TFT 3.2 inch mega relay control

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hi
i'm trying program arduino control relay tft screen
so there 2 colors on tft screen half red(relay off) , other half green(relay on) want press green light turn relay , red light turn off relay.
i got controlling relay idk how how make go on when press green light cause @ moment when press green light, can turn relay on , when press again goes off. tried make colors 1 thing turn on when press green color or off when press red color can turn on , off both buttons on tft.
 if guyz can me appreciate it.
thanks and  im sorry english , i'm new arduino .
i got mega2560
3.2 inch ili9341 tft lcd
and tft lcd mega shield v2.2.


#include <touchscreen.h>


//
#include <utouch.h>
#include <utft.h>

#define black   0x0000
#define blue    0x001f
#define red     0xf820
#define green   0x07e0
#define cyan    0x07ff
#define magenta 0xf81f
#define yellow  0xffe0
#define white   0xffff
// declare fonts using



int relay = 8;


// uncomment next line arduino 2009/uno
utft myglcd(ili9327,38,39,40,41);   // remember change model parameter suit display module!
utouch  mytouch( 6, 5, 4, 3, 2);

int x, y;

void setup()
{
  myglcd.initlcd();
  myglcd.clrscr();
  mytouch.inittouch();
  mytouch.inittouch(landscape);
  mytouch.setprecision(prec_medium);
  onoffbutton();
 
serial.begin(9600);
  pinmode(relay, output);       

}
void onoffbutton()
{
 //on button

 myglcd.setcolor(green);
  myglcd.fillrect(0,0,240,240);
  myglcd.setcolor(black);
myglcd.drawroundrect(0,0,240,240);

  //off button
 
   myglcd.setcolor(red);
  myglcd.fillrect(240,0,399,240);
  myglcd.setcolor(black);
myglcd.drawroundrect(240,0,399,240);

}
void loop()
{




if (mytouch.dataavailable()){
  mytouch.read();
  x=mytouch.getx();
  y=mytouch.gety();
  if ((x>=0) && (x<=240) && (y>=0) && (y<=240));

 digitalwrite(relay,0);

}



  // off button
 if (mytouch.dataavailable()){
  mytouch.read();
  x=mytouch.getx();
  y=mytouch.gety();


 digitalwrite(relay,1);

 }

}







you not testing right conditions in area.

code: [select]



  // off button
 if (mytouch.dataavailable()){
  mytouch.read();
  x=mytouch.getx();
  y=mytouch.gety();


 digitalwrite(relay,1);



you need test region of screen touched off condition.

add
code: [select]

if ((x>=240) && (x<=390) && (y>=0)&& (y<=240));

before

code: [select]

 digitalwrite(relay,1);


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