Add sleep timer

This closes #105

Author: esensar

app/build.gradle

@@ -76,7 +76,7 @@ android {
 }
 
 dependencies {
-    implementation 'com.github.SimpleMobileTools:Simple-Commons:7c1e5b5777'
+    implementation 'com.github.SimpleMobileTools:Simple-Commons:f64d11af6f'
     implementation 'org.greenrobot:eventbus:3.3.1'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
 }

app/src/main/AndroidManifest.xml

@@ -10,6 +10,7 @@
 
     <uses-permission android:name="android.permission.FLASHLIGHT" />
 
+    <uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM" />
     <uses-permission
         android:name="android.permission.USE_FINGERPRINT"
         tools:node="remove" />
@@ -132,6 +133,9 @@
                 android:resource="@xml/widget_bright_display" />
         </receiver>
 
+        <receiver android:name=".helpers.ShutDownReceiver"
+            android:exported="false" />
+
         <service
             android:name=".helpers.FlashlightTileService"
             android:exported="true"

app/src/main/kotlin/com/simplemobiletools/flashlight/activities/BrightDisplayActivity.kt

@@ -5,11 +5,14 @@ import android.graphics.drawable.ColorDrawable
 import android.os.Bundle
 import android.view.WindowManager
 import com.simplemobiletools.commons.dialogs.ColorPickerDialog
-import com.simplemobiletools.commons.extensions.applyColorFilter
-import com.simplemobiletools.commons.extensions.getContrastColor
-import com.simplemobiletools.commons.extensions.viewBinding
+import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.flashlight.databinding.ActivityBrightDisplayBinding
 import com.simplemobiletools.flashlight.extensions.config
+import com.simplemobiletools.flashlight.helpers.stopSleepTimerCountDown
+import com.simplemobiletools.flashlight.models.Events
+import org.greenrobot.eventbus.EventBus
+import org.greenrobot.eventbus.Subscribe
+import org.greenrobot.eventbus.ThreadMode
 
 class BrightDisplayActivity : SimpleActivity() {
     private val binding by viewBinding(ActivityBrightDisplayBinding::inflate)
@@ -45,6 +48,8 @@ class BrightDisplayActivity : SimpleActivity() {
                 }
             }
         }
+
+        binding.sleepTimerStop.setOnClickListener { stopSleepTimer() }
     }
 
     override fun onResume() {
@@ -60,6 +65,16 @@ class BrightDisplayActivity : SimpleActivity() {
         toggleBrightness(false)
     }
 
+    override fun onStart() {
+        super.onStart()
+        EventBus.getDefault().register(this)
+    }
+
+    override fun onStop() {
+        super.onStop()
+        EventBus.getDefault().unregister(this)
+    }
+
     private fun setBackgroundColor(color: Int) {
         binding.apply {
             brightDisplay.background = ColorDrawable(color)
@@ -77,4 +92,19 @@ class BrightDisplayActivity : SimpleActivity() {
         layout.screenBrightness = (if (increase) 1 else 0).toFloat()
         window.attributes = layout
     }
+
+    private fun stopSleepTimer() {
+        binding.sleepTimerHolder.fadeOut()
+        stopSleepTimerCountDown()
+    }
+
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    fun sleepTimerChanged(event: Events.SleepTimerChanged) {
+        binding.sleepTimerValue.text = event.seconds.getFormattedDuration()
+        binding.sleepTimerHolder.beVisible()
+
+        if (event.seconds == 0) {
+            finish()
+        }
+    }
 }

app/src/main/kotlin/com/simplemobiletools/flashlight/activities/MainActivity.kt

@@ -1,6 +1,8 @@
 package com.simplemobiletools.flashlight.activities
 
 import android.annotation.SuppressLint
+import android.app.AlarmManager
+import android.content.Context
 import android.content.Intent
 import android.content.pm.ActivityInfo
 import android.content.pm.ShortcutInfo
@@ -9,22 +11,22 @@ import android.graphics.drawable.LayerDrawable
 import android.os.Bundle
 import android.view.WindowManager
 import android.widget.ImageView
+import com.simplemobiletools.commons.dialogs.PermissionRequiredDialog
+import com.simplemobiletools.commons.dialogs.RadioGroupDialog
 import com.simplemobiletools.commons.extensions.*
-import com.simplemobiletools.commons.helpers.LICENSE_EVENT_BUS
-import com.simplemobiletools.commons.helpers.PERMISSION_CAMERA
-import com.simplemobiletools.commons.helpers.isNougatMR1Plus
-import com.simplemobiletools.commons.helpers.isNougatPlus
+import com.simplemobiletools.commons.helpers.*
 import com.simplemobiletools.commons.models.FAQItem
+import com.simplemobiletools.commons.models.RadioItem
 import com.simplemobiletools.flashlight.BuildConfig
 import com.simplemobiletools.flashlight.R
 import com.simplemobiletools.flashlight.databinding.ActivityMainBinding
+import com.simplemobiletools.flashlight.dialogs.SleepTimerCustomDialog
 import com.simplemobiletools.flashlight.extensions.config
-import com.simplemobiletools.flashlight.helpers.CameraTorchListener
-import com.simplemobiletools.flashlight.helpers.MIN_BRIGHTNESS_LEVEL
-import com.simplemobiletools.flashlight.helpers.MyCameraImpl
+import com.simplemobiletools.flashlight.helpers.*
 import com.simplemobiletools.flashlight.models.Events
 import org.greenrobot.eventbus.EventBus
 import org.greenrobot.eventbus.Subscribe
+import org.greenrobot.eventbus.ThreadMode
 import java.util.*
 
 class MainActivity : SimpleActivity() {
@@ -74,6 +76,8 @@ class MainActivity : SimpleActivity() {
             stroboscopeBtn.setOnClickListener {
                 toggleStroboscope(false)
             }
+
+            sleepTimerStop.setOnClickListener { stopSleepTimer() }
         }
 
         setupStroboscope()
@@ -126,6 +130,11 @@ class MainActivity : SimpleActivity() {
         super.onStart()
         mBus!!.register(this)
 
+        if (config.sleepInTS == 0L) {
+            binding.sleepTimerHolder.beGone()
+            (getSystemService(Context.ALARM_SERVICE) as AlarmManager).cancel(getShutDownPendingIntent())
+        }
+
         if (mCameraImpl == null) {
             setupCameraImpl()
         }
@@ -146,6 +155,7 @@ class MainActivity : SimpleActivity() {
             when (menuItem.itemId) {
                 R.id.more_apps_from_us -> launchMoreAppsFromUsIntent()
                 R.id.settings -> launchSettings()
+                R.id.sleep_timer -> showSleepTimer()
                 R.id.about -> launchAbout()
                 else -> return@setOnMenuItemClickListener false
             }
@@ -279,6 +289,76 @@ class MainActivity : SimpleActivity() {
         mCameraImpl = null
     }
 
+    private fun showSleepTimer(force: Boolean = false) {
+        val alarmManager = getSystemService(Context.ALARM_SERVICE) as AlarmManager
+        if (isSPlus() && !alarmManager.canScheduleExactAlarms() && !force) {
+            PermissionRequiredDialog(
+                this,
+                com.simplemobiletools.commons.R.string.allow_alarm_sleep_timer,
+                positiveActionCallback = { openRequestExactAlarmSettings(baseConfig.appId) },
+                negativeActionCallback = { showSleepTimer(true) }
+            )
+            return
+        }
+        val minutes = getString(R.string.minutes_raw)
+        val hour = resources.getQuantityString(R.plurals.hours, 1, 1)
+
+        val items = arrayListOf(
+            RadioItem(5 * 60, "5 $minutes"),
+            RadioItem(10 * 60, "10 $minutes"),
+            RadioItem(20 * 60, "20 $minutes"),
+            RadioItem(30 * 60, "30 $minutes"),
+            RadioItem(60 * 60, hour)
+        )
+
+        if (items.none { it.id == config.lastSleepTimerSeconds }) {
+            val lastSleepTimerMinutes = config.lastSleepTimerSeconds / 60
+            val text = resources.getQuantityString(R.plurals.minutes, lastSleepTimerMinutes, lastSleepTimerMinutes)
+            items.add(RadioItem(config.lastSleepTimerSeconds, text))
+        }
+
+        items.sortBy { it.id }
+        items.add(RadioItem(-1, getString(R.string.custom)))
+
+        RadioGroupDialog(this, items, config.lastSleepTimerSeconds) {
+            if (it as Int == -1) {
+                SleepTimerCustomDialog(this) {
+                    if (it > 0) {
+                        pickedSleepTimer(it)
+                    }
+                }
+            } else if (it > 0) {
+                pickedSleepTimer(it)
+            }
+        }
+    }
+
+    private fun pickedSleepTimer(seconds: Int) {
+        config.lastSleepTimerSeconds = seconds
+        config.sleepInTS = System.currentTimeMillis() + seconds * 1000
+        startSleepTimer()
+    }
+
+    private fun startSleepTimer() {
+        binding.sleepTimerHolder.fadeIn()
+        startSleepTimerCountDown()
+    }
+
+    private fun stopSleepTimer() {
+        binding.sleepTimerHolder.fadeOut()
+        stopSleepTimerCountDown()
+    }
+
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    fun sleepTimerChanged(event: Events.SleepTimerChanged) {
+        binding.sleepTimerValue.text = event.seconds.getFormattedDuration()
+        binding.sleepTimerHolder.beVisible()
+
+        if (event.seconds == 0) {
+            finish()
+        }
+    }
+
     @Subscribe
     fun stateChangedEvent(event: Events.StateChanged) {
         checkState(event.isEnabled)

app/src/main/kotlin/com/simplemobiletools/flashlight/dialogs/SleepTimerCustomDialog.kt

@@ -0,0 +1,33 @@
+package com.simplemobiletools.flashlight.dialogs
+
+import android.app.Activity
+import androidx.appcompat.app.AlertDialog
+import com.simplemobiletools.commons.extensions.*
+import com.simplemobiletools.flashlight.R
+import com.simplemobiletools.flashlight.databinding.DialogCustomSleepTimerPickerBinding
+
+class SleepTimerCustomDialog(val activity: Activity, val callback: (seconds: Int) -> Unit) {
+    private var dialog: AlertDialog? = null
+    private val binding = DialogCustomSleepTimerPickerBinding.inflate(activity.layoutInflater)
+
+    init {
+        binding.minutesHint.hint = activity.getString(R.string.minutes_raw).replaceFirstChar { it.uppercaseChar() }
+        activity.getAlertDialogBuilder()
+            .setPositiveButton(R.string.ok) { dialog, which -> dialogConfirmed() }
+            .setNegativeButton(R.string.cancel, null)
+            .apply {
+                activity.setupDialogStuff(binding.root, this, R.string.sleep_timer) { alertDialog ->
+                    dialog = alertDialog
+                    alertDialog.showKeyboard(binding.minutes)
+                }
+            }
+    }
+
+    private fun dialogConfirmed() {
+        val value = binding.minutes.value
+        val minutes = Integer.valueOf(if (value.isEmpty()) "0" else value)
+        callback(minutes * 60)
+        activity.hideKeyboard()
+        dialog?.dismiss()
+    }
+}

app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/Config.kt

@@ -44,4 +44,12 @@ class Config(context: Context) : BaseConfig(context) {
     var brightnessLevel: Int
         get() = prefs.getInt(BRIGHTNESS_LEVEL, DEFAULT_BRIGHTNESS_LEVEL)
         set(brightnessLevel) = prefs.edit().putInt(BRIGHTNESS_LEVEL, brightnessLevel).apply()
+
+    var lastSleepTimerSeconds: Int
+        get() = prefs.getInt(LAST_SLEEP_TIMER_SECONDS, 30 * 60)
+        set(lastSleepTimerSeconds) = prefs.edit().putInt(LAST_SLEEP_TIMER_SECONDS, lastSleepTimerSeconds).apply()
+
+    var sleepInTS: Long
+        get() = prefs.getLong(SLEEP_IN_TS, 0)
+        set(sleepInTS) = prefs.edit().putLong(SLEEP_IN_TS, sleepInTS).apply()
 }

app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/Constants.kt

@@ -12,5 +12,7 @@ const val STROBOSCOPE_PROGRESS = "stroboscope_progress"
 const val FORCE_PORTRAIT_MODE = "force_portrait_mode"
 const val SOS = "sos"
 const val BRIGHTNESS_LEVEL = "brightness_level"
+const val LAST_SLEEP_TIMER_SECONDS = "last_sleep_timer_seconds"
+const val SLEEP_IN_TS = "sleep_in_ts"
 const val MIN_BRIGHTNESS_LEVEL = 1
 const val DEFAULT_BRIGHTNESS_LEVEL = -1

app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/ShutDownReceiver.kt

@@ -0,0 +1,12 @@
+package com.simplemobiletools.flashlight.helpers
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import kotlin.system.exitProcess
+
+class ShutDownReceiver : BroadcastReceiver() {
+    override fun onReceive(p0: Context?, p1: Intent?) {
+        exitProcess(0)
+    }
+}

app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/SleepTimer.kt

@@ -0,0 +1,70 @@
+package com.simplemobiletools.flashlight.helpers
+
+import android.app.AlarmManager
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import android.os.CountDownTimer
+import com.simplemobiletools.commons.helpers.isSPlus
+import com.simplemobiletools.flashlight.extensions.config
+import com.simplemobiletools.flashlight.models.Events
+import org.greenrobot.eventbus.EventBus
+import kotlin.system.exitProcess
+
+private var isActive = false
+private var sleepTimer: CountDownTimer? = null
+
+internal fun Context.toggleSleepTimer() {
+    if (isActive) {
+        stopSleepTimerCountDown()
+    } else {
+        startSleepTimerCountDown()
+    }
+}
+
+internal fun Context.startSleepTimerCountDown() {
+    val millisInFuture = config.sleepInTS - System.currentTimeMillis() + 1000L
+    (getSystemService(Context.ALARM_SERVICE) as AlarmManager).apply {
+        if (!isSPlus() || canScheduleExactAlarms()) {
+            setExactAndAllowWhileIdle(
+                AlarmManager.RTC_WAKEUP,
+                config.sleepInTS,
+                getShutDownPendingIntent()
+            )
+        } else {
+            setAndAllowWhileIdle(
+                AlarmManager.RTC_WAKEUP,
+                config.sleepInTS,
+                getShutDownPendingIntent()
+            )
+        }
+    }
+    sleepTimer?.cancel()
+    sleepTimer = object : CountDownTimer(millisInFuture, 1000) {
+        override fun onTick(millisUntilFinished: Long) {
+            val seconds = (millisUntilFinished / 1000).toInt()
+            EventBus.getDefault().post(Events.SleepTimerChanged(seconds))
+        }
+
+        override fun onFinish() {
+            config.sleepInTS = 0
+            EventBus.getDefault().post(Events.SleepTimerChanged(0))
+            stopSleepTimerCountDown()
+            exitProcess(0)
+        }
+    }
+
+    sleepTimer?.start()
+    isActive = true
+}
+
+internal fun Context.stopSleepTimerCountDown() {
+    (getSystemService(Context.ALARM_SERVICE) as AlarmManager).cancel(getShutDownPendingIntent())
+    sleepTimer?.cancel()
+    sleepTimer = null
+    isActive = false
+    config.sleepInTS = 0
+}
+
+internal fun Context.getShutDownPendingIntent() =
+    PendingIntent.getBroadcast(this, 0, Intent(this, ShutDownReceiver::class.java), PendingIntent.FLAG_IMMUTABLE)

app/src/main/kotlin/com/simplemobiletools/flashlight/models/Events.kt

@@ -8,4 +8,6 @@ class Events {
     class StopStroboscope
 
     class StopSOS
+
+    class SleepTimerChanged(val seconds: Int)
 }