变更记录

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

import

@interface ViewController : UIViewController

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

@end

2. ViewController.m
```objective-c
//
//  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;

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

import

@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
```xml
<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>

1. ViewController 代码实现如下 ```objective-c // // ViewController.h // test // // Created by Alfred Jiang on 4/25/15. // Copyright (c) 2015 Alfred Jiang. All rights reserved. //

import

@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

3. 在 Appdelegate.m 中增加如下代码
```objective-c
-(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;
}

1. 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

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

        <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>
   

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

效果图

（无）

备注

（无）