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Commit 26c09c8

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committed
added examples
1 parent 15bcad7 commit 26c09c8

31 files changed

+819
-113
lines changed

‎Tutorial1-1CoroutinesBasics/build.gradle‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -11,7 +11,7 @@ android {
1111
targetSdkVersion rootProject.ext.targetSdkVersion
1212
versionCode 1
1313
versionName "1.0"
14-
14+
multiDexEnabled true
1515
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
1616
}
1717

‎Tutorial1-1CoroutinesBasics/src/main/java/com/smarttoolfactory/tutorial1_1coroutinesbasics/chapter2_scopes/Activity2CoroutineScope3.kt‎

Lines changed: 7 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -5,6 +5,7 @@ import android.widget.TextView
55
import androidx.appcompat.app.AppCompatActivity
66
import com.smarttoolfactory.tutorial1_1basics.R
77
import com.smarttoolfactory.tutorial1_1basics.databinding.Activity2Scope3Binding
8+
import com.smarttoolfactory.tutorial1_1coroutinesbasics.guide.status
89
import com.smarttoolfactory.tutorial1_1coroutinesbasics.util.dataBinding
910
import kotlinx.coroutines.*
1011

@@ -133,9 +134,9 @@ class Activity2CoroutineScope3 : AppCompatActivity(R.layout.activity2_scope_3) {
133134
it?.let {
134135

135136
runOnUiThread {
136-
binding.tvJobResult.text = it.message
137-
binding.tvChildJobResult1.text = it.message
138-
binding.tvChildJobResult2.text = it.message
137+
binding.tvJobResult.text = it.message?: currentJob?.status()
138+
binding.tvChildJobResult1.text = childJob1?.status()
139+
binding.tvChildJobResult2.text = childJob2?.status()
139140
}
140141

141142
}
@@ -175,6 +176,9 @@ class Activity2CoroutineScope3 : AppCompatActivity(R.layout.activity2_scope_3) {
175176
throw RuntimeException("Child 2 threw RuntimeException")
176177

177178
}
179+
childJob2?.invokeOnCompletion {
180+
binding.tvChildJobResult2.text = it?.message ?: childJob2?.status()
181+
}
178182

179183
withContext(Dispatchers.Main) {
180184
binding.btnCancelChildJob1.isEnabled = true

‎Tutorial1-1CoroutinesBasics/src/main/java/com/smarttoolfactory/tutorial1_1coroutinesbasics/chapter2_scopes/Activity2CoroutineScope4.kt‎

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -96,7 +96,8 @@ class Activity2CoroutineScope4 : AppCompatActivity(R.layout.activity2_scope_4) {
9696

9797
override fun onDestroy() {
9898
super.onDestroy()
99-
job.cancel()
99+
if (::job.isInitialized)
100+
job.cancel()
100101
}
101102

102103
}

‎Tutorial1-1CoroutinesBasics/src/main/java/com/smarttoolfactory/tutorial1_1coroutinesbasics/chapter3_lifecycle/Activity3CoroutineLifecycle.kt‎

Lines changed: 12 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -12,9 +12,12 @@ class Activity3CoroutineLifecycle : AppCompatActivity(), CoroutineScope {
1212
private lateinit var job: Job
1313

1414
override val coroutineContext: CoroutineContext
15-
get() = job + Dispatchers.Main + CoroutineName("🙄 Activity Scope") + CoroutineExceptionHandler { coroutineContext, throwable ->
16-
println("🤬 Exception $throwable in context:$coroutineContext")
17-
}
15+
get() = job +
16+
Dispatchers.Main +
17+
CoroutineName("🙄 Activity Scope") +
18+
CoroutineExceptionHandler { coroutineContext, throwable ->
19+
println("🤬 Exception $throwable in context:$coroutineContext")
20+
}
1821

1922

2023
private val binding by lazy {
@@ -33,18 +36,18 @@ class Activity3CoroutineLifecycle : AppCompatActivity(), CoroutineScope {
3336
// 🔥⚠️ This scope lives as long as Application is alive
3437
GlobalScope.launch {
3538
for (i in 0..300) {
36-
println("🤪 Global Progress: $i in thread: ${Thread.currentThread().name}, scope: $this")
39+
println("$TAG🤪 Global Progress: $i in thread: ${Thread.currentThread().name}, scope: $this")
3740
delay(300)
3841
}
3942
}
4043

4144
// This scope is canceled whenever this Activity's onDestroy method is called
4245
launch {
4346
for (i in 0..300) {
44-
println("😍 Activity Scope Progress: $i in thread: ${Thread.currentThread().name}, scope: $this")
47+
println("$TAG😍 Activity Scope Progress: $i in thread: ${Thread.currentThread().name}, scope: $this")
4548
withContext(Dispatchers.Main) {
4649
binding.tvResult.text =
47-
"😍 Activity Scope Progress: $i in thread: ${Thread.currentThread().name}, scope: $this"
50+
"Activity Scope Progress: $i in thread: ${Thread.currentThread().name}, scope: $this"
4851
}
4952
delay(300)
5053
}
@@ -55,17 +58,11 @@ class Activity3CoroutineLifecycle : AppCompatActivity(), CoroutineScope {
5558

5659
override fun onDestroy() {
5760
super.onDestroy()
61+
// cancel() // this is the cancel method of coroutineScope. You can call coroutineScope.cancel() or parentJob.cancel() in order to cancel the parent job.
5862
job.cancel()
5963
}
6064

61-
62-
private suspend fun printNumbers(coroutineScope: CoroutineScope) {
63-
64-
for (i in 0..100) {
65-
println("Progress: $i in thread: ${Thread.currentThread().name}, scope: $coroutineScope")
66-
delay(300)
67-
}
68-
65+
companion object {
66+
const val TAG = "Test-Activity3CoroutineLifecycle"
6967
}
70-
7168
}

‎Tutorial1-1CoroutinesBasics/src/main/java/com/smarttoolfactory/tutorial1_1coroutinesbasics/chapter4_supervisorjob/Activity4SupervisorJob.kt‎

Lines changed: 8 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -6,6 +6,7 @@ import androidx.appcompat.app.AppCompatActivity
66
import androidx.databinding.DataBindingUtil
77
import com.smarttoolfactory.tutorial1_1basics.R
88
import com.smarttoolfactory.tutorial1_1basics.databinding.Activity4SupervisorJobBinding
9+
import com.smarttoolfactory.tutorial1_1coroutinesbasics.guide.status
910
import kotlinx.coroutines.*
1011

1112

@@ -124,9 +125,9 @@ class Activity4SupervisorJob : AppCompatActivity() {
124125
it?.let {
125126

126127
runOnUiThread {
127-
binding.tvJobResult.text = it.message
128-
binding.tvChildJobResult1.text = it.message
129-
binding.tvChildJobResult2.text = it.message
128+
binding.tvJobResult.text = it.message?: currentJob?.status()
129+
binding.tvChildJobResult1.text = childJob1?.status()
130+
binding.tvChildJobResult2.text = childJob2?.status()
130131
}
131132

132133
}
@@ -164,7 +165,7 @@ class Activity4SupervisorJob : AppCompatActivity() {
164165
*/
165166

166167
val childSupervisorJob = SupervisorJob()
167-
childJob2 = myCoroutineScope.launch(childSupervisorJob) {
168+
childJob2 = myCoroutineScope.launch(childSupervisorJob) {
168169

169170
launch {
170171
displayNumbers(binding.tvChildJobResult2)
@@ -174,6 +175,9 @@ class Activity4SupervisorJob : AppCompatActivity() {
174175
throw RuntimeException("Child 2 threw RuntimeException")
175176

176177
}
178+
childJob2?.invokeOnCompletion {
179+
binding.tvChildJobResult2.text = it?.message ?: childJob2?.status()
180+
}
177181

178182
withContext(Dispatchers.Main) {
179183
binding.btnCancelChildJob1.isEnabled = true
Lines changed: 45 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,45 @@
1+
package com.smarttoolfactory.tutorial1_1coroutinesbasics.guide
2+
3+
import kotlinx.coroutines.coroutineScope
4+
import kotlinx.coroutines.launch
5+
import kotlinx.coroutines.runBlocking
6+
7+
/*
8+
* 🔥 launch returns immediately but inside of launch not eecuted immediately. non-blocking code after launch is executed firstly, then inside of launch is executed.
9+
* 🐲 coroutineScope is a blocking code. Code execution does not go to following line,
10+
* waits for completion of inside of coroutineScope and coroutines started before coroutineScope. Thus printed 3 1 2.
11+
*
12+
* https://stackoverflow.com/questions/53535977/coroutines-runblocking-vs-coroutinescope/53536713#53536713 önce buna bak
13+
* */
14+
15+
fun main() = runBlocking {
16+
launch {
17+
println("1")
18+
}
19+
20+
coroutineScope {
21+
launch {
22+
println("2")
23+
}
24+
25+
println("3")
26+
}
27+
28+
coroutineScope {
29+
launch {
30+
println("4")
31+
}
32+
33+
println("5")
34+
}
35+
36+
launch {
37+
println("6")
38+
}
39+
40+
for (i in 7..100) {
41+
println(i.toString())
42+
}
43+
44+
println("101")
45+
}

‎Tutorial1-1CoroutinesBasics/src/main/java/com/smarttoolfactory/tutorial1_1coroutinesbasics/guide/jobs-02.kt‎ renamed to ‎Tutorial1-1CoroutinesBasics/src/main/java/com/smarttoolfactory/tutorial1_1coroutinesbasics/guide/jobs-02-parentJob.cancel().kt‎

Lines changed: 6 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -16,21 +16,19 @@ import kotlinx.coroutines.*
1616

1717
fun main() {
1818

19-
// Parent Job and Coroutine Exception Handler
2019
val parentJob = Job()
2120

22-
// CoroutineScope
2321
val coroutineScope = CoroutineScope(Dispatchers.IO + parentJob)
2422

2523
var child1: Job? = null
2624
var child2: Job? = null
2725

28-
// Use
26+
2927
coroutineScope.launch {
30-
child1 = coroutineScope.launch {
28+
child1 = launch {
3129
delay(500)
3230
}
33-
child2 = coroutineScope.launch {
31+
child2 = launch {
3432
delay(500)
3533
}
3634

@@ -40,9 +38,9 @@ fun main() {
4038

4139
println("Job 1 state: ${child1?.status()}")
4240
println("Job 2 state: ${child2?.status()}")
43-
println("Parent job is active: ${coroutineScope.isActive}")
44-
println("Parent job is active: $isActive")
45-
println("Parent job is active: ${parentJob.isActive}")
41+
println("parentJob.isActive : ${parentJob.isActive}")
42+
println("coroutineScope.isActive : ${coroutineScope.isActive}")
43+
println("coroutineScope.isActive : $isActive")
4644
}
4745

4846

‎Tutorial1-1CoroutinesBasics/src/main/java/com/smarttoolfactory/tutorial1_1coroutinesbasics/guide/jobs-03.kt‎ renamed to ‎Tutorial1-1CoroutinesBasics/src/main/java/com/smarttoolfactory/tutorial1_1coroutinesbasics/guide/jobs-03-childJob.cancel().kt‎

Lines changed: 5 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -9,21 +9,19 @@ import kotlinx.coroutines.*
99

1010
fun main() {
1111

12-
// Parent Job and Coroutine Exception Handler
1312
val parentJob = Job()
1413

15-
// CoroutineScope
1614
val coroutineScope = CoroutineScope(Dispatchers.IO + parentJob)
1715

1816
var child1: Job? = null
1917
var child2: Job? = null
2018

2119

2220
coroutineScope.launch {
23-
child1 = coroutineScope.launch {
21+
child1 = launch {
2422
delay(500)
2523
}
26-
child2 = coroutineScope.launch {
24+
child2 = launch {
2725
delay(500)
2826
}
2927

@@ -32,9 +30,9 @@ fun main() {
3230

3331
println("Job 1 state: ${child1?.status()}")
3432
println("Job 2 state: ${child2?.status()}")
35-
println("Parent job is active: ${coroutineScope.isActive}")
36-
println("Parent job is active: $isActive")
37-
println("Parent job is active: ${parentJob.isActive}")
33+
println("parentJob.isActive : ${parentJob.isActive}")
34+
println("coroutineScope.isActive : ${coroutineScope.isActive}")
35+
println("coroutineScope.isActive : $isActive")
3836
}
3937

4038

‎Tutorial1-1CoroutinesBasics/src/main/java/com/smarttoolfactory/tutorial1_1coroutinesbasics/guide/jobs-04.kt‎ renamed to ‎Tutorial1-1CoroutinesBasics/src/main/java/com/smarttoolfactory/tutorial1_1coroutinesbasics/guide/jobs-04-throw-exception-in-parent-Job.kt‎

Lines changed: 3 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -28,18 +28,17 @@ fun main() {
2828

2929
// Use
3030
coroutineScope.launch {
31-
child1 = coroutineScope.launch {
31+
32+
child1 = launch {
3233
delay(500)
3334
}
34-
child2 = coroutineScope.launch {
35+
child2 = launch {
3536
delay(500)
3637
}
3738

38-
3939
delay(200)
4040
throw RuntimeException()
4141

42-
4342
}
4443

4544

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