Ver 5

app/build.gradle

@@ -33,6 +33,14 @@ android {
 
 dependencies {
 
+    implementation 'com.jakewharton.rxbinding3:rxbinding:3.0.0-alpha2'
+    implementation 'com.jakewharton.rxrelay2:rxrelay:2.1.0'
+    implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0-rc01'
+    //implementation 'io.reactivex.rxjava2:rxkotlin:2.3.0'
+    //implementation 'io.reactivex.rxjava2:rxandroid:2.1.1'
+    implementation "io.reactivex.rxjava2:rxkotlin:2.4.0"
+   // implementation "io.reactivex.rxjava2:rxandroid:2.0.2"
+    //
     implementation "io.reactivex.rxjava3:rxjava:3.1.3"
     implementation 'io.reactivex.rxjava3:rxandroid:3.0.0'
 
@@ -43,4 +51,5 @@ dependencies {
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+
 }

app/src/main/java/iam/thevoid/epic/timeapp/MainActivity.kt

@@ -1,21 +1,41 @@
 package iam.thevoid.epic.timeapp
 
-import androidx.appcompat.app.AppCompatActivity
+//import io.reactivex.rxjava3.core.Observable
+//
+//
+import android.annotation.SuppressLint
+import android.graphics.Color
 import android.os.Bundle
 import android.widget.Button
 import android.widget.EditText
 import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
+import com.jakewharton.rxbinding3.view.clicks
+import io.reactivex.Observable
+import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers
+import io.reactivex.rxjava3.annotations.NonNull
+import io.reactivex.rxjava3.core.Flowable
+import io.reactivex.rxjava3.disposables.Disposable
+import io.reactivex.rxkotlin.merge
+import java.text.DateFormat
+import java.text.SimpleDateFormat
+import java.util.*
+import java.util.concurrent.Flow
+import java.util.concurrent.atomic.AtomicBoolean
+import java.util.concurrent.atomic.AtomicLong
+
+
 
 // Дан экран с готовой разметкой
 // Реализовать при помощи RxJava
 // 1) Отображение часов,начинают работать при старте, показывают время в любом удобном формате.
 //    Как пример можно использовать формат из разметки
-// 2) Таймер
+// 2) Таймер - ^?
 //    а) Пользователь вводит количество секунд в поле
 //    б) По нажатию на "Старт" начинается обратный отсчёт
 //    в) (не обязательно) По окончании таймер каким либо образом сигнализирует об окончании,
 //       например область таймера вспыхивает ярким цветом
-// 3) Секундомер
+// 3) Секундомер ^? - Не до конца доделал - не детализированно как время считать ? - повтор 3
 //    а) Пользователь нажимает на "Старт", начинается отсчёт времени. В соответствующие текстовые
 //       поля выводится количество прошедшего времени (отдельно время с точностью до секунд,
 //       отдельно миллисекунды)
@@ -25,6 +45,15 @@ import android.widget.TextView
 //       отсчёт
 //    г) (не обязательно) Можно сделать изменение состояние кнопки "Старт" на "Продолжить" для
 //       состояния паузы
+private const val MAXIMUM_STOP_WATCH_LIMIT = 36000000L
+private const val NUMBER_OF_SECONDS_IN_ONE_MINUTE = 60
+private const val NUMBER_OF_MINUTES_IN_ONE_HOUR = 60
+private const val NUMBER_OF_MILLSECONDS_IN_ONE_SECOND = 1000
+
+
+var elapsedTime = AtomicLong();
+var resumed =  AtomicBoolean();
+var stopped = AtomicBoolean();
 
 class MainActivity : AppCompatActivity() {
 
@@ -35,26 +64,261 @@ class MainActivity : AppCompatActivity() {
     private lateinit var countdownText: TextView
     private lateinit var countdownSecondsEditText: EditText
     private lateinit var countdownStartButton: Button
+    private lateinit var countDownName: TextView
 
     // Секундомер
     private lateinit var stopwatchText: TextView
     private lateinit var stopwatchMillisText: TextView
-    private lateinit var stopwatchStartButton: EditText
-    private lateinit var stopwatchEndButton: EditText
+    private lateinit var SecName: TextView
+    private lateinit var stopwatchStartButton: Button /*EditText*/
+    private lateinit var stopwatchEndButton:   Button /*EditText*/
+
+
+    private val disposable =
+        io.reactivex.disposables.CompositeDisposable()
+    private val disposableMS = io.reactivex.disposables.CompositeDisposable()
+
+    var flowable: Disposable? = null
+
+    //var disposable: Disposable? = null;
+    private val displayInitialState by lazy { resources.getString(R.string._0_0) }
+    private val displayInitialStateMS by lazy { resources.getString(R.string._0_0_0) }
+
+
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
 
         clockText = findViewById(R.id.clockText)
+        clock()
 
         countdownText = findViewById(R.id.countdownText)
         countdownSecondsEditText = findViewById(R.id.countdownEditText)
         countdownStartButton = findViewById(R.id.countdownStartButton)
 
+        countdownStartButton.setOnClickListener {
+            if (!(countdownSecondsEditText.text.isNullOrBlank())) {
+                timer(countdownSecondsEditText.text.toString().toLong())
+                countDownName.setText(R.string.count_down_name)
+            }
+            else
+            {
+                countDownName.text =  getResources().getString(R.string.count_down_error)
+            }
+        }
+
+
         stopwatchText = findViewById(R.id.stopwatchText)
+
         stopwatchMillisText = findViewById(R.id.stopwatchMillisText)
-        stopwatchStartButton = findViewById(R.id.stopwatchStartButton)
-        stopwatchEndButton = findViewById(R.id.stopwatchEndButton)
+        //
+        SecName =  findViewById(R.id.SecName)
+        countDownName =  findViewById(R.id.countDownName)
+        //
+
+        stopwatchStartButton =  findViewById(R.id.stopwatchStartButton)
+        stopwatchEndButton   =   findViewById(R.id.stopwatchEndButton)
+
+
+        stopwatchStartButton.setOnClickListener {
+            resumed.set(true)
+            stopped.set(false)
+            if  ( stopwatchEndButton.text == "Reset" ) {
+                stopwatchEndButton.text = "Pause"
+            }
+
+            stopwatchStartButton.isEnabled = false
+            stopwatchEndButton.isEnabled = true
+            this.flowable = startTimer()
+        }
+
+        stopwatchEndButton.setOnClickListener {
+            //1st one
+            var secondPress  = if (stopwatchEndButton.text.equals("Pause")) { 1 } else {2}
+            stopwatchStartButton.isEnabled = true
+            stopwatchEndButton.isEnabled = true
+
+            if (stopwatchEndButton.text.equals("Reset")) {
+                // so that we to define that pressed button second one
+                stopwatchStartButton.text = "Start"
+                stopwatchEndButton.text   = "Pause"
+                stopwatchEndButton.isEnabled = false // that .. get confused
+                secondPress = 2
+                elapsedTime.set(0L);
+                // probably don't do it. leak?
+                //this.flowable?.dispose()
+                //this.flowable = null
+            }
+
+            if (stopwatchEndButton.text.equals("Pause") && secondPress == 1 )
+            {
+                stopwatchEndButton.text   = "Reset"
+                //stopwatchStartButton.text = "Start"
+                stopwatchStartButton.text = "Continue"
+            }
+            //stopped.set(true)
+            stopTimer()
+        }
+
+        stopwatchEndButton.isEnabled = false
+
+        /*   mergeClicks().switchMap {
+               if (it) timerObservable()
+               else Observable.just(displayInitialState)
+           }.subscribe(
+               { s -> /*println(s)*/ stopwatchText.setText(s.substring(1,7))
+                   stopwatchMillisText.setText(s)}
+              )
+           .let(disposable::add)
+         */
+
+        /*     mergeClicks().switchMap {
+                  if (it) timerObservableMS()
+                  else Observable.just(displayInitialStateMS)
+              }.subscribe(/*stopwatchMillisText*/SecName::setText)
+                  .let(disposableMS::add)
+         */
+
+    }
+
+    fun startTimer(): /*@NonNull*/ Disposable { //Create and starts ticker :)
+        return Flowable.interval(1, java.util.concurrent.TimeUnit.MILLISECONDS)
+            .onBackpressureBuffer ()
+            .takeWhile { !stopped.get() }
+            .filter { resumed.get() }
+            .map {
+                elapsedTime.addAndGet(
+                    1
+                )
+            }
+            .observeOn (AndroidSchedulers.mainThread ())
+            .subscribe({ s: Long ->
+                val txtSec =
+                    "${(((s / NUMBER_OF_MILLSECONDS_IN_ONE_SECOND ) / NUMBER_OF_SECONDS_IN_ONE_MINUTE) / NUMBER_OF_MINUTES_IN_ONE_HOUR ).toString().padStart(2,'0')} : ${((s / NUMBER_OF_MILLSECONDS_IN_ONE_SECOND ) / NUMBER_OF_SECONDS_IN_ONE_MINUTE).toString().padStart(2,'0')} : ${((s / NUMBER_OF_MILLSECONDS_IN_ONE_SECOND) % NUMBER_OF_SECONDS_IN_ONE_MINUTE).toString().padStart(2,'0')}"
+                //"${((s / NUMBER_OF_MILLSECONDS_IN_ONE_SECOND ) / NUMBER_OF_SECONDS_IN_ONE_MINUTE).toString().padStart(2,'0')} : ${((s / NUMBER_OF_MILLSECONDS_IN_ONE_SECOND) % NUMBER_OF_SECONDS_IN_ONE_MINUTE).toString().padStart(2,'0')}"
+                stopwatchText.setText(txtSec)
+                val txtMil ="${(s % NUMBER_OF_MILLSECONDS_IN_ONE_SECOND).toString().padStart(3,'0')}"
+                //"${(s % NUMBER_OF_MILLSECONDS_IN_ONE_SECOND) - (s / NUMBER_OF_MILLSECONDS_IN_ONE_SECOND) }"
+                stopwatchMillisText.setText(txtMil)
+            })
+    }
+
+
+    fun  pauseTimer() {
+        resumed.set(false);
+    }
+    fun resumeTimer() {
+        resumed.set(true)
     }
-}
+
+    fun stopTimer() {
+        stopped.set(true)
+    }
+
+    fun addToTimer(seconds: Int) {
+        elapsedTime.addAndGet((seconds * 1000).toLong())
+    }
+
+
+
+    override fun onDestroy() {
+        disposable.clear()
+        disposableMS.clear()
+        flowable?.dispose()
+        flowable = null
+        super.onDestroy()
+    }
+
+    private fun mergeClicks(): Observable<Boolean> =
+        listOf( stopwatchStartButton.clicks().map { true }, stopwatchEndButton.clicks().map { false })
+            .merge()
+            .doOnNext(::buttonStateManager)
+
+    private fun buttonStateManager(boolean: Boolean) {
+        stopwatchStartButton.isEnabled = !boolean
+        stopwatchEndButton.isEnabled = boolean
+
+    }
+    private fun timerObservable(): Observable<String> =
+        Observable.interval(0, 1, /*java.util.concurrent.TimeUnit.SECONDS*/java.util.concurrent.TimeUnit.MILLISECONDS)
+            .takeWhile { it <= MAXIMUM_STOP_WATCH_LIMIT }
+            .map(timeFormatter)
+            .observeOn(io.reactivex.android.schedulers.AndroidSchedulers.mainThread())
+            .doOnComplete { buttonStateManager(false) }
+
+    private fun timerObservableMS(): Observable<String> =
+        Observable.interval(0, 1, java.util.concurrent.TimeUnit.MILLISECONDS)
+            .takeWhile { it <= MAXIMUM_STOP_WATCH_LIMIT }
+            .map(timeFormatterMS)
+            .observeOn(io.reactivex.android.schedulers.AndroidSchedulers.mainThread())
+            .doOnComplete { buttonStateManager(false) }
+
+    private val timeFormatter: (Long) -> String =
+        { secs ->
+            if (secs == MAXIMUM_STOP_WATCH_LIMIT) displayInitialState
+            /// else "${secs / NUMBER_OF_SECONDS_IN_ONE_MINUTE} : ${secs % NUMBER_OF_SECONDS_IN_ONE_MINUTE}"
+            else "${(secs / NUMBER_OF_MILLSECONDS_IN_ONE_SECOND ) / NUMBER_OF_SECONDS_IN_ONE_MINUTE} : ${(secs / NUMBER_OF_MILLSECONDS_IN_ONE_SECOND) % NUMBER_OF_SECONDS_IN_ONE_MINUTE}  :  ${(secs / NUMBER_OF_MILLSECONDS_IN_ONE_SECOND) - (secs % NUMBER_OF_MILLSECONDS_IN_ONE_SECOND)}"
+
+        }
+
+
+    private val timeFormatterMS: (Long) -> String =
+        { secs ->
+            if (secs == MAXIMUM_STOP_WATCH_LIMIT) displayInitialStateMS
+            else "${secs} "
+        }
+
+    override fun onStop() {
+        super.onStop()
+        disposable?.dispose()
+        // disposable = null
+    }
+
+    override fun onStart() {
+        super.onStart()
+        //   disposable = null; // subscribeInput()
+    }
+
+    val mSubscription: Flow.Subscription? = null
+    @SuppressLint("ResourceAsColor", "ResourceType")
+    private fun timer(count: Long) {
+        countdownStartButton.isEnabled=false //how make kill emit and start again
+        Flowable.interval (0, 1,  java.util.concurrent.TimeUnit.SECONDS)
+            .onBackpressureBuffer ()
+            .take (count + 1)
+            .map{ aLong ->
+                count - aLong
+            }
+            .observeOn (AndroidSchedulers.mainThread ())
+            .subscribe({
+                countdownText.text = it.toString()
+                if (it == 0L) {
+                    //val redClr = getResources().getString(R.color.red);
+                    countdownText.setTextColor(/*R.color.red*/ Color.RED)
+                    countdownStartButton.isEnabled=true
+                }
+            })
+
+    }
+
+
+    private fun clock() {
+        val count: Long = 10000000000000000L
+        Flowable.interval (0, 1,  java.util.concurrent.TimeUnit.SECONDS)
+            .onBackpressureBuffer ()
+            .take (count + 1)
+            .map{ aLong ->
+                count - aLong //
+            }
+            .observeOn (AndroidSchedulers.mainThread ())
+            .subscribe({
+                clockText.text = SimpleDateFormat(/*"hh:mm:ss.S"*//*"HH:mm:ss.SSS"*/"HH:mm:ss").format(Date(System.currentTimeMillis())) //time
+            })
+
+
+
+    }
+
+}
+

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

@@ -35,6 +35,7 @@
         android:layout_weight="1">
 
         <TextView
+            android:id="@+id/countDownName"
             style="@style/TitleText"
             android:text="Обратный отсчёт:" />
 
@@ -59,12 +60,12 @@
             tools:text="[02:37]" />
 
         <Button
-            android:layout_marginStart="16dp"
-            android:layout_marginBottom="4dp"
-            android:layout_gravity="bottom"
             android:id="@+id/countdownStartButton"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            android:layout_gravity="bottom"
+            android:layout_marginStart="16dp"
+            android:layout_marginBottom="4dp"
             android:text="Start" />
     </FrameLayout>
 
@@ -79,6 +80,7 @@
         android:layout_weight="1">
 
         <TextView
+            android:id="@+id/SecName"
             style="@style/TitleText"
             android:text="Секундомер:" />