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POSwipe Gesture inside ListView - Android
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  1. POSwipe Gesture inside ListView - Android
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    copied!<p>I am a newbie for Android. I got a tutorial on how to implement the <code>`listView</code> <a href="http://www.androidhive.info/2012/02/android-custom-listview-with-image-and-text/" rel="nofollow">here</a>: </p> <p>I implemented it and it is working fine. I need to implement a <code>ViewSwitcher</code> for the same. Like when I swipe the song, I need to get some options like <em>play</em>, <em>add to queue</em> etc.,</p> <p>Pls go through that tutorial and pls help. I'm struggling almost from 3 weeks.</p> <p>Hope someone will help me.</p> <p><strong>Edit 1</strong>: The below code is the main Activity:</p> <pre><code>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&lt;HashMap&lt;String, String&gt;&gt; songsList = new ArrayList&lt;HashMap&lt;String, String&gt;&gt;(); 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 &lt;song&gt; for (int i = 0; i &lt; nl.getLength(); i++) { // creating new HashMap HashMap&lt;String, String&gt; map = new HashMap&lt;String, String&gt;(); Element e = (Element) nl.item(i); // adding each child node to HashMap key =&gt; 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&lt;?&gt; 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 &gt; 100 và khoảng cách từ điểm kéo đầu đến điểm kéo cuối &gt; 100 if( (xvelocity &gt; SWIPE_MIN_VELOCITY) &amp;&amp; (xdistance &gt; SWIPE_MIN_DISTANCE) ) { if(ev1X &gt; 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></pre> <p>Below code the XML file.</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;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" &gt; &lt;include android:layout_width="wrap_content" android:layout_height="wrap_content" layout="@layout/list_row_main" /&gt; &lt;include android:layout_width="wrap_content" android:layout_height="wrap_content" layout="@layout/list_row_swipe" /&gt; &lt;/ViewSwitcher&gt; </code></pre>
 

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