Modifications to the following files are needed for Android Studio 3.0 Canary 1
- app/build.gradle Select all
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
android {
compileSdkVersion 23
buildToolsVersion '26.0.0 rc2' // for Android Studio 3.0 Canary 1
defaultConfig {
applicationId "com.example.peamoncalculator"
minSdkVersion 22
targetSdkVersion 23
versionCode 1
versionName "1.0"
archivesBaseName = "PeamonCalculator" + versionName
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:23+'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.android.support:design:23+'
// Required for local unit tests
testCompile 'junit:junit:4.12'
// Required for instrumented tests
androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.2'
androidTestCompile 'com.android.support.test:runner:0.5'
androidTestCompile 'com.android.support:support-annotations:23+'
compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
}
repositories {
mavenCentral()
}
// add these tasks in run config to make kotlin test working
// for junit
task copyTestClasses(type: Copy) {
from "build/tmp/kotlin-classes/debugUnitTest"
into "build/intermediates/classes/debug"
}
// for instrumented test
task copySdkClasses(type: Copy) {
from "build/tmp/kotlin-classes/debug"
into "build/intermediates/classes/debug"
}
afterEvaluate {
compileDebugUnitTestSources.dependsOn copyTestClasses
compileReleaseUnitTestSources.dependsOn copyTestClasses
compileDebugAndroidTestSources.dependsOn copySdkClasses
}
- gradle-wrapper.properties Select all
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-4.0-milestone-1-all.zip
- Project/build.gradle Select all
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext.kotlin_version = '1.1.2-4'
repositories {
maven { url 'https://maven.google.com' }
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.0.0-alpha1'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
maven { url 'https://maven.google.com' }
mavenCentral()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
- app/src/main/java/com/example/peamoncalculator/MainActivity.kt Select all
// Converted to Kotlin for Android Studio 3.0 Canary 1
package com.example.peamoncalculator
import android.app.Activity
import android.os.Bundle
import android.support.design.widget.FloatingActionButton
import android.support.design.widget.Snackbar
import android.support.v7.app.AppCompatActivity
import android.support.v7.widget.Toolbar
import android.view.View
import android.view.Menu
import android.view.MenuItem
import android.view.View.OnClickListener
import android.widget.Button
import android.widget.EditText
import android.widget.TextView
class MainActivity : Activity(), OnClickListener {
private var Scr: EditText? = null // textbox screen
private val debugScr: EditText? = null // debug screen
private var NumberBf: Float = 0.toFloat() //save screen before pressing button operation;
private var Operation = ""
private var LastOperation = ""
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
Scr = findViewById(R.id.editText) as EditText
println("OK Calculator") // set debug screen text
val idList = intArrayOf(R.id.button1, R.id.button2, R.id.button3, R.id.button4, R.id.button5, R.id.button6, R.id.button7, R.id.button8, R.id.button9, R.id.button0, R.id.buttonAdd, R.id.buttonSub, R.id.buttonMul, R.id.buttonDiv, R.id.buttonDot, R.id.buttonEq)
for (id in idList) {
val v = findViewById(id)
v.setOnClickListener(this)
println("It comes here " + (v as Button).text.toString())
}
}
// Have to implement with the OnClickListner
// onClick is called when a view has been clicked.
override fun onClick(v: View) { // Parameter v stands for the view that was clicked.
println("Pressed Button " + (v as Button).text.toString())
val eqButton = findViewById(R.id.buttonEq) as Button
eqButton.text = "="
when (v.id) {
R.id.buttonAdd -> {
sMath("+")
LastOperation = "+"
}
R.id.buttonSub -> {
sMath("-")
LastOperation = "-"
}
R.id.buttonMul -> {
sMath("*")
LastOperation = "*"
}
R.id.buttonDiv -> {
sMath("/")
LastOperation = "/"
}
R.id.buttonEq -> {
if (LastOperation == "=") {
Scr!!.setText("0")
NumberBf = 0f
Operation = ""
LastOperation = "="
//break
}
LastOperation = "="
eqButton.text = "C"
sResult()
}
else -> {
val numb = (v as Button).text.toString()
getKeyboard(numb)
}
}
}
fun sMath(str: String) {
NumberBf = java.lang.Float.parseFloat(Scr!!.text.toString()) // save the screen
Operation = str // save operation
Scr!!.setText("0") // clear screen
}
fun getKeyboard(str: String) {
var ScrCurrent = Scr!!.text.toString()
if (ScrCurrent == "0")
ScrCurrent = ""
if (ScrCurrent.contains(".") and (str == "."))
return
ScrCurrent += str
Scr!!.setText(ScrCurrent)
}
fun sResult() {
val NumberAf = java.lang.Float.parseFloat(Scr!!.text.toString())
var result = 0f
if (Operation == "+") {
result = NumberBf + NumberAf
}
if (Operation == "-") {
result = NumberBf - NumberAf
}
if (Operation == "*") {
result = NumberBf * NumberAf
}
if (Operation == "/") {
result = NumberBf / NumberAf
}
Scr!!.setText(result.toString())
}
override fun onCreateOptionsMenu(menu: Menu): Boolean {
// Inflate the menu; this adds items to the action bar if it is present.
menuInflater.inflate(R.menu.menu, menu)
return true
}
override fun onOptionsItemSelected(item: MenuItem): Boolean {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
val id = item.itemId
if (id == R.id.action_settings) {
println("Settings")
return true
}
return super.onOptionsItemSelected(item)
}
}
- app/src/main/res/layout/activity_main.xml Select all
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
tools:context="com.example.peamoncalculator.MainActivity" >
<EditText
android:text="0"
android:id="@+id/editText"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:maxLength="12"
android:textSize="50sp"
android:layout_weight="0.6"
android:gravity="right"
android:hint="0">
</EditText>
<TableLayout
android:id="@+id/tableLayout1"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:layout_weight="0.2">
<TableRow
android:id="@+id/tableRow1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25">
<Button
android:text="1"
android:id="@+id/button1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
<Button
android:text="2"
android:id="@+id/button2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
<Button
android:text="3"
android:id="@+id/button3"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
<Button
android:text="4"
android:id="@+id/button4"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
</TableRow>
<TableRow
android:id="@+id/tableRow2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25">
<Button
android:text="5"
android:id="@+id/button5"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
<Button
android:text="6"
android:id="@+id/button6"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
<Button
android:text="7"
android:id="@+id/button7"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
<Button
android:text="8"
android:id="@+id/button8"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
</TableRow>
<TableRow
android:id="@+id/tableRow3"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25">
<Button
android:text="9"
android:id="@+id/button9"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
<Button
android:text="0"
android:id="@+id/button0"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
<Button
android:text="."
android:id="@+id/buttonDot"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
<Button
android:text="="
android:id="@+id/buttonEq"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
</TableRow>
<TableRow
android:id="@+id/tableRow4"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25">
<Button
android:text="+"
android:background="#8FCC8F"
android:id="@+id/buttonAdd"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
<Button
android:text="-"
android:background="#8FBC8F"
android:id="@+id/buttonSub"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
<Button
android:text="*"
android:background="#8FCC8F"
android:id="@+id/buttonMul"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
<Button
android:text="/"
android:background="#8FBC8F"
android:id="@+id/buttonDiv"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.25"
android:textSize="30sp"></Button>
</TableRow>
</TableLayout>
</LinearLayout>
C++ Example
The original HelloDroid project file for Android 1.3 is from https://mega.nz/#!iwoHjDiC!dJ45TLYAmCoUYnSOE9H1faYYOSyt5FxfBnmlXeqIRgU
Modifications to the following files are needed for Android Studio 3.0 Canary 1
- app/build.gradle Select all
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion '25.0.2' // minimum 25.0.x for Android Studio 3.0 Canary 1
defaultConfig {
applicationId 'com.beginndkgamecode.hellodroid'
minSdkVersion 9
targetSdkVersion 23
versionCode 1
versionName "1.0"
archivesBaseName = 'HELLODRIOD_' + versionName
ndk {
abiFilters 'armeabi-v7a', 'x86', 'x86_64'
}
externalNativeBuild {
ndkBuild {
arguments "NDK_APPLICATION_MK=src/main/jni/Application.mk",
"-j6"
}
}
}
buildTypes {
debug {
minifyEnabled false
zipAlignEnabled true
debuggable true
useProguard false
}
release {
minifyEnabled false
zipAlignEnabled true
useProguard true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
externalNativeBuild {
ndkBuild {
path "src/main/jni/Android.mk"
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:23+'
compile 'com.android.support.constraint:constraint-layout:1.0.0+'
}
- app/src/main/jni/Application.mk Select all
APP_PLATFORM := android-9
APP_ABI := armeabi-v7a x86 x86_64
- Project:HelloDroid/build.gradle Select all
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
}
dependencies {
//classpath 'com.android.tools.build:gradle-experimental:0.7.0-beta1'
//classpath 'com.android.tools.build:gradle:2.2.0-alpha3'
//updated classpath for Android Studio 3.0
classpath 'com.android.tools.build:gradle:3.0.0-alpha1'
}
}
allprojects {
repositories {
jcenter()
}
}
- gradle-wrapper.properties Select all
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
#updated to gradle-4.0-milestone-1-all.zip for Android Studio 3.0
distributionUrl=https\://services.gradle.org/distributions/gradle-4.0-milestone-1-all.zip
- app/src/main/jni/Android.mk Select all
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := hellodroid
LOCAL_SRC_FILES := main.cpp
LOCAL_LDLIBS := -llog -landroid -lEGL -lGLESv2
LOCAL_STATIC_LIBRARIES := android_native_app_glue
include $(BUILD_SHARED_LIBRARY)
$(call import-module,android/native_app_glue)
ATTENTION: Quit Docker (if running) before launching Android Emulator in HAXM.
Install kotlin compiler in macOS
- shell script Select all
# install kotlin in macOS, also applicable to Ubuntu Linux
# for Ubuntu, sdk install java
curl -s https://get.sdkman.io | bash
# open another Terminal
sdk install kotlin
# create hello.kt
cat > hello.kt <<"EOF"
fun main(args: Array<String>) {
println("Hello, World!")
val list = listOf(1, 3, 5, 7)
for (k in list) {
println("k is $k")
}
list.forEach(fun(x) {
println("x is $x")
})
args.forEachIndexed(fun(x, y) {
println("arg[$x] is $y")
})
}
EOF
# compile and test hello.kt
kotlinc hello.kt -include-runtime -d hello.jar
java -jar hello.jar a b c d
