package cn.com.magnity.magnitycx.sdk;

import java.util.ArrayList;

/* loaded from: classes.dex */
public abstract class Observable<T> {
    protected final ArrayList<T> observers_ = new ArrayList<>();

    public void registerObserver(T observer) {
        if (observer != null) {
            synchronized (this.observers_) {
                if (!this.observers_.contains(observer)) {
                    this.observers_.add(observer);
                }
            }
        }
    }

    public void unregisterObserver(T observer) {
        if (observer != null) {
            synchronized (this.observers_) {
                int index = this.observers_.indexOf(observer);
                if (index != -1) {
                    this.observers_.remove(index);
                }
            }
        }
    }

    public void unregisterAll() {
        synchronized (this.observers_) {
            this.observers_.clear();
        }
    }
}