在標籤片段中創建列表視圖

Question

我試圖創建一個可以在其中顯示列表視圖的標籤..在我創建evrything後，紅線出現在3部分（如下面）顯示的問題..我嘗試了一切還沒有working..I希望有人可以給我暗示或一些有用的答案..

import android.app.Activity; 
import android.app.Fragment; 
import android.os.Bundle; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.AdapterView; 
import android.widget.ArrayAdapter; 
import android.widget.ImageView; 
import android.widget.ListView; 
import android.widget.TextView; 
import android.widget.Toast; 

/** 
* Created by Alhaadi on 23/3/2017. 
*/ 

public class Drink extends android.support.v4.app.Fragment { 

    ListView list; 
    String[] itemname ={ 
      "Safari", 
      "Camera", 
      "Global", 
      "FireFox", 
      "UC Browser", 
      "Android Folder", 
      "VLC Player", 
      "Cold War", 
      "Nasi Basi", 
    }; 

    String[] price = { 
      "rm 9.00", 
      "rm 7.00", 
      "rm 8.00", 
      "rm 5.00", 
      "rm 9.00", 
      "rm 15.00", 
      "rm 8.00", 
      "rm 8.00", 
      "rm 9.00", 
    }; 

    Integer[] imgid={ 
      R.drawable.food1, 
      R.drawable.food2, 
      R.drawable.food3, 
      R.drawable.food4, 
      R.drawable.food5, 
      R.drawable.food6, 
      R.drawable.food7, 
      R.drawable.food8, 
      R.drawable.food9, 
    }; 

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

     CustomListAdapter adapter=new CustomListAdapter(this, itemname, imgid, price);//here the problem 
     list=(ListView)findViewById(R.id.mainlistdrink); //here the problem redline at findviewbyId 
     list.setAdapter(adapter); 

     list.setOnItemClickListener(new AdapterView.OnItemClickListener() { 



      @Override 
      public void onItemClick(AdapterView<?> parent, View view, 
            int position, long id) { 
       // TODO Auto-generated method stub 
       String Slecteditem= itemname[+position]; 
       Toast.makeText(getApplicationContext(), Slecteditem, Toast.LENGTH_SHORT).show(); //here the problem redline at getaApplicationContext() 
      } 
     }); 
    } 

    public class CustomListAdapter extends ArrayAdapter<String> { 

     private final Activity context; 
     private final String[] itemname; 
     private final Integer[] imgid; 
     private final String[] price; 


     public CustomListAdapter(Activity context, String[] itemname, Integer[] imgid, String[] price) { 
      super(context, R.layout.drinklist, itemname); 
      // TODO Auto-generated constructor stub 

      this.context=context; 
      this.itemname=itemname; 
      this.imgid=imgid; 
      this.price=price; 
     } 

     public View getView(int position,View view,ViewGroup parent) { 
      LayoutInflater inflater=context.getLayoutInflater(); 
      View rowView=inflater.inflate(R.layout.drinklist, null,true); 

      TextView txtTitle = (TextView) rowView.findViewById(R.id.drinkname); 
      ImageView imageView = (ImageView) rowView.findViewById(R.id.drinklistview); 
      TextView extratxt = (TextView) rowView.findViewById(R.id.drinkname); 

      txtTitle.setText(itemname[position]); 
      imageView.setImageResource(imgid[position]); 
      extratxt.setText(price[position]); 
      return rowView; 

     } 
    } 

} 

這是標籤類..

package com.example.alhaadi.foodvault; 

import android.app.Activity; 
import android.support.design.widget.TabLayout; 
import android.support.design.widget.FloatingActionButton; 
import android.support.design.widget.Snackbar; 
import android.support.v4.app.FragmentActivity; 
import android.support.v7.app.AppCompatActivity; 
import android.support.v7.widget.Toolbar; 

import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentManager; 
import android.support.v4.app.FragmentPagerAdapter; 
import android.support.v4.view.ViewPager; 
import android.os.Bundle; 
import android.view.LayoutInflater; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.view.ViewGroup; 

import android.widget.TextView; 

public class Tabmenu extends AppCompatActivity{ 

    /** 
    * The {@link android.support.v4.view.PagerAdapter} that will provide 
    * fragments for each of the sections. We use a 
    * {@link FragmentPagerAdapter} derivative, which will keep every 
    * loaded fragment in memory. If this becomes too memory intensive, it 
    * may be best to switch to a 
    * {@link android.support.v4.app.FragmentStatePagerAdapter}. 
    */ 
    private SectionsPagerAdapter mSectionsPagerAdapter; 

    /** 
    * The {@link ViewPager} that will host the section contents. 
    */ 
    private ViewPager mViewPager; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_tabmenu); 

     Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
     setSupportActionBar(toolbar); 
     // Create the adapter that will return a fragment for each of the three 
     // primary sections of the activity. 
     mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager()); 

     // Set up the ViewPager with the sections adapter. 
     mViewPager = (ViewPager) findViewById(R.id.container); 
     mViewPager.setAdapter(mSectionsPagerAdapter); 

     TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs); 
     tabLayout.setupWithViewPager(mViewPager); 

     FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); 
     fab.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) 
         .setAction("Action", null).show(); 
      } 
     }); 

    } 


    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.menu_tabmenu, menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     int id = item.getItemId(); 

     //noinspection SimplifiableIfStatement 
     if (id == R.id.action_settings) { 
      return true; 
     } 

     return super.onOptionsItemSelected(item); 
    } 



    public class SectionsPagerAdapter extends FragmentPagerAdapter { 

    public SectionsPagerAdapter(FragmentManager fm) { 
     super(fm); 
    } 

    @Override 
    public Fragment getItem(int position) { 

     switch (position){ 
      case 0: 
       Food food = new Food(); 
       return food; 

      case 1: 
       Drink drink = new Drink(); 
       return drink; 

      case 2: 
       Bread bread = new Bread(); 
       return bread; 

      case 3: 
       Dessert dessert = new Dessert(); 
       return dessert; 

      default: 
       return null; 
     } 
    } 

    @Override 
    public int getCount() { 
     // Show 3 total pages. 
     return 4; 
    } 

    @Override 
    public CharSequence getPageTitle(int position) { 
     switch (position) { 
      case 0: 
       return "FOOD"; 
      case 1: 
       return "DRINK"; 
      case 2: 
       return "BREAD"; 
      case 3: 
       return "DESSERT"; 
     } 
     return null; 
    } 
} 
} 

Answer 1

我想你應該嘗試改變你的整數[]爲int []，也許我猜