Randomly place objects in an activity

Question

So I'm new to java, and I have the basics of object placement down. I'm trying to design an app in which 5 objects are randomly placed in a certain activity. How would I go about randomly placing these objects?

Thanks!

what are these objects, are they simple images(bitmaps) or some views ? — Triode, Jan 18 '14 at 05:53

score 1 · Answer 1 · answered Jan 18 '14 at 04:27

1

Create a custom view that overrides the onDraw method.

Use Math.random or some other random number generating scheme to determine the x and y values of the bitmaps you are going to draw.

Then use Canvas.drawBitmap

answered Jan 18 '14 at 04:27

eski

7,917
1
23
34

score 0 · Answer 2 · edited May 23 '17 at 11:49

you can programmatically add your buttons to your activity with random position without using xml layout and here an example set buttons in activity

 LinearLayout ll = new LinearLayout(this);
 ll.setOrientation(LinearLayout.VERTICAL);

 LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
 Button okButton=new Button(this);
 okButton.setText("some text");
 Random r  = new Random();
 okButton.setPadding(r.nextInt(), r.nextInt(), r.nextInt(), r.nextInt())
 ll.addView(okButton, layoutParams);

and here good thread to look at

Set margins in a LinearLayout programmatically

Randomly place objects in an activity

2 Answers2