Xamarin.Forms-打开Android Intent吗? [英] Xamarin.Forms - Open an Android Intent?

问题描述

我正在尝试在Xamarin.Forms(Android)中打开PDF

I am trying to open a PDF in Xamarin.Forms (Android)

我将如何在Android项目(PCL)中将此Java转换为C#以及使用什么名称空间?

How would I translate this Java to C# in the Android project (PCL) and what namespaces are used??

Intent intentUrl = new Intent(Intent.ACTION_VIEW);
intentUrl.setDataAndType(uri, "application/pdf");
intentUrl.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
mActivity.startActivity(intentUrl);

我已经走了这么远，但是我怎么称呼注入班的活动呢?

I've got this far, but how do I call the actiity in an injected class?

        Uri uri = new Uri("file:///" + PathToFile(filename));
        Intent intent = new Intent(Intent.ActionView);
        intent.SetDataAndType(uri, "application/pdf");
        intent.SetFlags(ActivityFlags.ClearTop);
        Android.MainActivity. ???????

推荐答案

解决方案

using Uri = Android.Net.Uri;

        Intent intent = new Intent(Intent.ActionView);
        intent.SetDataAndType(Uri.Parse("file:///" + PathToFile(filename)), "application/pdf");
        intent.SetFlags(ActivityFlags.ClearTop);
        Forms.Context.StartActivity(intent);
        return null;

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