这就是我在奇巧(KitKat)的做法，而且效果不错。

public static void setTaskBarColored(Activity context) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
        {
            Window w = context.getWindow();
            w.setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            //status bar height
            int statusBarHeight = Utilities.getStatusBarHeight(context);

            View view = new View(context);
            view.setLayoutParams(new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
            view.getLayoutParams().height = statusBarHeight;
            ((ViewGroup) w.getDecorView()).addView(view);
            view.setBackgroundColor(context.getResources().getColor(R.color.colorPrimaryTaskBar));
        }
    }

Android 5.0棒棒糖引入了材质设计主题，根据主题的colorPrimaryDark值自动为状态栏上色。

realdognose注意:在材质设计库中，它将是colorPrimaryVariant

由于从版本21开始的support-v7-appcompat库，设备pre-lollipop支持这一点。Chris Banes关于支持appcompat v21的博文

在官方Android开发者网站上阅读更多关于材质主题的信息

此解决方案仅适用于API >= 23。 在API级别30中，setSystemUiVisibility()已弃用。因此你应该像下面这样使用WindowInsetsControllerCompat

fun changeColorStatusBar(color: Int = R.color.white) {
        val window: Window = window
        val decorView = window.decorView
        val wic = WindowInsetsControllerCompat(window, decorView)
        wic.isAppearanceLightStatusBars = true
        // And then you can set any background color to the status bar.
        window.statusBarColor = ContextCompat.getColor(this, color)
    }

<style name="AppTheme" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
    <!-- Primary brand color. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorPrimaryVariant">@color/colorPrimaryDark</item>
    <item name="colorOnPrimary">@color/white</item>
    <!-- Secondary brand color. -->
    <item name="colorOnSecondary">@color/black</item>
    <!-- Status bar color. -->
    <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
    <!-- Customize your theme here. -->
</style>

注意:设置colorPrimaryVariant

在values/theme.xml中，添加命名为name="android:statusBarColor"的项。

 <resources xmlns:tools="http://schemas.android.com/tools">
        <style name="Theme.YourAppName" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
            ...
            ...
            ...
            <!-- Status bar color. -->
            <item name="android:statusBarColor" tools:targetApi="l">@color/purple_700</item>
        </style>
    </resources>

Java开发人员:

正如@Niels所说，你必须在values-v21/styles.xml中放置:

<item name="android:statusBarColor">@color/black</item>

但是如果你想要单个样式。xml，需要添加工具:targetApi="lollipop"，比如:

<item name="android:statusBarColor" tools:targetApi="lollipop">@color/black</item>

对于Kotlin开发者:

window.statusBarColor = ContextCompat.getColor(this, R.color.color_name)