问题描述

可能重复:
是否可以使用 BitmapFactory.decodeFile 方法从 http 位置解码图像?

我在将 url 图像设置为图像视图时遇到问题.我尝试了以下方法

i have a problem in set url image to image view. i tried below methods

方法一:

Bitmap bimage=  getBitmapFromURL(bannerpath);
image.setImageBitmap(bimage);

 public static Bitmap getBitmapFromURL(String src) {
        try {
            Log.e("src",src);
            URL url = new URL(src);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setDoInput(true);
            connection.connect();
            InputStream input = connection.getInputStream();
            Bitmap myBitmap = BitmapFactory.decodeStream(input);
            Log.e("Bitmap","returned");
            return myBitmap;
        } catch (IOException e) {
            e.printStackTrace();
            Log.e("Exception",e.getMessage());
            return null;
        }
    }

方法二:

    Drawable drawable = LoadImageFromWebOperations(bannerpath);
    image.setImageDrawable(drawable);

     private Drawable LoadImageFromWebOperations(String url)
    {
         try
         {
             InputStream is = (InputStream) new URL(url).getContent();
             Drawable d = Drawable.createFromStream(is, "src name");
             return d;
         }catch (Exception e) {
             System.out.println("Exc="+e);
             return null;
         }
     }

我尝试了以上两种方法，但都不起作用.两者都显示 DEBUG/skia(266): --- decoder->decode returned false .我使用了有效的演示 url 图像路径.但这条路行不通.所以请告诉我出了什么问题，我会怎么做

i tried above two methods but are not working . both are showing DEBUG/skia(266): --- decoder->decode returned false . i used demo url image paths that is working. but this path is not working .so please tell me what is the wrong and what i will do

提前谢谢你.

最好的问候.

推荐答案

刚刚在我的应用程序中测试了您的方法 1"，它工作得很好.

Just Tested your "Method 1" in my app and it works just fine.

您可能在 AndroidManifest.xml 文件中忘记了这一行:

You might have forgotten this line in your AndroidManifest.xml file:

<uses-permission android:name="android.permission.INTERNET" />

这篇关于将 url 图像设置为图像视图的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！