Question

用户最近帮我用JSoup获取图像。我用Picasso创建了一个ViewPager并创建了一个Test String []，它正在工作。

现在我想把那些在JSoup中的图片拉进毕加索。

有人可以帮忙吗？

public class MainActivity extends AppCompatActivity {
    String url = "http://www.readmangaonline.org/manga/one-piece/902/1";
    private String[] imageUrls = new String[]{
        "http://i999.mangapanda.com/one-piece/902/one-piece-10510603.jpg",
        "http://i999.mangapanda.com/one-piece/902/one-piece-10510603.jpg"
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        new ImageScrapAsyncTask().execute(url);

        ViewPager viewPager = findViewById(R.id.viewPager);
        ViewPagerAdapter adapter = new ViewPagerAdapter(this, imageUrls);
        viewPager.setAdapter(adapter);

    }
}

class ImageScrapAsyncTask extends AsyncTask<String, Void, Document> {

    @Override
    protected Document doInBackground(String... urls) {
        try {
            return Jsoup.connect(urls[0]).get();
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }

    @Override
    protected void onPostExecute(Document document) {
        if (document != null) {
            Elements imgElements = document.select("img");
            List<String> images = new ArrayList<>();

            for (Element element : imgElements) {
                String image = element.attr("data-src");
                Log.d("IMAGE_URL", image);
                images.add(image);
            }
        }
    }


}

适配器：https://hastebin.com/vibecilugi.scala

Answer 1

在onPostExecute中设置适配器（在数据可用之后。）

@Override
    protected void onPostExecute(Document document) {
        if (document != null) {
            Elements imgElements = document.select("img");
            List<String> images = new ArrayList<>();

            for (Element element : imgElements) {
                String image = element.attr("data-src");
                Log.d("IMAGE_URL", image);
                if(image!=null && !image.equals("")){
                    images.add(image);
                }
            }

            String[] imgArray = images.toArray(new String[images.size()]);
            ViewPagerAdapter adapter = new ViewPagerAdapter(MainActivity.this, imgArray);
            viewPager.setAdapter(adapter);
        }
    }

注意：使viewPager成为全局。

将JSoup图像传递给Picasso

1 个答案: