之后，毕加索加载安卓得到绘制的图像 [英] android get Drawable image after picasso loaded

问题描述

我使用的毕加索库从URL加载图像。在code我用的是下面。

I am using Picasso library to load image from url. The code I used is below.

Picasso.with(getContext()).load(url).placeholder(R.drawable.placeholder)
                .error(R.drawable.placeholder).into(imageView);

我想要做的是让从URL加载的图像。我用

What I wanna do is to get the image that loaded from url. I used

Drawable image = imageView.getDrawable();

不过，这并总是从URL返回图像加载图像占位符代替。难道你们有什么想法？我应该如何访问绘制的图像，它只是从URL加载。

However, this will always return placeholder image instead of the image load from url. Do you guys have any idea? How should I access the drawable image that it's just loaded from url.

在此先感谢。

推荐答案

这是因为图像加载异步。你需要得到提拉，当它完成加载到视图：

This is because the image is loading asynchronously. You need to get the drawable when it is finished loading into the view:

   Target target = new Target() {
          @Override
          public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
              imageView.setImageBitmap(bitmap);
              Drawable image = imageView.getDrawable();
          }

          @Override
          public void onBitmapFailed() {
          }
   }

   Picasso.with(this).load("url").into(target);

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