AppExt.kt

//View Group Extensions
fun ViewGroup.inflate(@LayoutRes layout: Int, attachToRoot: Boolean = false) =
        LayoutInflater.from(context).inflate(layout, this, attachToRoot)

//Context Extensions
fun Context.showSnackbar(
  anchor: View, 
  @StringRes text: Int, 
  lenght: Int = Snackbar.LENGTH_LONG,
  @StringRes actionName: Int? = null, action: () -> Unit = {}
) {
    val snackbar = Snackbar.make(anchor, text, lenght)

    if (actionName != null) {
        snackbar.setAction(actionName) {
            action()
        }
    }

    snackbar.show()
}

fun Context.toast(@StringRes msg: Int, length: Int = Toast.LENGTH_LONG) {
    Toast.makeText(this, getString(msg), length).show()
}

fun Context.showAlertDialog(
        @StringRes title: Int,
        @StringRes message: Int,
        @StringRes positiveButtonText: Int = R.string.all_confirmar,
        positiveButtonAction: (DialogInterface) -> Unit,
        @StringRes negativeButtonText: Int = R.string.all_cancelar,
        negativeButtonAction: (DialogInterface) -> Unit = { it.dismiss() }
) {
    AlertDialog.Builder(this)
            .setTitle(title)
            .setMessage(message)
            .setPositiveButton(positiveButtonText) { dialog, _ -> positiveButtonAction(dialog) }
            .setNegativeButton(negativeButtonText, { dialog, _ -> negativeButtonAction(dialog) })
            .create()
            .show()
}


//AppCompatActivity Extensions
fun <T> AppCompatActivity.show(dialogFragment: T) where T : DialogFragment, T : TaggedFragment {
    dialogFragment.show(supportFragmentManager, dialogFragment.TAG)
}

fun AppCompatActivity.requestPermissionsCompat(permissions: Array<out String>, requestCode: Int) {
    ActivityCompat.requestPermissions(this, permissions, requestCode)
}

fun AppCompatActivity.shouldExplainRequest(permissao: String) =
        ActivityCompat.shouldShowRequestPermissionRationale(this, permissao)

fun AppCompatActivity.hasPermission(permissao: String) =
        ContextCompat.checkSelfPermission(this, permissao) == PackageManager.PERMISSION_GRANTED

fun AppCompatActivity.withToolbar(
        @IdRes id: Int = R.id.app_toolbar,
        showHome: Boolean = true,
        @DrawableRes homeIcon: Int = R.drawable.ic_menu_white_24dp
) {
    setSupportActionBar(findViewById(id))
    supportActionBar?.apply {
        setDisplayHomeAsUpEnabled(showHome)
        setHomeAsUpIndicator(homeIcon)
    }
}

fun AppCompatActivity.replaceFragment(@IdRes frameLayout: Int, fragment: Fragment) {
    supportFragmentManager.beginTransaction()
            .replace(frameLayout, fragment)
            .commit()
}

//EditText Extensions
fun EditText.addSimpleTextWatcher(function: (String) -> Unit) {
    this.addTextChangedListener(object : TextWatcher {
        override fun afterTextChanged(p0: Editable?) {
        }

        override fun beforeTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {
        }

        override fun onTextChanged(seq: CharSequence, p1: Int, p2: Int, p3: Int) {
            function(seq.toString())
        }
    })
}