Flutter url_launcher 下载pdf文件而不是在浏览器中打开它

发布于 2025-01-21 00:06:50 字数 626 浏览 4 评论 0原文

我正在使用url_launcher： ^5.7.5，当我通过启动功能中的PDF URL时，它会继续下载PDF，而不是在我的浏览器上打开它，

onTap: () async {
    
   url="http://3.65.45.149/uploads/store/vendor_report/vendor_pickup_report_257.pdf";
       if (await canLaunch(url)){
         await launch(url,
         headers: { "Content-Type":"application/pdf",
                     "Content-Disposition":"inline"}, );
            print("browser url");
            print(url);
          }
              else
              // can't launch url, there is some error
              throw "Could not launch $url";
                                                    },

原文

I'm using url_launcher: ^5.7.5 and when i'm passing a pdf url in the launch function it it keeps downloading the pdf instead of opening it on my browser,

onTap: () async {
    
   url="http://3.65.45.149/uploads/store/vendor_report/vendor_pickup_report_257.pdf";
       if (await canLaunch(url)){
         await launch(url,
         headers: { "Content-Type":"application/pdf",
                     "Content-Disposition":"inline"}, );
            print("browser url");
            print(url);
          }
              else
              // can't launch url, there is some error
              throw "Could not launch $url";
                                                    },

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醉生梦死 2025-01-28 00:06:50

在新版本的 URl_laucher 中，您需要手动指定启动模式，如下所示：

return await launchUrl(Uri.parse(command),
        mode: LaunchMode.externalNonBrowserApplication);

for webview mode: Launch.inAppWebView;

In the new version of URl_laucher you need to manually specify the launch mode like this:

return await launchUrl(Uri.parse(command),
        mode: LaunchMode.externalNonBrowserApplication);

for webview mode: Launch.inAppWebView;

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才能让你更想念 2025-01-28 00:06:50

更新了url_launcher flutter软件包的较新版本。 启动和canlaunch函数已弃用。

您可以简化代码并在紧凑的功能中提取它：

void openPdfFromUrl(String url) {
  debugPrint('opening PDF url = $url');
  var googleDocsUrl = 'https://docs.google.com/gview?embedded=true&url=${Uri.encodeQueryComponent(url)}';
  debugPrint('opening Google docs with PDF url = $googleDocsUrl');
  final Uri uri = Uri.parse(googleDocsUrl);
  launchUrl(uri);
}

Updated for the newer versions of the url_launcher flutter package. The launch and canLaunch functions are deprecated.

You can simplify your code and extract it in a compact function:

void openPdfFromUrl(String url) {
  debugPrint('opening PDF url = $url');
  var googleDocsUrl = 'https://docs.google.com/gview?embedded=true&url=${Uri.encodeQueryComponent(url)}';
  debugPrint('opening Google docs with PDF url = $googleDocsUrl');
  final Uri uri = Uri.parse(googleDocsUrl);
  launchUrl(uri);
}

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