Question

我有一个带有三个标签的Tabbar iOS应用程序。我将每个标签设置为UIWebView。我希望每个Web视图都显示不同的PDF。如何通过代码将每个webview分配给相应的pdf？

Answer 1

在AppDelegate：

中看起来会是这样的

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    WebViewController *webViewController1 = [[WebViewController alloc] initWithPDFAtURL:@"urlToPDF1"];
    WebViewController *webViewController2 = [[WebViewController alloc] initWithPDFAtURL:@"urlToPDF2"];
    WebViewController *webViewController3 = [[WebViewController alloc] initWithPDFAtURL:@"urlToPDF3"];

    UITabBarController *tabBarController = [[UITabBarController alloc] init];
    [tabBarController setViewControllers:[NSArray arrayWithObjects:webViewController1, webViewController2, webViewController3, nil]];
    self.window.rootViewController = tabBarController;

    [self.window makeKeyAndVisible];
    return YES;
}

您需要拥有一个包含UIWebView的视图控制器，它可能看起来像：

// WebViewController.h
@interface WebViewController : UIViewController

@end

// WebViewController.m
@interface WebViewController ()

@property (nonatomic, strong) NSURL *_pdfURL;

@end

@implementation WebViewController
@synthesize _pdfURL;

- (id)initWithPDFAtURL:(NSURL *)url {
    self = [super init];
    if (self) {
        _pdfURL = url;
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    // Load the PDF into a UIWebView
}

不同选项卡中的多个PDF

1 个答案: