媒体插件

从跨平台 API 中获取或选择照片和视频。

可用 Nuget：[ https://www.nuget.org/packages/Xam.Plugin.Media/] [1 ]

XAML

<StackLayout Spacing="10" Padding="10">
      <Button x:Name="takePhoto" Text="Take Photo"/>
      <Button x:Name="pickPhoto" Text="Pick Photo"/>
      <Button x:Name="takeVideo" Text="Take Video"/>
      <Button x:Name="pickVideo" Text="Pick Video"/>
      <Label Text="Save to Gallery"/>
      <Switch x:Name="saveToGallery" IsToggled="false" HorizontalOptions="Center"/>
      <Label Text="Image will show here"/>
      <Image x:Name="image"/>
      <Label Text=""/>
     
    </StackLayout>

码

namespace PluginDemo
{
    public partial class MediaPage : ContentPage
    {
        public MediaPage()
        {
            InitializeComponent();
            takePhoto.Clicked += async (sender, args) =>
            {

                if (!CrossMedia.Current.IsCameraAvailable || !CrossMedia.Current.IsTakePhotoSupported)
                {
                    await DisplayAlert("No Camera", ":( No camera avaialble.", "OK");
                    return;
                }
                try
                {
                    var file = await CrossMedia.Current.TakePhotoAsync(new Plugin.Media.Abstractions.StoreCameraMediaOptions
                    {
                        Directory = "Sample",
                        Name = "test.jpg",
                        SaveToAlbum = saveToGallery.IsToggled
                    });

                    if (file == null)
                        return;

                    await DisplayAlert("File Location", (saveToGallery.IsToggled ? file.AlbumPath : file.Path), "OK");

                    image.Source = ImageSource.FromStream(() =>
                    {
                        var stream = file.GetStream();
                        file.Dispose();
                        return stream;
                    });
                }
                catch //(Exception ex)
                {
                   // Xamarin.Insights.Report(ex);
                   // await DisplayAlert("Uh oh", "Something went wrong, but don't worry we captured it in Xamarin Insights! Thanks.", "OK");
                }
            };

            pickPhoto.Clicked += async (sender, args) =>
            {
                if (!CrossMedia.Current.IsPickPhotoSupported)
                {
                    await DisplayAlert("Photos Not Supported", ":( Permission not granted to photos.", "OK");
                    return;
                }
                try
                {
                    Stream stream = null;
                    var file = await CrossMedia.Current.PickPhotoAsync().ConfigureAwait(true);

                    if (file == null)
                        return;

                    stream = file.GetStream();
                    file.Dispose();

                    image.Source = ImageSource.FromStream(() => stream);

                }
                catch //(Exception ex)
                {
                   // Xamarin.Insights.Report(ex);
                   // await DisplayAlert("Uh oh", "Something went wrong, but don't worry we captured it in Xamarin Insights! Thanks.", "OK");
                }
            };

            takeVideo.Clicked += async (sender, args) =>
            {
                if (!CrossMedia.Current.IsCameraAvailable || !CrossMedia.Current.IsTakeVideoSupported)
                {
                    await DisplayAlert("No Camera", ":( No camera avaialble.", "OK");
                    return;
                }

                try
                {
                    var file = await CrossMedia.Current.TakeVideoAsync(new Plugin.Media.Abstractions.StoreVideoOptions
                    {
                        Name = "video.mp4",
                        Directory = "DefaultVideos",
                        SaveToAlbum = saveToGallery.IsToggled
                    });

                    if (file == null)
                        return;

                    await DisplayAlert("Video Recorded", "Location: " + (saveToGallery.IsToggled ? file.AlbumPath : file.Path), "OK");

                    file.Dispose();

                }
                catch //(Exception ex)
                {
                   // Xamarin.Insights.Report(ex);
                   // await DisplayAlert("Uh oh", "Something went wrong, but don't worry we captured it in Xamarin Insights! Thanks.", "OK");
                }
            };

            pickVideo.Clicked += async (sender, args) =>
            {
                if (!CrossMedia.Current.IsPickVideoSupported)
                {
                    await DisplayAlert("Videos Not Supported", ":( Permission not granted to videos.", "OK");
                    return;
                }
                try
                {
                    var file = await CrossMedia.Current.PickVideoAsync();

                    if (file == null)
                        return;

                    await DisplayAlert("Video Selected", "Location: " + file.Path, "OK");
                    file.Dispose();

                }
                catch //(Exception ex)
                {
                    //Xamarin.Insights.Report(ex);
                    //await DisplayAlert("Uh oh", "Something went wrong, but don't worry we captured it in Xamarin Insights! Thanks.", "OK");
                }
            };
        }
    }
}