Load image with placeholder. If fails, show text describing the image

Extension.kt

fun ImageView.loadImageOrInitial(
    url: String?,
    text: String?,
    textSize: Float = 16F,
    textColor: Int = Color.BLACK,
    backgroundColor: Int = Color.WHITE,
    maxChar: Int = 2,
    allCaps: Boolean = true,
    progressStroke: Float = 5F,
    progressRadius: Float = 30F,
) {
    //CircularProgressDrawable is drawable from androidx.swiperefreshlayout.widget
    val progressDrawable = CircularProgressDrawable(context)
    progressDrawable.strokeWidth = progressStroke.dp
    progressDrawable.centerRadius = progressRadius.dp
    progressDrawable.start()

    Glide.with(this)
        .load(url)
        .placeholder(progressDrawable)
        .addListener(object : RequestListener<Drawable> {
            override fun onLoadFailed(
                e: GlideException?,
                model: Any?,
                target: Target<Drawable>?,
                isFirstResource: Boolean
            ): Boolean {
                val context = this@loadImageOrInitial.context
                val textDrawable = InitialsDrawable(
                    context,
                    text ?: "",
                    textSize,
                    textColor,
                    backgroundColor,
                    maxChar,
                    allCaps,
                )
                textDrawable.setBounds(0, 0, 40, 40)
                this@loadImageOrInitial.setImageDrawable(textDrawable)
                return true
            }

            override fun onResourceReady(
                resource: Drawable?,
                model: Any?,
                target: Target<Drawable>?,
                dataSource: DataSource?,
                isFirstResource: Boolean
            ): Boolean {
                return false
            }
        })
        .into(this)
}

InitialsDrawable.kt

package com.kikota.pos.views

import android.content.Context
import android.graphics.*
import android.graphics.drawable.Drawable
import com.kikota.pos.utils.getInitials
import java.util.*


/**
 * Create initials drawable
 * [text]: Text to get the initials from it. eg: "Pizza Mozzarella" will show "PM"
 */
class InitialsDrawable(
    context: Context,
    text: String,
    textSize: Float = 16F,
    textColor: Int = Color.BLACK,
    private var backgroundColor: Int = Color.TRANSPARENT,
    maxChar: Int = 2,
    allCaps: Boolean = true,
) : Drawable() {

    private val paint: Paint = Paint()
    private var initials = if (allCaps) {
        text.getInitials(maxChar).toUpperCase(Locale.ROOT)
    } else {
        text.getInitials(maxChar)
    }

    init {
        val font = Typeface.createFromAsset(context.assets, "fonts/Nunito-Bold.ttf")
        paint.typeface = font

        val spSize = textSize * context.resources.displayMetrics.scaledDensity
        paint.textSize = spSize

        paint.color = textColor
        paint.isAntiAlias = true
        paint.textAlign = Paint.Align.CENTER
    }

    override fun draw(canvas: Canvas) {
        canvas.drawColor(backgroundColor)

        val yCenter = (bounds.exactCenterY() - (paint.descent() + paint.ascent()) / 2)
        canvas.drawText(initials, bounds.exactCenterX(), yCenter, paint)
    }

    override fun setAlpha(alpha: Int) {
        paint.alpha = alpha
    }

    override fun setColorFilter(cf: ColorFilter?) {
        paint.colorFilter = cf
    }

    override fun getOpacity(): Int {
        return PixelFormat.TRANSLUCENT
    }
}