feat(Friends): Display contacts

app/src/main/java/fr/plnech/dunbar/Friend.kt

+package fr.plnech.dunbar
+
+import android.graphics.Bitmap
+import android.provider.ContactsContract
+
+data class Friend(val map: MutableMap<String, String?>, val photo: Bitmap?) {
+    override fun toString(): String = "$id: $name ($timesContacted times, last $lastTime)"
+
+    val name: String?
+        get() = map[ContactsContract.Contacts.DISPLAY_NAME]
+
+    val id: String
+        get() = map[ContactsContract.Contacts._ID]!!
+
+    val lastTime: String?
+        get() = map[ContactsContract.Contacts.LAST_TIME_CONTACTED]
+
+    val timesContacted: String?
+        get() = map[ContactsContract.Contacts.TIMES_CONTACTED]
+
+    val isYou: String?
+        get() = map[ContactsContract.Contacts.IS_USER_PROFILE]
+
+    val visibleOutsideSearch: String?
+        get() = map[ContactsContract.Contacts.IN_DEFAULT_DIRECTORY]
+}
\ No newline at end of file

app/src/main/java/fr/plnech/dunbar/Friends.kt

-package fr.plnech.dunbar
-
-// * @see [contacts doc](https://developer.android.com/training/contacts-provider/retrieve-names)
-class Friends {
-}
\ No newline at end of file

app/src/main/java/fr/plnech/dunbar/MainActivity.kt

 package fr.plnech.dunbar
 
+import android.content.ContentUris
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
 import android.os.Bundle
 import android.provider.ContactsContract
+import android.util.Log
 import android.view.Menu
 import android.view.MenuItem
 import android.widget.ArrayAdapter
@@ -10,20 +14,18 @@ import androidx.appcompat.app.AppCompatActivity
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.android.synthetic.main.activity_main.*
 import kotlinx.android.synthetic.main.content_main.*
+import java.io.IOException
 
 
 class MainActivity : AppCompatActivity() {
 
-    private val CONTENT_VIEW_ID = 10101010
+    private val friends = mutableListOf<Friend>()
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
         setSupportActionBar(toolbar)
 
-
-
-
         fab.setOnClickListener { view ->
             Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                 .setAction("Action", null).show()
@@ -49,6 +51,8 @@ class MainActivity : AppCompatActivity() {
     }
 
     fun fetchFriends() {
+        Toast.makeText(this@MainActivity, "Fetching friends...", Toast.LENGTH_SHORT).show()
+
         contentResolver.query(
             ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
             null,
@@ -56,31 +60,65 @@ class MainActivity : AppCompatActivity() {
             null,
             null
         )?.let {
-
-            val contacts = mutableListOf<List<Pair<String, String>>>()
             while (it.moveToNext()) {
-                contacts.add(mutableListOf<Pair<String, String>>().also { contact ->
+                mutableMapOf<String, String?>().also { map ->
+
+                    val indexID = it.getColumnIndex(ContactsContract.Contacts._ID)
+                    val id = it.getLong(indexID)
+                    val photo: Bitmap? = getPhoto(id)
+
                     it.columnNames.forEach { name ->
-                        contact.add(Pair(name, it.getString(it.getColumnIndex(name))))
+                        val index = it.getColumnIndex(name)
+                        map[name] = it.getString(index)
                     }
-                })
+                    friends.add(Friend(map, photo))
+                }
             }
 
-            friends.adapter =
-                ArrayAdapter<String>(this, R.layout.contact, R.id.name,
-                    contacts.map { contact ->
-                        contact.filter { !it.second.isNullOrBlank() }
-                            .joinToString { "${it.first}:${it.second}" }
-                    })
+            val adapter = ArrayAdapter<Friend>(
+                this, R.layout.contact, R.id.name,
+                friends
+            )
 
-            val nbFriends = friends.adapter.count
+            friendsList.adapter = adapter
+            friendsList.setOnItemClickListener { parent, view, position, id ->
+                val contact: String = adapter.getItem(position)?.toString() ?: "NONE"
+
+//                Snackbar.make(friendsList, contact, Snackbar.LENGTH_INDEFINITE).show()
+                Toast.makeText(this, contact, Toast.LENGTH_LONG).show()
+            }
+
+            val nbFriends = adapter.count
             welcomeTitle.text = "$nbFriends ${"friend".plural(nbFriends)} on Dunbar"
 
             Toast.makeText(this@MainActivity, "$nbFriends ", Toast.LENGTH_LONG).show()
 
-            it?.close()
+            it.close()
         }
 
 
     }
+
+    private fun getPhoto(id: Long): Bitmap? {
+        var photo: Bitmap? = null
+
+        try {
+            val inputStream = ContactsContract.Contacts.openContactPhotoInputStream(
+                contentResolver, ContentUris.withAppendedId(
+                    ContactsContract.Contacts.CONTENT_URI,
+                    java.lang.Long.valueOf(id)
+                )
+            )
+
+            if (inputStream != null) {
+                photo = BitmapFactory.decodeStream(inputStream)
+            }
+
+            inputStream?.close()
+        } catch (e: IOException) {
+            e.printStackTrace()
+        }
+        Log.d("--> ", photo.toString())
+        return photo
+    }
 }

app/src/main/res/layout/contact.xml

@@ -14,30 +14,33 @@
 
         <ImageView
             android:id="@+id/pic"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_margin="10dp"
+            android:layout_width="150dp"
+            android:layout_height="100dp"
+            android:layout_marginTop="5dp"
+            android:layout_marginEnd="10dp"
+            android:layout_marginBottom="5dp"
             android:height="150dp"
-            android:src="@android:drawable/"
+            android:contentDescription="TODO"
             android:elevation="2dp"
+            android:src="@drawable/user"
             app:layout_constraintBottom_toBottomOf="parent"
-            app:layout_constraintLeft_toLeftOf="parent"
             app:layout_constraintRight_toLeftOf="@id/name"
-            app:layout_constraintTop_toTopOf="parent"
-            tools:src="@tools:sample/avatars"
-            android:contentDescription="TODO" />
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
 
         <TextView
             android:id="@+id/name"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginLeft="15dp"
-            android:clickable="true"
-            android:focusable="true"
-            android:maxLines="2"
+            android:layout_margin="15dp"
+            android:focusable="false"
+            android:focusableInTouchMode="false"
+            android:gravity="end"
+            android:maxLines="3"
             android:textAppearance="@style/TextAppearance.AppCompat.Title"
-            android:textSize="32sp"
+            android:textSize="24sp"
             app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintLeft_toRightOf="@id/pic"
             app:layout_constraintRight_toLeftOf="@id/name"
             app:layout_constraintTop_toTopOf="parent"

app/src/main/res/layout/content_main.xml

@@ -15,15 +15,14 @@
         android:layout_height="wrap_content"
         tools:text="N friends on Dunbar"
         android:textSize="24sp"
-        app:layout_constraintBottom_toTopOf="@id/friends"
+        app:layout_constraintBottom_toTopOf="@id/friendsList"
         app:layout_constraintLeft_toLeftOf="parent"
         app:layout_constraintRight_toRightOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
     <ListView
-        android:id="@+id/friends"
+        android:id="@+id/friendsList"
         android:layout_width="match_parent"
-        android:padding="10dp"
         android:layout_height="wrap_content"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintLeft_toLeftOf="parent"