Delete RocketChatUserAvatar and RocketChatUserAvatarTest class.

app/src/main/java/chat/rocket/android/helper/RocketChatUserAvatar.kt

-package chat.rocket.android.helper
-
-import android.content.Context
-import android.graphics.Typeface
-import android.graphics.drawable.Drawable
-import com.amulyakhare.textdrawable.TextDrawable
-import java.net.URLEncoder
-
-object RocketChatUserAvatar {
-
-    /**
-     * Returns the user avatar URI.
-     *
-     * REMARK: This is often a SVG image (Rocket.Chat:server/startup/avatar.js).
-     *
-     * @param hostname The server's hostname.
-     * @param username The username.
-     * @return The user avatar URI.
-     * @see getImageFormat
-     */
-    fun getUri(hostname : String, username: String): String {
-        return "https://" +
-                hostname.replace("http://", "").replace("https://", "") +
-                "/avatar/" +
-                URLEncoder.encode(username, "UTF-8")
-    }
-
-    /**
-     * Returns the user avatar image format.
-     *
-     * @param uri The user avatar image URI to get the image format.
-     * @return The user avatar image format. Possible values are: "image/jpeg", "image/png" and "image/svg+xml".
-     * @see getUri
-     */
-    fun getImageFormat(uri: String): String {
-        return OkHttpHelper.getContentType(uri)
-    }
-
-    /**
-     * Returns a drawable with username initials.
-     *
-     * @param username The username.
-     * @param context The context.
-     * @return A drawable with username initials.
-     * @see getUsernameInitials
-     */
-    fun getTextDrawable(username: String, context: Context): Drawable {
-        val round = (4 * context.resources.displayMetrics.density).toInt()
-
-        return TextDrawable.builder()
-                .beginConfig()
-                .useFont(Typeface.SANS_SERIF)
-                .endConfig()
-                .buildRoundRect(getUsernameInitials(username), getUserAvatarBackgroundColor(username), round)
-    }
-
-    /**
-     * Returns a string with the username initials. For example: username John Doe returns JD initials.
-     *
-     * @param username The username.
-     * @return A string with username initials.
-     */
-    fun getUsernameInitials(username: String): String {
-        if (username.isEmpty()) {
-            return "?"
-        }
-
-        val splitUsername = username.split(".")
-        if (splitUsername.size > 1) {
-            return (splitUsername[0].substring(0, 1) + splitUsername[splitUsername.size - 1].substring(0, 1)).toUpperCase()
-        } else {
-            if (username.length > 1) {
-                return username.substring(0, 2).toUpperCase()
-            } else {
-                return username.substring(0, 1).toUpperCase()
-            }
-        }
-    }
-
-    /**
-     * Returns a background color to be rendered on the user avatar (Rocket.Chat:server/startup/avatar.js).
-     *
-     * @param username The username.
-     * @return A hexadecimal color.
-     */
-    fun getUserAvatarBackgroundColor(username: String): Int {
-        return COLORS[username.length % COLORS.size]
-    }
-
-    private val COLORS = intArrayOf(
-            0xFFF44336.toInt(), 0xFFE91E63.toInt(), 0xFF9C27B0.toInt(), 0xFF673AB7.toInt(), 0xFF3F51B5.toInt(),
-            0xFF2196F3.toInt(), 0xFF03A9F4.toInt(), 0xFF00BCD4.toInt(), 0xFF009688.toInt(), 0xFF4CAF50.toInt(),
-            0xFF8BC34A.toInt(), 0xFFCDDC39.toInt(), 0xFFFFC107.toInt(), 0xFFFF9800.toInt(), 0xFFFF5722.toInt(),
-            0xFF795548.toInt(), 0xFF9E9E9E.toInt(), 0xFF607D8B.toInt())
-}
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app/src/test/kotlin/RocketChatUserAvatarTest.kt

-import chat.rocket.android.helper.RocketChatUserAvatar
-import org.junit.Test
-
-class RocketChatUserAvatarTest {
-
-    @Test
-    fun getUsernameInitialsTest() {
-        assert(RocketChatUserAvatar.getUsernameInitials("") == "?")
-        assert(RocketChatUserAvatar.getUsernameInitials("?") == "?")
-        assert(RocketChatUserAvatar.getUsernameInitials("f") == "F")
-        assert(RocketChatUserAvatar.getUsernameInitials("B") == "B")
-        assert(RocketChatUserAvatar.getUsernameInitials("fo") == "FO")
-        assert(RocketChatUserAvatar.getUsernameInitials("FO") == "FO")
-        assert(RocketChatUserAvatar.getUsernameInitials("fOo") == "FO")
-        assert(RocketChatUserAvatar.getUsernameInitials("FOO") == "FO")
-        assert(RocketChatUserAvatar.getUsernameInitials("F.O") == "FO")
-        assert(RocketChatUserAvatar.getUsernameInitials("F.o") == "FO")
-        assert(RocketChatUserAvatar.getUsernameInitials("Foo.bar") == "FB")
-        assert(RocketChatUserAvatar.getUsernameInitials("Foobar.bar") == "FB")
-        assert(RocketChatUserAvatar.getUsernameInitials("Foobar.bar.zab") == "FZ")
-    }
-}
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