Question

我想在此页面上显示横幅：http://abcsur.info/clasificados/inmuebles/casas

这是我获取它的代码

Document document = Jsoup.connect(url).get();
Elements img = document.select("div.col-sm-12.A4DZP4C3.well.leaderboard-A4DZP4C3.genericContainer.js-A4DZP4C3.js-leaderboard-A4DZP4C3");
            // Locate the src attribute
            String imgSrc = img.attr("src");
            // Download image from URL
            InputStream input = new java.net.URL(imgSrc).openStream();
            // Decode Bitmap
            bitmap = BitmapFactory.decodeStream(input);

并在ImageView中显示它

 ImageView logoimg = (ImageView) findViewById(R.id.publicidad);
        logoimg.setImageBitmap(bitmap);

不要工作。

java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setImageBitmap(android.graphics.Bitmap)' on a null object reference
        at info.blacktrail.abcsur.InmueblesFolder.Casas$Title.onPostExecute(Casas.java:135)
        at info.blacktrail.abcsur.InmueblesFolder.Casas$Title.onPostExecute(Casas.java:76)

Answer 1

ImageView logoimg = (ImageView) findViewById(R.id.publicidad);
logoimg.setImageBitmap(bitmap);

在上面的代码logoimg中为空。

从Web获取图像并使用jsoup在ImageView中显示它

1 个答案: