我搜索了文档，但只找到了这个:
链接。这是用来使酒吧半透明?我想做的是使状态栏完全透明(如下图所示)，并使它向后兼容APK<19:
我的styles.xml:
<resources xmlns:tools="http://schemas.android.com/tools">
<style name="AppTheme" parent="Theme.AppCompat.Light">
<item name="android:actionBarStyle">@style/ThemeActionBar</item>
<item name="android:windowActionBarOverlay">true</item>
<!-- Support library compatibility -->
<item name="actionBarStyle">@style/ThemeActionBar</item>
<item name="windowActionBarOverlay">true</item>
</style>
<style name="ThemeActionBar" parent="Widget.AppCompat.Light.ActionBar.Solid">
<item name="android:background"> @null </item>
<!-- Support library compatibility -->
<item name="background">@null</item>
<item name="android:displayOptions"> showHome | useLogo</item>
<item name="displayOptions">showHome|useLogo</item>
</style>
</resources>
我能做的是:
我发现摆弄styles.xml和activity太麻烦了，因此创建了一个通用的实用工具方法，它有以下选项集
Java
Window window = getWindow();
window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
window.setStatusBarColor(Color.TRANSPARENT);
Kotlin DSL
activity.window.apply {
clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS)
addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
statusBarColor = Color.TRANSPARENT
}
这就是实现透明状态栏所需要的全部内容。希望这能有所帮助。
这是一个简单的方法，我找到了很多搜索。
步骤1
在你的主题里放这个项目
<item name="android:statusBarColor" tools:targetApi="lollipop">@android:color/transparent</item>
步骤2
主要活动
WindowCompat.setDecorFitsSystemWindows(window, false)
非常重要，如果你使用底部导航栏
在一些设备中，API 30+ u会发现系统导航栏与底部导航栏重叠，如果在你的应用中使用它。
这就解决了这个问题。
if (Build.VERSION.SDK_INT >= 30) {
// Root ViewGroup of my activity
val root = findViewById<ConstraintLayout>(R.id.root)
ViewCompat.setOnApplyWindowInsetsListener(root) { view, windowInsets ->
val insets = windowInsets.getInsets(WindowInsetsCompat.Type.systemBars())
// Apply the insets as a margin to the view. Here the system is setting
// only the bottom, left, and right dimensions, but apply whichever insets are
// appropriate to your layout. You can also update the view padding
// if that's more appropriate.
view.layoutParams = (view.layoutParams as FrameLayout.LayoutParams).apply {
leftMargin = insets.left
bottomMargin = insets.bottom
rightMargin = insets.right
}
// Return CONSUMED if you don't want want the window insets to keep being
// passed down to descendant views.
WindowInsetsCompat.CONSUMED
}
}
这个解决方案是为那些谁想要一个完全透明的状态栏和导航栏不受影响。令人难以置信的是，这听起来如此简单，以至于导致包括我在内的不止一个人头疼。
这就是我所说的最终结果
结果
我们只需要两个函数，我建议在我们的活动的OnCreate中调用，第一个是setStatusBar()，这是负责使透明的同一个。
private fun setStatusBar() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
window.apply {
clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS)
addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
decorView.systemUiVisibility =
View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN or View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR
} else {
decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
}
statusBarColor = Color.TRANSPARENT
}
}
第二个函数setedges()负责设置与顶部受限的视图相对应的边距，否则，这些视图将在StatusBar下面被看到。
private fun setMargins() {
ViewCompat.setOnApplyWindowInsetsListener(
findViewById(R.id.your_parent_view)
) { _, insets ->
val view = findViewById<FrameLayout>(R.id.your_child_view)
val params = view.layoutParams as ViewGroup.MarginLayoutParams
params.setMargins(
0,
insets.systemWindowInsetTop,
0,
0
)
view.layoutParams = params
insets.consumeSystemWindowInsets()
}
}
最终代码看起来像这样:
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.your_layout))
setStatusBar()
setMargins()
}
private fun setStatusBar() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
window.apply {
clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS)
addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
decorView.systemUiVisibility =
View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN or View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR
} else {
decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
}
statusBarColor = Color.TRANSPARENT
}
}
private fun setMargins() {
ViewCompat.setOnApplyWindowInsetsListener(
findViewById(R.id.your_parent_view)
) { _, insets ->
val view = findViewById<FrameLayout>(R.id.your_child_view)
val params = view.layoutParams as ViewGroup.MarginLayoutParams
params.setMargins(
0,
insets.systemWindowInsetTop,
0,
0
)
view.layoutParams = params
insets.consumeSystemWindowInsets()
}
}
你可以在下面的文章中找到更详细的解释
我还留下了一个测试项目，这些概念在其中发挥作用。
实现状态栏完全透明:
首先在themes.xml中创建自定义主题为
<style name="QuiloThemeLight" parent="Theme.AppCompat.Light.NoActionBar">
Java:
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
getWindow().setStatusBarColor(Color.TRANSPARENT);
芬兰湾的科特林:
activity.window.apply {
clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS)
addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
statusBarColor = Color.TRANSPARENT
}
