Adaptateur Android avec GridView en Fragment

Question

J'ai créé une table d'harmonie avec un adaptateur GridView, mais j'ai deux problèmes.

1. Il dit

"CustomGridAdapter ne peut pas être appliqué"

myGridView.setAdapter(new CustomGridAdapter(getActivity(), items));

2. Il dit

"ne peut pas résoudre la méthode itemClicked (int)"

   ` @Override 
       public void onClick(View v) { 
        context.itemClicked(position); 
       } 
      });` 

Voici mon fichier mFragment.java:

package com.aaron.waller.girdlayoutmanagertest.mFragments; 

import android.content.Context; 
import android.media.MediaPlayer; 
import android.os.Bundle; 
import android.support.annotation.Nullable; 
import android.support.v4.app.Fragment; 
import android.support.v7.widget.LinearLayoutCompat; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.BaseAdapter; 
import android.widget.Button; 
import android.widget.GridView; 

import com.aaron.waller.girdlayoutmanagertest.MainActivity; 
import com.aaron.waller.girdlayoutmanagertest.R; 

public class erstesFragment extends Fragment { 

    GridView gridView; 
    MediaPlayer mp; 
    public String[] items ={"Button1","Button2","Button3","Button4","Button5","Button6"}; 

    @Nullable 
    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
     View rootView=inflater.inflate(R.layout.erstes_fragment,container,false); 


     gridView= (GridView)rootView.findViewById(R.id.gridView1); 
     gridView.setAdapter(new CustomGridAdapter(getActivity(), items)); 

     return rootView; 
    } 
    public void itemClicked(int position) { 

     if(position == 0){ 
      mp = MediaPlayer.create(getActivity(), R.raw.sound1); 
      mp.start(); 
     }else if(position == 1){ 
      mp = MediaPlayer.create(getActivity(), R.raw.sound2); 
      mp.start(); 

     }else if(position == 2) { 
      mp = MediaPlayer.create(getActivity(), R.raw.sound3); 
      mp.start(); 
     } 
     else if(position == 3) { 
      mp = MediaPlayer.create(getActivity(), R.raw.sound4); 
      mp.start(); 
     } 
     else if(position == 4) { 
      mp = MediaPlayer.create(getActivity(), R.raw.sound5); 
      mp.start(); 
     } 
     else if(position == 5) { 
      mp = MediaPlayer.create(getActivity(), R.raw.sound6); 
      mp.start(); 
     } 

    } 

    public class CustomGridAdapter extends BaseAdapter { 

     private MainActivity context; 
     private String[] items; 
     LayoutInflater inflater; 

     public CustomGridAdapter(MainActivity context, String[] items) { 
      this.context = context; 
      this.items = items; 
      inflater = (LayoutInflater) this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     } 


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

     @Override 
     public Object getItem(int position) { 
      return items[position]; 
     } 

     @Override 
     public long getItemId(int position) { 
      return position; 
     } 

     @Override 
     public View getView(final int position, View convertView, ViewGroup parent) { 

      if (convertView == null) { 
       convertView = inflater.inflate(R.layout.single_item, null); 
      } 
      Button button = (Button) convertView.findViewById(R.id.button); 
      button.setText(items[position]); 
      button.setOnClickListener(new View.OnClickListener() { 

       @Override 
       public void onClick(View v) { 
        context.itemClicked(position); 
       } 
      }); 

      return convertView; 
     } 

    } 
} 

Comment puis-je résoudre ces deux questions?

Answer 1

1) Remplacer ceci:

gridView.setAdapter(new CustomGridAdapter(getActivity(), items)); 

Avec:

gridView.setAdapter(new CustomGridAdapter(this, items)); 

2) En CustomAdapter modifier comme suit:

private Context context; 
    private String[] items; 
    LayoutInflater inflater; 

    public CustomGridAdapter(Context context, String[] items) { 
     this.context = context; 
     this.items = items; 
     inflater = (LayoutInflater) this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    } 

Hope this helps.

Answer 2

essayez ceci:

gridView.setAdapter(new CustomGridAdapter(getActivity(), items)); 

dans CustomGridAdapter classe

public class CustomGridAdapter extends BaseAdapter{ 

    private Context context; 
    private String[] items; 
    LayoutInflater inflater; 

    public CustomGridAdapter(Context c, String[] items) { 
     this.context = c; 
     this.items = items; 
     inflater = (LayoutInflater) this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    } 

Maintenant, pour l'utilisation, cliquez auditeur:

button.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       if(context instanceof MainActivity) { 
        ((MainActivity) context).itemClicked(position); 
       } 
      } 
     });