Android自定義列表視圖事件監聽器

Question

我需要一些幫助。我想從我的自定義ListView中提取數據，但不知道如何。我想獲取在另一項活動中選擇的項目的數據。我必須顯示用戶選擇的菜單。

這裏是我的代碼：

package com.example.mouhamedalysidibe.restaurant; 

public class Menus extends AppCompatActivity { 
    public TabHost host ; 

int[] Imagesfood = {R.drawable.pizza,R.drawable.baguette, R.drawable.pastas , R.drawable.donuts , R.drawable.snacks }; 
    String [] nomsfood = {"Pizza" , "Baguettes" ,"Pastas" , "Donuts" , "Snacks"}; 
    String [] descriptionfood = {"Les meilleurs pizzas de Dakar" , "Explosion de saveurs a prix mini" , "Laissez vous tenter" , "Al dente et tellement genereuses ", "Un delice a chaque bouchée"}; 

    int[] Imagesdrink = {R.drawable.gazeuse,R.drawable.alcool, R.drawable.cocktail , R.drawable.chaude}; 
    String [] nomsdrink = {"Boissons gazeuses" , "Alccol " ,"Cocktails" , "Boissons chaudes"}; 
    String [] descriptiondrink = {"Pensez a vous desalterer" , "De la bonne qualite" , "Decouvrez nos coktails" , "Un bon cafe ne fait jamais de mal"}; 

    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.menus); 

     //tabhost 
     host = (TabHost)findViewById(R.id.tabHost); 
     host.setup(); 

     //Layouts 
     TabHost.TabSpec spec = host.newTabSpec("EAT"); 
     spec.setContent(R.id.Eat); 
     spec.setIndicator("FOOD"); 
     host.addTab(spec); 

     //Widgets 
     spec = host.newTabSpec("DRINKS"); 
     spec.setContent(R.id.Drink); 
     spec.setIndicator("DRINK"); 
     host.addTab(spec); 


     TextView tablefood = (TextView)findViewById(R.id.table); 
     TextView tableDrink =(TextView)findViewById(R.id.tableD); 
     Intent intent = getIntent(); 


     String tabletextfood = intent.getStringExtra("table"); 
     tablefood.setText(""+tabletextfood); 
     String tabletextdrink = intent.getStringExtra("table"); 
     tableDrink.setText(""+tabletextdrink); 

     //Listview Food 

     final ListView listmenufood = (ListView)findViewById(R.id.listView_food); 
     CustomAdapterFood customAdapterFood = new CustomAdapterFood(); 
     listmenufood.setAdapter(customAdapterFood); 
     listmenufood.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
      @Override 
      public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) { 
       view =(View) adapterView.getItemAtPosition(i); 
       Intent intent = new Intent(Menus.this,Plats.class); 

       startActivity(intent); 


      } 
     }); 

     //Listview drink 

     ListView listmenudrink = (ListView)findViewById(R.id.listView_drink); 
     CustomAdapterDrink customAdapterDrink = new CustomAdapterDrink(); 

     listmenudrink.setAdapter(customAdapterDrink); 


    } 

    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     getMenuInflater().inflate(R.menu.menu,menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     if(item.getItemId()==R.id.appel){ 
      final AlertDialog retry = new AlertDialog.Builder(this).create(); 
      retry.setTitle(R.string.app_name); 
      retry.setMessage("MERCI DE PATIENTER QUELQUES INSTANTS , NOUS VENONS BIENTOT PRENDRE VOTRE COMMANDE"); 
      retry.setButton(AlertDialog.BUTTON_NEUTRAL,"OK",new DialogInterface.OnClickListener(){ 
       @Override 
       public void onClick(DialogInterface dialogInterface, int i) { 
        retry.cancel(); 
       } 
      }); 



      retry.show(); 


     } 
     return super.onOptionsItemSelected(item); 
    } 


    // Foods 

    public class CustomAdapterFood extends BaseAdapter{ 


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

     @Override 
     public Object getItem(int i) { 
      return null; 
     } 

     @Override 
     public long getItemId(int i) { 
      return 0; 
     } 

     @Override 
     public View getView(int i, View view, ViewGroup viewGroup) { 
      view = getLayoutInflater().inflate(R.layout.customlayout ,null); 
      ImageView imageView = (ImageView)view.findViewById(R.id.img); 
      TextView nom = (TextView)view.findViewById(R.id.TextView_nom); 
      TextView descrip =(TextView)view.findViewById(R.id.TextView_description); 
      imageView.setImageResource(Imagesfood[i]); 
      nom.setText(nomsfood[i]); 
      descrip.setText(descriptionfood[i]); 

      return view; 
     } 
    } 



    //Drinks 

    public class CustomAdapterDrink extends BaseAdapter{ 


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

     @Override 
     public Object getItem(int i) { 
      return null; 
     } 

     @Override 
     public long getItemId(int i) { 
      return 0; 
     } 

     @Override 
     public View getView(int i, View view, ViewGroup viewGroup) { 
      view = getLayoutInflater().inflate(R.layout.customdrinklayout,null); 
      ImageView imageView = (ImageView)view.findViewById(R.id.img); 
      TextView nom = (TextView)view.findViewById(R.id.TextView_nom); 
      TextView descrip =(TextView)view.findViewById(R.id.TextView_description); 
      imageView.setImageResource(Imagesdrink[i]); 
      nom.setText(nomsdrink[i]); 
      descrip.setText(descriptiondrink[i]); 
      return view; 
     } 
    } 
} 

Answer 1

如果你想返回圖像，名稱&說明你需要爲你的食物創建類和飲料

//food 
public class food { 
int image; 
String name,description; 

public food(int image, String name, String description) { 

    this.image = image; 
    this.name = name; 
    this.description = description; 
} 
public String getDescription() { 
    return description; 
} 

public String getName() { 
    return name; 
} 

public int getImage() { 
    return image; 
} 

} 

同樣，對於飲料

添加食物和飲料對象列表

foods.add(new food(R.drawable.pizza,"Pizza","description")); 
    foods.add(new food(R.drawable.pasta,"Pasta","description")); 
    //add the rest 

     //similarly for drink 

    drinks.add(new drink(R.drawable.somedrink,"name","description")); 
    drinks.add(new drink(R.drawable.somedrink,"name","description")); 

    //add the rest 

改變你的自定義適配器這些

 public class CustomAdapterFood extends BaseAdapter { 

的ArrayList foodlist;

public CustomAdapterFood(ArrayList<food> foodlist) { 
     this.foodlist = foodlist; 
    } 

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

    @Override 
    public Object getItem(int i) { 
     return foodlist.get(i); 
    } 

    @Override 
    public long getItemId(int i) { 
     return 0; 
    } 

    @Override 
    public View getView(int i, View view, ViewGroup viewGroup) { 
     view = getLayoutInflater().inflate(R.layout.customlayout ,null); 
     ImageView imageView = (ImageView)view.findViewById(R.id.img); 
     TextView nom = (TextView)view.findViewById(R.id.TextView_nom); 
     TextView descrip =(TextView)view.findViewById(R.id.TextView_description); 
     imageView.setImageResource(foodlist.get(i).getImage()); 
     nom.setText(foodlist.get(i).getName()); 
     descrip.setText(foodlist.get(i).getDescription()); 

     return view; 
    } 
} 

和

public class CustomAdapterDrink extends BaseAdapter{ 
    ArrayList<drink> drinklist; 

    public CustomAdapterDrink(ArrayList<drink> drinklist) { 
     this.drinklist = drinklist; 
    } 

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

    @Override 
    public Object getItem(int i) { 
     return drinklist.get(i); 
    } 

    @Override 
    public long getItemId(int i) { 
     return 0; 
    } 

    @Override 
    public View getView(int i, View view, ViewGroup viewGroup) { 
     view = getLayoutInflater().inflate(R.layout.customdrinklayout,null); 
     ImageView imageView = (ImageView)view.findViewById(R.id.img); 
     TextView nom = (TextView)view.findViewById(R.id.TextView_nom); 
     TextView descrip =(TextView)view.findViewById(R.id.TextView_description); 
     imageView.setImageResource(drinklist.get(i).getImage()); 
     nom.setText(drinklist.get(i).getName()); 
     descrip.setText(drinklist.get(i).getDescription()); 
     return view; 
    } 
} 

而創建適配器通過名單給他們 這樣的：

 CustomAdapterDrink customAdapterDrink = new CustomAdapterDrink(drinks); 

     CustomAdapterFood customAdapterFood = new CustomAdapterFood(foods);