Only work for SDK >= 19.

Demo Download

Add it in your root build.gradle at the end of repositories:

allprojects {
	repositories {
		...
		maven { url "https://jitpack.io" }
	}
}

Add the dependency

dependencies {
	// After AndroidX
	implementation ('com.github.niorgai:StatusBarCompat:2.3.3', {
	    exclude group: 'androidx.appcompat:appcompat'
	    exclude group: 'com.google.android.material:material'
	})
	// Before AndroidX
	compile ('com.github.niorgai:StatusBarCompat:2.1.4', {
	    exclude group: 'com.android.support'
	})
}

KITKAT(19)	LOLLIPOP(21)

TranslucentStatusBar	SetStatusBarColor

This is a utils for status bar, And you do not need to change your style.xml file.

The most important feature is you can toggle setStatusBarColor and translucentStatusBar without recreate activity.

	//set color for status bar
	StatusBarCompat.setStatusBarColor(Activity activity, int color)
	//add alpha to color
	StatusBarCompat.setStatusBarColor(Activity activity, int statusColor, int alpha)
	
	//translucent status bar
	StatusBarCompat.translucentStatusBar(activity);
	//should hide status bar background (default black background) when SDK >= 21
	StatusBarCompat.translucentStatusBar(Activity activity, boolean hideStatusBarBackground);

	//set color for CollapsingToolbarLayout
	setStatusBarColorForCollapsingToolbar(Activity activity, AppBarLayout appBarLayout, CollapsingToolbarLayout collapsingToolbarLayout,
                                                                         Toolbar toolbar, int statusColor)
	
	//Change to Light status bar (convert icon and text color to dark, SDK >= 23)
	changeToLightStatusBar(Activity activity)
	
	//Cancel Light status bar (convert icon and text color to light)
	cancelLightStatusBar(Activity activity)

1. Use it after call setContentView
2. If use FullScreen Activity, must call StatusBarCompat.translucentStatusBar(activity);
3. If you want to set light status bar, Remember call changeToLightStatusBar() at last.

Demo shows One Activity with four Fragments.

1. CommonFragment call setStatusBarColor method, SeekBar can change statusBar's alpha.
2. TranslucentFragment call translucentStatusBar method, when sdk >= 21, button can toggle hide/show statusBar's shadow.
3. DrawerFragment call setStatusBarColor method, show how to compat for DrawerLayout and CoordinatorLayout.
4. CollapsingFragment call setStatusBarColorForCollapsingToolbar method, compat for CollapsingToolbarLayout.
5. Each Fragment can toggle Light status bar with Checkbox.

These problem only show in SDK between 19 and 21:

1. If work with TabActivity, It will show a black line in contentView, so you can call StatusBarCompat.setStatusBarColor(Activity activity, int statusColor, int alpha) and the suggest alpha is 112.
2. If first view is DrawerLayout, let its child view set fitsSystemWindow to false.
3. When use translucentStatusBar, the method set View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN to Window, so there will be AndroidBug5497 if work with softInputKeyboard, try Workaround to get help.

1. Blog Android-translucent-status-bar.

透明状态栏只有在 SDK >= 19 (Android 4.4) 才会生效.

透明状态栏	设置状态栏的颜色

这是一个为了兼容处理状态栏的工具类,可以不需要设置不同的style.xml文件,最重要的特性就是可以在**不重启 Activity 的情况下切换 setStatusBarColor 和 translucentStatusBar **. 提供以下 API :

//设置状态栏的颜色
StatusBarCompat.setStatusBarColor(Activity activity, int color)
//添加alpha值
StatusBarCompat.setStatusBarColor(Activity activity, int statusColor, int alpha)

//透明状态栏
StatusBarCompat.translucentStatusBar(activity);
//SDK >= 21时, 取消状态栏的阴影
StatusBarCompat.translucentStatusBar(Activity activity, boolean hideStatusBarBackground);

//为 CollapsingToolbarLayout 设置颜色
setStatusBarColorForCollapsingToolbar(Activity activity, AppBarLayout appBarLayout, CollapsingToolbarLayout collapsingToolbarLayout, Toolbar toolbar, int statusColor)

//SDK >= 23, 将状态栏改为浅色模式(状态栏 icon 和字体会变成深色)
changeToLightStatusBar(Activity activity)
	
//将状态栏改为深色模式(状态栏 icon 和字体会变成浅色, 即默认模式)
cancelLightStatusBar(Activity activity)

1. 在 setContentView 方法调用后再设置.
2. 如果要使用全屏 Activity , 调用 StatusBarCompat.translucentStatusBar(activity) .
3. 如果想让状态栏图标变成深色, 记得最后调用 changeToLightStatusBar(activity) .

Demo 只有一个 Activity , 分四个 Tab.

1. CommonFragment 为正常布局, 可以通过 SeekBar 来调整状态栏颜色的 alpha 值. 调用方法为: setStatusBarColor.
2. TranslucentFragment 为图片布局, 展示透明状态栏效果, SDK >= 21时, 可以通过按钮显示\隐藏 statusBar 的 shadow, 调用方法为: translucentStatusBar.
3. DrawerFragment 展示 DrawerLayout + CoordinatorLayout, 调用方法为: setStatusBarColor.
4. CollapsingFragment 展示 CollapsingLayout 的适配效果, 调用方法为: setStatusBarColorForCollapsingToolbar.
5. 每个 Fragment 下都可以通过 Checkbox 切换浅色/深色状态栏.

这些问题仅仅出现在 4.4 上

1. 如果用在 TabActivity 上, 会有一条黑线在状态栏下面, 推荐使用 StatusBarCompat.setStatusBarColor(Activity activity, int statusColor, int alpha) 方法, 推荐的透明值为 112.
2. 如果 layout 中第一个 View 为 DrawerLayout, 那么它的子 View 的 fitsSystemWindow 需要设置为 false.
3. 调用 translucentStatusBar 方法时, 会给 Window 设置 View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN, 这个 Flag 和软键盘一起使用的时候可能会导致 AndroidBug5497, 可以尝试使用 这个方法 解决.

在我的博客 Android-translucent-status-bar 中可以查看更多细节.

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