Android: Randomly swap buttons positions to predefined positions

[Philip Bayston]

Hi, I'm having trouble working out how to implement an idea I have had. I have 9 buttons number 1,2,3... and so on. The 9 buttons are layed out as if it is a three by three grid. I need to keep this layout but I want to swap the images around the predefined locations for example the layout of the buttons might be like so:

1 2 3
4 5 6
7 8 9

but upon button press the layout would randomly swap keeping the square shape and may look like this:
9 1 5
7 8 3
2 6 4

each button press would randomly swap the buttons around keeping the above structure.

I understand how to set button position programmatically but yet to figure out away to achieve what I want or at least efficiently. This is my class so far for setting the button location which all it does is set images in totally random places:

public void butSwap(){

            Random r = new Random();
            Random r1 = new Random();
            Random r2 = new Random();
            Random r3 = new Random();
            Random r4 = new Random();
            Random r5 = new Random();
            Random r6 = new Random();
            Random r7 = new Random();
            Random r8 = new Random();

            int x = r.nextInt(150);
            int y = r.nextInt(150);

            int x1 = r1.nextInt(150);;
            int y1 = r1.nextInt(150);

            int x2 = r2.nextInt(150);
            int y2 = r2.nextInt(150);

            int x3 = r3.nextInt(150);
            int y3 = r3.nextInt(150);

            int x4 = r4.nextInt(150);
            int y4 = r4.nextInt(150);

            int x5 = r5.nextInt(150);
            int y5 = r5.nextInt(150);

            int x6 = r6.nextInt(150);
            int y6 = r6.nextInt(150);

            int x7 = r7.nextInt(150);
            int y7 = r7.nextInt(150);

            int x8 = r8.nextInt(150);
            int y8 = r8.nextInt(150);

            one.setX(x);  
            one.setY(y);

            two.setX(x1);  
            two.setY(y1);

            three.setX(x2);  
            three.setY(y2);

            four.setX(x3);  
            four.setY(y3);

            five.setX(x4);  
            five.setY(y4);

            six.setX(x5);  
            six.setY(y5);

            seven.setX(x6);  
            seven.setY(y6);

            eight.setX(x7);  
            eight.setY(y7);

            nine.setX(x8);  
            nine.setY(y8);


        }

A different idea i have sets the images location corretly but keeps it static as I haven't figured out how to combine the random without breaking my design plan.:

public void butSwap(){
			int x = 850; 
			int y = 1300;
			
			int x1 = 850;
			int y1 = 900;
			
			int x2 =850;
			int y2 =500;
			
			int x3 = 50;
			int y3 = 900;
			
			int x4 = 50;
			int y4 = 500;
			
			int x5 = 50;
			int y5 = 1300;
			
			int x6 = 450;
			int y6 = 500;;
			
			int x7 = 450;
			int y7 = 900;
			
			int x8 = 450;
			int y8 = 1300;
			
			 
	


			one.setX(x);  
            one.setY(y);

            two.setX(x1);  
            two.setY(y1);

            three.setX(x2);  
            three.setY(y2);

            four.setX(x3);  
            four.setY(y3);

            five.setX(x4);  
            five.setY(y4);

            six.setX(x5);  
            six.setY(y5);

            seven.setX(x6);  
            seven.setY(y6);

            eight.setX(x7);  
            eight.setY(y7);

            nine.setX(x8);  
            nine.setY(y8);
			
			
		}

Guidance on this would be great, hopefully I have explained my goal clear enough. I can find loads on randomly moving images and button but not cycling them through predefined coords