import { View } from 'react-native';
/**
 * Shape produced by `measureInWindow` plus the derived values the
 * dropdown modal layout needs (top-vs-bottom extents, full-screen
 * flag).
 */
export interface TriggerPosition {
    /** True when the dropdown renders as a full-screen modal (landscape / `mode="modal"`). */
    isFull: boolean;
    width: number;
    /** Y of the top of the open list relative to the screen. */
    top: number;
    /** Y of the bottom of the open list relative to the screen. */
    bottom: number;
    left: number;
    /** Measured height of the trigger itself. */
    height: number;
}
/**
 * Encapsulates the trigger-measurement dance both Dropdown and
 * MultiSelect perform identically:
 *
 * - Maintains the `View` ref attached to the trigger.
 * - Re-measures via `measureInWindow` on demand (open, keyboard,
 *   layout).
 * - Caches the measurement; drops it on close so reopening waits for
 *   a fresh measurement before mounting the Modal (upstream #198,
 *   #330, #298).
 * - Applies the `isInsideModal` statusBar offset adjustment
 *   (upstream #362).
 * - Handles tablet / landscape / `mode="auto"` full-screen rules.
 *
 * @param mode - The current `mode` prop.
 * @param isInsideModal - Whether the dropdown is rendered inside an
 *   RN `<Modal>`.
 * @param visible - Whether the list is currently open. When this flips
 *   to `false`, the cached position is dropped.
 */
export declare function useTriggerMeasurement(mode: 'default' | 'modal' | 'auto', isInsideModal: boolean, visible: boolean): {
    /** Ref to attach to the trigger's outer `<View>`. */
    ref: import("react").RefObject<View>;
    /** Last measurement (undefined before the first measure or after close). */
    position: TriggerPosition | undefined;
    /** Re-measure the trigger; the callback returned is stable across renders with the same `mode`/`isInsideModal`/orientation. */
    measure: () => void;
    /** Current window width in dp. */
    windowWidth: number;
    /** Current window height in dp. */
    windowHeight: number;
    /** `'PORTRAIT' | 'LANDSCAPE'`. */
    orientation: string;
};
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