Added group chat tutorial for Android with subject change & participants update

This commit is contained in:
Sylvain Berfini 2021-09-13 13:51:25 +02:00
parent 3080de2b57
commit 50483699b5
43 changed files with 1305 additions and 2 deletions

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@ -34,6 +34,12 @@ job-android-advanced-chat:
- cd android/kotlin/6-AdvancedChat/
- ./gradlew assembleRelease
job-android-group-chat:
extends: .job-android
script:
- cd android/kotlin/7-GroupChat/
- ./gradlew assembleRelease
job-android-incoming-call:
extends: .job-android
script:

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@ -1,6 +1,6 @@
Advanced chat tutorial
====================
This tutorial will demonstrate how to leverage on our own SIP server named [Flexisip](https://gitlab.linphone.org/BC/public/flexisip) and it's conference server to create group chats, use end-to-end encryption and send ephemeral messages.
This tutorial will demonstrate how to leverage on our own SIP server named [Flexisip](https://gitlab.linphone.org/BC/public/flexisip) and it's conference server to create end-to-end encrypted chat rooms and send ephemeral messages.
If you don't have deployed a flexisip server yet, you can create & use a free SIP account using our [free SIP service](https://subscribe.linphone.org/).
If you don't have deployed a flexisip server yet, you can create & use a free SIP account using our [free SIP service](https://subscribe.linphone.org/).

15
android/kotlin/7-GroupChat/.gitignore vendored Normal file
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@ -0,0 +1,15 @@
*.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
.cxx
local.properties

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@ -0,0 +1,27 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectInspectionProfilesVisibleTreeState">
<entry key="Project Default">
<profile-state>
<expanded-state>
<State />
<State>
<id>Android</id>
</State>
<State>
<id>CorrectnessLintAndroid</id>
</State>
<State>
<id>Gradle</id>
</State>
<State>
<id>LintAndroid</id>
</State>
<State>
<id>Probable bugsGradle</id>
</State>
</expanded-state>
</profile-state>
</entry>
</component>
</project>

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@ -0,0 +1,3 @@
# Default ignored files
/shelf/
/workspace.xml

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@ -0,0 +1 @@
Advanced Chat

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@ -0,0 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="CompilerConfiguration">
<bytecodeTargetLevel target="11" />
</component>
</project>

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@ -0,0 +1,22 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="GradleMigrationSettings" migrationVersion="1" />
<component name="GradleSettings">
<option name="linkedExternalProjectsSettings">
<GradleProjectSettings>
<option name="testRunner" value="GRADLE" />
<option name="disableWrapperSourceDistributionNotification" value="true" />
<option name="distributionType" value="DEFAULT_WRAPPED" />
<option name="externalProjectPath" value="$PROJECT_DIR$" />
<option name="gradleJvm" value="JDK" />
<option name="modules">
<set>
<option value="$PROJECT_DIR$" />
<option value="$PROJECT_DIR$/app" />
</set>
</option>
<option name="resolveModulePerSourceSet" value="false" />
</GradleProjectSettings>
</option>
</component>
</project>

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@ -0,0 +1,30 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="RemoteRepositoriesConfiguration">
<remote-repository>
<option name="id" value="central" />
<option name="name" value="Maven Central repository" />
<option name="url" value="https://repo1.maven.org/maven2" />
</remote-repository>
<remote-repository>
<option name="id" value="jboss.community" />
<option name="name" value="JBoss Community repository" />
<option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
</remote-repository>
<remote-repository>
<option name="id" value="BintrayJCenter" />
<option name="name" value="BintrayJCenter" />
<option name="url" value="https://jcenter.bintray.com/" />
</remote-repository>
<remote-repository>
<option name="id" value="Google" />
<option name="name" value="Google" />
<option name="url" value="https://dl.google.com/dl/android/maven2/" />
</remote-repository>
<remote-repository>
<option name="id" value="maven" />
<option name="name" value="maven" />
<option name="url" value="https://linphone.org/maven_repository" />
</remote-repository>
</component>
</project>

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@ -0,0 +1,18 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="DesignSurface">
<option name="filePathToZoomLevelMap">
<map>
<entry key="app/src/main/res/drawable-v24/ic_launcher_foreground.xml" value="0.4276923076923077" />
<entry key="app/src/main/res/drawable/ic_launcher_background.xml" value="0.4276923076923077" />
<entry key="app/src/main/res/layout/group_chat_activity.xml" value="0.3990036231884058" />
</map>
</option>
</component>
<component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="JDK" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/build/classes" />
</component>
<component name="ProjectType">
<option name="id" value="Android" />
</component>
</project>

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@ -0,0 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$/../../.." vcs="Git" />
</component>
</project>

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@ -0,0 +1,6 @@
Group chat tutorial
====================
This tutorial will demonstrate how to leverage on our own SIP server named [Flexisip](https://gitlab.linphone.org/BC/public/flexisip) and it's conference server to create group chats.
If you don't have deployed a flexisip server yet, you can create & use a free SIP account using our [free SIP service](https://subscribe.linphone.org/).

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@ -0,0 +1 @@
/build

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@ -0,0 +1,50 @@
plugins {
id 'com.android.application'
id 'kotlin-android'
}
android {
compileSdkVersion 30
buildToolsVersion "30.0.3"
defaultConfig {
applicationId "org.linphone.groupchat"
minSdkVersion 23
targetSdkVersion 30
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
}
}
// We need to declare this repository to be able to use Liblinphone SDK
repositories {
maven {
url "https://linphone.org/maven_repository"
}
}
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
implementation 'androidx.core:core-ktx:1.3.2'
implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'com.google.android.material:material:1.2.1'
// Latest version is 5.0.x, using + to get the latest available
implementation 'org.linphone:linphone-sdk-android:5.0+'
}

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@ -0,0 +1,21 @@
# 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

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@ -0,0 +1,24 @@
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="org.linphone.groupchat">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/Theme.GroupChat" >
<activity
android:name=".GroupChatActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

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@ -0,0 +1,321 @@
/*
* Copyright (c) 2010-2020 Belledonne Communications SARL.
*
* This file is part of linphone-android
* (see https://www.linphone.org).
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.linphone.groupchat
import android.os.Bundle
import android.view.Gravity
import android.view.View
import android.widget.*
import androidx.appcompat.app.AppCompatActivity
import org.linphone.core.*
import java.io.File
class GroupChatActivity: AppCompatActivity() {
private lateinit var core: Core
private var chatRoom: ChatRoom? = null
private var remoteAddresses = arrayListOf<Address>()
private val coreListener = object: CoreListenerStub() {
override fun onAccountRegistrationStateChanged(core: Core, account: Account, state: RegistrationState?, message: String) {
findViewById<TextView>(R.id.registration_status).text = message
if (state == RegistrationState.Failed) {
core.clearAllAuthInfo()
core.clearAccounts()
findViewById<Button>(R.id.connect).isEnabled = true
} else if (state == RegistrationState.Ok) {
findViewById<LinearLayout>(R.id.register_layout).visibility = View.GONE
findViewById<RelativeLayout>(R.id.chat_layout).visibility = View.VISIBLE
}
}
override fun onMessageReceived(core: Core, room: ChatRoom, message: ChatMessage) {
if (room == chatRoom) {
// We will notify the sender the message has been read by us
room.markAsRead()
}
}
}
private val chatRoomListener = object: ChatRoomListenerStub() {
override fun onStateChanged(chatRoom: ChatRoom, newState: ChatRoom.State?) {
if (newState == ChatRoom.State.Created) {
findViewById<Button>(R.id.send_message).isEnabled = true
findViewById<Button>(R.id.change_subject).isEnabled = true
findViewById<EditText>(R.id.subject).isEnabled = true
}
}
// This callback will be dispatched when a new Event is generated
// For example the subject is changed, participants were added and/or removed,
// admin status of a participant changed, etc...
// It will also be called for messages!
override fun onNewEvent(chatRoom: ChatRoom, eventLog: EventLog) {
addEventToHistory(eventLog)
}
}
private val chatMessageListener = object: ChatMessageListenerStub() {
override fun onMsgStateChanged(message: ChatMessage, state: ChatMessage.State?) {
val messageView = message.userData as? View
when (state) {
ChatMessage.State.InProgress -> {
messageView?.setBackgroundColor(getColor(R.color.yellow))
}
ChatMessage.State.Delivered -> {
// The proxy server has acknowledged the message with a 200 OK
messageView?.setBackgroundColor(getColor(R.color.orange))
}
ChatMessage.State.DeliveredToUser -> {
// User as received it
messageView?.setBackgroundColor(getColor(R.color.blue))
}
ChatMessage.State.Displayed -> {
// User as read it (client called chatRoom.markAsRead()
messageView?.setBackgroundColor(getColor(R.color.green))
}
ChatMessage.State.NotDelivered -> {
// User might be invalid or not registered
messageView?.setBackgroundColor(getColor(R.color.red))
}
}
}
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.group_chat_activity)
val factory = Factory.instance()
factory.setDebugMode(true, "Hello Linphone")
Factory.instance().setLogCollectionPath(filesDir.absolutePath)
factory.enableLogCollection(LogCollectionState.Enabled)
// Delete previous databases if any
// If not done, will mess when connecting with the same account as before
File("${filesDir.absoluteFile}/linphone.db").delete()
File("${filesDir.absoluteFile}/x3dh.c25519.sqlite3").delete()
File("${filesDir.absoluteFile}/zrtp-secrets.db").delete()
core = factory.createCore(null, null, this)
findViewById<Button>(R.id.connect).setOnClickListener {
login()
it.isEnabled = false
}
findViewById<Button>(R.id.add_participant).setOnClickListener {
val address = findViewById<EditText>(R.id.participant_address).text.toString()
val parsedAddress = core.interpretUrl(address)
if (parsedAddress != null) {
remoteAddresses.add(parsedAddress)
findViewById<EditText>(R.id.participant_address).text.clear()
findViewById<TextView>(R.id.participants).text =
findViewById<TextView>(R.id.participants).text.toString() + parsedAddress.asStringUriOnly() + "\n"
findViewById<Button>(R.id.create_chat_room).isEnabled = true
if (chatRoom != null) {
findViewById<Button>(R.id.create_chat_room).text = "Update"
}
}
}
findViewById<Button>(R.id.create_chat_room).setOnClickListener {
if (chatRoom == null) {
createFlexisipChatRoom()
} else {
updateParticipantsList()
}
}
findViewById<Button>(R.id.change_subject).setOnClickListener {
// This will update the subject for all participants in the chat room
chatRoom?.subject = findViewById<EditText>(R.id.subject).text.toString()
}
findViewById<Button>(R.id.send_message).setOnClickListener {
sendMessage()
}
findViewById<Button>(R.id.send_message).isEnabled = false
}
private fun login() {
val username = findViewById<EditText>(R.id.username).text.toString()
val password = findViewById<EditText>(R.id.password).text.toString()
val domain = findViewById<EditText>(R.id.domain).text.toString()
val transportType = when (findViewById<RadioGroup>(R.id.transport).checkedRadioButtonId) {
R.id.udp -> TransportType.Udp
R.id.tcp -> TransportType.Tcp
else -> TransportType.Tls
}
val authInfo = Factory.instance().createAuthInfo(username, null, password, null, null, domain, null)
val params = core.createAccountParams()
val identity = Factory.instance().createAddress("sip:$username@$domain")
params.identityAddress = identity
val address = Factory.instance().createAddress("sip:$domain")
address?.transport = transportType
params.serverAddress = address
params.registerEnabled = true
// We need a conference factory URI set on the Account to be able to create chat rooms with flexisip backend
params.conferenceFactoryUri = "sip:conference-factory@sip.linphone.org"
core.addAuthInfo(authInfo)
val account = core.createAccount(params)
core.addAccount(account)
// We also need a LIME X3DH server URL configured for end to end encryption
core.limeX3DhServerUrl = "https://lime.linphone.org/lime-server/lime-server.php"
core.defaultAccount = account
core.addListener(coreListener)
core.start()
}
private fun createFlexisipChatRoom() {
// In this tutorial we will create a Flexisip group chat room,
// and we won't enable end-to-end encryption like in previous tutorial to keep it focused.
// For it to work, the proxy server we connect to must be an instance of Flexisip
// And we must have configured on the Account a conference-factory URI
val params = core.createDefaultChatRoomParams()
// We will create a group chat room without end-to-end encryption
params.backend = ChatRoomBackend.FlexisipChat
params.enableGroup(true)
params.enableEncryption(false)
// A flexisip chat room must have a subject
params.subject = findViewById<EditText>(R.id.subject).text.toString()
if (params.isValid) {
// We also need the SIP addresses of the persons we will chat with (at least one)
if (remoteAddresses.size > 0) {
val addresses = arrayOfNulls<Address>(remoteAddresses.size)
remoteAddresses.toArray(addresses)
remoteAddresses.clear()
// And finally we will need our local SIP address
val localAddress = core.defaultAccount?.params?.identityAddress
val room = core.createChatRoom(params, localAddress, addresses)
if (room != null) {
// If chat room isn't created yet, wait for it to go in state Created
// as Flexisip chat room creation process is asynchronous
room.addListener(chatRoomListener)
chatRoom = room
findViewById<Button>(R.id.create_chat_room).isEnabled = false
// Chat room may already be created (for example if you logged in with an account for which the chat room already exists)
if (room.state == ChatRoom.State.Created) {
findViewById<Button>(R.id.send_message).isEnabled = true
findViewById<Button>(R.id.change_subject).isEnabled = true
findViewById<EditText>(R.id.subject).isEnabled = true
}
}
}
}
}
private fun updateParticipantsList() {
// Here we will add new participants to our existing chat room, like we do in the creation step
if (remoteAddresses.size > 0) {
val addresses = arrayOfNulls<Address>(remoteAddresses.size)
remoteAddresses.toArray(addresses)
remoteAddresses.clear()
chatRoom?.addParticipants(addresses)
}
// To remove participants, compute an array of Addresses to remove and call chatRoom?.removeParticipants()
}
private fun sendMessage() {
val message = findViewById<EditText>(R.id.message).text.toString()
// We need to create a ChatMessage object using the ChatRoom
val chatMessage = chatRoom!!.createMessageFromUtf8(message)
// Then we can send it, progress will be notified using the onMsgStateChanged callback
chatMessage.addListener(chatMessageListener)
// Send the message
chatMessage.send()
// Clear the message input field
findViewById<EditText>(R.id.message).text.clear()
}
private fun addMessageToHistory(chatMessage: ChatMessage) {
// To display a chat message, iterate over it's contents list
for (content in chatMessage.contents) {
when {
content.isText -> {
// Content is of type plain/text
addTextMessageToHistory(chatMessage, content)
}
}
}
}
private fun addTextMessageToHistory(chatMessage: ChatMessage, content: Content) {
val messageView = TextView(this)
val layoutParams = LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)
layoutParams.gravity = if (chatMessage.isOutgoing) Gravity.RIGHT else Gravity.LEFT
messageView.layoutParams = layoutParams
// Content is of type plain/text, we can get the text in the content
messageView.text = content.utf8Text
if (chatMessage.isOutgoing) {
messageView.setBackgroundColor(getColor(R.color.white))
} else {
messageView.setBackgroundColor(getColor(R.color.purple_200))
}
chatMessage.userData = messageView
findViewById<LinearLayout>(R.id.messages).addView(messageView)
findViewById<ScrollView>(R.id.scroll).fullScroll(ScrollView.FOCUS_DOWN)
}
private fun addEventToHistory(eventLog: EventLog) {
// Each chat message is also an event
if (eventLog.type == EventLog.Type.ConferenceChatMessage) {
val chatMessage = eventLog.chatMessage
if (chatMessage != null) addMessageToHistory(chatMessage)
return
}
val messageView = TextView(this)
val layoutParams = LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT)
layoutParams.gravity = Gravity.CENTER
// A group chat room event can have many types, check the enum for all possible values
// Here we will focus on subject change & participant manipulation
messageView.text = when (eventLog.type) {
EventLog.Type.ConferenceSubjectChanged -> "Subject changed: ${eventLog.subject}"
EventLog.Type.ConferenceParticipantAdded -> "Participant added: ${eventLog.participantAddress?.asStringUriOnly()}"
EventLog.Type.ConferenceParticipantRemoved -> "Participant removed: ${eventLog.participantAddress?.asStringUriOnly()}"
else -> "Event of type: ${eventLog.type}"
}
findViewById<LinearLayout>(R.id.messages).addView(messageView)
findViewById<ScrollView>(R.id.scroll).fullScroll(ScrollView.FOCUS_DOWN)
}
}

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android:strokeColor="#33FFFFFF" />
</vector>

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<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
xmlns:app="http://schemas.android.com/apk/res-auto">
<TextView
android:id="@+id/registration_status"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<LinearLayout
android:id="@+id/register_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/registration_status"
android:gravity="center"
android:visibility="visible"
android:orientation="vertical">
<EditText
android:id="@+id/username"
android:hint="Username"
android:text="viish"
android:inputType="textEmailAddress"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<EditText
android:id="@+id/password"
android:hint="Password"
android:text="lucifer"
android:inputType="textPassword"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<EditText
android:id="@+id/domain"
android:hint="Domain"
android:text="sip.linphone.org"
android:inputType="textUri"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<RadioGroup
android:id="@+id/transport"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<RadioButton
android:id="@+id/udp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="UDP" />
<RadioButton
android:id="@+id/tcp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TCP" />
<RadioButton
android:id="@+id/tls"
android:checked="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TLS" />
</RadioGroup>
<Button
android:id="@+id/connect"
android:text="Connect"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
<RelativeLayout
android:id="@+id/chat_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@id/registration_status"
android:visibility="gone">
<EditText
android:id="@+id/subject"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toLeftOf="@id/change_subject"
android:hint="Title"/>
<Button
android:id="@+id/change_subject"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:enabled="false"
android:text="Change subject" />
<EditText
android:id="@+id/participant_address"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/subject"
android:layout_toLeftOf="@id/add_participant"
android:text="thorin.oakenshield"
android:hint="Participant SIP address"/>
<Button
android:id="@+id/add_participant"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/subject"
android:layout_alignParentRight="true"
android:text="Add participant" />
<TextView
android:id="@+id/participants"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/add_participant"/>
<Button
android:id="@+id/create_chat_room"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/participants"
android:layout_alignParentRight="true"
android:enabled="false"
android:text="Create" />
<Button
android:id="@+id/send_message"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Send"
android:layout_alignParentRight="true"
android:layout_alignParentBottom="true"/>
<EditText
android:id="@+id/message"
android:text="Test"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toLeftOf="@id/send_message"
android:layout_alignParentBottom="true"
android:hint="Message to send"/>
<ScrollView
android:id="@+id/scroll"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#A1A1A1"
android:fillViewport="true"
android:layout_above="@id/message"
android:layout_below="@id/create_chat_room">
<LinearLayout
android:id="@+id/messages"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"/>
</ScrollView>
</RelativeLayout>
</RelativeLayout>

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@ -0,0 +1,5 @@
<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@drawable/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>

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<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@drawable/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>

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<resources xmlns:tools="http://schemas.android.com/tools">
<!-- Base application theme. -->
<style name="Theme.GroupChat" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
<!-- Primary brand color. -->
<item name="colorPrimary">@color/purple_200</item>
<item name="colorPrimaryVariant">@color/purple_700</item>
<item name="colorOnPrimary">@color/black</item>
<!-- Secondary brand color. -->
<item name="colorSecondary">@color/teal_200</item>
<item name="colorSecondaryVariant">@color/teal_200</item>
<item name="colorOnSecondary">@color/black</item>
<!-- Status bar color. -->
<item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
<!-- Customize your theme here. -->
</style>
</resources>

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@ -0,0 +1,15 @@
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="purple_200">#FFBB86FC</color>
<color name="purple_500">#FF6200EE</color>
<color name="purple_700">#FF3700B3</color>
<color name="teal_200">#FF03DAC5</color>
<color name="teal_700">#FF018786</color>
<color name="black">#FF000000</color>
<color name="white">#FFFFFFFF</color>
<color name="yellow">#FFFFFF00</color>
<color name="orange">#FFFFA500</color>
<color name="red">#FFFF0000</color>
<color name="green">#FF00FF00</color>
<color name="blue">#FF0000FF</color>
</resources>

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@ -0,0 +1,3 @@
<resources>
<string name="app_name">Group Chat</string>
</resources>

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@ -0,0 +1,16 @@
<resources xmlns:tools="http://schemas.android.com/tools">
<!-- Base application theme. -->
<style name="Theme.GroupChat" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
<!-- Primary brand color. -->
<item name="colorPrimary">@color/purple_500</item>
<item name="colorPrimaryVariant">@color/purple_700</item>
<item name="colorOnPrimary">@color/white</item>
<!-- Secondary brand color. -->
<item name="colorSecondary">@color/teal_200</item>
<item name="colorSecondaryVariant">@color/teal_700</item>
<item name="colorOnSecondary">@color/black</item>
<!-- Status bar color. -->
<item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
<!-- Customize your theme here. -->
</style>
</resources>

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@ -0,0 +1,26 @@
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext.kotlin_version = "1.4.21"
repositories {
google()
jcenter()
}
dependencies {
classpath "com.android.tools.build:gradle:4.1.1"
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 {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

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@ -0,0 +1,21 @@
# Project-wide Gradle settings.
# IDE (e.g. Android Studio) users:
# Gradle settings configured through the IDE *will override*
# any settings specified in this file.
# For more details on how to configure your build environment visit
# http://www.gradle.org/docs/current/userguide/build_environment.html
# Specifies the JVM arguments used for the daemon process.
# The setting is particularly useful for tweaking memory settings.
org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
# When configured, Gradle will run in incubating parallel mode.
# This option should only be used with decoupled projects. More details, visit
# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
# org.gradle.parallel=true
# AndroidX package structure to make it clearer which packages are bundled with the
# Android operating system, and which are packaged with your app"s APK
# https://developer.android.com/topic/libraries/support-library/androidx-rn
android.useAndroidX=true
# Automatically convert third-party libraries to use AndroidX
android.enableJetifier=true
# Kotlin code style for this project: "official" or "obsolete":
kotlin.code.style=official

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#Mon Jan 18 15:05:55 CET 2021
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip

172
android/kotlin/7-GroupChat/gradlew vendored Executable file
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@ -0,0 +1,172 @@
#!/usr/bin/env sh
##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
PRG="$0"
# Need this for relative symlinks.
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG=`dirname "$PRG"`"/$link"
fi
done
SAVED="`pwd`"
cd "`dirname \"$PRG\"`/" >/dev/null
APP_HOME="`pwd -P`"
cd "$SAVED" >/dev/null
APP_NAME="Gradle"
APP_BASE_NAME=`basename "$0"`
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS=""
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"
warn () {
echo "$*"
}
die () {
echo
echo "$*"
echo
exit 1
}
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "`uname`" in
CYGWIN* )
cygwin=true
;;
Darwin* )
darwin=true
;;
MINGW* )
msys=true
;;
NONSTOP* )
nonstop=true
;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
MAX_FD_LIMIT=`ulimit -H -n`
if [ $? -eq 0 ] ; then
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
MAX_FD="$MAX_FD_LIMIT"
fi
ulimit -n $MAX_FD
if [ $? -ne 0 ] ; then
warn "Could not set maximum file descriptor limit: $MAX_FD"
fi
else
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
fi
fi
# For Darwin, add options to specify how the application appears in the dock
if $darwin; then
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
fi
# For Cygwin, switch paths to Windows format before running java
if $cygwin ; then
APP_HOME=`cygpath --path --mixed "$APP_HOME"`
CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
JAVACMD=`cygpath --unix "$JAVACMD"`
# We build the pattern for arguments to be converted via cygpath
ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
SEP=""
for dir in $ROOTDIRSRAW ; do
ROOTDIRS="$ROOTDIRS$SEP$dir"
SEP="|"
done
OURCYGPATTERN="(^($ROOTDIRS))"
# Add a user-defined pattern to the cygpath arguments
if [ "$GRADLE_CYGPATTERN" != "" ] ; then
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
fi
# Now convert the arguments - kludge to limit ourselves to /bin/sh
i=0
for arg in "$@" ; do
CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
else
eval `echo args$i`="\"$arg\""
fi
i=$((i+1))
done
case $i in
(0) set -- ;;
(1) set -- "$args0" ;;
(2) set -- "$args0" "$args1" ;;
(3) set -- "$args0" "$args1" "$args2" ;;
(4) set -- "$args0" "$args1" "$args2" "$args3" ;;
(5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
(6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
(7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
(8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
(9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
esac
fi
# Escape application args
save () {
for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
echo " "
}
APP_ARGS=$(save "$@")
# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
cd "$(dirname "$0")"
fi
exec "$JAVACMD" "$@"

84
android/kotlin/7-GroupChat/gradlew.bat vendored Normal file
View File

@ -0,0 +1,84 @@
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS=
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto init
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto init
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:init
@rem Get command-line arguments, handling Windows variants
if not "%OS%" == "Windows_NT" goto win9xME_args
:win9xME_args
@rem Slurp the command line arguments.
set CMD_LINE_ARGS=
set _SKIP=2
:win9xME_args_slurp
if "x%~1" == "x" goto execute
set CMD_LINE_ARGS=%*
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

View File

@ -0,0 +1,2 @@
include ':app'
rootProject.name = "Group Chat"