我试图从firebase数据库中检索数据,并在每8项中放入广告。我已经创建了适配器“posts_adapter”,但我不知道如何检索数据以在回收站视图中显示它们。请问任何人都可以帮助我,告诉我如何使用admob从firebase检索数据到回收者视图。如何使用适配器检索Firebase列表
这里是我的适配器:
public class posts_adapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private static final int Posts_View = 0;
private static final int AD_MOB_View = 1;
private final List<retrieve_data> mPosts_List;
public posts_adapter(List<retrieve_data> mPosts_List) {
this.mPosts_List = mPosts_List;}
@Override public int getItemCount() {return mPosts_List.size();}
@Override public int getItemViewType(int position) {return (position % 8 == 0) ? AD_MOB_View : Posts_View;}
@Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
switch (viewType) {
case Posts_View:
View posts_view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.posts_handler_view, viewGroup, false);
return new Posts_View_Holder(posts_view);
case AD_MOB_View:
default:View ad_view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.ad_handler_view, viewGroup, false);
return new NativeExpressAdViewHolder(ad_view);}
}
private class Posts_View_Holder extends RecyclerView.ViewHolder {
Posts_View_Holder(View view) {
super(view);
//POSTS VIEW
}
}
private class NativeExpressAdViewHolder extends RecyclerView.ViewHolder {
NativeExpressAdViewHolder(View view) {
super(view);
//AD VIEW
}
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
int viewType = getItemViewType(position);
switch (viewType) {
case Posts_View:
//Retrieve data for posts
break;
case AD_MOB_View:
//Retrieve data from ads
default:
}
}
}
这是我的JSON:
},
"posts" : {
"-Ks7yUeMgNpPM5P8nF_7" : {
"describe" : "Hello world",
"location" : "USA, NY",
"latlng" : "0,0",
"photo" : "null",
"time" : 1503389171,
"uid" : "8J1lF6awbAVWm8ruJEKUNWcuG512"
}
},
,这里是我的课:
mMain_RecyclerView = (RecyclerView) v.findViewById(R.id.Main_RecyclerView);
mMain_RecyclerView.setHasFixedSize(true);
mMain_RecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
请帮助我如何使用回收器视图中的适配器与admob每8个意见。
有你试图寻找在这个例子中 - https://github.com/googleads/googleads-mobile-android-examples/tree/master/advanced/NativeExpressRecyclerViewExample –
诅咒,但我不明白很会...所以我只需要一个简单的方法不先进..如果可能的话请帮助我.. – 7uthaifah