变更记录

序号 录入时间 录入人 备注
1 2015-04-25 Alfred Jiang -
2 2015-12-23 Alfred Jiang -

方案名称

应用间通信 - 文档导入导出实现

关键字

应用间通信 \ 文档 \ 文档导入 \ 文档导出 \ 其他应用共享打开

需求场景

  1. 需要将自己应用内文档分享到其他应用打开时
  2. 需要自己的应用打开其他应用中的文档时

参考链接

  1. Importing & Exporting Documents in iOS
  2. CSDN - iOS App让自己的应用在其他应用中打开列表中显示

详细内容

1. 导出自己应用内文档到其他应用打开

  1. ViewController.h

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    //
    //  ViewController.h
    //  test
    //
    //  Created by Alfred Jiang on 4/25/15.
    //  Copyright (c) 2015 Alfred Jiang. All rights reserved.
    //

    #import <UIKit/UIKit.h>

    @interface ViewController : UIViewController<UIDocumentInteractionControllerDelegate>

    - (IBAction)btnDisplayFiles:(id)sender;
    - (void)openDocumentIn;

    @end

  2. ViewController.m

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    //
    //  ViewController.m
    //  test
    //
    //  Created by Alfred Jiang on 4/25/15.
    //  Copyright (c) 2015 Alfred Jiang. All rights reserved.
    //

    #import "ViewController.h"

    @interface ViewController ()

    @property (nonatomic,strong) UIDocumentInteractionController *documentController;

    @end

    @implementation ViewController
    @synthesize documentController;

    - (void)viewDidLoad {
        [super viewDidLoad];
    }

    - (void)didReceiveMemoryWarning {
        [super didReceiveMemoryWarning];
    }

    - (IBAction)btnDisplayFiles:(id)sender
    {
        [self openDocumentIn];
    }

    -(void)openDocumentIn {
        NSString * filePath = [[NSBundle mainBundle] pathForResource:@"ee" ofType:@"pdf"];
        documentController = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:filePath]];
        documentController.delegate = self;
        documentController.UTI = @"com.adobe.pdf";
        [documentController presentOpenInMenuFromRect:CGRectZero inView:self.view animated:YES];
    }

    -(void)documentInteractionController:(UIDocumentInteractionController *)controller willBeginSendingToApplication:(NSString *)application {
        NSLog(@"documentInteractionController : willBeginSendingToApplication");
    }

    -(void)documentInteractionController:(UIDocumentInteractionController *)controller didEndSendingToApplication:(NSString *)application {
         NSLog(@"documentInteractionController : didEndSendingToApplication");
    }

    -(void)documentInteractionControllerDidDismissOpenInMenu:(UIDocumentInteractionController *)controller {
        NSLog(@"documentInteractionControllerDidDismissOpenInMenu");
    }

    @end

2. 通过 iTunes 传输文档到手机并打开

  1. 在 info.plist 中增加 Application supports iTunes file sharing 为 YES (亦可设置 UIFileSharingEnabled 为 YES);

  2. 链接 iPhone 至 iTunes ，可在 iPhone -> Apps -> File Sharing 中看到自己应用;

Image_00104_00001

  1. 在 iTunes 选中自己应用，点击 Add… 按钮可添加文档至自己应用中；

  2. 在自己应用中打开通过 iTunes 传输到应用中的文档

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    //
    //  ViewController.h
    //  test
    //
    //  Created by Alfred Jiang on 4/25/15.
    //  Copyright (c) 2015 Alfred Jiang. All rights reserved.
    //

    #import <UIKit/UIKit.h>

    @interface ViewController : UIViewController

    @property (weak, nonatomic) IBOutlet UIWebView *webView;

    - (IBAction)btnDisplayFiles:(id)sender;

    -(void)handleDocumentOpenURL:(NSURL *)url;
    -(void)displayAlert:(NSString *) str;
    -(void)loadFileFromDocumentsFolder:(NSString *) filename;
    -(void)listFilesFromDocumentsFolder;

    @end

    //
    //  ViewController.m
    //  test
    //
    //  Created by Alfred Jiang on 4/25/15.
    //  Copyright (c) 2015 Alfred Jiang. All rights reserved.
    //

    #import "ViewController.h"

    @interface ViewController ()

    @end

    @implementation ViewController

    - (void)viewDidLoad {
        [super viewDidLoad];
    }

    - (void)didReceiveMemoryWarning {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }

    - (IBAction)btnDisplayFiles:(id)sender {
        [self listFilesFromDocumentsFolder];
    }

    - (void)handleDocumentOpenURL:(NSURL *)url {
        NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
        [_webView setUserInteractionEnabled:YES];
        [_webView loadRequest:requestObj];
    }

    -(void)loadFileFromDocumentsFolder:(NSString *) filename {
        //---get the path of the Documents folder---
        NSArray *paths = NSSearchPathForDirectoriesInDomains(
                                                             NSDocumentDirectory, NSUserDomainMask, YES);
        NSString *documentsDirectory = [paths objectAtIndex:0];
        NSString *filePath = [documentsDirectory
                              stringByAppendingPathComponent:filename];
        NSURL *fileUrl = [NSURL fileURLWithPath:filePath];
        [self handleDocumentOpenURL:fileUrl];
    }

    -(void)listFilesFromDocumentsFolder {
        //---get the path of the Documents folder---
        NSArray *paths = NSSearchPathForDirectoriesInDomains(
                                                             NSDocumentDirectory, NSUserDomainMask, YES);
        NSString *documentsDirectory = [paths objectAtIndex:0];

        NSFileManager *manager = [NSFileManager defaultManager];
        NSArray *fileList =
        [manager contentsOfDirectoryAtPath:documentsDirectory error:nil];
        NSMutableString *filesStr =
        [NSMutableString stringWithString:@"Files in Documents folder \n"];
        for (NSString *s in fileList){
            [filesStr appendFormat:@"%@ \n", s];
        }

        [self loadFileFromDocumentsFolder:@"ee.pdf"];
    }

    @end

3. 在其他应用中调用自己的应用打开系统支持的默认文档

  1. 在 info.plist 中增加如下 字段
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    <key>CFBundleDocumentTypes</key>
    <array>
        <dict>
            <key>CFBundleTypeName</key>
            <string>PDF Document</string>
            <key>LSHandlerRank</key>
            <string>Alternate</string>
            <key>CFBundleTypeRole</key>
            <string>Viewer</string>
            <key>LSItemContentTypes</key>
            <array>
                <string>com.adobe.pdf</string>
            </array>
        </dict>
    </array>

Image_00104_00002

  1. ViewController 代码实现如下

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    //
    //  ViewController.h
    //  test
    //
    //  Created by Alfred Jiang on 4/25/15.
    //  Copyright (c) 2015 Alfred Jiang. All rights reserved.
    //

    #import <UIKit/UIKit.h>

    @interface ViewController : UIViewController

    @property (weak, nonatomic) IBOutlet UIWebView *webView;

    -(void)handleDocumentOpenURL:(NSURL *)url;

    @end

    //
    //  ViewController.m
    //  test
    //
    //  Created by Alfred Jiang on 4/25/15.
    //  Copyright (c) 2015 Alfred Jiang. All rights reserved.
    //

    #import "ViewController.h"

    @interface ViewController ()

    @end

    @implementation ViewController
    @synthesize webView;

    - (void)viewDidLoad {
        [super viewDidLoad];
    }

    - (void)didReceiveMemoryWarning {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }

    - (void)handleDocumentOpenURL:(NSURL *)url {
        NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
        [self.webView setUserInteractionEnabled:YES];
        [self.webView loadRequest:requestObj];
    }

    @end

  2. 在 Appdelegate.m 中增加如下代码

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    -(BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
        if (url != nil && [url isFileURL]) {
            [(ViewController *)self.window.rootViewController handleDocumentOpenURL:url];
        }
        return YES;
    }

  3. 在支持 “用其他应用打开” 选项的应用中就可以看到自己的应用了
    Image_00104_00003

4. 在其他应用中调用自己的应用打开自定义文档

  1. 在 info.plist 中增加如下 字段
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    <key>CFBundleDocumentTypes</key>
        <array>
            <dict>
                <key>CFBundleTypeName</key>
                <string>Sudoku Game Document</string>
                <key>LSHandlerRank</key>
                <string>Owner</string>
                <key>CFBundleTypeRole</key>
                <string>Editor</string>
                <key>LSItemContentTypes</key>
                <array>
                    <string>net.learn2develop.offlinereader.sdk</string>
                </array>
            </dict>
        </array>
        <key>UTExportedTypeDeclarations</key>
        <array>
            <dict>
                <key>UTTypeConformsTo</key>
                <array>
                    <string>public.data</string>
                </array>
                <key>UTTypeTagSpecification</key>
                <dict>
                    <key>public.filename-extension</key>
                    <string>testextension</string>
                    <key>public.mime-type</key>
                    <string>application/test</string>
                </dict>
                <key>UTTypeIdentifier</key>
                <string>net.learn2develop.offlinereader.sdk</string>
                <key>UTTypeDescription</key>
                <string>Sudoku Game Document</string>
            </dict>
        </array>

Image_00104_00004

  1. 在其他应用中选择 “用其他应用打开” 选项的应用中就可以看到自己的应用了
    Image_00104_00005Image_00104_00006

效果图

（无）

备注

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