android - HorizontalListview not scrolling -

my horizontallistview not scroll me please solution of previous post how load dynamic images in custom listview horizontallistview class display image problem not scrolling if add 3 images 1 &half display how add scrol view in code me please. every thing work fine horizontal listview not scroll

import android.content.context; import android.database.datasetobserver; import android.graphics.rect; import android.util.attributeset; import android.util.log; import android.view.gesturedetector; import android.view.gesturedetector.ongesturelistener; import android.view.motionevent; import android.view.view; import android.view.view.ontouchlistener; import android.widget.adapterview; import android.widget.listadapter; import android.widget.scroller;   public class horizontallistview extends adapterview<listadapter> {    public boolean malwaysoverridetouch = true;   protected listadapter madapter;   private int mleftviewindex = -1;   private int mrightviewindex = 0;   protected int mcurrentx;   protected int mnextx;   private int mmaxx = integer.max_value;   private int mdisplayoffset = 0;   protected scroller mscroller;   private gesturedetector mgesture;   private queue<view> mremovedviewqueue = new linkedlist<view>();   private onitemselectedlistener monitemselected;   private onitemclicklistener monitemclicked;   private onitemlongclicklistener monitemlongclicked;   private boolean mdatachanged = false;   private boolean mmeasureheightforvisibleonly = true;     public horizontallistview(context context, attributeset attrs) {     super(context, attrs);     initview();   }    private synchronized void initview() {     mleftviewindex = -1;     mrightviewindex = 0;     mdisplayoffset = 0;     mcurrentx = 0;     mnextx = 0;     mmaxx = integer.max_value;     mscroller = new scroller(getcontext());     mgesture = new gesturedetector(getcontext(), mongesture);   }    @override     public void setonitemselectedlistener(adapterview.onitemselectedlistener listener) {       monitemselected = listener;     }    @override     public void setonitemclicklistener(adapterview.onitemclicklistener listener){       monitemclicked = listener;     }    @override     public void setonitemlongclicklistener(adapterview.onitemlongclicklistener listener) {       monitemlongclicked = listener;     }    private datasetobserver mdataobserver = new datasetobserver() {      @override       public void onchanged() {         synchronized(horizontallistview.this){           mdatachanged = true;         }         invalidate();         requestlayout();       }      @override       public void oninvalidated() {         reset();         invalidate();         requestlayout();       }    };    @override     public listadapter getadapter() {       return madapter;     }    @override     public view getselectedview() {       //todo: implement       return null;     }    @override     public void setadapter(listadapter adapter) {       if(madapter != null) {         madapter.unregisterdatasetobserver(mdataobserver);       }       madapter = adapter;       madapter.registerdatasetobserver(mdataobserver);       reset();     }    /**    * @param visibleonly - if set true, height calculated    * using visible views. if set false height    * calculated using _all_ views in adapter. default true.    * careful when passing false, may result in    * significant performance hit larger number of views.    */   public void setheightmeasuremode(boolean visibleonly) {     if(mmeasureheightforvisibleonly != visibleonly) {       mmeasureheightforvisibleonly = visibleonly;       requestlayout();     }   }    private synchronized void reset(){     initview();     removeallviewsinlayout();     requestlayout();   }    @override     public void setselection(int position) {       //todo: implement     }    private void addandmeasurechild(final view child, int viewpos) {     layoutparams params = child.getlayoutparams();     if(params == null) {       params = new layoutparams(layoutparams.fill_parent, layoutparams.fill_parent);     }      addviewinlayout(child, viewpos, params, true);     child.measure(measurespec.makemeasurespec(getwidth(), measurespec.at_most),         measurespec.makemeasurespec(getheight(), measurespec.at_most));   }    @override     protected void onmeasure(int widthmeasurespec, int heightmeasurespec) {       super.onmeasure(widthmeasurespec, heightmeasurespec);        if(measurespec.getmode(heightmeasurespec) != measurespec.exactly) {         int height = 0;          if(mmeasureheightforvisibleonly) {           int childcount = getchildcount();           for(int = 0; < childcount; i++) {             view v = getchildat(i);             v.measure(measurespec.unspecified, measurespec.unspecified);             if(v.getmeasuredheight() > height) {               height = v.getmeasuredheight();             }           }         } else {            /* traverses _all_ views! bypasses view recycler! */            hashmap<integer, view> mrecycler = new hashmap<integer, view>();           int childcount = getadapter().getcount();           for(int = 0; < childcount; i++) {             int type = getadapter().getitemviewtype(i);             view convertview = mrecycler.get(type);             view v = getadapter().getview(i, convertview, this);             mrecycler.put(type, v);              v.measure(measurespec.unspecified, measurespec.unspecified);             if(v.getmeasuredheight() > height) {               height = v.getmeasuredheight();             }           }         }          if(measurespec.getmode(heightmeasurespec) == measurespec.at_most) {           int maxheight = measurespec.getsize(heightmeasurespec);           if(maxheight < height) {             height = maxheight;           }         }          setmeasureddimension(getmeasuredwidth(), height);       }     }    @override     protected synchronized void onlayout(boolean changed, int left, int top,         int right, int bottom) {       super.onlayout(changed, left, top, right, bottom);        if(madapter == null){         return;       }        if(mdatachanged){         int oldcurrentx = mcurrentx;         initview();         removeallviewsinlayout();         mnextx = oldcurrentx;         mdatachanged = false;       }        if(mscroller.computescrolloffset()){         int scrollx = mscroller.getcurrx();         mnextx = scrollx;       }        if(mnextx <= 0){         mnextx = 0;         mscroller.forcefinished(true);       }       if(mnextx >= mmaxx) {         mnextx = mmaxx;         mscroller.forcefinished(true);       }        int dx = mcurrentx - mnextx;        removenonvisibleitems(dx);       filllist(dx);       positionitems(dx);        mcurrentx = mnextx;        if(!mscroller.isfinished()){         post(new runnable(){             public void run() {             requestlayout();             }             });        }     }    private void filllist(final int dx) {     int edge = 0;     view child = getchildat(getchildcount()-1);     if(child != null) {       edge = child.getright();     }     filllistright(edge, dx);      edge = 0;     child = getchildat(0);     if(child != null) {       edge = child.getleft();     }     filllistleft(edge, dx);     }    private void filllistright(int rightedge, final int dx) {     while(rightedge + dx < getwidth() && mrightviewindex < madapter.getcount()) {        view child = madapter.getview(mrightviewindex, mremovedviewqueue.poll(), this);       addandmeasurechild(child, -1);       rightedge += child.getmeasuredwidth();        if(mrightviewindex == madapter.getcount()-1) {         mmaxx = mcurrentx + rightedge - getwidth();       }        if (mmaxx < 0) {         mmaxx = 0;       }       mrightviewindex++;     }    }    private void filllistleft(int leftedge, final int dx) {     while(leftedge + dx > 0 && mleftviewindex >= 0) {       view child = madapter.getview(mleftviewindex, mremovedviewqueue.poll(), this);       addandmeasurechild(child, 0);       leftedge -= child.getmeasuredwidth();       mleftviewindex--;       mdisplayoffset -= child.getmeasuredwidth();     }   }    private void removenonvisibleitems(final int dx) {     view child = getchildat(0);     while(child != null && child.getright() + dx <= 0) {       mdisplayoffset += child.getmeasuredwidth();       mremovedviewqueue.offer(child);       removeviewinlayout(child);       mleftviewindex++;       child = getchildat(0);      }      child = getchildat(getchildcount()-1);     while(child != null && child.getleft() + dx >= getwidth()) {       mremovedviewqueue.offer(child);       removeviewinlayout(child);       mrightviewindex--;       child = getchildat(getchildcount()-1);     }   }    private void positionitems(final int dx) {     if(getchildcount() > 0){       mdisplayoffset += dx;       int left = mdisplayoffset;       for(int i=0;i<getchildcount();i++){         view child = getchildat(i);         int childwidth = child.getmeasuredwidth();         child.layout(left, 0, left + childwidth, child.getmeasuredheight());         left += childwidth;       }     }   }    public synchronized void scrollto(int x) {     mscroller.startscroll(mnextx, 0, x - mnextx, 0);     requestlayout();   }    @override     public boolean dispatchtouchevent(motionevent ev) {       boolean handled = super.dispatchtouchevent(ev);       handled |= mgesture.ontouchevent(ev);       return handled;     }    protected boolean onfling(motionevent e1, motionevent e2, float velocityx,       float velocityy) {     synchronized(horizontallistview.this){       mscroller.fling(mnextx, 0, (int)-velocityx, 0, 0, mmaxx, 0, 0);     }     requestlayout();      return true;   }    protected boolean ondown(motionevent e) {     mscroller.forcefinished(true);     return true;   }    private ongesturelistener mongesture = new gesturedetector.simpleongesturelistener() {      @override       public boolean ondown(motionevent e) {         return horizontallistview.this.ondown(e);       }      @override       public boolean onfling(motionevent e1, motionevent e2, float velocityx,           float velocityy) {         return horizontallistview.this.onfling(e1, e2, velocityx, velocityy);       }      @override       public boolean onscroll(motionevent e1, motionevent e2,           float distancex, float distancey) {          synchronized(horizontallistview.this){           mnextx += (int)distancex;         }         requestlayout();          return true;       }      @override       public boolean onsingletapconfirmed(motionevent e) {         rect viewrect = new rect();         for(int i=0;i<getchildcount();i++){           view child = getchildat(i);           int left = child.getleft();           int right = child.getright();           int top = child.gettop();           int bottom = child.getbottom();           viewrect.set(left, top, right, bottom);           if(viewrect.contains((int)e.getx(), (int)e.gety())){             if(monitemclicked != null){               monitemclicked.onitemclick(horizontallistview.this, child, mleftviewindex + 1 + i, madapter.getitemid( mleftviewindex + 1 + ));             }             if(monitemselected != null){               monitemselected.onitemselected(horizontallistview.this, child, mleftviewindex + 1 + i, madapter.getitemid( mleftviewindex + 1 + ));             }             break;           }          }         return true;       }      @override       public void onlongpress(motionevent e) {         rect viewrect = new rect();         int childcount = getchildcount();         (int = 0; < childcount; i++) {           view child = getchildat(i);           int left = child.getleft();           int right = child.getright();           int top = child.gettop();           int bottom = child.getbottom();           viewrect.set(left, top, right, bottom);           if (viewrect.contains((int) e.getx(), (int) e.gety())) {             if (monitemlongclicked != null) {               monitemlongclicked.onitemlongclick(horizontallistview.this, child, mleftviewindex + 1 + i, madapter.getitemid(mleftviewindex + 1 + i));             }             break;           }          }       }    };    }                                <?xml version="1.0" encoding="utf-8"?>   <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="wrap_content" android:layout_height="wrap_content"  >  <imageview android:id="@+id/image" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="#fff" android:src="@drawable/icon" />  <textview android:id="@+id/title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textcolor="#000" android:gravity="center_horizontal" />        </linearlayout>                           <com.schoollunchapp.horizontallistview            android:id="@+id/listview"            android:layout_width="wrap_content"            android:layout_height="0dp"               android:layout_weight="0.6"             android:background="#eeeeee">   </com.schoollunchapp.horizontallistview> 

@override public boolean dispatchtouchevent(motionevent ev) {     boolean handled = super.dispatchtouchevent(ev);     handled |= mgesture.ontouchevent(ev); //this true during scrolling     return handled; //returning true stop listview functions scroll } 

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@override   public boolean onscroll(motionevent e1, motionevent e2,       float distancex, float distancey) {      synchronized(horizontallistview.this){       mnextx += (int)distancex;     }     requestlayout();      return true;   } 

this above code problem

according me listview won't scroll if return true in dispatchtouchevent function, true while scrolling in case. onscroll gesture returns true , listview never scrolls.

you trying perform scrolling manually. try returning false , don't handle scrolling manually.

i can't read complete code because long, have spotted problem you, can handle way want.