CODEWITHSUNDEEP
androidkotlinandroid-layoutscrollviewandroid-scrollview
aherman
aherman

Reputation: 960

Android ScrollView setOnScrollChangeListener triggers multiple times too fast

I have implemented scroll view and I need to detect the visibility of the view when scrolling and trigger that event once per screen initialization. But, at random times, I get it triggered multiple times in a very short time (a few ms), and it messes up with my logic in VM.

Is there a way to restrict this triggering and make it trigger once every 100ms or something similar?

Upvotes: 1

Views: 439

Answers (1)

Ivo
Ivo

Reputation: 23234

An easy way to do this is something like this right where the trigger happens

if (System.currentTimeMillis() - lastTime < 100) 
    return
else {
    lastTime = System.currentTimeMillis()
    // rest of your code
}

where lastTime is just some variable you keep in your class

Upvotes: 1

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