Klick auf Textview auf Listenansicht auf Fragment

Question

Klick auf Textview auf Listenansicht auf Fragment

Textview Auf category_row.xml textViewCategoryName

Onclick SetText diese textViewCategoryName ok!

CategoriesFragment.java

package com.example; 

import android.os.AsyncTask; 
import android.os.Bundle; 
import android.support.annotation.Nullable; 
import android.support.design.widget.Snackbar; 
import android.support.v4.app.Fragment; 
import android.support.v4.widget.ContentLoadingProgressBar; 
import android.util.Log; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.AdapterView; 
import android.widget.ListView; 
import android.widget.TextView; 

import com.example.adapter.CategoryArrayAdapter; 
import com.example.model.CategoryDataModel; 
import com.example.parser.JSONParser; 
import com.example.utils.Keys; 

import org.json.JSONArray; 
import org.json.JSONException; 
import org.json.JSONObject; 

import java.util.ArrayList; 

public class CategoriesFragment extends Fragment { 

    private ListView listView; 
    private ArrayList<CategoryDataModel> list; 
    private CategoryArrayAdapter adapter; 
    private TextView categoryCurrent; 

    public CategoriesFragment() { 
     // Required empty public constructor 
    } 

    @Override 
    public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 

     // Inflate the layout for this fragment 
     View rootView = inflater.inflate(R.layout.fragment_categories, null); 

     return rootView; 
    } 

    @Override 
    public void onActivityCreated(@Nullable Bundle savedInstanceState) { 
     super.onActivityCreated(savedInstanceState); 
     /** 
     * Array List for Binding Data from JSON to this List 
     */ 
     list = new ArrayList<>(); 

     adapter = new CategoryArrayAdapter(getActivity(), list); 

     /** 
     * Getting List and Setting List Adapter 
     */ 
     listView = (ListView) getActivity().findViewById(R.id.listView); 
     listView.setAdapter(adapter); 
     listView.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
      @Override 
      public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 
       Snackbar.make(getActivity().findViewById(R.id.parentLayout), list.get(position).getCategoryName(), Snackbar.LENGTH_LONG).show(); 
      } 
     }); 

     /** 
     * Check internet connection 
     */ 
     //if (InternetConnection.checkConnection(getApplicationContext())) { 
     new GetDataCategories().execute(); 
     //} else { 
     //Snackbar.make(getActivity().findViewById(R.id.parentLayout), "اتصال به اینترنت برقرار نیست", Snackbar.LENGTH_LONG).show(); 
     //} 

    } 

    /** 
    * Creating Get Data Task for Getting Data From Web 
    */ 
    class GetDataCategories extends AsyncTask<Void, Void, Void> { 

     ContentLoadingProgressBar progressBar; 

     @Override 
     protected void onPreExecute() { 
      super.onPreExecute(); 

      /** 
      * Progress Bar for User Interaction 
      */ 
      progressBar = (ContentLoadingProgressBar) getActivity().findViewById(R.id.progress); 
      progressBar.show(); 
     } 

     @Nullable 
     @Override 
     protected Void doInBackground(Void... params) { 

      /** 
      * Getting JSON Object from Web Using okHttp 
      */ 
      JSONObject jsonObject = JSONParser.getDataFromWeb("http://example.com/api-service/v1/platform_categories/"); 

      try { 
       /** 
       * Check Whether Its NULL??? 
       */ 
       if (jsonObject != null) { 
        /** 
        * Check Length... 
        */ 
        if(jsonObject.length() > 0) { 
         /** 
         * Getting Array named "Categories" From MAIN Json Object 
         */ 
         JSONArray array = jsonObject.getJSONArray(Keys.KEY_CATEGORIES); 

         /** 
         * Check Length of Array... 
         */ 
         int lenArray = array.length(); 
         if(lenArray > 0) { 
          for(int jIndex = 0; jIndex < lenArray; jIndex++) { 

           /** 
           * Creating Every time New Object 
           * and 
           * Adding into List 
           */ 
           CategoryDataModel model = new CategoryDataModel(); 

           /** 
           * Getting Inner Object from contacts array... 
           * and 
           * From that We will get Name of that Contact 
           * 
           */ 
           JSONObject innerObject = array.getJSONObject(jIndex); 

           String category_name = innerObject.getString(Keys.KEY_CATEGORY_NAME); 
           String category_link = innerObject.getString(Keys.KEY_CATEGORY_LINK); 


           /** 
           * Getting Object from Object "other" 
           */ 
           //JSONObject otherObject = innerObject.getJSONObject(Keys.KEY_NAME); 
           //String other = otherObject.getString(Keys.KEY_NAME_SUB); 


           model.setCategoryName(category_name); 
           model.setCategoryLink(category_link); 

           /** 
           * Adding data in List... 
           */ 
           list.add(model); 
          } 
         } 
        } 
       } else { 

       } 
      } catch (JSONException je) { 
       Log.i(JSONParser.TAG, "" + je.getLocalizedMessage()); 
      } 
      return null; 
     } 

     @Override 
     protected void onPostExecute(Void aVoid) { 
      super.onPostExecute(aVoid); 

      /** 
      * Progress Bar for User Interaction 
      */ 
      progressBar.hide(); 

      /** 
      * Checking if List size if more than zero then 
      * Update ListView 
      */ 
      if(list.size() > 0) { 
       adapter.notifyDataSetChanged(); 
      } else { 
       Snackbar.make(getActivity().findViewById(R.id.parentLayout), "مشکلی در اتصال به سرورهای سخنک رخ داده است!", Snackbar.LENGTH_LONG).show(); 
      } 
     } 
    } 

} 

CategoryArrayAdapter.java

package com.example.adapter; 

import android.content.Context; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.ArrayAdapter; 
import android.widget.RelativeLayout; 
import android.widget.TextView; 

import com.example.R; 
import com.example.model.CategoryDataModel; 

import java.util.List; 

public class CategoryArrayAdapter extends ArrayAdapter<CategoryDataModel> { 

    List<CategoryDataModel> modelList; 
    Context context; 
    private LayoutInflater mInflater; 

    // Constructors 
    public CategoryArrayAdapter(Context context, List<CategoryDataModel> objects) { 
     super(context, 0, objects); 
     this.context = context; 
     this.mInflater = LayoutInflater.from(context); 
     modelList = objects; 
    } 

    @Override 
    public CategoryDataModel getItem(int position) { 
     return modelList.get(position); 
    } 

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     final ViewHolder vh; 
     if (convertView == null) { 
      View view = mInflater.inflate(R.layout.category_row, parent, false); 
      vh = ViewHolder.create((RelativeLayout) view); 
      view.setTag(vh); 
     } else { 
      vh = (ViewHolder) convertView.getTag(); 
     } 

     CategoryDataModel item = getItem(position); 

     vh.textViewCategoryName.setText(item.getCategoryName()); 

     return vh.rootView; 
    } 

    private static class ViewHolder { 
     public final RelativeLayout rootView; 
     public final TextView textViewCategoryName; 

     private ViewHolder(RelativeLayout rootView, TextView textViewCategoryName) { 
      this.rootView = rootView; 
      this.textViewCategoryName = textViewCategoryName; 
     } 

     public static ViewHolder create(RelativeLayout rootView) { 
      TextView textViewCategoryName = (TextView) rootView.findViewById(R.id.textViewCategoryName); 
      return new ViewHolder(rootView, textViewCategoryName); 
     } 
    } 
} 

fragment_categories.xml

<?xml version="1.0" encoding="utf-8"?> 

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:id="@+id/parentLayout" 
    android:layout_height="match_parent" 
    android:fitsSystemWindows="true" 
    tools:context=".MainActivity"> 

    <android.support.v4.widget.ContentLoadingProgressBar 
     android:id="@+id/progress" 
     style="?android:attr/progressBarStyleLarge" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_gravity="center_horizontal" 
     android:visibility="visible" /> 

    <ListView app:layout_behavior="@string/appbar_scrolling_view_behavior" 
     android:id="@+id/listView" 
     android:layout_width="fill_parent" 
     android:layout_height="match_parent" /> 

</android.support.design.widget.CoordinatorLayout> 

category_row.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:orientation="vertical"> 

    <LinearLayout 
     android:layout_width="match_parent" 
     android:orientation="vertical" 
     android:layout_centerVertical="true" 
     android:layout_height="wrap_content" 
     android:layout_toLeftOf="@+id/imageViewProfilePhoto"> 

     <TextView 
      android:id="@+id/textViewCategoryName" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_margin="5dp" 
      android:textAppearance="?android:textAppearanceSmall" 
      android:textIsSelectable="true" 
      tools:text="Quote Content" /> 


     <LinearLayout 
      android:orientation="horizontal" 
      android:layout_width="wrap_content" 
      android:layout_height="match_parent" 
      android:layout_gravity="right" 
      android:layout_alignParentRight="true" 
      android:layout_alignParentTop="true" 
      android:layout_alignParentLeft="true" 
      android:layout_alignParentStart="true"> 

     </LinearLayout> 

    </LinearLayout> 

</RelativeLayout> 

Answer 1

Sie müssen eine onClickListener an Ihre TextView in Ihrer ViewHolder setzen.

private static class ViewHolder { 
    public final RelativeLayout rootView; 
    public final TextView textViewCategoryName; 

    private ViewHolder(RelativeLayout rootView, TextView textViewCategoryName) { 
     this.rootView = rootView; 
     this.textViewCategoryName = textViewCategoryName; 
    } 

    public static ViewHolder create(RelativeLayout rootView) { 
     TextView textViewCategoryName = (TextView) rootView.findViewById(R.id.textViewCategoryName); 
     textViewCategoryName.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       // Do whatever you want 
      } 
     }); 
     return new ViewHolder(rootView, textViewCategoryName); 
    } 
}