Question

我正在研究短消息应用程序。我已经为其开发了一个原型，该原型使用已定义的数据。我想从JSON获取此数据。我怎样才能做到这一点？我是Android编程的初学者。如果可能，请提供我可以用来获取所需数据的代码/语法。

我的适配器代码：

public class VerticlePagerAdapter extends PagerAdapter {

    Context context;
    LayoutInflater inflater;

    // list of images
    public int[] lst_images = {
            R.drawable.image_1,
            R.drawable.image_2,
            R.drawable.image_3,
            R.drawable.image_4
    };
    // list of titles
    public String[] lst_title = {
            "COSMONAUT",
            "SATELITE",
            "GALAXY",
            "ROCKET"
    }   ;
    // list of descriptions
    public String[] lst_description = {
            "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,",
            "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,",
            "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,",
            "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,"
    };
    // list of background colors
    public int[]  lst_backgroundcolor = {
            Color.rgb(55,55,55),
            Color.rgb(239,85,85),
            Color.rgb(110,49,89),
            Color.rgb(1,188,212)
    };


    public VerticlePagerAdapter(Context context) {
        this.context = context;
    }

    @Override
    public int getCount() {
        return lst_title.length;
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return (view==(LinearLayout)object);
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        inflater = (LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE);
        View view = inflater.inflate(R.layout.content_main,container,false);
        LinearLayout layoutslide = (LinearLayout) view.findViewById(R.id.slidelinearlayout);
        ImageView imgslide = (ImageView)  view.findViewById(R.id.imageView);
        TextView txttitle= (TextView) view.findViewById(R.id.textView_link);
        TextView description = (TextView) view.findViewById(R.id.textView);
        layoutslide.setBackgroundColor(lst_backgroundcolor[position]);
        imgslide.setImageResource(lst_images[position]);
        txttitle.setText(lst_title[position]);
        description.setText(lst_description[position]);
        container.addView(view);
        return view;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        container.removeView((LinearLayout)object);
    }
}

Answer 1

首先，您需要使用api响应，然后可以使用 https://www.mockapi.io 或https://www.getpostman.com/或任何其他api提供程序来生成您的响应第二，您可以使用改造库来处理网络连接并获得响应 https://square.github.io/retrofit/

如何从JSON响应在线获取数据

1 个答案: