure the file is saved in the same location as your project.
- Click on your project name on the left hand navigation tree.
- Find the Targets heading above the main frame. Select your project from the Targets list.
- Find the Deployment Info section in the General tab.
- Enter Main.storyboard in the “Main Interface” text field.
- Select the file “Main.storyboard” in the project navigation menu. You should see a blank canvas appear in the Interface Builder window.
- Find the Object Library. It’s located at the bottom of the right pane, and can be selected by clicking the little boxy button. This will load a list of objects that can be added to your canvas.
- Click and drag the “View Controller” object onto the canvas. Your first screen will show a background frame.
- Your first “Scene” is done. When the application starts, the display driver loads your first screen.
- Click and drag objects from the list to add to your screen.
- Most objects can be resized by clicking and dragging the boxes on the edges of the object. When sizing, guides will appear on the screen so you can make sure everything is aligned correctly.
- Select the object you want to customize and then press the “Attributes Inspector” button at the top of the right pane. This button looks like a shield.
- Customize the audience to your liking. You can change the font style, font size, text color, alignment, background image, placeholder text, border style, and more.
- Available options may vary depending on the object you customize.
- New screens are added by dragging and dropping display controls onto empty parts of your canvas. If you can’t find any space to drop up, press the “Zoom out” button until you find the empty areas. Make sure you drop the display control on the frame and not on the existing screen.
- You can change the initial display by selecting the display driver you want to take the lead from from the project draft. Click the Attribute Inspector button and then check the “Is Initial View Controller” box. For example, if you’re going to create a to-do list, you’ll want the list to actually be seen by the user first when opening the app.
- Your navigation controller needs to be added to the initial display so that it can control all subsequent screens.
- Select initial view from project outline.
- Click Editor → Embed In → Navigation Controller.
- You should see a gray navigation bar appear at the top of the screen where you added the driver.
- Add a title to the navigation bar. Click the Navigation Item below the display controller you assign it to. Open the Attribute Inspector and type in the title of the current display in the Title field.
- Add a navigation button. Open the object library (if not already open) and find the Bar Button Item. Click and drop it on the navigation bar. Usually the “forward” scroll buttons in the app are placed on the right, and the “backward” scroll buttons are placed on the left.
- Set properties for the button click. Buttons can be configured to have unique properties that make them more adaptable to specific circumstances. For example, if you create a to-do list, you will want to add an “Add” button to create a new task. Select the button, and open the “Attribute Inspector” panel. Find the Identifier menu and select “Add”. The button will change to a “+” symbol.
- When you release the mouse button, the Action Segue menu appears with a list of options. Select “Push” to use push transitions when moving between screens. You can also select “Modal”, to open the screen as a standalone action rather than in sequence.
- If you choose Push, a navigation bar will be automatically added to your second screen and a “back” button will be automatically created. If you choose Modal, you will need to manually add a second navigation bar as well as add a “Cancel” and “Done” button (for a to-do list, labels for the button). Your click will vary depending on the needs of your application).
- “The “Cancel” and “Done” buttons can be created the same way you would an “Add” button. Simply choose “Cancel” or “Done” from the Identifier menu in the Attribute Inspector.
- You can use your navigable interface prototype to help you hire a developer. Having a working interface makes it easier for you to explain what you need in terms of coding everything.
Application Testing
- Error correction can be time consuming and tedious for you. If you don’t give up and persevere, there will come a time when you will get better at this. You’ll start to recognize errors, track them down faster, and sometimes even know when they happened. A common mistake is to free an object from memory more than once. Another mistake is forgetting to allocate memory and instantiate an object before trying to add or assign to it. With each application your errors will gradually become less.
- Go to the Device and Debug option above, choose Run → Run with Performance Top → Leaks. This will enable Instruments and start the app on your device. Just continue to use the app normally. Sometimes the application will freeze while Instruments records and analyzes your memory usage. Any loss will create a red spike on the Leaks progress. The source of the loss will be displayed on the bottom half of the screen.
- Double-clicking on the lost object will take you to the code responsible or clicking the little arrow in the address column will show you the loss history. Sometimes the place of loss detection is not necessarily where it originates.
- If it’s really overwhelming, try the elimination process. Write comments and/or carefully ignore areas of code and run it. Sometimes you can narrow down the general scope and then even localize the line of code responsible. Once you know where it is, you can fix it or rewrite it. Remember, using Google often gives you the fastest direct links to internal Apple forums or documents that solve your problem.
- External testers can provide a lot of feedback that you might not expect. This can be especially useful if you have a complex application.
- To authorize test tester devices, you will need the UDID number of each device.
- Select Device from the drop-down list and then press the “Build” icon. In Finder, browse to your project folder and find the “Ad-Hoc-iphoneos” folder. Inside there will be an application. Copy the “AdHoc.mobileprovision” certificate you got from the iOS Dev Center into the same folder. Select apps and certificates and zip them. This zip file is transferable to your external testers. You will need to create a separate archive for each Ad-Hoc certificate. [5] X Research Sources
Release Your Project
- In order for new apps to receive Apple certification, they will need to be optimized for iOS 8 and Retina displays.
- Fill in the forms providing a description for the app, keywords, support page, category, contact email, copyright…
- Fill out the Authority and Pricing forms.
- Have your iTunes artwork ready. You will need a large 512×512 vector icon, as well as a few screenshots of your application. The screenshots can be taken from the iPhone emulator using the Command + Shift + 4 combination and then dragging the cross-hair cursor (cross viewfinder) over the selection. Make sure they are 320×480 for iPhone. Screenshots are a very important part of your app’s marketing, so make sure they represent the most important parts.
- Install the Application Uploader tool and launch it. The first time running the program will ask for your iTunes login information.
- The Application Uploader tool will check your iTunes Connect account and find any apps you’re willing to upload in binary. They will be displayed in a drop-down menu. Select the application you want, select the compressed Distribution you created previously, and upload it. The uploader will check a few things inside the package and will give an error if it detects something incorrect, such as some incorrect version, missing icons…If everything is ok, it will load zip file up and done.
- You can send free copies to expert reviewers who will either write about your app on their website or rate it on their YouTube channel. If you can, take it to the experts. popular reviewers, which can lead to increased app sales.
Advice
- Make your own unique feature, don’t copy the apps already on the App Store. Dig through the entire App Store to find out what’s available. Of course, if your idea is better, so be it.
- Always look for ways to improve your app.
- Try to update the app regularly.
- If you like paper reference books, head over to Amazon.com to find some books on iPhone development.
- Try to test it on as many different iDevices as possible. Even better, they install many different versions of iOS.
- If you hire an iOS developer and want to make sure that the iOS app looks like what you intended, you can design the interface for the app in Photoshop and then use a tool to convert it to an iOS app. The app works with Xcode/iOS.
- If you are learning how to code, block-structured languages or online classes can help.
Warning
- The iPhone SDK toolkit is constantly changing as devices evolve. If there is an update to the SDK during the course of the project, make sure you read the new points and changes before switching to it. Unless Apple states that new submissions must be compiled with the new SDK, you don’t need it at this time. If you upgrade, some of the methods you used before may no longer work, and although it’s unlikely that it will generate a compile-time warning, you should still be cautious.
- There’s no guarantee you’ll sell a lot or get a lot of downloads, but don’t be discouraged.
- Once you succeed and get an app on the App Store, don’t let yourself be intimidated by the mean people who write malicious reviews. Some people give you helpful feedback and others just like being rude.
- This is addictive; You may not be able to stop.
This article was co-written by Imran Alavi. Imran Alavi is an app developer & marketing specialist and CEO of Prpeadsoft, an app development and digital marketing company in San Francisco, CA. With over 10 years of experience, he specializes in web design, search engine optimization (SEO), internet-based marketing (Google, Facebook, LinkedIn AdWords), application development and software tactics for businesses. Karma. Imran holds a bachelor’s degree in computer science from the National College of Computing and Emerging Sciences, a master’s degree in computer science from San Francisco State University, and has completed Continuing Studies courses from the University of California. Stanford Graduate School of Business, Marketing, and Communications.
This article has been viewed 29,546 times.
The app market is constantly changing and shifting, and the success stories are big enough to catch anyone’s attention. Do you think you have the next big idea for an iPhone app? It’s easier to create than you think. Although you will need to learn to code a bit, most of the work on the interface can be done graphically. Creating an app takes time, learning, and patience, but who knows, you’ll be able to create the next Flappy Bird phenomenon! See Step 1 below to get started.
Thank you for reading this post How to Create an iPhone App at Tnhelearning.edu.vn You can comment, see more related articles below and hope to help you with interesting information.
Related Search: