/**
 * Notification Center for React Native
 * Mimics the Swift NotificationCenter functionality
 */
export interface NotificationInfo {
    [key: string]: any;
}
export interface NotificationObserver {
    name: string;
    callback: (info: NotificationInfo) => void;
}
export declare class NotificationCenter {
    private static instance;
    private observers;
    static getInstance(): NotificationCenter;
    addObserver(name: string, callback: (info: NotificationInfo) => void): void;
    removeObserver(name: string, callback?: (info: NotificationInfo) => void): void;
    post(name: string, object?: any, userInfo?: NotificationInfo): void;
}
export declare const NotificationNames: {
    readonly toneListenSpectrumDidUpdate: "toneListenSpectrumDidUpdate";
    readonly toneListenFullSpectrumDidUpdate: "toneListenFullSpectrumDidUpdate";
    readonly toneListenAmplitudeDidUpdate: "toneListenAmplitudeDidUpdate";
    readonly toneListenFrequencyDidUpdate: "toneListenFrequencyDidUpdate";
    readonly toneListenSequenceDidUpdate: "toneListenSequenceDidUpdate";
};
//# sourceMappingURL=NotificationCenter.d.ts.map