Question

如果我不使用Picasso并仅使用BitmapFactory.decodeFile，我的ImageView将加载图像。将其更改为使用毕加索时，图像不会显示。即使我把Callback看成是否能够成功和失败，但是没有一个能够击中。

public override View GetView(int position, View convertView, ViewGroup parent) {

        View layout = convertView;
        ImageView imageView;

        var page = (BasePage)Pages [position];

        if (layout == null) {
            layout = LayoutInflater.From (Context).Inflate (Resource.Layout.view_page_thumbnail, null);
            imageView = layout.FindViewById<ImageView> (Resource.Id.imgThumbnail);
        } else {
            imageView = layout.FindViewById<ImageView> (Resource.Id.imgThumbnail);
            var bmpDrawable = (BitmapDrawable) imageView.Drawable;

            if (bmpDrawable != null && bmpDrawable.Bitmap != null) {
                bmpDrawable.Bitmap.Recycle ();
                bmpDrawable.Bitmap.Dispose ();
                bmpDrawable.Dispose();
                bmpDrawable = null;
            }
        }

        imageView.SetImageBitmap (null);


            Picasso.With (Application.Context)
                .Load (Android.Net.Uri.Parse("file://" + page.FileLocation))
            .CenterInside ()
            .Fit ()
                .Into (imageView, ()=>{
                    var a = 0;
                    var b= 0;
                },
                    ()=>{
                        var c=0;
                        var d=0;
                    }
                ); 

        imageView.Tag = page.FileLocation;
        layout.Tag = "Image" + position;

        return layout;

Answer 1

替换它：

.Load (Android.Net.Uri.Parse("file://" + page.FileLocation))

使用以下代码：

.Load (new File(page.FileLocation))

Answer 2

试试这个

picass.with(Context).load(url).into(ImageView).

毕加索：为什么我的适配器中没有加载位图

2 个答案: