Ваше Имя
53 lines
1.6 KiB
Kotlin
53 lines
1.6 KiB
Kotlin
package com.example.myapplication
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import android.os.Bundle
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import android.widget.Button
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import android.widget.EditText
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import androidx.activity.ComponentActivity
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import androidx.lifecycle.lifecycleScope
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import androidx.recyclerview.widget.LinearLayoutManager
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import androidx.recyclerview.widget.RecyclerView
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import kotlinx.coroutines.launch
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class MainActivity : ComponentActivity() {
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private lateinit var etInput: EditText
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private lateinit var btnAdd: Button
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private lateinit var recyclerView: RecyclerView
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private lateinit var adapter: NoteAdapter
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private lateinit var db: AppDatabase
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_main)
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etInput = findViewById(R.id.etInput)
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btnAdd = findViewById(R.id.btnAdd)
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recyclerView = findViewById(R.id.recyclerView)
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adapter = NoteAdapter(emptyList())
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recyclerView.layoutManager = LinearLayoutManager(this)
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recyclerView.adapter = adapter
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db = AppDatabase.getDatabase(this)
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// Добавляем заметку
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btnAdd.setOnClickListener {
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val text = etInput.text.toString()
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if (text.isNotEmpty()) {
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lifecycleScope.launch {
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db.noteDao().insert(NoteEntity(text = text))
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}
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etInput.text.clear()
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}
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}
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// Подписываемся на изменения
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lifecycleScope.launch {
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db.noteDao().getAll().collect { notes ->
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adapter.update(notes)
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}
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}
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}
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} |