/* * 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.wallet.balances import android.os.Bundle import android.transition.TransitionManager.beginDelayedTransition import android.view.LayoutInflater import android.view.View import android.view.View.GONE import android.view.View.INVISIBLE import android.view.View.VISIBLE import android.view.ViewGroup import androidx.fragment.app.Fragment import androidx.fragment.app.activityViewModels import androidx.recyclerview.widget.DividerItemDecoration import androidx.recyclerview.widget.LinearLayoutManager.VERTICAL import net.taler.common.fadeIn import net.taler.wallet.MainViewModel import net.taler.wallet.databinding.FragmentBalancesBinding interface BalanceClickListener { fun onBalanceClick(currency: String) } class BalancesFragment : Fragment(), BalanceClickListener { private val model: MainViewModel by activityViewModels() private lateinit var ui: FragmentBalancesBinding private val balancesAdapter = BalanceAdapter(this) override fun onCreateView( inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle? ): View? { ui = FragmentBalancesBinding.inflate(inflater, container, false) return ui.root } override fun onViewCreated(view: View, savedInstanceState: Bundle?) { ui.mainList.apply { adapter = balancesAdapter addItemDecoration(DividerItemDecoration(context, VERTICAL)) } model.balances.observe(viewLifecycleOwner, { onBalancesChanged(it) }) } private fun onBalancesChanged(balances: List) { beginDelayedTransition(view as ViewGroup) if (balances.isEmpty()) { ui.mainEmptyState.visibility = VISIBLE ui.mainList.visibility = GONE } else { balancesAdapter.setItems(balances) ui.mainEmptyState.visibility = INVISIBLE ui.mainList.fadeIn() } } override fun onBalanceClick(currency: String) { model.showTransactions(currency) } }