ntfy-android/app/src/main/java/io/heckel/ntfy/list/TopicsListActivity.kt
Philipp Heckel 20d5350a60 EventsFlow
2021-10-25 16:16:23 -04:00

106 lines
3.6 KiB
Kotlin

/*
* Copyright (C) 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.heckel.ntfy.list
import android.app.Activity
import android.content.Intent
import android.os.Bundle
import android.view.View
import androidx.activity.viewModels
import androidx.appcompat.app.AppCompatActivity
import androidx.lifecycle.Observer
import androidx.lifecycle.asLiveData
import androidx.lifecycle.lifecycleScope
import androidx.recyclerview.widget.RecyclerView
import io.heckel.ntfy.R
import io.heckel.ntfy.add.AddTopicActivity
import io.heckel.ntfy.add.TOPIC_URL
import io.heckel.ntfy.data.NtfyApi
import io.heckel.ntfy.data.Topic
import io.heckel.ntfy.detail.TopicDetailActivity
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
const val TOPIC_ID = "topic id"
class TopicsListActivity : AppCompatActivity() {
private val api = NtfyApi(this)
private val newTopicActivityRequestCode = 1
private val topicsListViewModel by viewModels<TopicsListViewModel> {
TopicsListViewModelFactory(this)
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val adapter = TopicsAdapter { topic -> adapterOnClick(topic) }
val recyclerView: RecyclerView = findViewById(R.id.recycler_view)
recyclerView.adapter = adapter
topicsListViewModel.topicsLiveData.observe(this) {
it?.let {
adapter.submitList(it as MutableList<Topic>)
}
}
val fab: View = findViewById(R.id.fab)
fab.setOnClickListener {
fabOnClick()
}
val self = this
api.getEventsFlow().asLiveData(Dispatchers.IO).observe(this, Observer { event ->
// Get the Activity's lifecycleScope and launch
this.lifecycleScope.launch(Dispatchers.Main) {
// run the code again in IO context
withContext(Dispatchers.IO) {
println(event.data)
//Toast.makeText(self, event.data, Toast.LENGTH_SHORT)
}
}
}
)
}
/* Opens TopicDetailActivity when RecyclerView item is clicked. */
private fun adapterOnClick(topic: Topic) {
val intent = Intent(this, TopicDetailActivity()::class.java)
intent.putExtra(TOPIC_ID, topic.id)
startActivity(intent)
}
/* Adds topic to topicList when FAB is clicked. */
private fun fabOnClick() {
val intent = Intent(this, AddTopicActivity::class.java)
startActivityForResult(intent, newTopicActivityRequestCode)
}
override fun onActivityResult(requestCode: Int, resultCode: Int, intentData: Intent?) {
super.onActivityResult(requestCode, resultCode, intentData)
/* Inserts topic into viewModel. */
if (requestCode == newTopicActivityRequestCode && resultCode == Activity.RESULT_OK) {
intentData?.let { data ->
val topicName = data.getStringExtra(TOPIC_URL)
topicsListViewModel.insertTopic(topicName)
}
}
}
}