IOS allows its App to be displayed in the list of other apps

IOS allows its App to be displayed in the list of other apps

For applications such as Baidu online storage, you can use the following applications to open files. My jpg in the red box below is an example of my work. Because no Icon is provided in the example, the default icon is displayed.

The following are the main steps and code for this example. <喎?http: www.bkjia.com kf ware vc " target="_blank" class="keylink"> VcD4KPHA + signature + CjxwPgoxoaLU2s/uxL + signature "http://www.bkjia.com/uploads/allimg/141104/0401514a5-1.png" width = "12" height = "12" alt = "view CODE on CODE">

1. CFBundleDocumentTypes
4. CFBundleTypeIconFiles
6. Icon@2x.png
7. Icon.png
9. CFBundleTypeName
10. Molecules Structure File
11. CFBundleTypeRole
12. Viewer
13. LSHandlerRank
14. Owner
15. LSItemContentTypes
17. Com.fzrong.jpg
18. Org. gnu. gnu-zip-archive
22. UTExportedTypeDeclarations
25. UTTypeConformsTo
27. Public. plain-text
28. Public. text
30. UTTypeDescription
31. Molecules Structure File
32. UTTypeIdentifier
33. Com.fzrong.jpg
34. UTTypeTagSpecification
36. Public. filename-extension
37. Jpg
38. Public. mime-type
39. Image/jpg
42. This tells the system that you can open the jpg file type.

    
    

    2. When you open your app, you need to capture the file path of the Resource:

    Add the following code to Appdelegate:

    [Objc]View plaincopy
    1. -(BOOL) application :( UIApplication *) application openURL :( NSURL *) url sourceApplication :( NSString *) sourceApplication annotation :( id) annotation
    2. {
    3. If (url! = Nil ){
    4. NSString * path = [url absoluteString];
    5. NSMutableString * string = [[NSMutableString alloc] initWithString: path];
    6. If ([path hasPrefix: @ "file: //"]) {
    7. [String replaceOccurrencesOfString: @ "file: //" withString: @ "" options: NSCaseInsensitiveSearch range: NSMakeRange (0, path. length)];
    8. }
    9. [Self. viewController openPng: string];
    11. }
    13. Return YES;
    14. }

        Remove the file: // file path header. Otherwise, the resource cannot be found.

        3. Open jgp display in your ViewController:

        [Objc]View plaincopy
        1. -(Void) openPng :( NSString *) string
        2. {
        3. UIImage * image = [[UIImage alloc] initWithContentsOfFile: string];
        4. Float width = image. size. width;
        5. Float height = image. size. height;
        6. If (length> 320 ){
        7. Height = (height/width) * 300;
        8. Length = 300;
        9. }
        11. CGRect frame = CGRectMake (0, 20, width, height );
        12. ImageView. frame = frame;
        14. ImageView. image = image;
        16. }
            The following figure shows the effect after opening:

            Html

            Http://stackoverflow.com/questions/20869815/open-file-from-local-file-system-with-default-application-ios