Import And Export Extrapp Data Via Email In Ios App

Submitted By Whatisthis1234
Words: 1396
Pages: 6
Open Document
How To Import and Export App Data Via Email in your iOS App
-------------------------------------------------
If you're new here, you may want to subscribe to my RSS feed or follow me on Twitter. Thanks for visiting!

Load Attachments In Your App!
A lot of developers want to be able to share their app data via email. It’s a convenient way for users to send data to each other or between devices – and it may even net you some new customers!
Luckily, this is pretty easy to do on the iPhone – you just have to set a few keys in your Info.plist and handle a few callbacks so the OS can open your app with the URL to import.
So we’ll cover how to do exactly that in this tutorial!
We’re going to start with the Scary Bugs project we’ve been building starting from the simple app tutorial on up to the file sharing tutorial.
So if you don’t have a copy of the project where we left off already, grab a copy!
Setting Up Your Info.plist
We’ve already laid most of the groundwork we need in order to support sharing our app data via email – we’ve written code to save a copy of our app data as a single file.
So the next thing we need to do is set up our Info.plist to let the OS know that we can handle “Scary Bug Documents”. The way you do this on iOS is by registering your app as able to handle certain UTIs, and exporting any UTIs that are not already known by the system.
In summary, UTIs are just unique identifiers that represent your document, such as “com.raywenderlich.scarybugs.sbz”. There are built-in ones for common document types such as “public.jpeg” or “public.html” as well.
So we’re register our app as being able to handle a UTI we make up for our app, and then we’re going to tell the OS a bit about our UTI, such as what file name extension it uses and what mime-type it’s encoded as in email.
So let’s see it in action! Open up ScaryBugs-Info.plist, and add the following entries:

You can read up on what each of these value’s mean in Apple’s UTI guide, but here are the important things to note: * The CFBundleDocumentTypes entry says what UTIs our app supports – in this case, the com.raywenderlich.scarybugs.sbz UTI, as an Owner/Editor. * The UTExportedTypeDeclaration entry gives some information about com.raywenderlich.scarybugs.sbz, since it isn’t a public UTI. Here we say that any file ending in .sbz or has a mime type of application/scarybugs is that kind of file.
Believe it or not, by setting these keys that’s all it takes for the OS to start sending our app files that end with .sbz. You can test it out by emailing yourself a copy of this sample bug if you want:

You can hold and tap on the attachment and it will prompt you if you want to open it in Scary Bugs. If you do, it will open up Scary Bugs, but of course it won’t load because we haven’t added the code for that yet! So let’s do that next.
Importing App Data
When Mail or some other app wants to send your app a file, it does so via one of two methods: via application:didFinishLaunchingWithOptions, passing the URL in the UIApplicationLaunchOptionsURLKey, or via application:handleOpenURL.
To understand what happens when, Oliver Drobnick has put together a very handy article with diagrams on what gets called when.
So let’s implement that real quick – it will be easy since we already have much of the supporting code in place. Make the following mods to ScaryBugDoc.h: // After @interface - (BOOL)importFromURL:(NSURL *)importURL; |
The following to ScaryBugDoc.m: // Add new function - (BOOL)importFromURL:(NSURL *)importURL { NSData *zippedData = [NSData dataWithContentsOfURL:importURL]; return [self importData:zippedData]; } |
The following in RootViewController.h: // After @interface - (void)handleOpenURL:(NSURL *)url; |
And the following in RootViewController.m: // New method
Show More

Related Documents: Import And Export Extrapp Data Via Email In Ios App

Tamoxifen Outline

Alysha Higgs Tamoxifen Outline I. Introduction Tamoxifen is the “oldest and most prescribed SERM” (10). SERM is selective estrogen receptor modulators. It is used to treat advanced-stage hormone-receptor-positive disease and breast cancer. a. is a synthetic drug b. used in mice for inducible cre c. synthesized by allylation of benzaldehyde and alkylation reaction of anisole and ethers. d. Binds to estrogen receptors e. Comes with side effects II. Background Tamoxifen is used in two different…

Words 859 - Pages 4

Outline On Racism

Camilla Bedoya Professor Sellers ENC 1101 – CRN 80930 5 November 2015 Paper 3 Outline Thesis: I believe understanding the varied backgrounds, from the lower and higher levels of education are the only way students and educators will benefit when studying one degree from another. I. Introduction A. Racism has come to be through what people believe and their underlying morals. II. The Problem: Identify and Demonstrate A. Racism begins out of a propensity to create racial stereotypes on the…

Words 382 - Pages 2

Illinois Outline

May 1, 2012 Period 7, Ms. Davis Illinois State Project Report Outline I. Introduction A. Name of state: Illinois, Meaning: name of Native American Indian tribe meaning “tribe of superior men” B. Location of state in the U.S: Situated in the eastern north-central US, Region name: Midwestern region C. Some unusual facts about Illinois: 1. The cities, Ottawa, Freeport, Jonesboro, Charleston, Galesburg, Quincy and Alton all hosted the famous Lincoln-Douglas…

Words 940 - Pages 4

Hinduism Outline

Ayanle Abdi 3/1/15 Outline on Hinduism * Hinduism started about 1500 BCE in the area of India It’s roots are in the religions of the Indus River Valley Civilization and the Aryans who lived in India after them. * Third largest religion in the world * They believe in one “god” type force called Brahman, but celebrate Brahman in the form of many gods, each with a specific Function, this is because the concept of Brahman is too large for an ordinary Humans to comprehend, so they put faces…

Words 368 - Pages 2

Sentence Outline

Sentence Outline Organizations consider a full range of criteria’s when determining goals and objectives. Distinguishing between short-term, long-term, manifest, and latent goals is the fundamental key involved in developing effective organizational goals and objectives. Properly analyzing organizational goals and objectives and implementing according to the specific guidelines can ensure its effectiveness. Goals: Although goals may often seem vague, they identify an organization’s purpose or…

Words 402 - Pages 2

Psychology Outline

Rachel Carpenter Chapter 1 Outline December 27th, 2015 I. Psychology Is A Way of Thinking a. As you go farther in to the field of Psychology you can anticipate to learn more about things like cognition, research about the brain, social behavior, child development and clinical disorders. b. Psychologists are empiricists, meaning one's conclusions are based on systematic observations. They will conduct studies on humans or animals in either a specific environment or in their natural environment.…

Words 630 - Pages 3

Baseball Outline

Justin Furney 24 Nov 2014 ENC-1101-123 Prof. Horn Word Count: 1865 Outline: Resurrecting Baseball THESIS: Major League Baseball should allow players to use anabolic steroids under controlled supervision of professional physicians because it would increase the sports’ revenue and allow fans to fall back in love with the game. I. Major League Baseball’s ratings have the potential to skyrocket if anabolic steroids were allowed under supervision. A. Chris Smith reflects on how the steroid era affected…

Words 3361 - Pages 14

Outline On Hope

Hopes, Dreams, And Goals [A] Do you have hopes, dreams, and/or goals? [B] Well the people/ characters in Of Mice and Men, War Dance, and The Secret Life of Walter Mitty. Also Joe Wilner explains why hope is important in How we Lose Hope and How to Get it Back. [C] In each film/ documentary or article they have hopes, dreams, and/or goals that push them to get to a better place in life or just help them get threw life easier. [D] Hopes, dreams, and goals allow people to find happiness in any situation…

Words 993 - Pages 4

Essay Outline

Essay Outline Thesis statement: Macbeth is clearly a tragic hero, in that he has noble characteristics but struggles in a fatal flaw, his distorted perception of real life, and he’s responsible for his downfall. Topic sentences: From the moment the witches told Macbeth that he is going to become king he struggled with one fatal flaw- ambition. His ambition was to become king and for no one to take his throne from him. He did anything he could to become king, it didn’t matter to him what he had…

Words 576 - Pages 3

Essay outline

WRITING AND PRESENTATION ASSIGNMENT # 1: “The Green revolution in Cars” Prepared for Prepared by October 23, 2013 THE GREEN REVOLUTION IN CARS 1.0 Introduction 1.1 Attention Grabber 1.2 Transition 1.3 Thesis: (subject, attitude, map) Attitude (for, or against, take a stand) I believe is political lie (cooperate with us) Map: -oil industry -consumer apathy -government The Green revolution in cars is a political lie which has been…

Words 932 - Pages 4