最近公司有这样需求:当用户用微信,qq或者其他app接Word,Ecxel,PDF文件时,选择打开方式时,自己的app能出现打开方式列表中,并能跳转到自己的app打开或者上传此类文件,解决办法如下:

以下只是示例,具体可以参考 https://developer.apple.com/library/content/documentation/Miscellaneous/Reference/UTIRef/Articles/System-DeclaredUniformTypeIdentifiers.html#//apple_ref/doc/uid/TP40009259-SW1

部分代码参考自 http://stackoverflow.com/questions/15836145/associate-files-type-with-my-iphone-app

1.在info.plist文件作如下配置

• 1.1 新增 CFBundleDocumentTypes 这个key,它对应的value是一个字典数组,具体配置如下

<key>CFBundleDocumentTypes</key>
 <array>
    <dict>
       <key>CFBundleTypeName</key>
           <string>Molecules Structure File</string>
       <key>CFBundleTypeIconFiles</key>
       <array>
          <string>icon@2x.png</string>
          <string>icon.png</string>
       </array>
      <key>LSItemContentTypes</key>
         <array>
            <string>com.adobe.pdf</string>
            <string>com.microsoft.word.doc</string>
            <string>com.microsoft.excel.xls</string>
         </array>
     <key>CFBundleTypeRole</key>
         <string>Viewer</string>
     <key>LSHandlerRank</key>
       <string>Owner</string>
    </dict>
 </array>

• 1.2 声明支持的文件类型和文件拓展名,新增UTExportedTypeDeclarations这个key,配置如下

<key>UTExportedTypeDeclarations</key>
 <array>
  <dict>
   <key>UTTypeConformsTo</key>
   <array>
    <string>public.data</string>
    <string>public.composite-content</string>
   </array>
   <key>UTTypeIdentifier</key>
   <string>com.adobe.pdf</string>
   <key>UTTypeDescription</key>
   <string>PDF文档</string>
   <key>UTTypeTagSpecification</key>
   <dict>
    <key>public.mime-type</key>
    <string>application/pdf</string>
    <key>public.filename-extension</key>
    <array>
     <string>pdf</string>
    </array>
   </dict>
  </dict>
  <dict>
   <key>UTTypeConformsTo</key>
   <array>
    <string>public.data</string>
   </array>
   <key>UTTypeIdentifier</key>
   <string>com.microsoft.word.doc</string>
   <key>UTTypeDescription</key>
   <string>Word文档</string>
   <key>UTTypeTagSpecification</key>
   <dict>
    <key>public.mime-type</key>
    <string>application/msword</string>
    <key>public.filename-extension</key>
    <array>
     <string>doc</string>
     <string>docx</string>
    </array>
   </dict>
  </dict>
  <dict>
   <key>UTTypeConformsTo</key>
   <array>
    <string>public.data</string>
   </array>
   <key>UTTypeIdentifier</key>
   <string>com.microsoft.excel.xls</string>
   <key>UTTypeDescription</key>
   <string>Excel Document</string>
   <key>UTTypeTagSpecification</key>
   <dict>
    <key>public.mime-type</key>
    <string>application/vnd.ms-excel</string>
    <key>public.filename-extension</key>
    <array>
     <string>xls</string>
    </array>
   </dict>
  </dict>
 </array>

2.创建一个控制器用于处理这些文件,并在AppDelegate方法中作监听这些文件的打开

• 2.1 我是创建一个普通控制器QYFileReaderController,控制器的有一个UIWebView属性,用UIWebView就可以自动解析这些文件
• 2.2 QYFileReaderController对外暴露一个NSUrl类型的属性,用于接收这些文件的url
  代码如下:

@interface QYFileReaderController : UIViewController
/** 文件绝对url */
@property (nonatomic,strong)NSURL *absoluteUrl;
@end

@interface QYFileReaderController ()
@property (weak, nonatomic)  UIWebView *webView;
@end

@implementation QYFileReaderController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    [self setupWebView];
    // 调用
    [self.webView loadRequest:[NSURLRequest requestWithURL:self.absoluteUrl]];
}
   
- (void)setupWebView{
    UIWebView *webView = [[UIWebView alloc]initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height)];
    self.webView = webView;
    [self.view addSubview:self.webView];
    
    // 自动适应大小
    self.webView.scalesPageToFit = YES;
    
    // 关闭弹簧效果
    self.webView.scrollView.bounces = NO;    
}

• 2.3 在AppDelegate的 (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url方法中监听这些文件的打开和获取对应文件的url,并传递url给QYFileReaderController

- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
//    NSLog(@"url:%@",url.absoluteString);
//    NSLog(@"host:%@",url.host);
    BOOL isLogin = YES; // 假设用户已登录
   if (isLogin)
    {
        QYFileReaderController *readerVC = [[QYFileReaderController alloc] init];
        readerVC.absoluteUrl = url;
        UINavigationController *nav = self.window.rootViewController;
        [nav pushViewController:readerVC animated:YES];
    }
    return YES;
}