Question

我已编写此代码以使用UIDocumentInteractionController显示pdf.But，我不知道如何在本地目录中搜索pdf并在iOS 8及更低版本中打开..有什么帮助吗？

<asp:GridView ID="grdDWlocations" CssClass="table table-hover table-striped" runat="server" GridLines="None" ShowHeaderWhenEmpty="True"
    EmptyDataText="No data found..." AutoGenerateColumns="False">
    <Columns>
        <asp:TemplateField HeaderText="" Visible="true">
            <HeaderTemplate>
                <asp:CheckBox ID="allDWlocchk" runat="server" Checked="true" Width="10px" onclick="CheckAllgrdReqDW(this)"></asp:CheckBox>
            </HeaderTemplate>
            <ItemTemplate>
                <asp:CheckBox ID="chk_DWlocReq" runat="server" Checked="true" Width="5px" OnCheckedChanged="chk_Req_CheckedChangedDW_Click" />
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Code">
            <ItemTemplate>
            <asp:Label ID="lbl_DWCode" runat="server" Text='<%# Bind("Ml_loc_cd") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Description">
            <ItemTemplate>
                <asp:Label ID="lbl_DWDescription" runat="server" Text='<%# Bind("Ml_loc_desc") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

Answer 1

您可以使用webview在iOS 8中查看PDF。试试以下代码，

if let pdf = NSBundle.mainBundle().URLForResource("myPDF", withExtension: "pdf", subdirectory: nil, localization: nil)  {
        let req = NSURLRequest(URL: pdf)
        let webView = UIWebView(frame: CGRectMake(0,0,self.view.frame.size.width,self.view.frame.size.height))
        webView.loadRequest(req)
        self.view.addSubview(webView)
    }

OR

if let baseUrl = NSURL.fileURLWithPath(pathURL) {
let fileURL = baseUrl.URLByAppendingPathComponent(NFConstants.NFCoreDataStringIdentifiers.CoreDataStoresPathComponent.rawValue)
}

希望这会对你有所帮助。

Answer 2

UIDocumentInteractionController可用于（iOS 3.2，*）。

查看PDF文件：

var documentInteractionController: UIDocumentInteractionController!

@IBAction func openDocument(sender: UIButton) {
  let URL: NSURL = NSBundle.mainBundle().URLForResource("pdf-sample", withExtension: "pdf")!

    if (URL != "") {
        // Initialize Document Interaction Controller
        self.documentInteractionController = UIDocumentInteractionController(URL: URL)

        // Configure Document Interaction Controller
        self.documentInteractionController.delegate = self

        // Present Open In Menu
        self.documentInteractionController.presentOptionsMenuFromRect(sender.frame, inView: self.view, animated: true)
            //presentOpenInMenuFromRect(button.frame, inView: self.view, animated: true)
    }
}

// MARK: UIDocumentInteractionControllerDelegate
func documentInteractionControllerViewControllerForPreview(controller: UIDocumentInteractionController) -> UIViewController {
    return self
}

在iOS 8中打开PDF URL？

2 个答案: