Method constructor

packages/firebase-database/index.android.ts:637–647

(app?: FirebaseApp)

	_native: com.google.firebase.database.FirebaseDatabase;
	_app: FirebaseApp;
	constructor(app?: FirebaseApp) {
		if (app?.native) {
			this._native = com.google.firebase.database.FirebaseDatabase.getInstance(app.native);
		} else {
			if (defaultDatabase) {
				return defaultDatabase;
			}
			defaultDatabase = this;
			this._native = com.google.firebase.database.FirebaseDatabase.getInstance();
		}
	}

	useEmulator(host: string, port: number) {
		this.native.useEmulator(host === 'localhost' || host === '127.0.0.1' ? '10.0.2.2' : host, port);