srctree

package ltd.evilcorp.atox

 

import android.support.v7.app.AppCompatActivity

import android.os.Bundle

import android.util.Log

import android.widget.ListView

 

class ChatActivity : AppCompatActivity() {

override fun onCreate(savedInstanceState: Bundle?) {

super.onCreate(savedInstanceState)

setContentView(R.layout.activity_chat)

 

val username = intent.getStringExtra("username")

Log.e("ChatActivity", username)

 

val listView = findViewById<ListView>(R.id.messages)

val messages = ArrayList<MessageModel>()

messages.add(MessageModel("hello", Sender.Received))

messages.add(MessageModel("how are you", Sender.Received))

messages.add(MessageModel("I'm good, thanks.", Sender.Sent))

listView.adapter = MessagesAdapter(this, messages)

}

}

import android.content.Intent

import android.view.View

import kotlinx.android.synthetic.main.contact_list_view_item.view.*

 

fun openChat(view: View) {

val intent = Intent(this, ChatActivity::class.java)

intent.putExtra("username", view.name.text)

startActivity(intent)

}

package ltd.evilcorp.atox

 

import android.content.Context

import android.view.LayoutInflater

import android.view.View

import android.view.ViewGroup

import android.widget.BaseAdapter

import android.widget.TextView

 

class MessagesAdapter(private val context: Context, private val messages: MutableList<MessageModel>) : BaseAdapter() {

override fun getCount(): Int = messages.size

override fun getItem(position: Int): Any = messages[position]

override fun getItemId(position: Int): Long = position.toLong()

 

override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {

val view: View?

val vh: ViewHolder

 

if (convertView == null) {

val inflater = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater

view = inflater.inflate(

if (messages[position].sender == Sender.Sent) R.layout.message_sent else R.layout.message_received,

null,

true

)

vh = ViewHolder(view)

view.tag = vh

} else {

view = convertView

vh = view.tag as ViewHolder

}

 

vh.message.text = messages[position].message

 

return view!!

}

 

private class ViewHolder(row: View) {

val message: TextView = row.findViewById(R.id.message) as TextView

}

}

package ltd.evilcorp.atox

 

enum class Sender {

Sent,

Received,

}

 

class MessageModel(val message: String, val sender: Sender)

<?xml version="1.0" encoding="utf-8"?>

<inset xmlns:android="http://schemas.android.com/apk/res/android">

<shape/>

</inset>

<?xml version="1.0" encoding="utf-8"?>

<shape xmlns:android="http://schemas.android.com/apk/res/android"

android:shape="rectangle">

<solid android:color="@color/colorGray"/>

<corners android:topLeftRadius="5dp" android:radius="30dp"/>

</shape>

<?xml version="1.0" encoding="utf-8"?>

<shape xmlns:android="http://schemas.android.com/apk/res/android"

android:shape="rectangle">

<solid android:color="@color/colorPrimary"/>

<corners android:topRightRadius="5dp" android:radius="30dp"/>

</shape>

<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout

xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

xmlns:app="http://schemas.android.com/apk/res-auto"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context=".ChatActivity">

<ListView

android:id="@+id/messages"

android:layout_width="0dp"

android:layout_height="0dp"

android:layout_marginStart="8dp"

android:layout_marginTop="8dp"

android:layout_marginEnd="8dp"

android:layout_marginBottom="8dp"

android:divider="@drawable/message_divider"

android:dividerHeight="2dp"

app:layout_constraintBottom_toTopOf="@+id/message"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintStart_toStartOf="parent"

app:layout_constraintTop_toTopOf="parent"/>

<EditText

android:id="@+id/message"

android:layout_width="0dp"

android:layout_height="wrap_content"

android:layout_marginStart="8dp"

android:layout_marginEnd="8dp"

android:layout_marginBottom="8dp"

android:hint="Message, obviously"

app:layout_constraintBottom_toBottomOf="parent"

app:layout_constraintEnd_toStartOf="@+id/send"

app:layout_constraintHorizontal_bias="0.5"

app:layout_constraintStart_toStartOf="parent"/>

<Button

android:id="@+id/send"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginEnd="8dp"

android:text="Send"

android:onClick="sendMessage"

app:layout_constraintBottom_toBottomOf="@+id/message"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintHorizontal_bias="0.5"

app:layout_constraintStart_toEndOf="@+id/message"

app:layout_constraintTop_toTopOf="@+id/message"/>

</android.support.constraint.ConstraintLayout>

android:layout_marginStart="10dp"

android:onClick="openChat">

<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="vertical"

android:layout_margin="8dp">

<TextView

android:id="@+id/message"

android:background="@drawable/received_message_bubble"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_margin="8dp"

android:gravity="center"

android:padding="8dp"

android:textColor="@android:color/white"/>

</android.support.constraint.ConstraintLayout>

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="vertical">

<TextView

android:id="@+id/message"

android:background="@drawable/sent_message_bubble"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="end"

android:layout_margin="8dp"

android:gravity="center"

android:padding="8dp"

android:textColor="@android:color/white"/>

</LinearLayout>

<color name="colorGray">#555</color>