awesome-cordova-plugins/src/@ionic-native/plugins/app-launcher/index.ts

import { Injectable } from '@angular/core';
import { Cordova, IonicNativePlugin, Plugin } from '@ionic-native/core';

export interface AppLauncherOptions {
  uri?: string;
  packageName?: string;
}

/**
 * @name App Launcher
 * @description
 * Simple Cordova plugin to see if other apps are installed and launch them.
 *
 * @usage
 * ```typescript
 * import { AppLauncher, AppLauncherOptions } from '@ionic-native/app-launcher/ngx';
 * import { Platform } from '@ionic/angular';
 *
 * constructor(private appLauncher: AppLauncher, private platform: Platform) { }
 *
 * ...
 *
 * const options: AppLauncherOptions = {
 * }
 *
 * if(this.platform.is('ios')) {
 *   options.uri = 'fb://'
 * } else {
 *   options.packageName = 'com.facebook.katana'
 * }
 *
 * this.appLauncher.canLaunch(options)
 *   .then((canLaunch: boolean) => console.log('Facebook is available'))
 *   .catch((error: any) => console.error('Facebook is not available'));
 *
 * ```
 */
@Plugin({
  pluginName: 'AppLauncher',
  plugin: 'cordova-plugin-app-launcher',
  pluginRef: 'window.plugins.launcher',
  repo: 'https://github.com/nchutchind/cordova-plugin-app-launcher',
  platforms: ['Android', 'iOS']
})
@Injectable()
export class AppLauncher extends IonicNativePlugin {
  /**
   * Check if any apps are installed that can launch via a specified URI or Package Name.
   * @param options App Launcher options
   * @return {Promise<any>} Returns a promise that resolves if the app is installed
   */
  @Cordova()
  canLaunch(options: AppLauncherOptions): Promise<boolean> {
    return;
  }

  /**
   * Launches the app via a specified URI or Package Name
   * @param options App Launcher options
   * @return {Promise<any>} Returns a promise that resolves the launched app
   */
  @Cordova()
  launch(options: AppLauncherOptions): Promise<any> {
    return;
  }
}