確定我從車輪上選擇了什麼android

我使用here的車輪選擇器代碼。所以我們可以說我想實現類似citiesactivities.java的東西。代碼如下。我現在想要的是：當用戶使用滑塊選擇他想要的內容時，按一下按鈕開始並將他帶到新的活動中。所以我必須插入buttonOnClickListener，但我不知道在哪裏？我的意思是在代碼中的哪個位置指定用戶選擇的項目？我的意思是如果選擇加拿大和溫哥華，按下去帶他去加拿大溫哥華活動，如果多倫多去加拿大的多倫多活動等等。確定我從車輪上選擇了什麼android

代碼是在這裏：

package kankan.wheel.demo; 

import kankan.wheel.R; 
import kankan.wheel.widget.OnWheelChangedListener; 
import kankan.wheel.widget.OnWheelScrollListener; 
import kankan.wheel.widget.WheelView; 
import kankan.wheel.widget.adapters.AbstractWheelTextAdapter; 
import kankan.wheel.widget.adapters.ArrayWheelAdapter; 

import android.app.Activity; 
import android.content.Context; 
import android.os.Bundle; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.ImageView; 

public class CitiesActivity extends Activity { 
    // Scrolling flag 
    private boolean scrolling = false; 

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

     setContentView(R.layout.cities_layout); 

     final WheelView country = (WheelView) findViewById(R.id.country); 
     country.setVisibleItems(3); 
     country.setViewAdapter(new CountryAdapter(this)); 

     final String cities[][] = new String[][] { 
       new String[] {"New York", "Washington", "Chicago", "Atlanta", "Orlando"}, 
       new String[] {"Ottawa", "Vancouver", "Toronto", "Windsor", "Montreal"}, 
       new String[] {"Kiev", "Dnipro", "Lviv", "Kharkiv"}, 
       new String[] {"Paris", "Bordeaux"}, 
       }; 

     final WheelView city = (WheelView) findViewById(R.id.city); 
     city.setVisibleItems(5); 

     country.addChangingListener(new OnWheelChangedListener() { 
      public void onChanged(WheelView wheel, int oldValue, int newValue) { 
       if (!scrolling) { 
        updateCities(city, cities, newValue); 
       } 
      } 
     }); 

     country.addScrollingListener(new OnWheelScrollListener() { 
      public void onScrollingStarted(WheelView wheel) { 
       scrolling = true; 
      } 
      public void onScrollingFinished(WheelView wheel) { 
       scrolling = false; 
       updateCities(city, cities, country.getCurrentItem()); 
      } 
     }); 

     country.setCurrentItem(1); 
    } 

    /** 
    * Updates the city wheel 
    */ 
    private void updateCities(WheelView city, String cities[][], int index) { 
     ArrayWheelAdapter<String> adapter = 
      new ArrayWheelAdapter<String>(this, cities[index]); 
     adapter.setTextSize(18); 
     city.setViewAdapter(adapter); 
     city.setCurrentItem(cities[index].length/2);   
    } 

    /** 
    * Adapter for countries 
    */ 
    private class CountryAdapter extends AbstractWheelTextAdapter { 
     // Countries names 
     private String countries[] = 
      new String[] {"USA", "Canada", "Ukraine", "France"}; 
     // Countries flags 
     private int flags[] = 
      new int[] {R.drawable.usa, R.drawable.canada, R.drawable.ukraine, R.drawable.france}; 

     /** 
     * Constructor 
     */ 
     protected CountryAdapter(Context context) { 
      super(context, R.layout.country_layout, NO_RESOURCE); 

      setItemTextResource(R.id.country_name); 
     } 

     @Override 
     public View getItem(int index, View cachedView, ViewGroup parent) { 
      View view = super.getItem(index, cachedView, parent); 
      ImageView img = (ImageView) view.findViewById(R.id.flag); 
      img.setImageResource(flags[index]); 
      return view; 
     } 

     @Override 
     public int getItemsCount() { 
      return countries.length; 
     } 

     @Override 
     protected CharSequence getItemText(int index) { 
      return countries[index]; 
     } 
    } 
}

來源

2012-04-07 ghostrider

我終於找到了答案。名爲getCurrentItem（）的包中有一個函數。

來源

2012-04-09 21:23:34 ghostrider

確定我從車輪上選擇了什麼android

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