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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