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alllexey
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Add QR Code activity
1 parent 7c38ba0 commit 2c29c18

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8 files changed

+216
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‎app/src/main/AndroidManifest.xml‎

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@@ -14,6 +14,9 @@
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/AppTheme">
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<activity
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android:name=".ui.qr.QrCodeActivity"
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android:exported="false" />
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<activity
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android:name=".ui.schedule.ScheduleActivity"
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android:exported="false" />

‎app/src/main/java/me/alllexey123/itmowidgets/ui/qr/QrCodeActivity.kt‎

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package me.alllexey123.itmowidgets.ui.qr
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import android.os.Bundle
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import android.widget.ImageView
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import android.widget.Toast
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import androidx.activity.viewModels
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import androidx.appcompat.app.AppCompatActivity
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import com.google.android.material.floatingactionbutton.FloatingActionButton
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import me.alllexey123.itmowidgets.ItmoWidgetsApp
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import me.alllexey123.itmowidgets.R
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import me.alllexey123.itmowidgets.ui.widgets.QrCodeWidget
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private const val PIXELS_PER_MODULE: Int =
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(QrCodeWidget.Companion.PIXELS_PER_MODULE * 1.5).toInt()
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class QrCodeActivity : AppCompatActivity() {
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private lateinit var qrBgImage: ImageView
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private lateinit var qrCodeImage: ImageView
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private lateinit var fabRefresh: FloatingActionButton
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private val qrCodeViewModel: QrCodeViewModel by viewModels {
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val appContainer = (application as ItmoWidgetsApp).appContainer
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QrCodeViewModelFactory(appContainer.qrCodeRepository)
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}
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_qr_code)
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qrCodeImage = findViewById(R.id.qr_code_image)
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qrBgImage = findViewById(R.id.qr_bg_image)
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setupButtons()
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observeUiState()
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updateQr()
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}
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private fun setupButtons() {
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fabRefresh = findViewById(R.id.fab_refresh)
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fabRefresh.setOnClickListener {
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val appContainer = (applicationContext as ItmoWidgetsApp).appContainer
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appContainer.qrCodeRepository.clearCache()
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updateQr()
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}
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}
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fun updateQr() {
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qrCodeViewModel.fetchQrCode()
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}
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private fun observeUiState() {
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qrCodeViewModel.uiState.observe(this) { state ->
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val appContainer = (applicationContext as ItmoWidgetsApp).appContainer
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val generator = appContainer.qrCodeGenerator
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val renderer = appContainer.qrBitmapRenderer
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val storage = appContainer.storage
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val dynamicColors = storage.getDynamicQrColorsState()
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val bitmap = when (state) {
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is QrCodeUiState.Loading -> {
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renderer.renderFull(21 * PIXELS_PER_MODULE, PIXELS_PER_MODULE / 2F, dynamicColors)
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}
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is QrCodeUiState.Success -> {
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val qrCode = generator.generate(state.qrCodeHex)
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renderer.render(qrCode, PIXELS_PER_MODULE, dynamicColors)
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}
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is QrCodeUiState.Error -> {
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Toast.makeText(this, state.message, Toast.LENGTH_LONG).show()
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renderer.renderEmpty(21 * PIXELS_PER_MODULE, PIXELS_PER_MODULE / 2F, dynamicColors)
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}
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}
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val colors = renderer.getQrColors(dynamicColors)
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qrBgImage.setColorFilter(colors.first)
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qrCodeImage.setImageBitmap(bitmap)
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}
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}
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}

‎app/src/main/java/me/alllexey123/itmowidgets/ui/qr/QrCodeViewModel.kt‎

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package me.alllexey123.itmowidgets.ui.qr
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import androidx.lifecycle.LiveData
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import androidx.lifecycle.MutableLiveData
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import androidx.lifecycle.ViewModel
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import androidx.lifecycle.viewModelScope
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import kotlinx.coroutines.launch
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import me.alllexey123.itmowidgets.data.repository.QrCodeRepository
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sealed class QrCodeUiState {
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object Loading : QrCodeUiState()
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data class Success(val qrCodeHex: String) : QrCodeUiState()
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data class Error(val message: String) : QrCodeUiState()
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}
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class QrCodeViewModel(
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private val qrCodeRepository: QrCodeRepository
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) : ViewModel() {
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private val _uiState = MutableLiveData<QrCodeUiState>()
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val uiState: LiveData<QrCodeUiState> = _uiState
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fun fetchQrCode() {
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_uiState.value = QrCodeUiState.Loading
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viewModelScope.launch {
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try {
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_uiState.value = QrCodeUiState.Loading
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val qrCodeHex = qrCodeRepository.getQrHex()
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_uiState.postValue(QrCodeUiState.Success(qrCodeHex))
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} catch (e: Exception) {
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val errorMessage = "Failed to update qr code: ${e.message}"
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_uiState.postValue(QrCodeUiState.Error(errorMessage))
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e.printStackTrace()
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}
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}
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}
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}

‎app/src/main/java/me/alllexey123/itmowidgets/ui/qr/QrCodeViewModelFactory.kt‎

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package me.alllexey123.itmowidgets.ui.qr
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import androidx.lifecycle.ViewModel
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import androidx.lifecycle.ViewModelProvider
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import me.alllexey123.itmowidgets.data.repository.QrCodeRepository
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class QrCodeViewModelFactory(
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private val qrCodeRepository: QrCodeRepository
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) : ViewModelProvider.Factory {
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@Suppress("UNCHECKED_CAST")
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override fun <T : ViewModel> create(modelClass: Class<T>): T {
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if (modelClass.isAssignableFrom(QrCodeViewModel::class.java)) {
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return QrCodeViewModel(qrCodeRepository) as T
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}
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throw IllegalArgumentException("Unknown ViewModel class")
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}
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}

‎app/src/main/java/me/alllexey123/itmowidgets/ui/schedule/ScheduleActivity.kt‎

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@@ -15,6 +15,7 @@ import androidx.recyclerview.widget.RecyclerView
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import com.google.android.material.floatingactionbutton.FloatingActionButton
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import me.alllexey123.itmowidgets.ItmoWidgetsApp
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import me.alllexey123.itmowidgets.R
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import me.alllexey123.itmowidgets.ui.qr.QrCodeActivity
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import me.alllexey123.itmowidgets.ui.settings.SettingsActivity
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import java.time.LocalDate
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@@ -25,6 +26,8 @@ class ScheduleActivity : AppCompatActivity() {
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private lateinit var fabSettings: FloatingActionButton
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private lateinit var fabQr: FloatingActionButton
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private val snapHelper = PagerSnapHelper()
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private val scheduleViewModel: ScheduleViewModel by viewModels {
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val intent = Intent(this, SettingsActivity::class.java)
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startActivity(intent)
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}
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fabQr = findViewById(R.id.fab_qr)
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fabQr.setOnClickListener { view ->
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val intent = Intent(this, QrCodeActivity::class.java)
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startActivity(intent)
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}
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}
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private fun setupRecyclerView() {

‎app/src/main/res/drawable/ic_qr_code.xml‎

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<vector xmlns:android="http://schemas.android.com/apk/res/android"
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android:width="24dp"
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android:height="24dp"
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android:viewportWidth="960"
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android:viewportHeight="960"
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android:tint="?colorOnPrimaryContainer">
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<path
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android:fillColor="#FF000000"
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android:pathData="M120,440v-320h320v320L120,440ZM200,360h160v-160L200,200v160ZM120,840v-320h320v320L120,840ZM200,760h160v-160L200,600v160ZM520,440v-320h320v320L520,440ZM600,360h160v-160L600,200v160ZM760,840v-80h80v80h-80ZM520,600v-80h80v80h-80ZM600,680v-80h80v80h-80ZM520,760v-80h80v80h-80ZM600,840v-80h80v80h-80ZM680,760v-80h80v80h-80ZM680,600v-80h80v80h-80ZM760,680v-80h80v80h-80Z"/>
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</vector>

‎app/src/main/res/layout/activity_qr_code.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:app="http://schemas.android.com/apk/res-auto"
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xmlns:tools="http://schemas.android.com/tools"
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android:id="@+id/main"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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tools:context=".ui.qr.QrCodeActivity">
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<RelativeLayout
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android:layout_width="270dp"
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android:layout_height="270dp"
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android:gravity="center_vertical"
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android:padding="8dp"
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app:layout_constraintBottom_toBottomOf="parent"
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app:layout_constraintEnd_toEndOf="parent"
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app:layout_constraintStart_toStartOf="parent"
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app:layout_constraintTop_toTopOf="parent"
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android:layout_marginBottom="120dp">
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<ImageView
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android:id="@+id/qr_bg_image"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:scaleType="fitXY"
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android:src="@drawable/widget_background_rounded" />
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<ImageView
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android:id="@+id/qr_code_image"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:layout_margin="8dp"
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android:background="@android:color/transparent" />
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</RelativeLayout>
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<com.google.android.material.floatingactionbutton.FloatingActionButton
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android:id="@+id/fab_refresh"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:layout_margin="16dp"
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app:srcCompat="@drawable/ic_refresh"
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app:layout_constraintBottom_toBottomOf="parent"
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app:layout_constraintEnd_toEndOf="parent" />
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</androidx.constraintlayout.widget.ConstraintLayout>

‎app/src/main/res/layout/activity_schedule.xml‎

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app:layout_constraintEnd_toEndOf="parent"
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android:visibility="visible" />
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<com.google.android.material.floatingactionbutton.FloatingActionButton
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android:id="@+id/fab_qr"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:layout_margin="16dp"
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app:srcCompat="@drawable/ic_qr_code"
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app:layout_constraintBottom_toTopOf="@id/fab_settings"
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app:layout_constraintEnd_toEndOf="parent" />
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<com.google.android.material.floatingactionbutton.FloatingActionButton
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android:id="@+id/fab_settings"

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