A list of extension functions I created for a Kinomap project

Extensions.kt

package com.kinomap.kinomapcommon.util

import android.content.SharedPreferences
import android.content.res.Resources
import android.graphics.drawable.Drawable
import android.os.Build
import android.view.View
import androidx.annotation.DrawableRes
import androidx.annotation.PluralsRes
import androidx.fragment.app.FragmentManager
import androidx.fragment.app.FragmentTransaction
import androidx.core.content.res.ResourcesCompat
import androidx.recyclerview.widget.LinearSmoothScroller
import androidx.recyclerview.widget.RecyclerView
import android.widget.Button
import android.widget.TextView
import androidx.core.content.ContextCompat
import com.kinomap.kinomapcommon.R

inline fun consume(f: () -> Unit): Boolean {
    f()
    return true
}

inline fun androidx.fragment.app.FragmentManager.inTransaction(func: androidx.fragment.app.FragmentTransaction.() -> androidx.fragment.app.FragmentTransaction) {
    beginTransaction().func().commit()
}

fun Resources.drawable(@DrawableRes drawable: Int, theme: Resources.Theme? = null): Drawable {
    return ResourcesCompat.getDrawable(this, drawable, theme)!!
}

fun Button.setDrawable(start: Int, top: Int, end: Int, bottom: Int) {
    if (Build.VERSION.SDK_INT >= 17)
        setCompoundDrawablesRelativeWithIntrinsicBounds(start, top, end, bottom)
    else
        setCompoundDrawablesWithIntrinsicBounds(start, top, end, bottom)
}

fun TextView.setDrawable(start: Int, top: Int, end: Int, bottom: Int) {
    if (Build.VERSION.SDK_INT >= 17)
        setCompoundDrawablesRelativeWithIntrinsicBounds(start, top, end, bottom)
    else
        setCompoundDrawablesWithIntrinsicBounds(start, top, end, bottom)
}

fun TextView.setDrawableLeftWithBounds(drawableId: Int, width: Int, height: Int) {
    val img: Drawable = ContextCompat.getDrawable(context, drawableId)!!
    img.setBounds(0, 0, width, height)

    if (Build.VERSION.SDK_INT >= 17)
        setCompoundDrawablesRelativeWithIntrinsicBounds(img, null, null, null)
    else
        setCompoundDrawablesWithIntrinsicBounds(img, null, null, null)
}

fun androidx.recyclerview.widget.RecyclerView.smoothSnapToPosition(position: Int, snapMode: Int = androidx.recyclerview.widget.LinearSmoothScroller.SNAP_TO_START) {
    val smoothScroller = object : androidx.recyclerview.widget.LinearSmoothScroller(this.context) {
        override fun getVerticalSnapPreference(): Int {
            return snapMode
        }

        override fun getHorizontalSnapPreference(): Int {
            return snapMode
        }
    }
    smoothScroller.targetPosition = position
    layoutManager?.startSmoothScroll(smoothScroller)
}

fun SharedPreferences.Editor.putDouble(key: String, double: Double) =
        putLong(key, java.lang.Double.doubleToRawLongBits(double))

fun SharedPreferences.getDouble(key: String, default: Double) =
        java.lang.Double.longBitsToDouble(getLong(key, java.lang.Double.doubleToRawLongBits(default)))

fun View.setSafeOnClickListener(onSafeClick: (View) -> Unit) {
    val safeClickListener = SafeClickListener {
        onSafeClick(it)
    }
    setOnClickListener(safeClickListener)
}