从URL加载大位图并调整其大小 [英] Load large bitmap from url and resize it

问题描述

我想从URL加载巨大的图像，并显示我的设备上。我读这后这样做。

I want load huge image from url and show on my device. I read this post for doing this.

在这个例子中，他们使用本地绘制，但是我想从服务器获取图像。

In that example they use native drawable but I want get image from server.

我用这code

 private void getBitmap(ImageView imageView,final String url){

        mBitmapOptions = new BitmapFactory.Options();
        mBitmapOptions.inJustDecodeBounds = true;
        URL mUrl = null;
        InputStream is= null;
        try {
            mUrl = new URL(url);
            is = mUrl.openStream();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
//        BitmapFactory.decodeStream(is,null,mBitmapOptions);

        mCurrentBitmap = Bitmap.createBitmap(mBitmapOptions.outWidth,
                mBitmapOptions.outHeight, Bitmap.Config.ARGB_8888);
        mBitmapOptions.inJustDecodeBounds = false;
        mBitmapOptions.inBitmap = mCurrentBitmap;
        mBitmapOptions.inSampleSize = 1;
        BitmapFactory.decodeStream(is,null,mBitmapOptions);
        imageView.setImageBitmap(mCurrentBitmap);
//        Bitmap croppedBitmap=Bitmap.createBitmap(Bitmap.createBitmap(mCurrentBitmap, 0, mCurrentBitmap.getHeight()/2, mCurrentBitmap.getWidth(), mCurrentBitmap.getHeight()/2));
//        imageView.setImageBitmap(croppedBitmap);
    }

我想从这里得到的网址图像并调整其大小，但我有一个例外。

I want here get image from url and resize it but I have an exception.

java.lang.IllegalArgumentException: width and height must be > 0

我做错了的是什么？或者你可以建议我更好的答案？

What I did wrong here? or could you suggest me better answer?

推荐答案

我会用毕加索，那么你想要达到的目标很简单，只要这样的：

I would use Picasso, then what you want to achieve is as simple as this:

Picasso.with（上下文）
  .load（URL）
  .resize（50，50）
  .into（ImageView的）

Picasso.with(context) .load(url) .resize(50, 50) .into(imageView)

http://square.github.io/picasso/

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