Androidはリストビューからデータを取得し、新しいアクティビティで表示します

Question

私はAndroidが初めてです。 lv.setOnItemClickListenerと呼んで、ListViewから選択した項目を選択し、新しいインテントを通して新しいアクティビティにデータを表示しました。しかし、私はこれをすることはできないのか分かりません。助けが必要です。

MainActivity

public class MainActivity extends Activity implements 
     SearchView.OnQueryTextListener { 

    ListView lv; 
    SearchView search_view; 

    String[] country_names, iso_codes; 
    TypedArray country_flags; 

    ArrayList<Country> countrylist; 
    CustomAdapter adapter; 

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

     lv = (ListView) findViewById(R.id.list_view); 
     search_view = (SearchView) findViewById(R.id.search_view); 

     country_names = getResources().getStringArray(R.array.country_names); 
     iso_codes = getResources().getStringArray(R.array.iso_Code); 
     country_flags = getResources().obtainTypedArray(R.array.country_flags); 

     countrylist = new ArrayList<Country>(); 
     for (int i = 0; i < country_names.length; i++) { 
      Country country = new Country(country_names[i], iso_codes[i], 
        country_flags.getResourceId(i, -1)); 
      countrylist.add(country); 
     } 

     adapter = new CustomAdapter(getApplicationContext(), countrylist); 
     lv.setAdapter(adapter); 

     lv.setOnItemClickListener(new OnItemClickListener(){ 

      public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, 
      long arg3) { 


     **// I DON'T KNOW WHAT PUT HERE** 





      } 

     }); 

     search_view.setOnQueryTextListener(this); 
    } 

    @Override 
    public boolean onQueryTextChange(String newText) { 
     adapter.getFilter().filter(newText); 
     return false; 
    } 

    @Override 
    public boolean onQueryTextSubmit(String query) { 
     return false; 
    } 

} 

国

パブリッククラス国{

String name; 
    int flag; 
    String iso_code; 

    Country(String name, String iso_code, int flag) { 
     this.name = name; 
     this.iso_code = iso_code; 
     this.flag = flag; 
    } 

    public String getIso_code() { 
     return iso_code; 
    } 

    public void setIso_code(String iso_code) { 
     this.iso_code = iso_code; 
    } 

    public String getName() { 
     return name; 
    } 

    public void setName(String name) { 
     this.name = name; 
    } 

    public int getFlag() { 
     return flag; 
    } 

    public void setFlag(int flag) { 
     this.flag = flag; 
    } 

} 

カスタム・アダプタ

public class CustomAdapter extends BaseAdapter implements Filterable { 

    Context context; 
    ArrayList<Country> countrylist; 
    ArrayList<Country> mStringFilterList; 
    ValueFilter valueFilter; 

    CustomAdapter(Context context, ArrayList<Country> countrylist) { 
     this.context = context; 
     this.countrylist = countrylist; 
     mStringFilterList = countrylist; 
    } 

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

    @Override 
    public Object getItem(int position) { 
     return countrylist.get(position); 
    } 

    @Override 
    public long getItemId(int position) { 
     return countrylist.indexOf(getItem(position)); 
    } 

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

     LayoutInflater mInflater = (LayoutInflater) context 
       .getSystemService(Activity.LAYOUT_INFLATER_SERVICE); 

     convertView = null; 
     if (convertView == null) { 
      convertView = mInflater.inflate(R.layout.list_item, null); 

      TextView name_tv = (TextView) convertView.findViewById(R.id.name); 
      TextView iso_tv = (TextView) convertView.findViewById(R.id.code); 
      ImageView iv = (ImageView) convertView.findViewById(R.id.flag); 

      Country country = countrylist.get(position); 

      name_tv.setText(country.getName()); 
      iso_tv.setText(country.getIso_code()); 
      iv.setImageResource(country.getFlag()); 
     } 
     return convertView; 
    } 

    @Override 
    public Filter getFilter() { 
     if (valueFilter == null) { 
      valueFilter = new ValueFilter(); 
     } 
     return valueFilter; 
    } 

    private class ValueFilter extends Filter { 
     @Override 
     protected FilterResults performFiltering(CharSequence constraint) { 
      FilterResults results = new FilterResults(); 

      if (constraint != null && constraint.length() > 0) { 
       ArrayList<Country> filterList = new ArrayList<Country>(); 
       for (int i = 0; i < mStringFilterList.size(); i++) { 
        if ((mStringFilterList.get(i).getName().toUpperCase()) 
          .contains(constraint.toString().toUpperCase())) { 

         Country country = new Country(mStringFilterList.get(i) 
           .getName(), mStringFilterList.get(i) 
           .getIso_code(), mStringFilterList.get(i) 
           .getFlag()); 

         filterList.add(country); 
        } 
       } 
       results.count = filterList.size(); 
       results.values = filterList; 
      } else { 
       results.count = mStringFilterList.size(); 
       results.values = mStringFilterList; 
      } 
      return results; 

     } 

     @Override 
     protected void publishResults(CharSequence constraint, 
       FilterResults results) { 
      countrylist = (ArrayList<Country>) results.values; 
      notifyDataSetChanged(); 
     } 

    } 

} 

Answer 1

Intent intent=new Intent(getActivity(),StartAnotherActitivity.class); 
intent.putExtra(key,value); 
startActivity(intent); 

ここで

http://developer.android.com/reference/android/content/Intent.html

Answer 2

Intent intent = new Intent(MainActivity.this,NewActivity.class); 
intent.putExtra("Counttry",countrylist.get(arg2)); 
startActivity(intent); 

Answer 3

手順です。

1. アイテムの位置がクリックされた取得：この値は、次のactivity
2. がクリックされたのindexを読む起動しようとする今、Intent extraとしてこの値を入れる方法onItemClick
3. に渡されますアイテムは、あなたの次のActivity
4. から、（文字列を詳しくactivity