/* * This file is part of GNU Taler * (C) 2020 Taler Systems S.A. * * GNU Taler is free software; you can redistribute it and/or modify it under the * terms of the GNU General Public License as published by the Free Software * Foundation; either version 3, or (at your option) any later version. * * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR * A PARTICULAR PURPOSE. See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with * GNU Taler; see the file COPYING. If not, see */ package net.taler.cashier import android.content.Intent import android.content.Intent.ACTION_MAIN import android.content.Intent.CATEGORY_HOME import android.content.Intent.FLAG_ACTIVITY_NEW_TASK import android.os.Bundle import androidx.activity.viewModels import androidx.appcompat.app.AppCompatActivity import androidx.navigation.NavController import androidx.navigation.fragment.NavHostFragment import kotlinx.android.synthetic.main.activity_main.* class MainActivity : AppCompatActivity() { private val viewModel: MainViewModel by viewModels() private lateinit var nav: NavController override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) setSupportActionBar(toolbar) val navHostFragment = supportFragmentManager.findFragmentById(R.id.nav_host_fragment) as NavHostFragment nav = navHostFragment.navController } override fun onStart() { super.onStart() if (!viewModel.hasConfig()) { nav.navigate(viewModel.configDestination) } } override fun onBackPressed() { if (!viewModel.hasConfig() && nav.currentDestination?.id == R.id.configFragment) { // we are in the configuration screen and need a config to continue val intent = Intent(ACTION_MAIN).apply { addCategory(CATEGORY_HOME) flags = FLAG_ACTIVITY_NEW_TASK } startActivity(intent) } else { super.onBackPressed() } } }