How Do I Position Custom Dialog at specific Coordi

I'm a noob to android development and I am trying to figure out how to display the NewQuickAction3D popup dialog at a specific coordinate in a view. I am integrating the popup with this tutorial. Essentially, I want to use the popup dialog to display data where the users touch instead painting on the canvas using "infoview" Currently, the popup displays at the top&center of the view that I anchor it to. How can i make it display a particular coordinate? Any help is greatly appreciated.

MY CODE

public void updateMsg(String t_info, float t_x, float t_y, int t_c){
     infoView.updateInfo(t_info, t_x, t_y, t_c); //Infoview paints to on a specific coordinate
     quickAction.show(infoView); //How do I use the t_x & t_y coordinates here instead of just anchoring infoview

EDIT

public void updateMsg(String t_info, float t_x, float t_y, int t_c){
     infoView.updateInfo(t_info, t_x, t_y, t_c);
     WindowManager.LayoutParams wmlp = quickAction.getWindow().getAttributes(); //Error here getting window attributes
     wmlp.gravity = Gravity.TOP | Gravity.LEFT;
         wmlp.x = 100;   //x position
         wmlp.y = 100;   //y position
     quickAction.show(infoView);
}

Override onTouch() of your view

AlertDialog dialog;

@Override
public boolean onTouchEvent(MotionEvent event) {
float x = event.getX();
float y = event.getY();

switch (event.getAction()) {
    case MotionEvent.ACTION_DOWN:

        showDialog();  // display dialog
        break;
    case MotionEvent.ACTION_MOVE:
        if(dialog!=null)
          dialog.dismiss(); 
         // do something
        break;
    case MotionEvent.ACTION_UP:
        // do somethig
        break;
}
return true;
} 
 public void showDialog()
  {

         AlertDialog.Builder builder = new AlertDialog.Builder(FingerPaintActivity.this);
         dialog = builder.create();
         dialog.setTitle("my dialog");
         dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
         WindowManager.LayoutParams wmlp = dialog.getWindow().getAttributes();
     wmlp.gravity = Gravity.TOP | Gravity.LEFT;
         wmlp.x = 100;   //x position
         wmlp.y = 100;   //y position
     dialog.show();
  }

Even to draw user touches the screen then also dialog is displayed. so dismiss dialog in on move.