Question

如果我使用

启用半透明导航栏

getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);

getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);

然后工具栏位于状态栏后面（状态栏应该是彩色的，但导航栏应该是半透明的）。但是，如果我转到此活动的布局XML并放入android:fitsSystemWindows="true"，工具栏将正确布局，但导航栏则为纯色。

这是布局：

<?xml version="1.0" encoding="utf-8"?>
<me.ccrama.redditslide.Views.SidebarLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    android:background="?attr/activity_background">

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

        <View
            android:id="@+id/anchor"
            android:layout_width="1dp"
            android:layout_marginTop="4dp"
            android:layout_marginRight="3dp"

            android:layout_gravity="top|right"
            android:layout_height="1dp" />

        <me.ccrama.redditslide.Views.ToggleSwipeViewPager
            android:id="@+id/content_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

        <android.support.design.widget.AppBarLayout
            android:id="@+id/header"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <android.support.v7.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:minHeight="56dp"
                android:layout_height="?android:attr/actionBarSize"
                android:theme="@style/ActionBarCompat"
                android:title="@string/app_name" />

            <ViewStub
                android:id="@+id/stub_tabs"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:inflatedId="@+id/sliding_tabs"
                android:layout="@layout/activity_overview_tabs" />

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


    </FrameLayout>

    <ListView
        android:id="@+id/drawerlistview"
        android:layout_width="300dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:background="?attr/card_background"
        android:orientation="vertical" />

    <include
        layout="@layout/subinfo"
        android:layout_width="300dp"
        android:layout_height="match_parent"
        android:layout_gravity="end" />

</me.ccrama.redditslide.Views.SidebarLayout>

如果我将android:fitsSystemWindows="true"放在FrameLayout内，则会发生相同的行为（彩色导航栏）。

下面的第一张图片是工具栏布局混乱的时候，第二张手机是导航栏不是半透明的时候。

Answer 1

使用以下主题作为您的活动主题：

Declaration 1:    int jimmy [HEIGHT][WIDTH];

   Accessing 1:   jimmy[n][m]

Declaration 2: int jimmy [HEIGHT * WIDTH];


 Accessing 2:  jimmy[n*WIDTH+m]

并使用getNavigationBarColor（Color.TRANSPARENT）;

窗口管理

<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
</style>

窗口

            /**
     * Flag indicating that this Window is responsible for drawing the background for the
     * system bars. If set, the system bars are drawn with a transparent background and the
     * corresponding areas in this window are filled with the colors specified in
     * {@link Window#getStatusBarColor()} and {@link Window#getNavigationBarColor()}.
     */
    public static final int FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS = 0x80000000;


    /**
     * Window flag: request a translucent status bar with minimal system-provided
     * background protection.
     *
     * <p>This flag can be controlled in your theme through the
     * {@link android.R.attr#windowTranslucentStatus} attribute; this attribute
     * is automatically set for you in the standard translucent decor themes
     * such as
     * {@link android.R.style#Theme_Holo_NoActionBar_TranslucentDecor},
     * {@link android.R.style#Theme_Holo_Light_NoActionBar_TranslucentDecor},
     * {@link android.R.style#Theme_DeviceDefault_NoActionBar_TranslucentDecor}, and
     * {@link android.R.style#Theme_DeviceDefault_Light_NoActionBar_TranslucentDecor}.</p>
     *
     * <p>When this flag is enabled for a window, it automatically sets
     * the system UI visibility flags {@link View#SYSTEM_UI_FLAG_LAYOUT_STABLE} and
     * {@link View#SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN}.</p>
     */
    public static final int FLAG_TRANSLUCENT_STATUS = 0x04000000;

Answer 2

来自doc

如果您要创建自定义主题，请将其中一个主题设置为父主题或包含windowTranslucentNavigation和您主题中的windowTranslucentStatus样式属性。

所以你可以使用以下主题，但是对于Api 19 +：

值

<style name="Theme.DesignDemo" parent="Base.Theme.DesignDemo">
</style>

<style name="Base.Theme.DesignDemo" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="colorPrimary">#673AB7</item>
    <item name="colorPrimaryDark">#512DA8</item>
    <item name="colorAccent">#FF4081</item>
    <item name="android:windowTranslucentNavigation">true</item>
</style>

值-21：

  <style name="Theme.DesignDemo" parent="Base.Theme.DesignDemo">
        <item name="android:windowDrawsSystemBarBackgrounds">true</item>
        <item name="android:statusBarColor">@android:color/transparent</item>
    </style>

半透明导航栏是纯色

2 个答案: