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I'm new to android. I wanted to set the app's background to white so I specified this in style file in app theme. But after doing so what I found is my app's tab layout and menu items background also turned to white. I have no idea what to do. Tried to find the solution but couldn't found.

styles.xml

<resources>

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

</resources>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical">

    <include
        android:id="@+id/toolbar"
        layout="@layout/toolbar_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>

<!-- THIS IS THE VIEW PAGER WIDGET, WHICH IS BASICALLY A CONTAINER OR PARENT FOR FRAGMENTS.
     IT GETS ITS SUPPLIES FROM PAGER ADAPTER. :) -->
<android.support.v4.view.ViewPager
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    android:id="@+id/viewpager">

    <android.support.design.widget.TabLayout
        android:id="@+id/tab_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="top"
        app:tabBackground="@color/colorPrimary">

        <android.support.design.widget.TabItem
            android:layout_height="wrap_content"
            android:layout_width="wrap_content"
            android:text="@string/tab_stock"/>

        <android.support.design.widget.TabItem
            android:layout_height="wrap_content"
            android:layout_width="wrap_content"
            android:text="@string/tab_sale"/>

        <android.support.design.widget.TabItem
            android:layout_height="wrap_content"
            android:layout_width="wrap_content"
            android:text="@string/tab_purchase"/>

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

</android.support.v4.view.ViewPager>

</LinearLayout>

colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorPrimary">#008577</color>
    <color name="colorPrimaryDark">#00574B</color>
    <color name="colorAccent">#D81B60</color>
    <color name="white">#ffffff</color>

    <!-- COLOR FOR STOCK FRAGMENT' SUB HEADINGS -->
    <color name="colorSubHeading">#03A9F4</color>
    <color name="black">#000000</color>

</resources>

In the end I'd like to mention that I removed action bar and instead using toolbar. Thanks in advance.

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1 回答 1

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通过设置android:background您的样式，它会影响（几乎）我猜测的所有内容。只需设置android:background="@color/white"为您的 activity_main.xml 的根 LinearLayout，例如

<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="match_parent"
android:layout_width="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:background="@color/white"
android:orientation="vertical">

它应该可以按您的意愿工作。

编辑：

如果要设置所有活动的背景，请参阅此 SO Post。

基本上themes.xml，您可以为android:windowBackground所需的每个 Activity 或AndroidManifest.xml文件中的整个 App 创建一个android:theme="@style/CustomTheme".

于 2019-01-01T18:18:13.300 回答