如何解决如何使用 API 增加 Android 应用程序中的访问者计数
我正在制作一个关于故事的应用程序，它将在 API (getstories.PHP) 的帮助下在列表视图中显示故事列表。我正在使用 volley 库和回收站视图。我还想实现访问者或视图计数，这意味着每当用户单击特定列表项时，它就会将视图增加 1。对于访问者增量计数，我有一个额外的 API，即 (incrementviews.PHP)。 我已经在代码中实现了它，如果我向下滚动，它会将整个列表项视图计数更新为 1。但我希望每当用户单击特定列表项时，该特定列表项应将视图增加 1，而不是整个列表项。任何人都可以帮我修改它的位置吗？
代码是JAVA
这是我的代码：- 适配器.class
public class StoriesAdapter extends RecyclerView.Adapter<StoriesAdapter.ViewHolder> {
private static final String HP = "http://......./incrementviews.PHP?story_id=";
private List<StoriesModel> storiesModels;
private Context context;
public StoriesAdapter(List<StoriesModel> storiesModels,Context context) {
this.storiesModels = storiesModels;
this.context = context;
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent,int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.row,parent,false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull ViewHolder holder,int position) {
StoriesModel storiesModel = storiesModels.get(position);
holder.header.setText(storiesModel.getTitle());
holder.views.setText(storiesModel.getViews());
holder.story.setText(storiesModel.getStory());
//getViewCount method initialization
final String story_id = storiesModel.getStoryId();
getViewCountData(story_id,holder);
holder.relativeLayout.setonClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
Intent intent = new Intent(context,DetailActivity.class);
intent.putExtra("header",storiesModel.getTitle());
intent.putExtra("views",storiesModel.getViews());
intent.putExtra("story",storiesModel.getStory());
context.startActivity(intent);
}
});
}
//Get view count Method
private void getViewCountData(final String story_id,ViewHolder holder){
StringRequest stringRequest = new StringRequest(Request.Method.POST,HP + story_id,new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject jsonObject = new JSONObject(response);
JSONArray array = jsonObject.getJSONArray("data");
for (int i = 0; i < array.length(); i++) {
JSONObject o = array.getJSONObject(i);
String textCount = o.getString("views");
holder.views.setText(textCount);
}
} catch (JSONException e) {
e.printstacktrace();
}
}
},new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
}
}){
@Override
protected Map<String,String> getParams(){
Map<String,String>parms = new HashMap<String,String>();
parms.put("story_id",story_id);
return parms;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(context);
requestQueue.add(stringRequest);
}
@Override
public int getItemCount() {
return storiesModels.size();
}
public class ViewHolder extends RecyclerView.ViewHolder{
public TextView header;
public TextView views;
public TextView story;
//public LinearLayout linearLayout; //old of rowitem.xml
public RelativeLayout relativeLayout;
public ViewHolder(@NonNull View itemView) {
super(itemView);
header = (TextView) itemView.findViewById(R.id.header);
views = (TextView) itemView.findViewById(R.id.views);
story = (TextView) itemView.findViewById(R.id.story);
//linearLayout = (LinearLayout) itemView.findViewById(R.id.linear_layout);//old of rowitem.xml
relativeLayout = (RelativeLayout) itemView.findViewById(R.id.Newlinear_layout);
}
}
}
这是 MainActivity.class:-
public class StoriesFragment extends Fragment {
private static final String URL_DATA = "https://......./getstories.PHP";
private RecyclerView recyclerView;
private RecyclerView.Adapter adapter;
List<StoriesModel> storiesModels;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater,@Nullable ViewGroup container,@Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_stories,container,false);
recyclerView = view.findViewById(R.id.recycler);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new linearlayoutmanager(getContext()));
storiesModels = new ArrayList<>();
loadRecyclerViewData();
return view;
}
private void loadRecyclerViewData(){
ProgressDialog progressDialog = new ProgressDialog(getContext());
progressDialog.setMessage("Please wait...");
progressDialog.show();
//fetch the data from the server
StringRequest stringRequest = new StringRequest(Request.Method.GET,URL_DATA,new Response.Listener<String>() {
@Override
public void onResponse(String response) {
progressDialog.dismiss();
try {
JSONObject jsonObject = new JSONObject(response);
JSONArray array = jsonObject.getJSONArray("data");
for(int i =0; i<array.length(); i++){
JSONObject o = array.getJSONObject(i);
StoriesModel item = new StoriesModel (
o.getString("story_id"),o.getString("title"),o.getString("views"),o.getString("story")
);
storiesModels.add(item);
}
adapter = new StoriesAdapter(storiesModels,getContext());
recyclerView.setAdapter(adapter);
} catch (JSONException e) {
e.printstacktrace();
}
}
},new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
progressDialog.dismiss();
// Toast.makeText(getContext(),VolleyError.getMessage())
Toast.makeText(getContext(),(CharSequence) new VolleyError(),Toast.LENGTH_LONG).show();
}
});
RequestQueue requestQueue = Volley.newRequestQueue(getContext());
requestQueue.add(stringRequest);
}
}
解决方法
我找到了您会满意的解决方案，并且从我的角度来看它运行良好。所以这是代码：- 仅在 Adapter 类中更改：-
public class StoriesAdapter extends RecyclerView.Adapter<StoriesAdapter.ViewHolder> {
private static final String HP = "http://......./incrementviews.php?story_id=";
private List<StoriesModel> storiesModels;
private Context context;
public StoriesAdapter(List<StoriesModel> storiesModels,Context context) {
this.storiesModels = storiesModels;
this.context = context;
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent,int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.row,parent,false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull ViewHolder holder,int position) {
StoriesModel storiesModel = storiesModels.get(position);
holder.header.setText(storiesModel.getTitle());
holder.views.setText(storiesModel.getViews());
holder.story.setText(storiesModel.getStory());
//getViewCount method initialization
final String story_id = storiesModel.getStoryId();
holder.relativeLayout.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
Intent intent = new Intent(context,DetailActivity.class);
intent.putExtra("header",storiesModel.getTitle());
intent.putExtra("views",storiesModel.getViews());
intent.putExtra("story",storiesModel.getStory());
context.startActivity(intent);
getViewCountData(story_id,holder);
}
});
}
//Get view count Method
private void getViewCountData(final String story_id,ViewHolder holder){
StringRequest stringRequest = new StringRequest(Request.Method.POST,HP,new Response.Listener<String>() {
@Override
public void onResponse(String response) {
}
}
},new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
}
}){
@Override
protected Map<String,String> getParams(){
Map<String,String>parms = new HashMap<String,String>();
parms.put("story_id",story_id);
return parms;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(context);
requestQueue.add(stringRequest);
}
@Override
public int getItemCount() {
return storiesModels.size();
}
public class ViewHolder extends RecyclerView.ViewHolder{
public TextView header;
public TextView views;
public TextView story;
//public LinearLayout linearLayout; //old of rowitem.xml
public RelativeLayout relativeLayout;
public ViewHolder(@NonNull View itemView) {
super(itemView);
header = (TextView) itemView.findViewById(R.id.header);
views = (TextView) itemView.findViewById(R.id.views);
story = (TextView) itemView.findViewById(R.id.story);
//linearLayout = (LinearLayout) itemView.findViewById(R.id.linear_layout);//old of rowitem.xml
relativeLayout = (RelativeLayout) itemView.findViewById(R.id.Newlinear_layout);
}
}
}
,如果您在 DetailActivity 中展示故事，那么您可以简单地在 DetailActivity Activity 中实现增加观众计数 api。一旦用户到达此活动并在屏幕上停留几秒钟，您就可以简单地调用增量视图计数 api。
所以您需要做的是在 DetailActivity 的 onCreate 内创建并发送您的截击请求。
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