状态栏变为白色，不显示其后的内容

我在棉花糖上试用 AppCompat。我想有一个透明的状态栏，但它变成白色。我已经尝试了一些解决方案，但他们不适合我(透明状态栏无法在 windowTranslucent導航 = “ false”中工作，Lollipop: 在 statusBar 后面绘制，并将其颜色设置为透明)。这是相关代码。

我的 styles.xml

<style name="Bacon" parent="Theme.Bacon"/>


<style name="Theme.Bacon" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">@color/theme_primary</item>
<item name="colorPrimaryDark">@color/theme_primary_dark</item>
<item name="colorAccent">@color/theme_accent</item>
<item name="windowActionBar">false</item>
<item name="windowActionBarOverlay">true</item>
<item name="windowNoTitle">true</item>
<item name="android:windowBackground">@color/background_material_light</item>
</style>


<style name="Theme.Bacon.Detail" parent="Bacon"/>

V21

<style name="Bacon" parent="Theme.Bacon">
<item name="android:windowDrawsSystemBarBackgrounds">true</item>
</style>


<style name="Theme.Bacon.Detail" parent="Bacon">
<item name="android:statusBarColor">@android:color/transparent</item>
</style>

活动

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">


<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true" />


</FrameLayout>

碎片

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">


<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="192dp"
android:fitsSystemWindows="true"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">


<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginBottom="32dp"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:statusBarScrim="@color/black_trans80">


<ImageView
android:id="@+id/photo"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:contentDescription="@string/photo"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
app:layout_collapseMode="parallax" />


<android.support.v7.widget.Toolbar
android:id="@+id/anim_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>

enter image description here

75768 次浏览
小开

Add this in your style.xml

    <item name="android:windowTranslucentStatus">true</item>
<item name="android:statusBarColor">@android:color/transparent</item>

and this in your onCreate();

 getWindow().getDecorView().setSystemUiVisibility(
View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
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My guess is that this is caused by your android:windowBackground. Is @color/background_material_light a reference to white?

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Check this Toolbar turns white - AppBar isn't drawn after being scrolled off screen

https://code.google.com/p/android/issues/detail?id=178037#c19

I'm using libraries 23.0.0. and the bug still occurs.

Workaround for this is adding View that takes nearly no space and can be invisible. See the structure below.

<android.support.v4.widget.NestedScrollView
app:layout_behavior="@string/appbar_scrolling_view_behavior">


</android.support.v4.widget.NestedScrollView>


<android.support.design.widget.AppBarLayout>


<android.support.v7.widget.Toolbar
app:layout_scrollFlags="scroll|enterAlways" />


<android.support.design.widget.TabLayout
app:layout_scrollFlags="scroll|enterAlways" />


<View
android:layout_width="match_parent"
android:layout_height=".3dp"
android:visibility="visible"/>


</android.support.design.widget.AppBarLayout>

This Questions on Stackoverflow.com refer to this bug too: CoordinatorLayout Toolbar invisible on enter until full height AppBarLayout - Layout sometimes invisible once it enters view (even if it's not entered)

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最佳答案

I fixed my issue by changing my Activity layout from FrameLayout to RelativeLayout. Thanks everybody who tried to help!

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/transparent">


<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/theme_primary_dark"
android:fitsSystemWindows="true" />


</RelativeLayout>

Try hierarchy-viewer or ViewInspector. These tools might help you.

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After unsuccessfully trying all of the above I found that explicitly setting the theme fixed the issue.

setTheme(R.style.AppTheme);

That has to go before the super.OnCreate() in your activity.

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(A little late to the party but it might help someone)

I had the exact same problem. Somehow, some activities were normal while new ones I created were showing white status bar instead of colorPrimaryDark value.

After trying several tips, I noticed that the normal-working activities where all using CoordinatorLayout as the root of the layout, while for the others I had replaced it by regular layouts because I didn't need the features (animation, etc) provided by CoordinatorLayout.

So the solution is to make CoordinatorLayout the root layout, and then inside of it add your former layout root. Here is an example:

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">


<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">


<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">


<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />


</android.support.design.widget.AppBarLayout>


<!-- your activity content here-->




</LinearLayout>
</android.support.design.widget.CoordinatorLayout>

PLEASE NOTE that without android:fitsSystemWindows="true" this solution doesn't work for me.

Tested on Lollipop and Marshmallow

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For me it worked by doing the following :

  1. Set the theme .NoActionBar
  2. Wrap the Toolbar in android.support.design.widget.AppBarLayout
  3. Make android.support.design.widget.CoordinatorLayout as the parent layout.

Essentially it is the third step that draws the status bar in the colorPrimaryDark otherwise it is not drawn if you using NoActionBar theme. 2nd step will give your toolbar that overlay.

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I found the answer in this link:Status Bar Color not changing with Relative Layout as root element

So it turns out we need remove the 

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

in styles.xml(v21). And it works just fine for me.

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I'm not sure if it's late but i hope it helps someone. * Make a fake view with transparent background that fits the layout, and make a coordinatorlayout as your root layout element.

<View
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/transparent"
android:fitsSystemWindows="true" />




<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
android:src="@drawable/something" />


<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent">


.... YOUR LAYOUT

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Just put this item in your v21\styles.xml :

true

It should look like this :

<style name="AppTheme.NoActionBar">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
<item name="android:windowDrawsSystemBarBackgrounds">true</item>
<item name="android:windowTranslucentStatus">true</item>
</style>

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I faced the same issue. What i did was, in the "v21/styles.xml" file a changed the value true:

 <item name="android:windowDrawsSystemBarBackgrounds">true</item>

to:

 <item name="android:windowDrawsSystemBarBackgrounds">false</item>
小开

Better approach

Check your style.xml file where your NoActionBar theme is there. Make sure its has parent as Theme.AppCompat.NoActionBar and also customize it by adding your color scheme. Finally set your themes in manifest as required.

Below is sample of my styles.xml file (ActionBar + NoActionBar). 

<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>


<!-- No ActionBar application theme. -->
<style name="AppTheme.NoActionBar" parent="Theme.AppCompat.NoActionBar">
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
</style>
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Just remove following tag from style v21 @android:color/transparent

This works for me.

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 <style name="AppTheme.NoActionBar">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
<item name="android:windowDrawsSystemBarBackgrounds">true</item>
<item name="android:statusBarColor">@color/colorPrimaryDark</item>
</style

Just Replace this , statusBarColor should be your expected color and not TRANSPARENT

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For styles v23 

 <style name="MyTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowLightStatusBar">true</item>
<item name="android:statusBarColor">@android:color/white</item>
</style>

For styles v21

<style name="MyTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowTranslucentStatus">true</item>
<item name="android:statusBarColor">@android:color/white</item>
</style>
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[Output]

Expand res -> values -> styles directory from project panel.

Open styles.xml (v21)

USE ANY ONE FROM BELOW WAYS

  1. Change true to false in android:windowDrawsSystemBarBackgrounds property.
  2. Change @android:color/transparent to @color/colorPrimaryDark in android:statusBarColor property.
  3. Remove the android:statusBarColor propert line.
小开

If you are using RelativeLayout / CoordinatorLayout this is the solution that worked for me:

You have to use

  • CoordinatorLayout
  • AppBarLayout

Rember to use CoordinatorLayout instead of RelativeLayout (the performance is better and perfectly works with AppBarLayout)

This is how your fragment should starts

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/background_light"
android:fitsSystemWindows="true"
>


<android.support.design.widget.AppBarLayout
android:id="@+id/main.appbar"
android:layout_width="match_parent"
android:layout_height="300dp"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
android:fitsSystemWindows="true"
>
...

Good coding!

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If your v21/styles.xml contain

<resources>
<style name="AppTheme.NoActionBar">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
<item name="android:statusBarColor">@android:color/transparent</item>
</style>
</resources>

Then, Remove or comment below line or change colour of status bar,

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

Its working fine. Hope this is helpful. Thanks.

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

You'll see that line of code in values/styles/styles.xml(v21) . Remove it and that solves the issue

Link to this answer

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You have to add this property on your style to see the content

<item name="android:windowLightStatusBar" tools:ignore="NewApi">true</item>
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I have found solution for this - 

<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="android:windowLightStatusBar">true</item>
</style>

add this into your style and it will work for api 21 or above.

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    Window window = this.getWindow();
window.setStatusBarColor(this.getResources().getColor(R.color.colorPrimaryDark));

Add this 2 line in java file below

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 <style name="AppTheme.NoActionBar">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
<item name="android:windowTranslucentStatus">true</item>
<item name="android:statusBarColor">@android:color/transparent</item>
</style>

add the 'windowTranslucentStatus' item in styles

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Add this in your style.xml

<item name="android:windowTranslucentStatus">true</item>
<item name="android:statusBarColor">@android:color/transparent</item>

Note : Status bar coloring is not supported below API level 21.

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you want this right?

try this. in [value] - [style.xml]

<style name="AppTheme" parent="Theme.AppCompat.DayNight.DarkActionBar">
<item name="android:windowLightStatusBar">true</item>
</style>

you know, don't match apptheme - parent

good luck

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Inside onCreate add the following:

getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
getWindow().setStatusBarColor(Color.WHITE);

and below

 setContentView(R.layout.activity_main);

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