将alertdialog按钮对准样式居中

问题描述

这是我的自定义警报对话框：

    <style name="AlertDialogCustom" parent="Theme.AppCompat.DayNight.Dialog">
    <item name="android:windowBackground">@drawable/alert_bg</item>
    <item name="buttonbarNegativeButtonStyle">@style/NegativeButtonStyle</item>
    <item name="buttonbarPositiveButtonStyle">@style/PositiveButtonStyle</item>
    <item name="android:paddingBottom">3dip</item>
</style>

<style name="PositiveButtonStyle" parent="Widget.AppCompat.Button.Colored">
    <item name="android:textColor">@color/colorPrimary</item>
    <item name="android:background">@drawable/alert_btn_yes</item>
</style>
<style name="NegativeButtonStyle" parent="Widget.AppCompat.Button.Colored">
    <item name="android:textColor">@color/colorPrimary</item>
    <item name="android:textSize">14sp</item>
    <item name="android:background">@drawable/alert_btn_no</item>

</style>

我希望对齐按钮居中：

解决方法

您可以在运行时dialog.getButton(AlertDialog.BUTTON_POSITIVE)获得正/负按钮，并更改layout params属性并将按钮对齐到中心。

val btnPositive: Button = dialog.getButton(AlertDialog.BUTTON_POSITIVE)
val lpPositive = btnPositive.layoutParams as LinearLayout.LayoutParams
lpPositive.gravity = Gravity.CENTER
btnPositive.layoutParams = lpPositive