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Debouncer class will allow to avoid fast clicking into views
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import android.support.v4.util.LongSparseArray; | |
import javax.inject.Inject; | |
/** | |
* Debouncer class will allow to avoid fast clicking into views | |
* | |
* @author Saul Diaz | |
*/ | |
public class Debouncer { | |
/** | |
* Debouncing threshold | |
*/ | |
static final long DEBOUNCING_THRESHOLD = 1000; | |
/** | |
* Debouncing SparseArray for absorbing the debouncing threshold | |
* by Anderwebs | |
*/ | |
final LongSparseArray<Long> debouncingMap; | |
/** | |
* Time provider to obtain when the clicks are done | |
*/ | |
TimeProvider timeProvider; | |
/** | |
* Creates a new instance of the Debouncer | |
* | |
* @param timeProvider | |
*/ | |
@Inject | |
public Debouncer(TimeProvider timeProvider) { | |
this.timeProvider = timeProvider; | |
debouncingMap = new LongSparseArray<>(); | |
} | |
/** | |
* Absorbs the bouncing of fast clicking | |
* | |
* @param id id of the View | |
* @return TRUE if it is first bounce, false for possible rebounds | |
*/ | |
public boolean debounce(int id) { | |
long time = timeProvider.getCurrentTimeMillis(); | |
boolean result = !(debouncingMap.indexOfKey(id) > -1 && (time - debouncingMap.get(id) < DEBOUNCING_THRESHOLD)); | |
debouncingMap.put(id, time); | |
return result; | |
} | |
} |
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