android - How to make text on button appear and disappear continualy -

i have button want text appear 1 second disappear 1 second, loop 6 seconds, here tried:

for(int = 0 ; < 6 ; i++) {     button.settextsize(18);     try {         thread.sleep(1000);     } catch (interruptedexception e) {         e.printstacktrace();     }     button.settextsize(0);     try {         thread.sleep(1000);     } catch (interruptedexception e) {         e.printstacktrace();     } } 

• first appear button's text size became 36 instead of 18,

• second is not act expected, never show text,

• note: text size start 0.

how can achieve this?

okey suggested want blink textview, here can do.

create on folder under res called "anim", create 1 xml file under

blink.xml , copy code in it.

<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <alpha      android:fromalpha="0.0"      android:toalpha="1.0"      android:duration="1000"       android:repeatmode="reverse"      android:repeatcount="infinite" />  </set> 

now in java class apply animation textview

animation anim = animationutils.loadanimation(getactivity(),                     r.anim.blink); yourtextview.startanimation(anim); 

done.