java - ImageView 的 URL 图像

Question

    ImageView imgview = (ImageView)findViewById(R.id.image);
    Drawable drawable = LoadImage("http://192.168.172.1/myproject/images/st1.jpg");
    imgview.setImageDrawable(drawable);
    ...
    ...
public Drawable LoadImage(String url)
{

    try
    {
        InputStream is = (InputStream) new URL(url).getContent();
        Drawable b = Drawable.createFromStream(is, url);
    return b;
    }catch(Exception e){
        System.out.println(e);
        return null;
    }

}

.java

     ...
     ...
     <ImageView 
        android:id="@+id/image"
        android:layout_height="wrap_content" 
        android:layout_width="wrap_content"/>

.xml

从 wamp 服务器获取图像作为 Url 并将其显示到我的 xml 但图像未显示

Answer 1

我使用以下代码从url获取image并将其添加到ImageView:

ImageRequest imgRequest = new ImageRequest(url,
            new Response.Listener<Bitmap>() {
                @Override
                public void onResponse(Bitmap response) {
                    mImageView.setImageBitmap(response);
                    Toast.makeText(MainActivity.this, "Succes", Toast.LENGTH_SHORT).show();
                }
            }, 0, 0, ImageView.ScaleType.FIT_XY, Bitmap.Config.ARGB_8888, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            Toast.makeText(MainActivity.this, error.getMessage(), Toast.LENGTH_SHORT).show();
            mImageView.setBackgroundColor(Color.parseColor("#ff0000"));
            error.printStackTrace();
        }
    });

    Volley.newRequestQueue(this).add(imgRequest);

您需要做的就是使用 google developers 制作的 Volley Library(可信来源)。更多信息 here

希望对您有所帮助!