├── app
    ├── .gitignore
    ├── src
    │   ├── main
    │   │   ├── res
    │   │   │   ├── values
    │   │   │   │   ├── strings.xml
    │   │   │   │   ├── colors.xml
    │   │   │   │   └── styles.xml
    │   │   │   ├── mipmap-hdpi
    │   │   │   │   ├── ic_launcher.png
    │   │   │   │   └── ic_launcher_round.png
    │   │   │   ├── mipmap-mdpi
    │   │   │   │   ├── ic_launcher.png
    │   │   │   │   └── ic_launcher_round.png
    │   │   │   ├── mipmap-xhdpi
    │   │   │   │   ├── ic_launcher.png
    │   │   │   │   └── ic_launcher_round.png
    │   │   │   ├── mipmap-xxhdpi
    │   │   │   │   ├── ic_launcher.png
    │   │   │   │   └── ic_launcher_round.png
    │   │   │   ├── mipmap-xxxhdpi
    │   │   │   │   ├── ic_launcher.png
    │   │   │   │   └── ic_launcher_round.png
    │   │   │   ├── mipmap-anydpi-v26
    │   │   │   │   ├── ic_launcher.xml
    │   │   │   │   └── ic_launcher_round.xml
    │   │   │   ├── layout
    │   │   │   │   └── activity_main.xml
    │   │   │   ├── drawable-v24
    │   │   │   │   └── ic_launcher_foreground.xml
    │   │   │   └── drawable
    │   │   │   │   └── ic_launcher_background.xml
    │   │   ├── java
    │   │   │   └── com
    │   │   │   │   └── mouredev
    │   │   │   │       └── kotlinparaprincipiantes
    │   │   │   │           ├── Programmer.kt
    │   │   │   │           └── MainActivity.kt
    │   │   └── AndroidManifest.xml
    │   ├── test
    │   │   └── java
    │   │   │   └── com
    │   │   │       └── mouredev
    │   │   │           └── kotlinparaprincipiantes
    │   │   │               └── ExampleUnitTest.kt
    │   └── androidTest
    │   │   └── java
    │   │       └── com
    │   │           └── mouredev
    │   │               └── kotlinparaprincipiantes
    │   │                   └── ExampleInstrumentedTest.kt
    ├── proguard-rules.pro
    └── build.gradle
├── settings.gradle
├── gradle
    └── wrapper
    │   ├── gradle-wrapper.jar
    │   └── gradle-wrapper.properties
├── .idea
    ├── codeStyles
    │   ├── codeStyleConfig.xml
    │   └── Project.xml
    └── runConfigurations.xml
├── gradle.properties
├── gradlew.bat
├── README.md
├── gradlew
└── .gitignore


/app/.gitignore:
--------------------------------------------------------------------------------
1 | /build
2 | 


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/settings.gradle:
--------------------------------------------------------------------------------
1 | include ':app'
2 | 


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/gradle/wrapper/gradle-wrapper.jar:
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https://raw.githubusercontent.com/mouredev/KotlinDesdeCero/HEAD/gradle/wrapper/gradle-wrapper.jar


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/app/src/main/res/values/strings.xml:
--------------------------------------------------------------------------------
1 | <resources>
2 |     <string name="app_name">Kotlin para principiantes</string>
3 | </resources>
4 | 


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/app/src/main/res/mipmap-hdpi/ic_launcher.png:
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https://raw.githubusercontent.com/mouredev/KotlinDesdeCero/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher.png


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/app/src/main/res/mipmap-mdpi/ic_launcher.png:
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https://raw.githubusercontent.com/mouredev/KotlinDesdeCero/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher.png


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/app/src/main/res/mipmap-xhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/mouredev/KotlinDesdeCero/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher.png


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/app/src/main/res/mipmap-xxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/mouredev/KotlinDesdeCero/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher.png


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/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/mouredev/KotlinDesdeCero/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png


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/app/src/main/res/mipmap-hdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/mouredev/KotlinDesdeCero/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-mdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/mouredev/KotlinDesdeCero/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/mouredev/KotlinDesdeCero/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/mouredev/KotlinDesdeCero/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/mouredev/KotlinDesdeCero/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png


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/.idea/codeStyles/codeStyleConfig.xml:
--------------------------------------------------------------------------------
1 | <component name="ProjectCodeStyleConfiguration">
2 |   <state>
3 |     <option name="USE_PER_PROJECT_SETTINGS" value="true" />
4 |   </state>
5 | </component>


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/app/src/main/res/values/colors.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <resources>
3 |     <color name="colorPrimary">#008577</color>
4 |     <color name="colorPrimaryDark">#00574B</color>
5 |     <color name="colorAccent">#D81B60</color>
6 | </resources>
7 | 


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/gradle/wrapper/gradle-wrapper.properties:
--------------------------------------------------------------------------------
1 | #Sun May 12 16:37:02 CEST 2019
2 | distributionBase=GRADLE_USER_HOME
3 | distributionPath=wrapper/dists
4 | zipStoreBase=GRADLE_USER_HOME
5 | zipStorePath=wrapper/dists
6 | distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip
7 | 


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/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
3 |     <background android:drawable="@drawable/ic_launcher_background"/>
4 |     <foreground android:drawable="@drawable/ic_launcher_foreground"/>
5 | </adaptive-icon>


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/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
3 |     <background android:drawable="@drawable/ic_launcher_background"/>
4 |     <foreground android:drawable="@drawable/ic_launcher_foreground"/>
5 | </adaptive-icon>


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/app/src/main/res/values/styles.xml:
--------------------------------------------------------------------------------
 1 | <resources>
 2 | 
 3 |     <!-- Base application theme. -->
 4 |     <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
 5 |         <!-- Customize your theme here. -->
 6 |         <item name="colorPrimary">@color/colorPrimary</item>
 7 |         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
 8 |         <item name="colorAccent">@color/colorAccent</item>
 9 |     </style>
10 | 
11 | </resources>
12 | 


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/app/src/test/java/com/mouredev/kotlinparaprincipiantes/ExampleUnitTest.kt:
--------------------------------------------------------------------------------
 1 | package com.mouredev.kotlinparaprincipiantes
 2 | 
 3 | import org.junit.Test
 4 | 
 5 | import org.junit.Assert.*
 6 | 
 7 | /**
 8 |  * Example local unit test, which will execute on the development machine (host).
 9 |  *
10 |  * See [testing documentation](http://d.android.com/tools/testing).
11 |  */
12 | class ExampleUnitTest {
13 |     @Test
14 |     fun addition_isCorrect() {
15 |         assertEquals(4, 2 + 2)
16 |     }
17 | }
18 | 


--------------------------------------------------------------------------------
/.idea/runConfigurations.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project version="4">
 3 |   <component name="RunConfigurationProducerService">
 4 |     <option name="ignoredProducers">
 5 |       <set>
 6 |         <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
 7 |         <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
 8 |         <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
 9 |       </set>
10 |     </option>
11 |   </component>
12 | </project>


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/app/src/main/java/com/mouredev/kotlinparaprincipiantes/Programmer.kt:
--------------------------------------------------------------------------------
 1 | package com.mouredev.kotlinparaprincipiantes
 2 | 
 3 | /**
 4 |  * Created by MoureDev by Brais Moure on 2020-03-18.
 5 |  * www.mouredev.com
 6 |  */
 7 | class Programmer(val name: String,
 8 |                  var age: Int,
 9 |                  val languages: Array<Language>,
10 |                  val friends: Array<Programmer>? = null) {
11 | 
12 |     enum class Language {
13 |         KOTLIN,
14 |         SWIFT,
15 |         JAVA,
16 |         JAVASCRIPT
17 |     }
18 | 
19 |     fun code() {
20 |         for (language in languages) {
21 |             println("Estoy programando en $language")
22 |         }
23 |     }
24 | 
25 | }


--------------------------------------------------------------------------------
/app/src/androidTest/java/com/mouredev/kotlinparaprincipiantes/ExampleInstrumentedTest.kt:
--------------------------------------------------------------------------------
 1 | package com.mouredev.kotlinparaprincipiantes
 2 | 
 3 | import androidx.test.InstrumentationRegistry
 4 | import androidx.test.runner.AndroidJUnit4
 5 | 
 6 | import org.junit.Test
 7 | import org.junit.runner.RunWith
 8 | 
 9 | import org.junit.Assert.*
10 | 
11 | /**
12 |  * Instrumented test, which will execute on an Android device.
13 |  *
14 |  * See [testing documentation](http://d.android.com/tools/testing).
15 |  */
16 | @RunWith(AndroidJUnit4::class)
17 | class ExampleInstrumentedTest {
18 |     @Test
19 |     fun useAppContext() {
20 |         // Context of the app under test.
21 |         val appContext = InstrumentationRegistry.getTargetContext()
22 |         assertEquals("com.mouredev.kotlinparaprincipiantes", appContext.packageName)
23 |     }
24 | }
25 | 


--------------------------------------------------------------------------------
/app/proguard-rules.pro:
--------------------------------------------------------------------------------
 1 | # Add project specific ProGuard rules here.
 2 | # You can control the set of applied configuration files using the
 3 | # proguardFiles setting in build.gradle.
 4 | #
 5 | # For more details, see
 6 | #   http://developer.android.com/guide/developing/tools/proguard.html
 7 | 
 8 | # If your project uses WebView with JS, uncomment the following
 9 | # and specify the fully qualified class name to the JavaScript interface
10 | # class:
11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
12 | #   public *;
13 | #}
14 | 
15 | # Uncomment this to preserve the line number information for
16 | # debugging stack traces.
17 | #-keepattributes SourceFile,LineNumberTable
18 | 
19 | # If you keep the line number information, uncomment this to
20 | # hide the original source file name.
21 | #-renamesourcefileattribute SourceFile
22 | 


--------------------------------------------------------------------------------
/app/src/main/AndroidManifest.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3 |           package="com.mouredev.kotlinparaprincipiantes">
 4 | 
 5 |     <application
 6 |             android:allowBackup="true"
 7 |             android:icon="@mipmap/ic_launcher"
 8 |             android:label="@string/app_name"
 9 |             android:roundIcon="@mipmap/ic_launcher_round"
10 |             android:supportsRtl="true"
11 |             android:theme="@style/AppTheme">
12 |         <activity android:name=".MainActivity">
13 |             <intent-filter>
14 |                 <action android:name="android.intent.action.MAIN"/>
15 | 
16 |                 <category android:name="android.intent.category.LAUNCHER"/>
17 |             </intent-filter>
18 |         </activity>
19 |     </application>
20 | 
21 | </manifest>


--------------------------------------------------------------------------------
/app/src/main/res/layout/activity_main.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <androidx.constraintlayout.widget.ConstraintLayout
 3 |         xmlns:android="http://schemas.android.com/apk/res/android"
 4 |         xmlns:tools="http://schemas.android.com/tools"
 5 |         xmlns:app="http://schemas.android.com/apk/res-auto"
 6 |         android:layout_width="match_parent"
 7 |         android:layout_height="match_parent"
 8 |         tools:context=".MainActivity">
 9 | 
10 |     <TextView
11 |             android:layout_width="wrap_content"
12 |             android:layout_height="wrap_content"
13 |             android:text="Hello World!"
14 |             app:layout_constraintBottom_toBottomOf="parent"
15 |             app:layout_constraintLeft_toLeftOf="parent"
16 |             app:layout_constraintRight_toRightOf="parent"
17 |             app:layout_constraintTop_toTopOf="parent"/>
18 | 
19 | </androidx.constraintlayout.widget.ConstraintLayout>


--------------------------------------------------------------------------------
/gradle.properties:
--------------------------------------------------------------------------------
 1 | # Project-wide Gradle settings.
 2 | # IDE (e.g. Android Studio) users:
 3 | # Gradle settings configured through the IDE *will override*
 4 | # any settings specified in this file.
 5 | # For more details on how to configure your build environment visit
 6 | # http://www.gradle.org/docs/current/userguide/build_environment.html
 7 | # Specifies the JVM arguments used for the daemon process.
 8 | # The setting is particularly useful for tweaking memory settings.
 9 | org.gradle.jvmargs=-Xmx1536m
10 | # When configured, Gradle will run in incubating parallel mode.
11 | # This option should only be used with decoupled projects. More details, visit
12 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
13 | # org.gradle.parallel=true
14 | # AndroidX package structure to make it clearer which packages are bundled with the
15 | # Android operating system, and which are packaged with your app's APK
16 | # https://developer.android.com/topic/libraries/support-library/androidx-rn
17 | android.useAndroidX=true
18 | # Automatically convert third-party libraries to use AndroidX
19 | android.enableJetifier=true
20 | # Kotlin code style for this project: "official" or "obsolete":
21 | kotlin.code.style=official
22 | 


--------------------------------------------------------------------------------
/app/build.gradle:
--------------------------------------------------------------------------------
 1 | apply plugin: 'com.android.application'
 2 | 
 3 | apply plugin: 'kotlin-android'
 4 | 
 5 | apply plugin: 'kotlin-android-extensions'
 6 | 
 7 | android {
 8 |     compileSdkVersion 28
 9 |     defaultConfig {
10 |         applicationId "com.mouredev.kotlinparaprincipiantes"
11 |         minSdkVersion 21
12 |         targetSdkVersion 28
13 |         versionCode 1
14 |         versionName "1.0"
15 |         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
16 |     }
17 |     buildTypes {
18 |         release {
19 |             minifyEnabled false
20 |             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
21 |         }
22 |     }
23 | }
24 | 
25 | dependencies {
26 |     implementation fileTree(dir: 'libs', include: ['*.jar'])
27 |     implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
28 |     implementation 'androidx.appcompat:appcompat:1.0.2'
29 |     implementation 'androidx.core:core-ktx:1.0.2'
30 |     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
31 |     testImplementation 'junit:junit:4.12'
32 |     androidTestImplementation 'androidx.test:runner:1.1.1'
33 |     androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
34 | }
35 | 


--------------------------------------------------------------------------------
/app/src/main/res/drawable-v24/ic_launcher_foreground.xml:
--------------------------------------------------------------------------------
 1 | <vector xmlns:android="http://schemas.android.com/apk/res/android"
 2 |         xmlns:aapt="http://schemas.android.com/aapt"
 3 |         android:width="108dp"
 4 |         android:height="108dp"
 5 |         android:viewportHeight="108"
 6 |         android:viewportWidth="108">
 7 |     <path
 8 |             android:fillType="evenOdd"
 9 |             android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
10 |             android:strokeColor="#00000000"
11 |             android:strokeWidth="1">
12 |         <aapt:attr name="android:fillColor">
13 |             <gradient
14 |                     android:endX="78.5885"
15 |                     android:endY="90.9159"
16 |                     android:startX="48.7653"
17 |                     android:startY="61.0927"
18 |                     android:type="linear">
19 |                 <item
20 |                         android:color="#44000000"
21 |                         android:offset="0.0"/>
22 |                 <item
23 |                         android:color="#00000000"
24 |                         android:offset="1.0"/>
25 |             </gradient>
26 |         </aapt:attr>
27 |     </path>
28 |     <path
29 |             android:fillColor="#FFFFFF"
30 |             android:fillType="nonZero"
31 |             android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
32 |             android:strokeColor="#00000000"
33 |             android:strokeWidth="1"/>
34 | </vector>
35 | 


--------------------------------------------------------------------------------
/gradlew.bat:
--------------------------------------------------------------------------------
 1 | @if "%DEBUG%" == "" @echo off
 2 | @rem ##########################################################################
 3 | @rem
 4 | @rem  Gradle startup script for Windows
 5 | @rem
 6 | @rem ##########################################################################
 7 | 
 8 | @rem Set local scope for the variables with windows NT shell
 9 | if "%OS%"=="Windows_NT" setlocal
10 | 
11 | set DIRNAME=%~dp0
12 | if "%DIRNAME%" == "" set DIRNAME=.
13 | set APP_BASE_NAME=%~n0
14 | set APP_HOME=%DIRNAME%
15 | 
16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
17 | set DEFAULT_JVM_OPTS=
18 | 
19 | @rem Find java.exe
20 | if defined JAVA_HOME goto findJavaFromJavaHome
21 | 
22 | set JAVA_EXE=java.exe
23 | %JAVA_EXE% -version >NUL 2>&1
24 | if "%ERRORLEVEL%" == "0" goto init
25 | 
26 | echo.
27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
28 | echo.
29 | echo Please set the JAVA_HOME variable in your environment to match the
30 | echo location of your Java installation.
31 | 
32 | goto fail
33 | 
34 | :findJavaFromJavaHome
35 | set JAVA_HOME=%JAVA_HOME:"=%
36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
37 | 
38 | if exist "%JAVA_EXE%" goto init
39 | 
40 | echo.
41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
42 | echo.
43 | echo Please set the JAVA_HOME variable in your environment to match the
44 | echo location of your Java installation.
45 | 
46 | goto fail
47 | 
48 | :init
49 | @rem Get command-line arguments, handling Windows variants
50 | 
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 | 
53 | :win9xME_args
54 | @rem Slurp the command line arguments.
55 | set CMD_LINE_ARGS=
56 | set _SKIP=2
57 | 
58 | :win9xME_args_slurp
59 | if "x%~1" == "x" goto execute
60 | 
61 | set CMD_LINE_ARGS=%*
62 | 
63 | :execute
64 | @rem Setup the command line
65 | 
66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
67 | 
68 | @rem Execute Gradle
69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
70 | 
71 | :end
72 | @rem End local scope for the variables with windows NT shell
73 | if "%ERRORLEVEL%"=="0" goto mainEnd
74 | 
75 | :fail
76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
77 | rem the _cmd.exe /c_ return code!
78 | if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
79 | exit /b 1
80 | 
81 | :mainEnd
82 | if "%OS%"=="Windows_NT" endlocal
83 | 
84 | :omega
85 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # KOTLIN: Curso ANDROID desde CERO para PRINCIPIANTES | Español | MoureDev by Brais Moure
 2 | [![Xcode](https://img.shields.io/badge/Android_Studio-3.x-green.svg?longCache=true&style=popout-square)]()
 3 | [![Swift](https://img.shields.io/badge/Kotlin-1.x-purple.svg?longCache=true&style=popout-square)]()
 4 | 
 5 | **`¡HOLA HACKERMEN! 👋🏼`**
 6 | 
 7 | Bienvenidos al canal de [YouTube](https://www.youtube.com/channel/UCxPD7bsocoAMq8Dj18kmGyQ?sub_confirmation=1) ***MoureDev by Brais Moure***. 
 8 | 
 9 | Soy Brais Moure, desarrollador de software freelance. Comparto tutoriales sobre desarrollo de aplicaciones **iOS** y **Android**.
10 | 
11 | ## Descripción
12 | Tutorial en el que aprenderemos Kotlin desde cero, explicando cada concepto desde su base. Utilizaremos Android Studio, el entorno de desarrollo de aplicaciones Android.
13 | 
14 | Este primer bloque básico consta de 10 clases:
15 | 
16 | * Variables y constantes
17 | * Tipos de datos
18 | * Sentencia If
19 | * Sentencia When
20 | * Arrays
21 | * Mapas o diccionarios
22 | * Bucle For y While
23 | * Null safety
24 | * Funciones
25 | * Clases
26 | 
27 | ## Videotutorial
28 | [![KOTLIN: Curso ANDROID desde CERO - VARIABLES](https://img.youtube.com/vi/hug4TNmhw78/0.jpg)](https://www.youtube.com/watch?v=hug4TNmhw78)
29 | [![KOTLIN: Curso ANDROID desde CERO - TIPOS DE DATOS](https://img.youtube.com/vi/uWwVyww30SI/0.jpg)](https://www.youtube.com/watch?v=uWwVyww30SI)
30 | [![KOTLIN: Curso ANDROID desde CERO - SENTENCIA IF (Parte 1/2)](https://img.youtube.com/vi/QUGFBYIVs4g/0.jpg)](https://www.youtube.com/watch?v=QUGFBYIVs4g)
31 | [![KOTLIN: Curso ANDROID desde CERO - SENTENCIA IF (Parte 2/2)](https://img.youtube.com/vi/udPbfzfZA_s/0.jpg)](https://www.youtube.com/watch?v=udPbfzfZA_s)
32 | [![KOTLIN: Curso ANDROID desde CERO - SENTENCIA WHEN](https://img.youtube.com/vi/ufsrPf7vao4/0.jpg)](https://www.youtube.com/watch?v=ufsrPf7vao4)
33 | [![KOTLIN: Curso ANDROID desde CERO - ARRAYS/ARREGLOS](https://img.youtube.com/vi/VHhc-ndfI-Y/0.jpg)](https://www.youtube.com/watch?v=VHhc-ndfI-Y)
34 | [![KOTLIN: Curso ANDROID desde CERO - MAPS/DICCIONARIOS](https://img.youtube.com/vi/4gGrkpArlyI/0.jpg)](https://www.youtube.com/watch?v=4gGrkpArlyI)
35 | [![KOTLIN: Curso ANDROID desde CERO - BUCLE FOR/WHILE](https://img.youtube.com/vi/ln0sub514YQ/0.jpg)](https://www.youtube.com/watch?v=ln0sub514YQ)
36 | [![KOTLIN: Curso ANDROID desde CERO - NULL SAFETY](https://img.youtube.com/vi/057JbCQ4ico/0.jpg)](https://www.youtube.com/watch?v=057JbCQ4ico)
37 | [![KOTLIN: Curso ANDROID desde CERO - FUNCIONES](https://img.youtube.com/vi/FmRdWLab5nY/0.jpg)](https://www.youtube.com/watch?v=FmRdWLab5nY)
38 | [![KOTLIN: Curso ANDROID desde CERO - CLASES (Objetos)](https://img.youtube.com/vi/pSWaEc_sn-Q/0.jpg)](https://www.youtube.com/watch?v=pSWaEc_sn-Q)
39 | 
40 | ## Requisitos
41 | * [Android Studio](https://developer.android.com/studio) 3.x
42 | * Kotlin 1.x
43 | 
44 | ## Recursos
45 | * [Cómo crear un proyecto Android en Android Studio](https://youtu.be/BQaxPwZWboA)
46 | 
47 | ## ¿Por dónde sigo?
48 | 
49 | Puedes visitar [mi canal](https://www.youtube.com/mouredevapps), en el tengo más tutoriales avanzados.
50 | 
51 | Si te interesa, también he creado un curso completo de Swift e iOS en Udemy: [https://www.udemy.com/course/swift_ios](https://www.udemy.com/course/swift_ios)
52 | 
53 | **¡GRACIAS!**
54 | 
55 | ## Encuéntrame en:
56 | 
57 | [![Web](https://img.shields.io/badge/website-MoureDev.com-blue.svg?style=for-the-badge)](https://mouredev.com/)
58 | [![YouTube](https://img.shields.io/badge/YouTube-MoureDev-red.svg?style=for-the-badge)](https://www.youtube.com/channel/UCxPD7bsocoAMq8Dj18kmGyQ)
59 | [![Twitter](https://img.shields.io/badge/twitter-@MoureDev-blue.svg?style=for-the-badge)](https://twitter.com/MoureDev)
60 | [![Facebook](https://img.shields.io/badge/Facebook-MoureDev-blue.svg?style=for-the-badge)](https://facebook.com/mouredev)
61 | [![Instagram](https://img.shields.io/badge/Instagram-MoureDev-orange.svg?style=for-the-badge)](https://instagram.com/mouredev)
62 | [![LinkedIn](https://img.shields.io/badge/LinkedIn-BraisMoure-blue.svg?style=for-the-badge)](https://www.linkedin.com/in/braismoure/)
63 | 
64 | ### Autor
65 | *Brais Moure. © 2019-2020*
66 | 


--------------------------------------------------------------------------------
/.idea/codeStyles/Project.xml:
--------------------------------------------------------------------------------
  1 | <component name="ProjectCodeStyleConfiguration">
  2 |   <code_scheme name="Project" version="173">
  3 |     <AndroidXmlCodeStyleSettings>
  4 |       <option name="ARRANGEMENT_SETTINGS_MIGRATED_TO_191" value="true" />
  5 |     </AndroidXmlCodeStyleSettings>
  6 |     <JetCodeStyleSettings>
  7 |       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
  8 |     </JetCodeStyleSettings>
  9 |     <codeStyleSettings language="XML">
 10 |       <arrangement>
 11 |         <rules>
 12 |           <section>
 13 |             <rule>
 14 |               <match>
 15 |                 <AND>
 16 |                   <NAME>xmlns:android</NAME>
 17 |                   <XML_ATTRIBUTE />
 18 |                   <XML_NAMESPACE>^$</XML_NAMESPACE>
 19 |                 </AND>
 20 |               </match>
 21 |             </rule>
 22 |           </section>
 23 |           <section>
 24 |             <rule>
 25 |               <match>
 26 |                 <AND>
 27 |                   <NAME>xmlns:.*</NAME>
 28 |                   <XML_ATTRIBUTE />
 29 |                   <XML_NAMESPACE>^$</XML_NAMESPACE>
 30 |                 </AND>
 31 |               </match>
 32 |               <order>BY_NAME</order>
 33 |             </rule>
 34 |           </section>
 35 |           <section>
 36 |             <rule>
 37 |               <match>
 38 |                 <AND>
 39 |                   <NAME>.*:id</NAME>
 40 |                   <XML_ATTRIBUTE />
 41 |                   <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
 42 |                 </AND>
 43 |               </match>
 44 |             </rule>
 45 |           </section>
 46 |           <section>
 47 |             <rule>
 48 |               <match>
 49 |                 <AND>
 50 |                   <NAME>.*:name</NAME>
 51 |                   <XML_ATTRIBUTE />
 52 |                   <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
 53 |                 </AND>
 54 |               </match>
 55 |             </rule>
 56 |           </section>
 57 |           <section>
 58 |             <rule>
 59 |               <match>
 60 |                 <AND>
 61 |                   <NAME>name</NAME>
 62 |                   <XML_ATTRIBUTE />
 63 |                   <XML_NAMESPACE>^$</XML_NAMESPACE>
 64 |                 </AND>
 65 |               </match>
 66 |             </rule>
 67 |           </section>
 68 |           <section>
 69 |             <rule>
 70 |               <match>
 71 |                 <AND>
 72 |                   <NAME>style</NAME>
 73 |                   <XML_ATTRIBUTE />
 74 |                   <XML_NAMESPACE>^$</XML_NAMESPACE>
 75 |                 </AND>
 76 |               </match>
 77 |             </rule>
 78 |           </section>
 79 |           <section>
 80 |             <rule>
 81 |               <match>
 82 |                 <AND>
 83 |                   <NAME>.*</NAME>
 84 |                   <XML_ATTRIBUTE />
 85 |                   <XML_NAMESPACE>^$</XML_NAMESPACE>
 86 |                 </AND>
 87 |               </match>
 88 |               <order>BY_NAME</order>
 89 |             </rule>
 90 |           </section>
 91 |           <section>
 92 |             <rule>
 93 |               <match>
 94 |                 <AND>
 95 |                   <NAME>.*</NAME>
 96 |                   <XML_ATTRIBUTE />
 97 |                   <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
 98 |                 </AND>
 99 |               </match>
100 |               <order>ANDROID_ATTRIBUTE_ORDER</order>
101 |             </rule>
102 |           </section>
103 |           <section>
104 |             <rule>
105 |               <match>
106 |                 <AND>
107 |                   <NAME>.*</NAME>
108 |                   <XML_ATTRIBUTE />
109 |                   <XML_NAMESPACE>.*</XML_NAMESPACE>
110 |                 </AND>
111 |               </match>
112 |               <order>BY_NAME</order>
113 |             </rule>
114 |           </section>
115 |         </rules>
116 |       </arrangement>
117 |     </codeStyleSettings>
118 |     <codeStyleSettings language="kotlin">
119 |       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
120 |     </codeStyleSettings>
121 |   </code_scheme>
122 | </component>


--------------------------------------------------------------------------------
/app/src/main/res/drawable/ic_launcher_background.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <vector
 3 |         xmlns:android="http://schemas.android.com/apk/res/android"
 4 |         android:height="108dp"
 5 |         android:width="108dp"
 6 |         android:viewportHeight="108"
 7 |         android:viewportWidth="108">
 8 |     <path android:fillColor="#008577"
 9 |           android:pathData="M0,0h108v108h-108z"/>
10 |     <path android:fillColor="#00000000" android:pathData="M9,0L9,108"
11 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
12 |     <path android:fillColor="#00000000" android:pathData="M19,0L19,108"
13 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
14 |     <path android:fillColor="#00000000" android:pathData="M29,0L29,108"
15 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
16 |     <path android:fillColor="#00000000" android:pathData="M39,0L39,108"
17 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
18 |     <path android:fillColor="#00000000" android:pathData="M49,0L49,108"
19 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
20 |     <path android:fillColor="#00000000" android:pathData="M59,0L59,108"
21 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
22 |     <path android:fillColor="#00000000" android:pathData="M69,0L69,108"
23 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
24 |     <path android:fillColor="#00000000" android:pathData="M79,0L79,108"
25 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
26 |     <path android:fillColor="#00000000" android:pathData="M89,0L89,108"
27 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
28 |     <path android:fillColor="#00000000" android:pathData="M99,0L99,108"
29 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
30 |     <path android:fillColor="#00000000" android:pathData="M0,9L108,9"
31 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
32 |     <path android:fillColor="#00000000" android:pathData="M0,19L108,19"
33 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
34 |     <path android:fillColor="#00000000" android:pathData="M0,29L108,29"
35 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
36 |     <path android:fillColor="#00000000" android:pathData="M0,39L108,39"
37 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
38 |     <path android:fillColor="#00000000" android:pathData="M0,49L108,49"
39 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
40 |     <path android:fillColor="#00000000" android:pathData="M0,59L108,59"
41 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
42 |     <path android:fillColor="#00000000" android:pathData="M0,69L108,69"
43 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
44 |     <path android:fillColor="#00000000" android:pathData="M0,79L108,79"
45 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
46 |     <path android:fillColor="#00000000" android:pathData="M0,89L108,89"
47 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
48 |     <path android:fillColor="#00000000" android:pathData="M0,99L108,99"
49 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
50 |     <path android:fillColor="#00000000" android:pathData="M19,29L89,29"
51 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
52 |     <path android:fillColor="#00000000" android:pathData="M19,39L89,39"
53 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
54 |     <path android:fillColor="#00000000" android:pathData="M19,49L89,49"
55 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
56 |     <path android:fillColor="#00000000" android:pathData="M19,59L89,59"
57 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
58 |     <path android:fillColor="#00000000" android:pathData="M19,69L89,69"
59 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
60 |     <path android:fillColor="#00000000" android:pathData="M19,79L89,79"
61 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
62 |     <path android:fillColor="#00000000" android:pathData="M29,19L29,89"
63 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
64 |     <path android:fillColor="#00000000" android:pathData="M39,19L39,89"
65 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
66 |     <path android:fillColor="#00000000" android:pathData="M49,19L49,89"
67 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
68 |     <path android:fillColor="#00000000" android:pathData="M59,19L59,89"
69 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
70 |     <path android:fillColor="#00000000" android:pathData="M69,19L69,89"
71 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
72 |     <path android:fillColor="#00000000" android:pathData="M79,19L79,89"
73 |           android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
74 | </vector>
75 | 


--------------------------------------------------------------------------------
/gradlew:
--------------------------------------------------------------------------------
  1 | #!/usr/bin/env sh
  2 | 
  3 | ##############################################################################
  4 | ##
  5 | ##  Gradle start up script for UN*X
  6 | ##
  7 | ##############################################################################
  8 | 
  9 | # Attempt to set APP_HOME
 10 | # Resolve links: $0 may be a link
 11 | PRG="$0"
 12 | # Need this for relative symlinks.
 13 | while [ -h "$PRG" ] ; do
 14 |     ls=`ls -ld "$PRG"`
 15 |     link=`expr "$ls" : '.*-> \(.*\)$'`
 16 |     if expr "$link" : '/.*' > /dev/null; then
 17 |         PRG="$link"
 18 |     else
 19 |         PRG=`dirname "$PRG"`"/$link"
 20 |     fi
 21 | done
 22 | SAVED="`pwd`"
 23 | cd "`dirname \"$PRG\"`/" >/dev/null
 24 | APP_HOME="`pwd -P`"
 25 | cd "$SAVED" >/dev/null
 26 | 
 27 | APP_NAME="Gradle"
 28 | APP_BASE_NAME=`basename "$0"`
 29 | 
 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 31 | DEFAULT_JVM_OPTS=""
 32 | 
 33 | # Use the maximum available, or set MAX_FD != -1 to use that value.
 34 | MAX_FD="maximum"
 35 | 
 36 | warn () {
 37 |     echo "$*"
 38 | }
 39 | 
 40 | die () {
 41 |     echo
 42 |     echo "$*"
 43 |     echo
 44 |     exit 1
 45 | }
 46 | 
 47 | # OS specific support (must be 'true' or 'false').
 48 | cygwin=false
 49 | msys=false
 50 | darwin=false
 51 | nonstop=false
 52 | case "`uname`" in
 53 |   CYGWIN* )
 54 |     cygwin=true
 55 |     ;;
 56 |   Darwin* )
 57 |     darwin=true
 58 |     ;;
 59 |   MINGW* )
 60 |     msys=true
 61 |     ;;
 62 |   NONSTOP* )
 63 |     nonstop=true
 64 |     ;;
 65 | esac
 66 | 
 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 68 | 
 69 | # Determine the Java command to use to start the JVM.
 70 | if [ -n "$JAVA_HOME" ] ; then
 71 |     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
 72 |         # IBM's JDK on AIX uses strange locations for the executables
 73 |         JAVACMD="$JAVA_HOME/jre/sh/java"
 74 |     else
 75 |         JAVACMD="$JAVA_HOME/bin/java"
 76 |     fi
 77 |     if [ ! -x "$JAVACMD" ] ; then
 78 |         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
 79 | 
 80 | Please set the JAVA_HOME variable in your environment to match the
 81 | location of your Java installation."
 82 |     fi
 83 | else
 84 |     JAVACMD="java"
 85 |     which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 86 | 
 87 | Please set the JAVA_HOME variable in your environment to match the
 88 | location of your Java installation."
 89 | fi
 90 | 
 91 | # Increase the maximum file descriptors if we can.
 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
 93 |     MAX_FD_LIMIT=`ulimit -H -n`
 94 |     if [ $? -eq 0 ] ; then
 95 |         if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
 96 |             MAX_FD="$MAX_FD_LIMIT"
 97 |         fi
 98 |         ulimit -n $MAX_FD
 99 |         if [ $? -ne 0 ] ; then
100 |             warn "Could not set maximum file descriptor limit: $MAX_FD"
101 |         fi
102 |     else
103 |         warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
104 |     fi
105 | fi
106 | 
107 | # For Darwin, add options to specify how the application appears in the dock
108 | if $darwin; then
109 |     GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
110 | fi
111 | 
112 | # For Cygwin, switch paths to Windows format before running java
113 | if $cygwin ; then
114 |     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
115 |     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
116 |     JAVACMD=`cygpath --unix "$JAVACMD"`
117 | 
118 |     # We build the pattern for arguments to be converted via cygpath
119 |     ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
120 |     SEP=""
121 |     for dir in $ROOTDIRSRAW ; do
122 |         ROOTDIRS="$ROOTDIRS$SEP$dir"
123 |         SEP="|"
124 |     done
125 |     OURCYGPATTERN="(^($ROOTDIRS))"
126 |     # Add a user-defined pattern to the cygpath arguments
127 |     if [ "$GRADLE_CYGPATTERN" != "" ] ; then
128 |         OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
129 |     fi
130 |     # Now convert the arguments - kludge to limit ourselves to /bin/sh
131 |     i=0
132 |     for arg in "$@" ; do
133 |         CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
134 |         CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
135 | 
136 |         if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
137 |             eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
138 |         else
139 |             eval `echo args$i`="\"$arg\""
140 |         fi
141 |         i=$((i+1))
142 |     done
143 |     case $i in
144 |         (0) set -- ;;
145 |         (1) set -- "$args0" ;;
146 |         (2) set -- "$args0" "$args1" ;;
147 |         (3) set -- "$args0" "$args1" "$args2" ;;
148 |         (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
149 |         (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
150 |         (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
151 |         (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
152 |         (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
153 |         (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
154 |     esac
155 | fi
156 | 
157 | # Escape application args
158 | save () {
159 |     for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
160 |     echo " "
161 | }
162 | APP_ARGS=$(save "$@")
163 | 
164 | # Collect all arguments for the java command, following the shell quoting and substitution rules
165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
166 | 
167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
169 |   cd "$(dirname "$0")"
170 | fi
171 | 
172 | exec "$JAVACMD" "$@"
173 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
  1 | 
  2 | # Created by https://www.gitignore.io/api/gradle,android,intellij,androidstudio
  3 | # Edit at https://www.gitignore.io/?templates=gradle,android,intellij,androidstudio
  4 | 
  5 | ### Android ###
  6 | # Built application files
  7 | *.apk
  8 | *.ap_
  9 | *.aab
 10 | 
 11 | # Files for the ART/Dalvik VM
 12 | *.dex
 13 | 
 14 | # Java class files
 15 | *.class
 16 | 
 17 | # Generated files
 18 | bin/
 19 | gen/
 20 | out/
 21 | release/
 22 | 
 23 | # Gradle files
 24 | .gradle/
 25 | build/
 26 | 
 27 | # Local configuration file (sdk path, etc)
 28 | local.properties
 29 | 
 30 | # Proguard folder generated by Eclipse
 31 | proguard/
 32 | 
 33 | # Log Files
 34 | *.log
 35 | 
 36 | # Android Studio Navigation editor temp files
 37 | .navigation/
 38 | 
 39 | # Android Studio captures folder
 40 | captures/
 41 | 
 42 | # IntelliJ
 43 | *.iml
 44 | .idea/workspace.xml
 45 | .idea/tasks.xml
 46 | .idea/gradle.xml
 47 | .idea/assetWizardSettings.xml
 48 | .idea/dictionaries
 49 | .idea/libraries
 50 | # Android Studio 3 in .gitignore file.
 51 | .idea/caches
 52 | .idea/modules.xml
 53 | # Comment next line if keeping position of elements in Navigation Editor is relevant for you
 54 | .idea/navEditor.xml
 55 | 
 56 | # Keystore files
 57 | # Uncomment the following lines if you do not want to check your keystore files in.
 58 | #*.jks
 59 | #*.keystore
 60 | 
 61 | # External native build folder generated in Android Studio 2.2 and later
 62 | .externalNativeBuild
 63 | 
 64 | # Google Services (e.g. APIs or Firebase)
 65 | # google-services.json
 66 | 
 67 | # Freeline
 68 | freeline.py
 69 | freeline/
 70 | freeline_project_description.json
 71 | 
 72 | # fastlane
 73 | fastlane/report.xml
 74 | fastlane/Preview.html
 75 | fastlane/screenshots
 76 | fastlane/test_output
 77 | fastlane/readme.md
 78 | 
 79 | # Version control
 80 | vcs.xml
 81 | 
 82 | # lint
 83 | lint/intermediates/
 84 | lint/generated/
 85 | lint/outputs/
 86 | lint/tmp/
 87 | # lint/reports/
 88 | 
 89 | ### Android Patch ###
 90 | gen-external-apklibs
 91 | output.json
 92 | 
 93 | # Replacement of .externalNativeBuild directories introduced
 94 | # with Android Studio 3.5.
 95 | .cxx/
 96 | 
 97 | ### Intellij ###
 98 | # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and WebStorm
 99 | # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
100 | 
101 | # User-specific stuff
102 | .idea/**/workspace.xml
103 | .idea/**/tasks.xml
104 | .idea/**/usage.statistics.xml
105 | .idea/**/dictionaries
106 | .idea/**/shelf
107 | 
108 | # Generated files
109 | .idea/**/contentModel.xml
110 | 
111 | # Sensitive or high-churn files
112 | .idea/**/dataSources/
113 | .idea/**/dataSources.ids
114 | .idea/**/dataSources.local.xml
115 | .idea/**/sqlDataSources.xml
116 | .idea/**/dynamic.xml
117 | .idea/**/uiDesigner.xml
118 | .idea/**/dbnavigator.xml
119 | 
120 | # Gradle
121 | .idea/**/gradle.xml
122 | .idea/**/libraries
123 | 
124 | # Gradle and Maven with auto-import
125 | # When using Gradle or Maven with auto-import, you should exclude module files,
126 | # since they will be recreated, and may cause churn.  Uncomment if using
127 | # auto-import.
128 | # .idea/modules.xml
129 | # .idea/*.iml
130 | # .idea/modules
131 | # *.iml
132 | # *.ipr
133 | 
134 | # CMake
135 | cmake-build-*/
136 | 
137 | # Mongo Explorer plugin
138 | .idea/**/mongoSettings.xml
139 | 
140 | # File-based project format
141 | *.iws
142 | 
143 | # IntelliJ
144 | 
145 | # mpeltonen/sbt-idea plugin
146 | .idea_modules/
147 | 
148 | # JIRA plugin
149 | atlassian-ide-plugin.xml
150 | 
151 | # Cursive Clojure plugin
152 | .idea/replstate.xml
153 | 
154 | # Crashlytics plugin (for Android Studio and IntelliJ)
155 | com_crashlytics_export_strings.xml
156 | crashlytics.properties
157 | crashlytics-build.properties
158 | fabric.properties
159 | 
160 | # Editor-based Rest Client
161 | .idea/httpRequests
162 | 
163 | # Android studio 3.1+ serialized cache file
164 | .idea/caches/build_file_checksums.ser
165 | 
166 | ### Intellij Patch ###
167 | # Comment Reason: https://github.com/joeblau/gitignore.io/issues/186#issuecomment-215987721
168 | 
169 | # *.iml
170 | # modules.xml
171 | # .idea/misc.xml
172 | # *.ipr
173 | 
174 | # Sonarlint plugin
175 | .idea/**/sonarlint/
176 | 
177 | # SonarQube Plugin
178 | .idea/**/sonarIssues.xml
179 | 
180 | # Markdown Navigator plugin
181 | .idea/**/markdown-navigator.xml
182 | .idea/**/markdown-navigator/
183 | 
184 | ### Gradle ###
185 | .gradle
186 | 
187 | # Ignore Gradle GUI config
188 | gradle-app.setting
189 | 
190 | # Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
191 | !gradle-wrapper.jar
192 | 
193 | # Cache of project
194 | .gradletasknamecache
195 | 
196 | # # Work around https://youtrack.jetbrains.com/issue/IDEA-116898
197 | # gradle/wrapper/gradle-wrapper.properties
198 | 
199 | ### Gradle Patch ###
200 | **/build/
201 | 
202 | ### AndroidStudio ###
203 | # Covers files to be ignored for android development using Android Studio.
204 | 
205 | # Built application files
206 | 
207 | # Files for the ART/Dalvik VM
208 | 
209 | # Java class files
210 | 
211 | # Generated files
212 | 
213 | # Gradle files
214 | 
215 | # Signing files
216 | .signing/
217 | 
218 | # Local configuration file (sdk path, etc)
219 | 
220 | # Proguard folder generated by Eclipse
221 | 
222 | # Log Files
223 | 
224 | # Android Studio
225 | /*/build/
226 | /*/local.properties
227 | /*/out
228 | /*/*/build
229 | /*/*/production
230 | *.ipr
231 | *~
232 | *.swp
233 | 
234 | # Android Patch
235 | 
236 | # External native build folder generated in Android Studio 2.2 and later
237 | 
238 | # NDK
239 | obj/
240 | 
241 | # IntelliJ IDEA
242 | /out/
243 | 
244 | # User-specific configurations
245 | .idea/caches/
246 | .idea/libraries/
247 | .idea/shelf/
248 | .idea/.name
249 | .idea/compiler.xml
250 | .idea/copyright/profiles_settings.xml
251 | .idea/encodings.xml
252 | .idea/misc.xml
253 | .idea/scopes/scope_settings.xml
254 | .idea/vcs.xml
255 | .idea/jsLibraryMappings.xml
256 | .idea/datasources.xml
257 | .idea/dataSources.ids
258 | .idea/sqlDataSources.xml
259 | .idea/dynamic.xml
260 | .idea/uiDesigner.xml
261 | 
262 | # OS-specific files
263 | .DS_Store
264 | .DS_Store?
265 | ._*
266 | .Spotlight-V100
267 | .Trashes
268 | ehthumbs.db
269 | Thumbs.db
270 | 
271 | # Legacy Eclipse project files
272 | .classpath
273 | .project
274 | .cproject
275 | .settings/
276 | 
277 | # Mobile Tools for Java (J2ME)
278 | .mtj.tmp/
279 | 
280 | # Package Files #
281 | *.war
282 | *.ear
283 | 
284 | # virtual machine crash logs (Reference: http://www.java.com/en/download/help/error_hotspot.xml)
285 | hs_err_pid*
286 | 
287 | ## Plugin-specific files:
288 | 
289 | # mpeltonen/sbt-idea plugin
290 | 
291 | # JIRA plugin
292 | 
293 | # Mongo Explorer plugin
294 | .idea/mongoSettings.xml
295 | 
296 | # Crashlytics plugin (for Android Studio and IntelliJ)
297 | 
298 | ### AndroidStudio Patch ###
299 | 
300 | !/gradle/wrapper/gradle-wrapper.jar
301 | 
302 | # End of https://www.gitignore.io/api/gradle,android,intellij,androidstudio


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/app/src/main/java/com/mouredev/kotlinparaprincipiantes/MainActivity.kt:
--------------------------------------------------------------------------------
  1 | package com.mouredev.kotlinparaprincipiantes
  2 | 
  3 | import androidx.appcompat.app.AppCompatActivity
  4 | import android.os.Bundle
  5 | 
  6 | class MainActivity : AppCompatActivity() {
  7 | 
  8 |     override fun onCreate(savedInstanceState: Bundle?) {
  9 |         super.onCreate(savedInstanceState)
 10 |         setContentView(R.layout.activity_main)
 11 | 
 12 |         // Lección 1
 13 |         //variablesYConstantes()
 14 | 
 15 |         // Lección 2
 16 |         //tiposDeDatos()
 17 | 
 18 |         // Lección 3
 19 |         //sentenciaIf()
 20 | 
 21 |         // Lección 4
 22 |         //sentenciaWhen()
 23 | 
 24 |         // Lección 5
 25 |         //arrays()
 26 | 
 27 |         // Lección 6
 28 |         //maps()
 29 | 
 30 |         // Lección 7
 31 |         //loops()
 32 | 
 33 |         // Lección 8
 34 |         //nullSafety()
 35 | 
 36 |         // Lección 9
 37 |         //funciones()
 38 | 
 39 |         // Lección 10
 40 |         classes()
 41 |     }
 42 | 
 43 |     /*
 44 |     Aquí vamos a hablar de variables y constantes
 45 |      */
 46 |     private fun variablesYConstantes() {
 47 | 
 48 |         // Variables
 49 | 
 50 |         var myFirstVariable = "Hello Hackermen!"
 51 |         var myFirstNumber = 1
 52 | 
 53 |         println(myFirstVariable)
 54 | 
 55 |         myFirstVariable = "Bienvenidos a MoureDev"
 56 | 
 57 |         println(myFirstVariable)
 58 | 
 59 |         // No podemos asignar un tipo Int a una variable de tipo String
 60 |         //myFirstVariable = 1
 61 | 
 62 |         var mySecondVariable = "Suscríbete!"
 63 | 
 64 |         println(mySecondVariable)
 65 | 
 66 |         mySecondVariable = myFirstVariable
 67 | 
 68 |         println(mySecondVariable)
 69 | 
 70 |         myFirstVariable = "¿Ya te has suscrito?"
 71 | 
 72 |         println(myFirstVariable)
 73 | 
 74 |         // Constantes
 75 | 
 76 |         val myFirstConstant = "¿Te ha gustado el tutorial?"
 77 | 
 78 |         println(myFirstConstant)
 79 | 
 80 |         // Una constante no puede modificar su valor
 81 |         //myFirstConstant = "Si te ha gustado, dale a LIKE"
 82 | 
 83 |         val mySecondConstant = myFirstVariable
 84 | 
 85 |         println(mySecondConstant)
 86 |     }
 87 | 
 88 |     /*
 89 |     Aquí vamos hablar de tipos de datos (data types)
 90 |      */
 91 |     private fun tiposDeDatos() {
 92 | 
 93 |         // String
 94 | 
 95 |         val myString: String = "Hola Hackermen!"
 96 |         val myString2 = "Bienvenidos a MoureDev"
 97 |         val myString3 = myString + " " + myString2
 98 |         println(myString3)
 99 | 
100 |         // Enteros (Byte, Short, Int, Long)
101 | 
102 |         val myInt: Int = 1
103 |         val myInt2 = 2
104 |         val myInt3 = myInt + myInt2
105 |         println(myInt3)
106 | 
107 |         // Decimales (Float, Double)
108 | 
109 |         val myFloat: Float = 1.5f
110 |         val myDouble = 1.5
111 |         val myDouble2 = 2.6
112 |         val myDouble3 = 1 // En realidad este es Int
113 |         val myDouble4 = myDouble + myDouble2 + myDouble3
114 |         println(myDouble4)
115 | 
116 |         // Boolean (Bool)
117 |         val myBool: Boolean = true
118 |         val myBool2 = false
119 |         //val myBool3 = myBool + myBool2
120 |         println(myBool == myBool2)
121 |         println(myBool && myBool2)
122 | 
123 |     }
124 | 
125 |     /*
126 |     Aquí vamos a hablar de la sentencia if
127 |      */
128 |     private fun sentenciaIf() {
129 | 
130 |         val myNumber = 71
131 | 
132 |         // Operadores condicionales
133 |         // > mayor que
134 |         // < menor que
135 |         // >= (> =) mayor o igual que
136 |         // <= (< =) menor o igual que
137 |         // == (= =) igualdad
138 |         // != (! =) desigualdad
139 | 
140 |         // Operadores lógicos
141 |         // && operador "y"
142 |         // || operador "o"
143 |         // ! operador "no"
144 | 
145 |         if (!(myNumber <= 10 && myNumber > 5) || myNumber == 53) {
146 |             // Sentencia if
147 |             println("$myNumber es menor o igual que 10 y mayor que 5 o es igual a 53")
148 | 
149 |         } else if(myNumber == 60) {
150 | 
151 |             // Sentencia else if
152 |             println("$myNumber es igual a 60")
153 | 
154 |         } else if(myNumber != 70) {
155 | 
156 |             // Sentencia else if
157 |             println("$myNumber no es igual a 70")
158 | 
159 |         } else {
160 |             // Sentencia else
161 |             println("$myNumber es mayor que 10 o menor o igual que 5 y no es igual a 53")
162 |         }
163 | 
164 |     }
165 | 
166 |     /*
167 |     Aquí vamos a hablar de la sentencia when
168 |      */
169 |     fun sentenciaWhen() {
170 | 
171 |         // When con String
172 |         val country = "Italia"
173 | 
174 |         when (country) {
175 |             "España", "Mexico", "Perú", "Colombia", "Argentina" -> {
176 |                 println("El idioma es Español")
177 |             } "EEUU" -> {
178 |                 println("El idioma es Inglés")
179 |             } "Francia" -> {
180 |                 println("El idioma es Francés")
181 |             } else -> {
182 |                 println("No conocemos el idioma")
183 |             }
184 |         }
185 | 
186 |         // When con Int
187 |         val age = 100
188 | 
189 |         when (age) {
190 |             0, 1, 2 -> {
191 |                 println("Eres un bebé")
192 |             } in 3..10 -> {
193 |                 println("Eres un niño")
194 |             } in 11..17 -> {
195 |                 println("Eres un adolescente")
196 |             } in 18..69 -> {
197 |                 println("Eres adulto")
198 |             } in 70..99 -> {
199 |                 println("Eres anciano")
200 |             } else -> {
201 |                 println("😱")
202 |             }
203 |         }
204 | 
205 |     }
206 | 
207 |     /*
208 |     Aquí vamos a hablar de arrays o arreglos
209 |      */
210 |     fun arrays() {
211 | 
212 |         val name = "Brais"
213 |         val surname = "Moure"
214 |         val company = "MoureDev"
215 |         val age = "32"
216 | 
217 |         // Creación de un Array
218 | 
219 |         val myArray = arrayListOf<String>()
220 | 
221 |         // Añadir datos de uno en uno
222 | 
223 |         myArray.add(name)
224 |         myArray.add(surname)
225 |         myArray.add(company)
226 |         myArray.add(age)
227 |         //myArray.add(age)
228 |         //myArray.add(age)
229 | 
230 |         println(myArray)
231 | 
232 |         // Añadir un conjunto de datos
233 | 
234 |         myArray.addAll(listOf("Hola", "Bienvenidos al tutorial"))
235 | 
236 |         println(myArray)
237 | 
238 |         // Acceso a datos
239 | 
240 |         val myCompany = myArray[2]
241 | 
242 |         println(myCompany)
243 | 
244 |         // Modificación de datos
245 | 
246 |         myArray[5] = "Suscríbete y activa la campana"
247 | 
248 |         println(myArray)
249 | 
250 |         // Eliminar datos
251 | 
252 |         myArray.removeAt(4)
253 | 
254 |         println(myArray)
255 | 
256 |         // Recorrer datos
257 | 
258 |         myArray.forEach {
259 |             println(it)
260 |         }
261 | 
262 |         // Otras operaciones
263 | 
264 |         println(myArray.count())
265 | 
266 |         myArray.clear()
267 | 
268 |         println(myArray.count())
269 | 
270 |         // myArray.first()
271 |         // myArray.last()
272 |         // myArray.sort()
273 |     }
274 | 
275 |     /*
276 |     Aquí vamos a hablar de mapas, también llamados diccionarios
277 |      */
278 |     fun maps() {
279 | 
280 |         // Sintaxis
281 |         var myMap: Map<String,Int> = mapOf()
282 |         println(myMap)
283 | 
284 |         // Añadir elementos
285 |         myMap = mutableMapOf("Brais" to 1, "Pedro" to 2, "Sara" to 5)
286 |         println(myMap)
287 | 
288 |         // Añadir un solo valor
289 |         myMap["Ana"] = 7
290 |         myMap.put("María",8)
291 |         println(myMap)
292 | 
293 |         // Actualización de un dato
294 |         myMap.put("Brais",3)
295 |         myMap["Brais"] = 4
296 |         println(myMap)
297 | 
298 |         myMap.put("Marcos",3)
299 |         println(myMap)
300 | 
301 |         // Acceso a un dato
302 |         println(myMap["Brais"])
303 | 
304 |         // Eliminar un dato
305 |         myMap.remove("Brais")
306 |         println(myMap)
307 |     }
308 | 
309 |     /*
310 |     Aquí vamos a hablar de loops, también llamados bucles
311 |     */
312 |     private fun loops() {
313 | 
314 |         // Bucles
315 | 
316 |         val myArray = listOf("Hola", "Bienvenidos al tutorial", "Suscríbete!")
317 |         val myMap = mutableMapOf("Brais" to 1, "Pedro" to 2, "Sara" to 5)
318 | 
319 |         // For
320 | 
321 |         for (myString in myArray) {
322 |             println(myString)
323 |         }
324 | 
325 |         for (myElement in myMap) {
326 |             println("${myElement.key}-${myElement.value}")
327 |         }
328 | 
329 |         for (x in 0..10) {
330 |             println(x)
331 |         }
332 | 
333 |         for (x in 9 until 30) {
334 |             println(x)
335 |         }
336 | 
337 |         for (x in 0..10 step 2) {
338 |             println(x)
339 |         }
340 | 
341 |         for (x in 10 downTo 0 step 3) {
342 |             println(x)
343 |         }
344 | 
345 |         val myNumericArray = (0..20)
346 |         for (myNum in myNumericArray) {
347 |             println(myNum)
348 |         }
349 | 
350 |         // While
351 | 
352 |         var x = 0
353 | 
354 |         while (x < 10) {
355 |             println(x)
356 |             x += 2
357 |         }
358 | 
359 |     }
360 | 
361 |     /*
362 |     Aquí vamos a hablar de seguridad contra nulos (Null Safety)
363 |      */
364 |     fun nullSafety() {
365 | 
366 |         var myString = "MoureDev"
367 |         // myString = null Esto daría un error de compilación
368 |         println(myString)
369 | 
370 |         // Variable null safety
371 |         var mySafetyString: String? = "MoureDev null safety"
372 |         mySafetyString = null
373 |         println(mySafetyString)
374 | 
375 |         //mySafetyString = "Suscríbete!"
376 |         //println(mySafetyString)
377 | 
378 |         /*if (mySafetyString != null) {
379 |             println(mySafetyString!!)
380 |         } else {
381 |             println(mySafetyString)
382 |         }*/
383 | 
384 |         // Safe call
385 | 
386 |         println(mySafetyString?.length)
387 | 
388 |         mySafetyString?.let {
389 |             println(it)
390 |         } ?: run {
391 |             println(mySafetyString)
392 |         }
393 | 
394 |     }
395 | 
396 |     /*
397 |     Aquí vamos a hablar de funciones
398 |     */
399 |     fun funciones() {
400 | 
401 |         sayHello()
402 |         sayHello()
403 |         sayHello()
404 | 
405 |         sayMyName("Brais")
406 |         sayMyName("Pedro")
407 |         sayMyName("Sara")
408 | 
409 |         sayMyNameAndAge("Brais", 32)
410 | 
411 |         val sumResult = sumTwoNumbers(10, 5)
412 |         println(sumResult)
413 | 
414 |         println(sumTwoNumbers(15, 9))
415 | 
416 |         println(sumTwoNumbers(10, sumTwoNumbers(5, 5)))
417 |     }
418 | 
419 |     // Función simple
420 |     fun sayHello() {
421 |         println("Hola!")
422 |     }
423 | 
424 |     // Funciones con un parámetro de entrada
425 |     fun sayMyName(name: String) {
426 |         println("Hola, mi nombre es $name")
427 |     }
428 | 
429 |     // Funciones con más de un parámetro de entrada
430 |     fun sayMyNameAndAge(name: String, age: Int) {
431 |         println("Hola, mi nombre es $name y mi edad es $age")
432 |     }
433 | 
434 |     // Funciones con un valor de retorno
435 |     fun sumTwoNumbers(firstNumber: Int, secondNumber: Int) : Int {
436 |         val sum = firstNumber + secondNumber
437 |         return sum
438 |     }
439 | 
440 |     /*
441 |     Aquí vamos a hablar de las clases
442 |     */
443 |     fun classes() {
444 | 
445 |         val brais = Programmer("Brais", 32, arrayOf(Programmer.Language.KOTLIN, Programmer.Language.SWIFT))
446 |         println(brais.name)
447 | 
448 |         brais.age = 40
449 |         brais.code()
450 | 
451 |         val sara = Programmer("Sara", 35, arrayOf(Programmer.Language.JAVA), arrayOf(brais))
452 |         sara.code()
453 | 
454 |         println("${sara.friends?.first()?.name} es amigo de ${sara.name}")
455 |     }
456 | 
457 | }
458 | 


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