Aligning drawableLeft with text of button

Question

Here is my layout:

The issue I\'m facing is with the drawable checkmark. H

Answer 1

This is now available in the Material Button by default with the app:iconGravity property. However, the Material Button does not allow for setting the background to a drawable (RIP gradients).

I converted the answers by @BobDickinson and @David-Medenjak above to kotlin and it works great.

import android.content.Context
import android.graphics.Canvas
import android.util.AttributeSet
import android.view.Gravity
import androidx.appcompat.widget.AppCompatButton
import kotlin.math.max

class CenteredButton @JvmOverloads constructor(
  context: Context,
  attrs: AttributeSet? = null,
  defStyle: Int = R.attr.buttonStyle
) : AppCompatButton(context, attrs, defStyle) {

  init {
    gravity = Gravity.LEFT or Gravity.CENTER_VERTICAL
  }

  override fun onDraw(canvas: Canvas) {
    val buttonContentWidth = (width - paddingLeft - paddingRight).toFloat()

    var textWidth = 0f
    layout?.let {
      for (i in 0 until layout.lineCount) {
        textWidth = max(textWidth, layout.getLineRight(i))
      }
    }

    val drawableLeft = compoundDrawables[0]
    val drawableWidth = drawableLeft?.intrinsicWidth ?: 0
    val drawablePadding = if (textWidth > 0 && drawableLeft != null) compoundDrawablePadding else 0

    val bodyWidth = textWidth + drawableWidth.toFloat() + drawablePadding.toFloat()

    canvas.save()
    canvas.translate((buttonContentWidth - bodyWidth) / 2, 0f)
    super.onDraw(canvas)
    canvas.restore()
  }
}