import { IonicNativePlugin } from '@ionic-native/core';
/**
 * @name Mobile Accessibility
 * @description
 * This plugin exposes information on the status of various accessibility features of mobile operating systems, including, for example, whether a screen reader is running, invert colors is enabled, and the preferred scaling for text.
 * It also allows an application to send a string to be spoken by the screen reader, or a command to stop the screen reader from speaking.
 *
 * @usage
 * ```typescript
 * import { MobileAccessibility } from '@ionic-native/mobile-accessibility/ngx';
 *
 *
 * constructor(private mobileAccessibility: MobileAccessibility) { }
 *
 * ...
 *
 * if(this.mobileAccessibility.isScreenReaderRunningCallback();
 *
 * ```
 */
export declare class MobileAccessibilityOriginal extends IonicNativePlugin {
    MobileAccessibilityNotifications: {
        ANNOUNCEMENT: 'ANNOUNCEMENT';
        BOLD_TEXT_STATUS_CHANGED: 'BOLD_TEXT_STATUS_CHANGED';
        CLOSED_CAPTIONING_STATUS_CHANGED: 'CLOSED_CAPTIONING_STATUS_CHANGED';
        DARKER_SYSTEM_COLORS_STATUS_CHANGED: 'DARKER_SYSTEM_COLORS_STATUS_CHANGED';
        GRAYSCALE_STATUS_CHANGED: 'GRAYSCALE_STATUS_CHANGED';
        GUIDED_ACCESS_STATUS_CHANGED: 'GUIDED_ACCESS_STATUS_CHANGED';
        INVERT_COLORS_STATUS_CHANGED: 'INVERT_COLORS_STATUS_CHANGED';
        LAYOUT_CHANGED: 'LAYOUT_CHANGED';
        MONO_AUDIO_STATUS_CHANGED: 'MONO_AUDIO_STATUS_CHANGED';
        PAGE_SCROLLED: 'PAGE_SCROLLED';
        REDUCE_MOTION_STATUS_CHANGED: 'REDUCE_MOTION_STATUS_CHANGED';
        REDUCE_TRANSPARENCY_STATUS_CHANGED: 'REDUCE_TRANSPARENCY_STATUS_CHANGED';
        SCREEN_CHANGED: 'SCREEN_CHANGED';
        SCREEN_READER_STATUS_CHANGED: 'SCREEN_READER_STATUS_CHANGED';
        SPEAK_SCREEN_STATUS_CHANGED: 'SPEAK_SCREEN_STATUS_CHANGED';
        SPEAK_SELECTION_STATUS_CHANGED: 'SPEAK_SELECTION_STATUS_CHANGED';
        SWITCH_CONTROL_STATUS_CHANGED: 'SWITCH_CONTROL_STATUS_CHANGED';
        TOUCH_EXPLORATION_STATUS_CHANGED: 'TOUCH_EXPLORATION_STATUS_CHANGED';
    };
    /**
     * Makes an asynchronous call to native MobileAccessibility to determine if a screen reader is running.
     * @returns {Promise<boolean>}  A result method to receive the boolean result asynchronously from the native MobileAccessibility plugin.
     */
    isScreenReaderRunning(): Promise<boolean>;
    /**
     * An iOS-specific proxy for the MobileAccessibility.isScreenReaderRunning method
     * @returns {Promise<boolean>} A result method to receive the boolean result asynchronously from the native MobileAccessibility plugin.
     */
    isVoiceOverRunning(): Promise<boolean>;
    /**
     * An Android/Amazon Fire OS-specific proxy for the MobileAccessibility.isScreenReaderRunning method.
     * @returns {Promise<boolean>}  A result method to receive the boolean result asynchronously from the native MobileAccessibility plugin.
     */
    isTalkBackRunning(): Promise<boolean>;
    /**
     * On Android, this method returns true if ChromeVox is active and properly initialized with access to the text to speech API in the WebView.
     * If TalkBack is running but ChromeVox is not active, this method is useful to alert the user of a potential problem.
     * @returns {Promise<boolean>} Returns the result
     */
    isChromeVoxActive(): Promise<boolean>;
    /**
     *
     * @returns {Promise<boolean>} Returns the result
     */
    isBoldTextEnabled(): Promise<boolean>;
    /**
     *
     * @returns {Promise<boolean>} Returns the result
     */
    isClosedCaptioningEnabled(): Promise<boolean>;
    /**
     *
     * @returns {Promise<boolean>} Returns the result
     */
    isDarkerSystemColorsEnabled(): Promise<boolean>;
    /**
     *
     * @returns {Promise<boolean>} Returns the result
     */
    isGrayscaleEnabled(): Promise<boolean>;
    /**
     *
     * @returns {Promise<boolean>} Returns the result
     */
    isGuidedAccessEnabled(): Promise<boolean>;
    /**
     *
     * @returns {Promise<boolean>} Returns the result
     */
    isInvertColorsEnabled(): Promise<boolean>;
    /**
     *
     * @returns {Promise<boolean>} Returns the result
     */
    isMonoAudioEnabled(): Promise<boolean>;
    /**
     *
     * @returns {Promise<boolean>} Returns the result
     */
    isReduceMotionEnabled(): Promise<boolean>;
    /**
     *
     * @returns {Promise<boolean>} Returns the result
     */
    isReduceTransparencyEnabled(): Promise<boolean>;
    /**
     *
     * @returns {Promise<boolean>} Returns the result
     */
    isSpeakScreenEnabled(): Promise<boolean>;
    /**
     *
     * @returns {Promise<boolean>} Returns the result
     */
    isSpeakSelectionEnabled(): Promise<boolean>;
    /**
     *
     * @returns {Promise<boolean>} Returns the result
     */
    isSwitchControlRunning(): Promise<boolean>;
    /**
     *
     * @returns {Promise<boolean>} Returns the result
     */
    isTouchExplorationEnabled(): Promise<boolean>;
    /**
     *
     * * @returns {Promise<number>} Returns the result
     */
    getTextZoom(): Promise<number>;
    /**
     * @param textZoom {number} A percentage value by which text in the WebView should be scaled.
     */
    setTextZoom(textZoom: number): void;
    /**
     *
     */
    updateTextZoom(): void;
    /**
     * A Boolean value which specifies whether to use the preferred text zoom of a default percent value of 100.
     * @param value {boolean} Returns the result
     */
    usePreferredTextZoom(value: boolean): void;
    /**
     * Posts a notification with a string for the screen reader to announce if it is running.
     * @param mobileAccessibilityNotification {any}
     * @param value {string} A string to be announced by a screen reader.
     * @returns {Promise<boolean>} Returns the result
     */
    postNotification(mobileAccessibilityNotification: any, value: string): Promise<boolean>;
    /**
     * Speaks a given string through the screenreader. On Android, if ChromeVox is active, it will use the specified queueMode and properties.
     * @param value {string}
     * @param queueMode {mumber}
     * @param properties {any}
     */
    speak(value: string, queueMode?: number, properties?: any): void;
    /**
     * Stops speech.
     */
    stop(): void;
}

export declare const MobileAccessibility: MobileAccessibilityOriginal;