how to set zoom in zoom out and redsuce defualt zoom size?
<p>i follow this tutorial <a href="http://www.allappsdevelopers.com/TopicDetail.aspx?TopicID=c16ed3b4-b422-43ba-b595-ee8e21dd1854" rel="nofollow">http://www.allappsdevelopers.com/TopicDetail.aspx?TopicID=c16ed3b4-b422-43ba-b595-ee8e21dd1854</a> problem is when i capture image is default show is size so big but all zoom in zoom out how to i set is default size to normal image size??</p>

<pre><code>   public boolean onTouch(View v, MotionEvent event) {

       ImageView view = (ImageView) v;

       view.setScaleType(ImageView.ScaleType.MATRIX);

       float scale;



       // Dump touch event to log

       dumpEvent(event);



       // Handle touch events here...

       switch (event.getAction() &amp; MotionEvent.ACTION_MASK) {



       case MotionEvent.ACTION_DOWN: //first finger down only

          savedMatrix.set(matrix);

          start.set(event.getX(), event.getY());

          Log.d(TAG, "mode=DRAG" );

          mode = DRAG;

          break;

       case MotionEvent.ACTION_UP: //first finger lifted

       case MotionEvent.ACTION_POINTER_UP: //second finger lifted

          mode = NONE;

          Log.d(TAG, "mode=NONE" );

          break;

       case MotionEvent.ACTION_POINTER_DOWN: //second finger down

          oldDist = spacing(event);

          Log.d(TAG, "oldDist=" + oldDist);

          if (oldDist &gt; 5f) {

             savedMatrix.set(matrix);

             midPoint(mid, event);

             mode = ZOOM;

             Log.d(TAG, "mode=ZOOM" );

          }

          break;



       case MotionEvent.ACTION_MOVE:

          if (mode == DRAG) { //movement of first finger

             matrix.set(savedMatrix);

             if (view.getLeft() &gt;= -392){

                matrix.postTranslate(event.getX() - start.x, event.getY() -  
    start.y);

             }

          }

          else if (mode == ZOOM) { //pinch zooming

             float newDist = spacing(event);

             Log.d(TAG, "newDist=" + newDist);

             if (newDist &gt; 5f) {

                matrix.set(savedMatrix);

                scale = newDist / oldDist; /*thinking i need to play around  
    with this value to limit it*/

                matrix.postScale(scale, scale, mid.x, mid.y);

             }

          }

          break;

       }



       // Perform the transformation

       view.setImageMatrix(matrix);



       return true; // indicate event was handled

    }



    private float spacing(MotionEvent event) {

       float x = event.getX(0) - event.getX(1);

       float y = event.getY(0) - event.getY(1);

       return FloatMath.sqrt(x * x + y * y);

    }



    private void midPoint(PointF point, MotionEvent event) {

       float x = event.getX(0) + event.getX(1);

       float y = event.getY(0) + event.getY(1);

       point.set(x / 2, y / 2);

    }



    /** Show an event in the LogCat view, for debugging */

    private void dumpEvent(MotionEvent event) {

       String names[] = { "DOWN" , "UP" , "MOVE" , "CANCEL" , "OUTSIDE" ,

          "POINTER_DOWN" , "POINTER_UP" , "7?" , "8?" , "9?" };

       StringBuilder sb = new StringBuilder();

       int action = event.getAction();

       int actionCode = action &amp; MotionEvent.ACTION_MASK;

       sb.append("event ACTION_" ).append(names[actionCode]);

       if (actionCode == MotionEvent.ACTION_POINTER_DOWN

             || actionCode == MotionEvent.ACTION_POINTER_UP) {

          sb.append("(pid " ).append(

          action &gt;&gt; MotionEvent.ACTION_POINTER_ID_SHIFT);

          sb.append(")" );

       }

       sb.append("[" );

       for (int i = 0; i &lt; event.getPointerCount(); i++) {

          sb.append("#" ).append(i);

          sb.append("(pid " ).append(event.getPointerId(i));

          sb.append(")=" ).append((int) event.getX(i));

          sb.append("," ).append((int) event.getY(i));

          if (i + 1 &lt; event.getPointerCount())

             sb.append(";" );

       }

       sb.append("]" );

       Log.d(TAG, sb.toString());

    }
</code></pre>
