CHRONOMETER IN ANDROID
Chronometer in Android is useful to implement a simple Timer. It is a subclass of TextView however holds a countdown or count up timer.
Steps to implement chronometer in Android are given below
First step is to add some strings in strings xml
Write strings given below
Next step to design layout
Add 4 buttons
Set constraints and I’d for buttons
First button text start
Second stop
Third button apply format
Fourth button for clear format
Add chronometer in activity main xml-
In main activity
Write code given below
view.onclicklistener
Override fun on create(saved instance saved:bundle?){
super.on create(saved instance state)
set content view(R.layout.activity_main
Btn_clear_format.setonclicklistener
btn_start.setonclicklistener
btn_stop.setonclicklistener
btn_apply_format.setonclicklistener
timer.setonclicklistener{
Toast.maketext(context this,main activity,text “tick happened”,Toast.LENGTH_LONG).show()
}
override fun on click(p0:view?}{
when(p0?.Id)
{
R.id.btn_stop->timer.stop()
R.id.btn_start->timer.start()
R.id.btn_format->timer.format()=”timer is running:
else-> timer.format=null
Finish