First, the preface
The old rules, others do not say, this demo is to find a very relevant knowledge of the collection, can be said to me this small white is racked my brains! Programmers are talking about no picture, no truth!
Now, everybody, come on!
Second, the more critical or scroller this class of
Package Com.icq.slideview.view;
Import Android.content.Context;
Import Android.util.AttributeSet;
Import Android.util.Log;
Import Android.util.TypedValue;
Import android.view.MotionEvent;
Import Android.view.View;
Import Android.widget.LinearLayout;
Import Android.widget.RelativeLayout;
Import Android.widget.Scroller;
Import Android.widget.TextView;
Import COM.ICQ.SLIDEVIEW.R; public class Slideview extends LinearLayout {private static final String TAG = Slideview; private context Mcontext; Priva
Te LinearLayout mviewcontent;
Private Relativelayout Mholder;
Private Scroller Mscroller;
Private Onslidelistener Monslidelistener;
private int mholderwidth = 120;
private int mlastx = 0;
private int mlasty = 0;
private static final int TAN = 2; Public interface Onslidelistener {public static final int slide_status_off = 0; public static final int Slide_status_star
T_scroll = 1;
public static final int slide_status_on = 2; /** * @param view current Slideview * @param status Slide_status_on or Slide_status_off */public void onslide (view view, int STATUS); Slideview (context) {super (context); Initview ();} public Slideview (context, AttributeSet attrs)
{Super (context, attrs); Initview ();} private void Initview () {mcontext = GetContext (); mscroller = new Scroller (mcontext); SetOrientation (Linearlayout.horizo
Ntal);
View.inflate (Mcontext, R.layout.slide_view_merge, this);
Mviewcontent = (linearlayout) Findviewbyid (r.id.view_content); Mholderwidth = Math.Round (Typedvalue.applydimension (Typedvalue.complex_unit_dip, Mholderwidth, GetResources ().
Getdisplaymetrics ())); public void SetButtonText (charsequence text) {(TextView) Findviewbyid (R.id.delete)). SetText (text); Setcontentview (view view) {Mviewcontent.addview (view);} public void Setonslidelistener (Onslidelistener Onslidelistener) {Monslidelistener = onslidelistener} public void shrink () {if (GETSCROLLX ()!= 0) {This.smoothscroll
to (0, 0); }} public void Onrequiretouchevent (MoTionevent event) {int x = (int) event.getx (); int y = (int) event.gety (); int scrollx = GETSCROLLX ();
LOG.D (TAG, x= + x + y= + y);
Switch (event.getaction ()) {case Motionevent.action_down: {int deltax = X-MLASTX;
SYSTEM.OUT.PRINTLN (Press the offset +deltax); if (!mscroller.isfinished ()) {mscroller.abortanimation ();} if (Monslidelistener!= null) {Monslidelistener.onslide (
this, onslidelistener.slide_status_start_scroll);
} break;
Case Motionevent.action_move: {int deltax = x-mlastx; int deltay = Y-mlasty;
System.out.println (offset +deltax);
if (Math.Abs (DeltaX) < Math.Abs (deltay) * TAN) {break;} int newscrollx = Scrollx-deltax; if (deltax!= 0) {if (Newscrollx < 0) {newscrollx = 0;} else if (Newscrollx > Mholderwidth) {newscrollx = Mholde
Rwidth;
} this.scrollto (NEWSCROLLX, 0);
} break;
Case MOTIONEVENT.ACTION_UP: {int newscrollx = 0; if (scrollx-mholderwidth * 0.75 > 0) {newscrollx = Mholderwidth;
} this.smoothscrollto (NEWSCROLLX, 0); if (Monslidelistener!= null) {Monslidelistener.onslide (this, newscrollx = 0?)
OnSlideListener.SLIDE_STATUS_OFF:OnSlideListener.SLIDE_STATUS_ON);
} break;
} Default:break;
} MLASTX = x;
Mlasty = y; } private void Smoothscrollto (int destx, int desty) {//slow scrolling to the specified position int scrollx = GETSCROLLX (); int delta = DESTX-SCROLLX
;
System.out.println (offset scrollx+scrollx);
System.out.println (offset difference delta+delta);
int a= Math.Abs (delta) * 3;
System.out.println (what meaning +a);
Mscroller.startscroll (SCROLLX, 0, Delta, 0, Math.Abs (Delta) * 3);
Invalidate (); @Override public void Computescroll () {if (Mscroller.computescrolloffset ()) {System.out.println () (current x position: +
Mscroller.getcurrx ());
System.out.println (current y position: +mscroller.getcurry ());
Scrollto (Mscroller.getcurrx (), Mscroller.getcurry ());
Postinvalidate (); }
}
}