hi Peli
thank you very much for giving me the correct direction.
regards
Kaushik
On Fri, Jan 9, 2009 at 7:58 PM, Peli <peli0...@googlemail.com> wrote:
>
> Introduce new member variables of your class:
> int mOffsetX;
> int mOffsetY;
>
>
> Then below you do something like:
>
> if ( action == MotionEvent.ACTION_DOWN ) {
> System.out.println("X="+mCurX+" y="+mCurY);
> this.setText("x: " + mCurX + ",y: " + mCurY );
>
> mOffsetX = mCurX - 10; // 10 was the initial coordinate
> mOffsetY = mCurY - 10;
>
> } else if ( action == MotionEvent.ACTION_MOVE ) {
> System.out.println("X="+mCurX+" y="+mCurY);
> this.setText("x: " + mCurX + ",y: " + mCurY );
> AbsoluteLayout.LayoutParams p = new
> AbsoluteLayout.LayoutParams
> (AbsoluteLayout.LayoutParams.WRAP_CONTENT,
> AbsoluteLayout.LayoutParams.WRAP_CONTENT,this.getScrollX()+
> mCurX + mOffsetX,
> this.getScrollY()+mCurY + mOffsetY); //// Here you add the
> offset values.
> this.setLayoutParams (p);
>
> }
>
> I hope this helps as a pointer. Note that after you placed the object
> to a new position, you have to remember the new coordinates (instead
> of (10,10) where you started originally).
>
> ACTION_DOWN is called when you click the mouse button, ACTION_MOVE is
> called while you click and drag, and ACTION_UP is called when you
> release the mouse button. Replace mouse by finger on the actual
> device :-)
>
> I hope this is what you meant.
>
> Peli
> www.openintents.org
>
>
> On Jan 9, 2:46 pm, "kaushik sur" <kaushik....@gmail.com> wrote:
> > hi
> >
> > Can you please illustrate the scenarios of the constants
> > ACTION_MOVE,ACTION_DOWN,ACTION_UP ?
> >
> > regards
> > Kaushik
> >
> > On Fri, Jan 9, 2009 at 6:22 PM, Peli <peli0...@googlemail.com> wrote:
> >
> > > what you have to do is, remember the coordinates that you get with the
> > > ACTION_DOWN event.
> >
> > > Remember the distance (difference) between those coordinates and the
> > > original coordinates of your image (call that offsetX and offsetY),
> > > and subsequently in ACTION_MOVE always add those offset values.
> >
> > > Peli
> >
> > > On Jan 9, 11:36 am, "kaushik sur" <kaushik....@gmail.com> wrote:
> > > > Hi Peli
> >
> > > > here i attach my code, to be added , i have ressolved the issue of
> double
> > > > image by getting rawX() value of the event , and setting my absolute
> > > layout
> > > > according to that.
> > > > but here i get a unique problem, whenever i click the button and try
> to
> > > drag
> > > > it, the mouse tip comes to a certain pixels above from the topleft
> corner
> > > of
> > > > the button,like a offset distance,if you run the code on the emulator
> u
> > > wil
> > > > find this problem.
> > > > can anyone help to solve this?
> >
> > > > package com.google.android.samples.view.draganddrop;
> >
> > > > import android.app.Activity;
> > > > import android.content.Context;
> > > > import android.graphics.Canvas;
> > > > import android.os.Bundle;
> > > > import android.view.MotionEvent ;
> > > > import android.view.View;
> > > > import android.view.View.OnClickListener;
> > > > import android.widget.AbsoluteLayout;
> > > > import android.widget.Button;
> > > > import android.widget.Toast;
> >
> > > > public class Drag_And_Drop extends Activity {
> > > > /** Called when the activity is first created. */
> >
> > > > @Override
> > > > public void onCreate(Bundle icicle) {
> > > > super.onCreate(icicle);
> >
> > > > MyView tx = new MyView(this);
> > > > tx.setText("Drag Me");
> > > > AbsoluteLayout l = new AbsoluteLayout(this);
> >
> > > > AbsoluteLayout.LayoutParams p = new AbsoluteLayout.LayoutParams(
> > > > AbsoluteLayout.LayoutParams.WRAP_CONTENT,
> > > > AbsoluteLayout.LayoutParams.WRAP_CONTENT,10,10);
> > > > l.addView(tx,p);
> > > > setContentView(l);
> >
> > > > }
> >
> > > > class MyView extends Button
> > > > {
> > > > public MyView(Context c){
> > > > super(c);
> >
> > > > }
> >
> > > > @Override
> > > > public boolean dispatchTouchEvent(MotionEvent event) {
> > > > int mCurX=(int)event.getRawX();
> > > > int mCurY=(int)event.getRawY();;
> > > > System.out.println("scrollx "+this.getScrollX());
> > > > int action = event.getAction();
> > > > if ( action == MotionEvent.ACTION_MOVE ) {
> > > > System.out.println("X="+mCurX+" y="+mCurY);
> > > > this.setText("x: " + mCurX + ",y: " + mCurY );
> > > > AbsoluteLayout.LayoutParams p = new
> > > >
> AbsoluteLayout.LayoutParams(AbsoluteLayout.LayoutParams.WRAP_CONTENT,
> > > > AbsoluteLayout.LayoutParams.WRAP_CONTENT,this.getScrollX()+
> mCurX,
> > > > this.getScrollY()+mCurY);
> > > > this.setLayoutParams (p);
> >
> > > > }
> > > > return true;
> > > > }
> >
> > > > @Override
> > > > public void draw(Canvas canvas) {
> > > > // TODO Auto-generated method stub
> > > > super.draw(canvas);
> >
> > > > }
> >
> > > > }
> >
> > > > }
> >
> > > > #####main.xml#####
> >
> > > > <?xml version=*"1.0"* encoding=*"utf-8"*?>
> >
> > > > <LinearLayout xmlns:android=*"
> http://schemas.android.com/apk/res/android
> > > "
> > > > *
> >
> > > > android:orientation=*"vertical"
> > > > *
> >
> > > > android:layout_width=*"fill_parent"
> > > > *
> >
> > > > android:layout_height=*"fill_parent"
> > > > *
> >
> > > > <TextView
> >
> > > > android:layout_width=*"fill_parent"*
> >
> > > > android:layout_height=*"wrap_content"*
> >
> > > > android:text=*"@string/hello"
> > > > *
> >
> > > > />
> >
> > > > <Button
> >
> > > > android:id=*"@+id/button"
> > > > *
> >
> > > > android:layout_width=*"fill_parent"
> > > > *
> >
> > > > android:layout_height=*"wrap_content"
> > > > *
> >
> > > > android:text=*"start transfer"
> > > > *
> >
> > > > />
> >
> > > > </LinearLayout>
> >
> > > > regards
> > > > Kaushik
> >
> > > > On Thu, Jan 8, 2009 at 11:23 PM, Dan Raaka <micromys...@gmail.com>
> > > wrote:
> >
> > > > > Refer Launcher code in the source tree.
> >
> > > > > -M
> >
> > > > > On Jan 8, 8:13 am, "kaushik.siso" <kaushik....@gmail.com> wrote:
> > > > > > hi
> >
> > > > > > i want to know how can i enbale Drag and drop feature in android.
> > > > > > suppose i have a image,which are to be dragged and dropped on
> another
> > > > > > result and it will start a new activity.
> > > > > > i seek your help to get a head-start atleast.
> >
> > > > > > regards
> > > > > > k...@sis
> >
>
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