ios - 不同选项卡中的多个 PDF

Question

我有一个带有三个选项卡的 Tabbar iOS 应用程序。我将每个选项卡都设置为 UIWebView。我希望每个 Web 视图显示不同的 PDF。如何通过代码将每个 webview 分配给其相应的 pdf？

Answer 1

它在您的 中看起来像这样AppDelegate：

- (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;
}

您将需要一个视图控制器来保存UIWebView, 并且可能类似于：

// 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
}