2018-05-23 08:32:46 -04:00

37 lines
989 B
Java

package org.thoughtcrime.securesms.util;
import android.os.Handler;
/**
* A class that will throttle the number of runnables executed to be at most once every specified
* interval.
*
* Useful for performing actions in response to rapid user input, such as inputting text, where you
* don't necessarily want to perform an action after <em>every</em> input.
*
* See http://rxmarbles.com/#debounce
*/
public class Debouncer {
private final Handler handler;
private final long threshold;
/**
* @param threshold Only one runnable will be executed via {@link #publish(Runnable)} every
* {@code threshold} milliseconds.
*/
public Debouncer(long threshold) {
this.handler = new Handler();
this.threshold = threshold;
}
public void publish(Runnable runnable) {
handler.removeCallbacksAndMessages(null);
handler.postDelayed(runnable, threshold);
}
public void clear() {
handler.removeCallbacksAndMessages(null);
}
}