NativeScript/tns-core-modules/application-settings/application-settings.ios.ts

import * as Common from "./application-settings-common";

import * as utils from "../utils/utils";

const userDefaults = NSUserDefaults.standardUserDefaults;

export function hasKey(key: string): boolean {
    Common.checkKey(key);

    return userDefaults.objectForKey(key) !== null;
}

// utils.ios.getters
export function getBoolean(key: string, defaultValue?: boolean): boolean {
    Common.checkKey(key);
    if (hasKey(key)) {
        return userDefaults.boolForKey(key);
    }

    return defaultValue;
}

export function getString(key: string, defaultValue?: string): string {
    Common.checkKey(key);
    if (hasKey(key)) {
        return userDefaults.stringForKey(key);
    }

    return defaultValue;
}

export function getNumber(key: string, defaultValue?: number): number {
    Common.checkKey(key);
    if (hasKey(key)) {
        return userDefaults.doubleForKey(key);
    }

    return defaultValue;
}

// setters
export function setBoolean(key: string, value: boolean): void {
    Common.checkKey(key);
    Common.ensureValidValue(value, "boolean");
    userDefaults.setBoolForKey(value, key);
}

export function setString(key: string, value: string): void {
    Common.checkKey(key);
    Common.ensureValidValue(value, "string");
    userDefaults.setObjectForKey(value, key);
}

export function setNumber(key: string, value: number): void {
    Common.checkKey(key);
    Common.ensureValidValue(value, "number");
    userDefaults.setDoubleForKey(value, key);
}

export function remove(key: string): void {
    Common.checkKey(key);
    userDefaults.removeObjectForKey(key);
}

export function clear(): void {
    userDefaults.removePersistentDomainForName(NSBundle.mainBundle.bundleIdentifier);
}

export function flush(): boolean {
    return userDefaults.synchronize();
}

export function getAllKeys(): Array<string> {
    return utils.ios.collections.nsArrayToJSArray(userDefaults.dictionaryRepresentation().allKeys);
}