這里是最low的采用webview方式打開的, 網(wǎng)上還有其他方式,就不一一列舉了,直說我遇到的坑,而且網(wǎng)上沒有說明的地方

1,首先在info.plish文件,

屏幕快照 2017-12-04 下午2.09.13.png

添加如下:

<key>CFBundleDocumentTypes</key>
 <array>
  <dict>
   <key>CFBundleTypeExtensions</key>
   <array>
    <string>pdf</string>
   </array>
   <key>CFBundleTypeIconFiles</key>
   <array>
    <string>copy.png</string>
   </array>
   <key>CFBundleTypeName</key>
   <string>Files</string>
   <key>LSHandlerRank</key>
   <string>Default</string>
   <key>LSItemContentTypes</key>
   <array>
    <string>com.adobe.pdf</string>
   </array>
  </dict>
  <dict>
   <key>CFBundleTypeExtensions</key>
   <array>
    <string>pdf</string>
   </array>
   <key>CFBundleTypeIconFiles</key>
   <array/>
   <key>LSHandlerRank</key>
   <string>Default</string>
   <key>Document Content Type UTIs</key>
   <array>
    <string>com.adobe.pdf</string>
   </array>
  </dict>
 </array>

這時候,你在選擇應(yīng)用的時候, 就會發(fā)現(xiàn)你的應(yīng)用出現(xiàn)在了列表中,

2,打開文件

在Appdelegate中,添加如下

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation
{
    if (url != nil) {
        NSString *path = [url absoluteString];
        NSMutableString *string = [[NSMutableString alloc] initWithString:path];
        if ([path hasPrefix:@"file://"]) {
            [string replaceOccurrencesOfString:@"file://" withString:@"" options:NSCaseInsensitiveSearch  range:NSMakeRange(0, path.length)];
        }
        
        [[NSNotificationCenter defaultCenter] postNotificationName:@"pdf" object:string];
 
    }
    
    return YES;
}

在創(chuàng)建的顯示文件的viewcontroller中,

- (void)viewDidLoad {
    [super viewDidLoad];
    
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(opening:) name:@"pdf" object:nil];
    
 
}
- (void)dealloc
{
    
    [[NSNotificationCenter defaultCenter] removeObserver:self name:@"pdf" object:nil];
    
}

- (void)opening:(NSNotification *)notifacation
{
    self.webview = [[UIWebView alloc] initWithFrame:self.view.bounds];
    NSString *str = notifacation.object;
    
//注意:此行代碼為防止文件名稱為中文,造成打開文件報錯,進行轉(zhuǎn)碼
     NSString *dataGBK = [str stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
    
    NSURL *pdfURL = [NSURL fileURLWithPath:dataGBK];
    
    
    NSURLRequest *request = [NSURLRequest requestWithURL:pdfURL];
    [self.webview setScalesPageToFit:YES];
    [self.webview loadRequest:request];

    [self.view addSubview:self.webview];
 
}

注意 如果你打開的是中文名稱的PDF文件報錯了 請?zhí)砑尤缦麓a

//將路徑中的utf8碼轉(zhuǎn)為中文字符
    NSString *dataGBK = [str stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];