ViewFlipper nie odwraca się z widokiem listy podrzędnej

Question

ViewFlipper nie działa podczas przesuwania. Jeśli wstawię inny widok zamiast widoku listy, przerzucanie działa dobrze. Czy jest jakiś inny kod, który powinienem dodać do listy? Widok wewnątrz i przewijania widoku flipper również nie działa na mnie :( To jest mój kod xml

<?xml version="1.0" encoding="utf-8"?> 
<ViewFlipper xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/vf" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent"> 

    <LinearLayout 
     android:layout_width="fill_parent" 
     android:layout_height="match_parent" 
     android:orientation="vertical"> 

     <ListView 
      android:id="@+id/list1" 
      android:layout_width="fill_parent" 
      android:layout_height="fill_parent"/> 
    </LinearLayout> 
    <LinearLayout 
     android:layout_width="fill_parent" 
     android:layout_height="match_parent" 
     android:orientation="vertical"> 
     <ListView 
      android:id="@+id/list2" 
      android:layout_width="fill_parent" 
      android:layout_height="fill_parent"/> 
    </LinearLayout> 
</ViewFlipper> 

To jest mój kod klasy.

import android.app.Activity; 
import android.os.Bundle; 
import android.view.GestureDetector; 
import android.view.GestureDetector.SimpleOnGestureListener; 
import android.view.MotionEvent; 
import android.view.View; 
import android.view.animation.Animation; 
import android.view.animation.AnimationUtils; 
import android.widget.AdapterView; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 
import android.widget.Toast; 
import android.widget.ViewFlipper; 
import android.widget.AdapterView.OnItemClickListener; 

public class MainActivity extends Activity { 

    private static final int SWIPE_MIN_DISTANCE = 120; 
    private static final int SWIPE_MAX_OFF_PATH = 250; 
    private static final int SWIPE_THRESHOLD_VELOCITY = 200; 
    private GestureDetector gestureDetector; 
    View.OnTouchListener gestureListener; 
    private Animation slideLeftIn; 
    private Animation slideLeftOut; 
    private Animation slideRightIn; 
    private Animation slideRightOut; 
    private ViewFlipper viewFlipper; 
    private ListView lv; 
    private String[] city = { "Indore", "Bhopal", "Khargone", "Ujjain", 
     "Nasik", "Pune", "Delhi", "Mumbai", "Noida", "Hyderabad", 
     "Banglore", "Ajmer", "Goa", "Jaipur", "Nagpur", "" }; 
    private String[] country = { "India", "Bhutan", "Kuwait", "USA", }; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main_layout); 
     lv = (ListView) findViewById(R.id.List01); 
     ListView lv2 = (ListView) findViewById(R.id.List02); 

     viewFlipper = (ViewFlipper) findViewById(R.id.flipper); 
     slideLeftIn = AnimationUtils.loadAnimation(this, R.anim.slide_left_in); 
     slideLeftOut = AnimationUtils 
       .loadAnimation(this, R.anim.slide_left_out); 
     slideRightIn = AnimationUtils 
       .loadAnimation(this, R.anim.slide_right_in); 
     slideRightOut = AnimationUtils.loadAnimation(this, 
       R.anim.slide_right_out); 

     gestureDetector = new GestureDetector(new MyGestureDetector()); 
     gestureListener = new View.OnTouchListener() { 
      public boolean onTouch(View v, MotionEvent event) { 
       if (gestureDetector.onTouchEvent(event)) { 
        return true; 
       } 
       return false; 
      } 
     }; 
     lv.setAdapter(new ArrayAdapter<String>(this, 
       android.R.layout.simple_list_item_1, city)); 
     lv2.setAdapter(new ArrayAdapter<String>(this, 
       android.R.layout.simple_list_item_1, country)); 
     lv.setOnItemClickListener(new OnItemClickListener() { 
      public void onItemClick(AdapterView arg0, View view, int position, 
        long id) { 
       // user clicked a list item, make it "selected" 
       Toast.makeText(getBaseContext(), "Item Clicked", 
         Toast.LENGTH_SHORT).show(); 
       // selectedAdapter.setSelectedPosition(position); 
      } 
     }); 
     lv2.setOnItemClickListener(new OnItemClickListener() { 
      public void onItemClick(AdapterView arg0, View view, int position, 
        long id) { 
       // user clicked a list item, make it "selected" 
       Toast.makeText(getBaseContext(), "Item List2 Clicked", 
         Toast.LENGTH_SHORT).show(); 
       // selectedAdapter.setSelectedPosition(position); 
      } 
     }); 
    } 

    class MyGestureDetector extends SimpleOnGestureListener { 
     @Override 
     public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, 
       float velocityY) { 
      try { 
       if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH) 
        return false; 
       // right to left swipe 
       if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE 
         && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) { 
        viewFlipper.setInAnimation(slideLeftIn); 
        viewFlipper.setOutAnimation(slideLeftOut); 
        viewFlipper.showNext(); 
       } else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE 
         && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) { 
        viewFlipper.setInAnimation(slideRightIn); 
        viewFlipper.setOutAnimation(slideRightOut); 
        viewFlipper.showPrevious(); 
       } 
      } catch (Exception e) { 
       // nothing 
      } 
      return false; 
     } 
    } 

    @Override 
    public boolean onTouchEvent(MotionEvent event) { 
     if (gestureDetector.onTouchEvent(event)) 
      return true; 
     else 
      return false; 
    } 
} 

Zastąp dispatchTouchEvent zamiast onTouchEvent sprawia, że ​​zarówno widok przewijania i gest dobrze działa.

@Override 
public boolean dispatchTouchEvent(MotionEvent event) { 
    super.dispatchTouchEvent(event); 
    return gestureDetector.onTouchEvent(event); 
} 

Answer 1

Przewijanie nie bierze efekt, jak już overrided ge dlatego musisz również ręcznie pobrać efekt przewijania w przypadku.