问题描述
我的应用程序设置如下:
build.gradle
implementation 'com.google.android.material:material:1.1.0'
styles.xml
<style name="AlertDialogTheme" parent="ThemeOverlay.MaterialComponents.Dialog.Alert">
<item name="buttonbarNegativeButtonStyle">@style/NegativeButtonStyle</item>
<item name="buttonbarPositiveButtonStyle">@style/PositiveButtonStyle</item>
</style>
<style name="NegativeButtonStyle" parent="Widget.MaterialComponents.Button.TextButton.Dialog">
<item name="android:color">@color/colorPrimary</item>
</style>
<style name="PositiveButtonStyle" parent="Widget.MaterialComponents.Button.TextButton.Dialog">
<item name="android:color">@color/colorPrimary</item>
</style>
CheckoutFragment.kt
private fun createConfirmOrderDialog() {
val builder = AlertDialog.Builder(requireContext(),R.style.AlertDialogTheme)
builder.setTitle(getString(R.string.confirm_order))
.setMessage(dialogPrompt)
.setPositiveButton(R.string.confirm) { dialog,_ ->
viewmodel.placeOrder()
dialog.dismiss()
}
.setNegativeButton(R.string.cancel) { dialog,_ ->
dialog.dismiss()
}
builder.show()
}
colors.xml
<color name="colorAccent">#F1CB1A</color> // I have this added to the base theme
但是,此设置显示一个对话框,其中按钮文本不可见,因为文本和背景均为白色。
我该如何解决?
解决方法
使用 MaterialAlertDialogBuilder
代替AlertDialog.Builder
:
MaterialAlertDialogBuilder(context)
.setTitle("Title")
.setMessage(dialogPrompt)
.setPositiveButton("OK",listener)
.show()
按钮的默认颜色基于colorPrimary
颜色。
如果要使用自定义颜色,可以使用:
MaterialAlertDialogBuilder(context,R.style.AlertDialogTheme)
具有这种风格
<style name="AlertDialogTheme" parent="ThemeOverlay.MaterialComponents.MaterialAlertDialog">
<item name="buttonBarNegativeButtonStyle">@style/NegativeButtonStyle</item>
<item name="buttonBarPositiveButtonStyle">@style/PositiveButtonStyle</item>
</style>
<style name="NegativeButtonStyle" parent="Widget.MaterialComponents.Button.TextButton.Dialog">
<item name="android:textColor">@color/.....</item>
</style>
<style name="PositiveButtonStyle" parent="Widget.MaterialComponents.Button.TextButton.Dialog">
<item name="android:textColor">@color/....</item>
</style>