Commit e57daef8 authored by Mark Murphy's avatar Mark Murphy

new tutorials

parent 33f42964
*.iml
.gradle
/local.properties
/.idea/caches
/.idea/libraries
/.idea/modules.xml
/.idea/workspace.xml
/.idea/navEditor.xml
/.idea/assetWizardSettings.xml
.DS_Store
/build
/captures
.externalNativeBuild
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.commonsware.todo"
minSdkVersion 21
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
androidExtensions {
experimental = true
}
dataBinding {
enabled = true
}
}
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'androidx.appcompat:appcompat:1.0.2'
implementation 'androidx.core:core-ktx:1.0.1'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'androidx.recyclerview:recyclerview:1.0.0'
implementation 'androidx.fragment:fragment-ktx:1.0.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
}
# Add project specific ProGuard rules here.
# You can control the set of applied configuration files using the
# proguardFiles setting in build.gradle.
#
# For more details, see
# http://developer.android.com/guide/developing/tools/proguard.html
# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
# public *;
#}
# Uncomment this to preserve the line number information for
# debugging stack traces.
#-keepattributes SourceFile,LineNumberTable
# If you keep the line number information, uncomment this to
# hide the original source file name.
#-renamesourcefileattribute SourceFile
package com.commonsware.todo
import androidx.test.InstrumentationRegistry
import androidx.test.runner.AndroidJUnit4
import org.junit.Test
import org.junit.runner.RunWith
import org.junit.Assert.*
/**
* Instrumented test, which will execute on an Android device.
*
* See [testing documentation](http://d.android.com/tools/testing).
*/
@RunWith(AndroidJUnit4::class)
class ExampleInstrumentedTest {
@Test
fun useAppContext() {
// Context of the app under test.
val appContext = InstrumentationRegistry.getTargetContext()
assertEquals("com.commonsware.todo", appContext.packageName)
}
}
<?xml version="1.0" encoding="utf-8"?>
<manifest package="com.commonsware.todo"
xmlns:android="http://schemas.android.com/apk/res/android">
<supports-screens
android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:xlargeScreens="true" />
<application
android:allowBackup="false"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".AboutActivity"></activity>
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
\ No newline at end of file
<h1>About This App</h1>
<p>This app is cool!</p>
<p>No, really &mdash; this app is awesome!</p>
<div>
.
<br/>
.
<br/>
.
<br/>
.
</div>
<p>OK, this app isn't all that much. But, hey, it's mine!</p>
\ No newline at end of file
package com.commonsware.todo
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import kotlinx.android.synthetic.main.activity_about.*
class AboutActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_about)
toolbar.title = getString(R.string.app_name)
about.loadUrl("file:///android_asset/about.html")
}
}
package com.commonsware.todo
import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import androidx.fragment.app.transaction
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
if (supportFragmentManager.findFragmentById(android.R.id.content) == null) {
supportFragmentManager.transaction {
add(android.R.id.content, RosterListFragment())
}
}
}
}
package com.commonsware.todo
import android.view.LayoutInflater
import android.view.ViewGroup
import androidx.recyclerview.widget.DiffUtil
import androidx.recyclerview.widget.ListAdapter
import com.commonsware.todo.databinding.TodoRowBinding
class RosterAdapter(private val inflater: LayoutInflater) : ListAdapter<ToDoModel, RosterRowHolder>(DiffCallback) {
override fun onCreateViewHolder(
parent: ViewGroup,
viewType: Int
) = RosterRowHolder(TodoRowBinding.inflate(inflater, parent, false))
override fun onBindViewHolder(holder: RosterRowHolder, position: Int) {
holder.bind(getItem(position))
}
}
private object DiffCallback : DiffUtil.ItemCallback<ToDoModel>() {
override fun areItemsTheSame(oldItem: ToDoModel, newItem: ToDoModel) =
oldItem.id == newItem.id
override fun areContentsTheSame(oldItem: ToDoModel, newItem: ToDoModel) =
oldItem.isCompleted == newItem.isCompleted &&
oldItem.description == newItem.description
}
\ No newline at end of file
package com.commonsware.todo
import android.content.Intent
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import androidx.recyclerview.widget.DividerItemDecoration
import androidx.recyclerview.widget.LinearLayoutManager
import kotlinx.android.synthetic.main.todo_roster.*
import kotlinx.android.synthetic.main.todo_roster.view.*
class RosterListFragment : Fragment() {
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? = inflater.inflate(R.layout.todo_roster, container, false)
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
toolbar.title = getString(R.string.app_name)
toolbar.inflateMenu(R.menu.actions)
toolbar.setOnMenuItemClickListener { item ->
when (item.itemId) {
R.id.about -> startActivity(Intent(activity, AboutActivity::class.java))
else -> return@setOnMenuItemClickListener false
}
true
}
val adapter = RosterAdapter(layoutInflater)
view.items.apply {
setAdapter(adapter)
layoutManager = LinearLayoutManager(context)
addItemDecoration(
DividerItemDecoration(
activity,
DividerItemDecoration.VERTICAL
)
)
}
adapter.submitList(ToDoRepository.items)
empty.visibility = View.GONE
}
}
\ No newline at end of file
package com.commonsware.todo
import androidx.recyclerview.widget.RecyclerView
import com.commonsware.todo.databinding.TodoRowBinding
class RosterRowHolder(private val binding: TodoRowBinding) :
RecyclerView.ViewHolder(binding.root) {
fun bind(model: ToDoModel) {
binding.model = model
binding.executePendingBindings()
}
}
\ No newline at end of file
package com.commonsware.todo
import java.util.*
data class ToDoModel(
val description: String,
val id: String = UUID.randomUUID().toString(),
val isCompleted: Boolean = false,
val notes: String = "",
val createdOn: Calendar = Calendar.getInstance()
) {
}
\ No newline at end of file
package com.commonsware.todo
object ToDoRepository {
val items = listOf(
ToDoModel(
description = "Buy a copy of _Exploring Android_",
isCompleted = true,
notes = "See https://wares.commonsware.com"
),
ToDoModel(
description = "Complete all of the tutorials"
),
ToDoModel(
description = "Write an app for somebody in my community",
notes = "Talk to some people at non-profit organizations to see what they need!"
)
)
}
\ No newline at end of file
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android:height="108dp"
android:viewportHeight="108"
android:viewportWidth="108">
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android:fillType="evenOdd"
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android:strokeColor="#00000000"
android:strokeWidth="1">
<aapt:attr name="android:fillColor">
<gradient
android:endX="78.5885"
android:endY="90.9159"
android:startX="48.7653"
android:startY="61.0927"
android:type="linear">
<item
android:color="#44000000"
android:offset="0.0" />
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