java - Flashlight blink on button click in android -

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i developing flashlight application in trying add blink functionality on button click. code found is:

string mystring = "0101010101"; long blinkdelay 50; //delay in ms (int = 0; < mystring.length(); i++) {    if (mystring.charat(i) == '0') {       params.setflashmode(parameters.flash_mode_on);    } else {       params.setflashmode(parameters.flash_mode_off);    }    try {       thread.sleep(blinkdelay);    } catch (interruptedexception e) {       e.printstacktrace();    } }

but code turns off flashlight after few blinks. how can start flashlight blink on button click , stop unless click again? help?

it's controlled string length loop break after count of becomes greater last index. use while loop if want blink flash continuously. can use 1 boolean variable switch between on off. , boolean in while condition break loop when button clicked





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