You're welcome :-) A bonus would be to get rid of the following line somehow: AbsoluteLayout.LayoutParams p = new AbsoluteLayout.LayoutParams(....);
because this creates many new objects while you scroll which have to be garbage collected afterwards. Good luck! Peli www.openintents.org www.openintents.biz On 10 Jan., 10:39, "kaushik sur" <[email protected]> wrote: > hi Peli > > thank you very much for giving me the correct direction. > > regards > Kaushik > > On Fri, Jan 9, 2009 at 7:58 PM, Peli <[email protected]> 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" <[email protected]> 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 <[email protected]> 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" <[email protected]> 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 <[email protected]> > > > > wrote: > > > > > > > Refer Launcher code in the source tree. > > > > > > > -M > > > > > > > On Jan 8, 8:13 am, "kaushik.siso" <[email protected]> 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 --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. 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