ThemeUtils.kt
/*
* Copyright 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.core.splashscreen
import android.content.res.Resources
import android.util.TypedValue
import android.view.View
import android.view.WindowInsetsController
import androidx.annotation.DoNotInline
import androidx.annotation.RequiresApi
/**
* Utility function for applying themes fixes to the system bar when the [SplashScreenViewProvider]
* is added and removed.
*/
@RequiresApi(31)
internal object ThemeUtils {
object Api31 {
/**
* Apply the theme's values for the system bar appearance to the decorView.
*
* This needs to be called when the [SplashScreenViewProvider] is added and after it's been
* removed.
*/
@JvmStatic
@JvmOverloads
@DoNotInline
fun applyThemesSystemBarAppearance(
theme: Resources.Theme,
decor: View,
tv: TypedValue = TypedValue()
) {
var appearance = 0
val mask =
WindowInsetsController.APPEARANCE_LIGHT_STATUS_BARS or
WindowInsetsController.APPEARANCE_LIGHT_NAVIGATION_BARS
if (theme.resolveAttribute(android.R.attr.windowLightStatusBar, tv, true)) {
if (tv.data != 0) {
appearance = appearance or WindowInsetsController.APPEARANCE_LIGHT_STATUS_BARS
}
}
if (theme.resolveAttribute(android.R.attr.windowLightNavigationBar, tv, true)) {
if (tv.data != 0) {
appearance =
appearance or WindowInsetsController.APPEARANCE_LIGHT_NAVIGATION_BARS
}
}
decor.windowInsetsController!!.setSystemBarsAppearance(appearance, mask)
}
}
}