Ich bin ein Neuling für Android. Ich habe ein Tutorial bekommen, wie man das umsetzt`listView Hier:

Ich habe es implementiert und es funktioniert gut. Ich muss ein implementierenViewSwitcher für das Selbe. Zum Beispiel, wenn ich das Lied wische, muss ich einige Optionen wie bekommenabspielen, zur Warteschlange hinzufügen usw.,

Bitte gehen Sie dieses Tutorial durch und pls helfen. Ich habe seit fast 3 Wochen Probleme.

Hoffe, jemand wird mir helfen.

Bearbeiten 1: Der folgende Code ist die Hauptaktivität:

import java.util.ArrayList;
import java.util.HashMap;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;

import android.view.GestureDetector;
import android.view.GestureDetector.OnGestureListener;
import android.view.MotionEvent;
import android.widget.ViewSwitcher;

public class CustomizedListView extends Activity implements OnGestureListener{
// All static variables
static final String URL = "http://api.androidhive.info/music/music.xml";
// XML node keys
static final String KEY_SONG = "song"; // parent node
static final String KEY_ID = "id";
static final String KEY_TITLE = "title";
static final String KEY_ARTIST = "artist";
static final String KEY_DURATION = "duration";
static final String KEY_THUMB_URL = "thumb_url";


private ViewSwitcher switcher1;
private GestureDetector gesturedetector = null;
ListView list;
LazyAdapter adapter;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    ArrayList<HashMap<String, String>> songsList = new ArrayList<HashMap<String, String>>();

    XMLParser parser = new XMLParser();
    String xml = parser.getXmlFromUrl(URL); // getting XML from URL
    Document doc = parser.getDomElement(xml); // getting DOM element

    NodeList nl = doc.getElementsByTagName(KEY_SONG);
    // looping through all song nodes <song>
    for (int i = 0; i < nl.getLength(); i++) {
        // creating new HashMap
        HashMap<String, String> map = new HashMap<String, String>();
        Element e = (Element) nl.item(i);
        // adding each child node to HashMap key => value
        map.put(KEY_ID, parser.getValue(e, KEY_ID));
        map.put(KEY_TITLE, parser.getValue(e, KEY_TITLE));
        map.put(KEY_ARTIST, parser.getValue(e, KEY_ARTIST));
        map.put(KEY_DURATION, parser.getValue(e, KEY_DURATION));
        map.put(KEY_THUMB_URL, parser.getValue(e, KEY_THUMB_URL));

        // adding HashList to ArrayList
        songsList.add(map);

    }


    list=(ListView)findViewById(R.id.list);

    // Getting adapter by passing xml data ArrayList
    adapter=new LazyAdapter(this, songsList);        
    list.setAdapter(adapter);


    // Click event for single list row
    list.setOnItemClickListener(new OnItemClickListener() {

        public void onItemClick(AdapterView<?> parent, View view,
                int position, long id) {


        }
    });



}   


@Override
public boolean onTouchEvent(MotionEvent event) {
        return gesturedetector.onTouchEvent(event);
}

public boolean onDown(MotionEvent e) {
    // TODO Auto-generated method stub
    return false;
}
int SWIPE_MIN_VELOCITY = 100;
int SWIPE_MIN_DISTANCE = 100;
//Sự kiện khi bạn vuốt màn hình đưa sang một bên nào đó

public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,float velocityY) {
    //Get Position
    float ev1X = e1.getX();
    float ev2X = e2.getX();

    //Get distance of X (e1) to X (e2)
    final float xdistance = Math.abs(ev1X - ev2X);
    //Get veclocity of cusor
    //Vận tốc = số điểm ảnh (px) / giây
   final float xvelocity = Math.abs(velocityX);

   //Vận tốc chuyển đổi X > 100 và khoảng cách từ điểm kéo đầu đến điểm kéo cuối > 100
   if( (xvelocity > SWIPE_MIN_VELOCITY) && (xdistance > SWIPE_MIN_DISTANCE) )
   {
        if(ev1X > ev2X)//Switch Left
        {
            previousView();
        }
        else//Switch Right
        {
            nextView();
        }
   }

    return false;
}

public void onLongPress(MotionEvent e) {

}

public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,float distanceY) {
    return false;
}

public void onShowPress(MotionEvent e) {

}

public boolean onSingleTapUp(MotionEvent e) {
    return false;
}

//Next, Previous Views
private void previousView() {
    switcher1.showPrevious();
}
private void nextView() {
    switcher1.showNext();
}

Code unten die XML-Datei.

<?xml version="1.0" encoding="utf-8"?>
  <ViewSwitcher xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/viewSwitcher1"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:layout_alignParentLeft="true"
     android:layout_alignParentTop="true" >

   <include
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     layout="@layout/list_row_main" />

   <include
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     layout="@layout/list_row_swipe" />

</ViewSwitcher>