Question

我需要在垂直寻呼机的页面之间显示广告。例如，新闻应用程序（如短裤）。任何方式都可以做到。

用于新闻页面的数据是标题，内容和日期，为此我将在jsonarray中获取多个新闻。我的要求是在寻呼机适配器内添加其他页面（广告页面）。例如：滑动5次新闻后。我应该获得与新闻页面不同的广告页面

Answer 1

首先，您应该使用包含广告数据的json数组

例如：不做广告的json数组

{ “ s”：是的， “ d”：[ { “ id”：“ 203e63d7-3672-4fb7-a899-3ebd281a0e4c”， “ title”：“标题1”， “ description”：“ Description” }， { “ id”：“ 203e63d7-3672-4fb7-a899-3ebd281a0e4c”， “ title”：“标题1”， “ description”：“ Description” }， { “ id”：“ 203e63d7-3672-4fb7-a899-3ebd281a0e4c”， “ title”：“标题1”， “ description”：“ Description” }， { “ id”：“ 203e63d7-3672-4fb7-a899-3ebd281a0e4c”， “ title”：“标题1”， “ description”：“ Description” }， { “ id”：“ 203e63d7-3672-4fb7-a899-3ebd281a0e4c”， “ title”：“标题1”， “ description”：“ Description” } ] }

现在使用以下参数创建自定义类：标题，类型，描述，advertise_title和advertise_url

List<CustomObj> list=new ArrayList<>();
for(int i=0;i<jsonArray.size,i++){
int j=i;
j++;
if(j%5==0){
list.add(new CustomObj(jsonArray.get(i).getId(),jsonArray.get(i).getTitle(),jsonArray.get(i).getDescription(),1,"Advertise Title","URL")
}else{
list.add(new CustomObj(jsonArray.get(i).getId(),jsonArray.get(i).getTitle,jsonArray.get(i).getDescription,0,"","")
}

}

带有广告列表的json数组

{
  "s": true,
  "d": [
    {
      "id": "203e63d7-3672-4fb7-a899-3ebd281a0e4c",
      "title": "Title 1",
      "type": 0,
      "description": "Description",
      "advertise_title": "",
      "advertise_img_url": ""
    },
    {
      "id": "203e63d7-3672-4fb7-a899-3ebd281a0e4c",
      "title": "Title 1",
      "type": 0,
      "description": "Description",
      "advertise_title": "",
      "advertise_img_url": ""
    },
    {
      "id": "203e63d7-3672-4fb7-a899-3ebd281a0e4c",
      "title": "Title 1",
      "type": 0,
      "description": "Description",
      "advertise_title": "Description",
      "advertise_img_url": "https://www.pexels.com/photo/nature-red-love-romantic-67636/a.jpg"
    },
    {
      "id": "203e63d7-3672-4fb7-a899-3ebd281a0e4c",
      "title": "Title 1",
      "type": 0,
      "description": "Description",
      "advertise_title": "Description",
      "advertise_img_url": "https://www.pexels.com/photo/nature-red-love-romantic-67636/a.jpg"
    },
    {
      "id": "203e63d7-3672-4fb7-a899-3ebd281a0e4c",
      "title": "Title 1",
      "type": 1,
      "description": "Description",
      "advertise_title": "Description",
      "advertise_img_url": "https://www.pexels.com/photo/nature-red-love-romantic-67636/a.jpg"
    },
    {
      "id": "203e63d7-3672-4fb7-a899-3ebd281a0e4c",
      "title": "Title 1",
      "type": 0,
      "description": "Description",
      "advertise_title": "",
      "advertise_img_url": ""
    },
    {
      "id": "203e63d7-3672-4fb7-a899-3ebd281a0e4c",
      "title": "Title 1",
      "type": 0,
      "description": "Description",
      "advertise_title": "",
      "advertise_img_url": ""
    },
    {
      "id": "203e63d7-3672-4fb7-a899-3ebd281a0e4c",
      "title": "Title 1",
      "type": 0,
      "description": "Description",
      "advertise_title": "",
      "advertise_img_url": ""
    },
    {
      "id": "203e63d7-3672-4fb7-a899-3ebd281a0e4c",
      "title": "Title 1",
      "type": 0,
      "description": "Description",
      "advertise_title": "",
      "advertise_img_url": ""
    }
  ]
}

在ViewPagerAdapter中，

@Override
public Object instantiateItem(ViewGroup container, int position) {
 View itemView;
 if (mList.get(position).getType() == 0) {
  //for simple item 
  itemView = mLayoutInflater.inflate(R.layout.pager_news, container, false);
  ImageView imageView = (ImageView) itemView.findViewById(R.id.imageView);
  TextView text = (TextView) itemView.findViewById(R.id.text_id);
  imageView.setImageResource(mResources[position].getUrl());
  text.setText(mResources[position].getTitle());
  container.addView(itemView);
 } else {
  //for adavertise item
  itemView = mLayoutInflater.inflate(R.layout.pager_advertise, container, false);
  ImageView imageView = (ImageView) itemView.findViewById(R.id.imageView);
  imageView.setImageResource(mResources[position]);
  container.addView(itemView);
 }
 return itemView;
}

Answer 2

您可以只创建两种类型的片段，一种是您的主要片段，例如新闻片段，另一个是将显示广告的广告片段。

然后根据您的逻辑将这些片段添加到列表中，然后再将其传递给pageradapter。

    private ArrayList<Fragment> fragmentList = new ArrayList<>();
    fragmentList.add(NewsFragment.newInstance());
    fragmentList.add(NewsFragment.newInstance());
    fragmentList.add(NewsFragment.newInstance());
    fragmentList.add(NewsFragment.newInstance());
    fragmentList.add(NewsFragment.newInstance());
    fragmentList.add(AdFragment.newInstance());

    NewsPagerAdapter newsPagerdapter = new NewsPagerAdapter(getSupportFragmentManager(), fragmentList);
    viewPager.setAdapter(newsPagerdapter);

您的适配器将像这样-

public class NewsPagerAdapter extends FragmentStatePagerAdapter {
private ArrayList<Fragment> fragmentList = new ArrayList<>();


public NewsPagerAdapter(FragmentManager fm, ArrayList<Fragment> fragmentList) {
    super(fm);
    this.fragmentList=fragmentList;

}


@Override
public Fragment getItem(int position) {
    return fragmentList.get(position);
}

@Override
public int getCount() {
    return fragmentList.size();
}
}

Android垂直寻呼机适配器（在寻呼机适配器之间添加不同的页面）

2 个答案: