feat(android-fingerprint-auth): add wrapper for plugin

closes #334

src/index.ts

@@ -6,6 +6,7 @@ declare var window;
 
 import {ActionSheet} from './plugins/actionsheet';
 import {AdMob} from './plugins/admob';
+import { AndroidFingerprintAuth } from './plugins/android-fingerprint-auth';
 import {AppAvailability} from './plugins/appavailability';
 import {AppRate} from './plugins/apprate';
 import {AppVersion} from './plugins/appversion';
@@ -109,6 +110,7 @@ export * from './plugins/twitter-connect';
 export {
   ActionSheet,
   AdMob,
+  AndroidFingerprintAuth,
   AppAvailability,
   AppRate,
   AppVersion,
@@ -159,6 +161,7 @@ export * from './plugins/plugin';
 window['IonicNative'] = {
   ActionSheet: ActionSheet,
   AdMob: AdMob,
+  AndroidFingerprintAuth: AndroidFingerprintAuth,
   AppAvailability: AppAvailability,
   AppRate: AppRate,
   AppVersion: AppVersion,

src/plugins/android-fingerprint-auth.ts

@@ -0,0 +1,77 @@
+import { Cordova, Plugin } from './plugin';
+/**
+ * @name Android Fingerprint Auth
+ * @description
+ * This plugin will open a native dialog fragment prompting the user to authenticate using their fingerprint. If the device has a secure lockscreen (pattern, PIN, or password), the user may opt to authenticate using that method as a backup.
+ * @usage
+ * ```typescript
+ * import { AndroidFingerprintAuth } from 'ionic-native';
+ *
+ * AndroidFingerprintAuth.isAvailable()
+ *   .then((result)=> {
+ *     if(result.isAvailable){
+ *       // it is available
+ *
+ *       AndroidFingerprintAuth.show({ clientId: "myAppName", clientSecret: "so_encrypted_much_secure_very_secret" })
+ *         .then(result => {
+ *            if(result.withFingerprint) {
+ *              console.log('Successfully authenticated with fingerprint!');
+ *            } else if(result.withPassword) {
+ *              console.log('Successfully authenticated with backup password!');
+ *            } else console.log('Didn\'t authenticate!');
+ *         })
+ *         .catch(error => console.error(error));
+ *
+ *     } else {
+ *       // fingerprint auth isn't available
+ *     }
+ *   })
+ *   .catch(error => console.error(error));
+ * ```
+ */
+@Plugin({
+  plugin: 'cordova-plugin-android-fingerprint-auth',
+  pluginRef: 'FingerprintAuth',
+  repo: 'https://github.com/mjwheatley/cordova-plugin-android-fingerprint-auth'
+})
+export class AndroidFingerprintAuth {
+  /**
+   * Opens a native dialog fragment to use the device hardware fingerprint scanner to authenticate against fingerprints registered for the device.
+   * @param params {any}
+   */
+  @Cordova()
+  static show(params: {
+    /**
+     * Used as the alias for your key in the Android Key Store.
+     */
+    clientId: string;
+    /**
+     * Used to encrypt the token returned upon successful fingerprint authentication.
+     */
+    clientSecret: string;
+    /**
+     * Set to true to remove the "USE BACKUP" button
+     */
+    disableBackup?: boolean;
+    /**
+     * Change the language. (en_US or es)
+     */
+    locale?: string
+  }): Promise<{
+    /**
+     * Base64 encoded string
+     */
+    withFingerprint: string;
+    /**
+     *
+     */
+    withPassword: boolean;
+  }> {return; }
+
+  /**
+   * Check if service is available
+   */
+  @Cordova()
+  static isAvailable(): Promise<{isAvailable: boolean}> {return; }
+
+}