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    <p>/** * @author rajeshcp */</p> <pre><code>public class SimpleDrag extends View { private Paint mPaint; private Rect mRect; /** * @param context * @return of type SimpleDrag * Constructor function * @since Feb 19, 2013 * @author rajeshcp */ public SimpleDrag(Context context) { super(context); init(); } /** * @param context * @param attrs * @return of type SimpleDrag * Constructor function * @since Feb 19, 2013 * @author rajeshcp */ public SimpleDrag(Context context, AttributeSet attrs) { super(context, attrs); init(); } /** * @param context * @param attrs * @param defStyle * @return of type SimpleDrag * Constructor function * @since Feb 19, 2013 * @author rajeshcp */ public SimpleDrag(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); init(); } /* (non-Javadoc) * @see android.view.View#onDraw(android.graphics.Canvas) * @since Feb 19, 2013 * @author rajeshcp */ @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); canvas.drawColor(Color.BLUE, PorterDuff.Mode.CLEAR); if( mRect != null ) { mPaint.setColor(Color.RED); canvas.drawRect(mRect, mPaint); } } private void init() { mRect = new Rect(0, 0, 50, 50); mPaint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG | Paint.ANTI_ALIAS_FLAG); } private Point mTouchPoint; /* (non-Javadoc) * @see android.view.View#onTouchEvent(android.view.MotionEvent) * @since Feb 19, 2013 * @author rajeshcp */ @Override public boolean onTouchEvent(MotionEvent event) { final int action = event.getAction(); if( action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_DOWN) { mTouchPoint = new Point((int)event.getX(), (int)event.getY()); if( !mRect.contains(mTouchPoint.x, mTouchPoint.y) ) { return false; } } if( action == MotionEvent.ACTION_MOVE ) { final Point curretPoint = new Point((int)event.getX(), (int)event.getY()); int xMoved = curretPoint.x - mTouchPoint.x; int yMoved = curretPoint.y - mTouchPoint.y; mRect.set(mRect.left + xMoved, mRect.top + yMoved, mRect.right + xMoved, mRect.bottom + yMoved); mTouchPoint = curretPoint; invalidate(); } return true; } } </code></pre> <p>Call Invalidate when ever you want onDraw method to get called. </p>
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    1. COthnkz. it worked but only in case of ACTION_DOWN. whatever change mentioning in ACTION_DOWN is redrawing when just touched on the drawn object(not even moved).why its like that?What may be the reason?
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    2. COWhat you really wanna do please explain
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    3. COon moving up it should move up and similarly in case of down.But what happened here is whenever touch the object it is redrawing as per MotionEvent.ACTION_DOWN.....In switch case MotionEvent.ACTION_DOWN://some code like some change in coordinate values...its working perfectly as you mentioned way.But in case MotionEvent.ACTION_UP / MotionEvent.ACTION_MOVE when gave some code(changed coordinate values) it didnt worked. Same code i just tried with MotionEvent.ACTION_DOWN it worked there..this is the problem
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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