android statusbar add button key_android statusbar button-优快云博客

本文链接：https://blog.youkuaiyun.com/caibaihui/article/details/23362499

本文详细解析了Android系统UI中状态栏与通知栏的XML布局文件，包括导航栏按钮如返回键、主页键等的具体配置参数，以及日期显示、设置按钮和清除所有通知按钮的位置布局。

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http://blog.youkuaiyun.com/androiddeveloper_lee/article/details/8900005

http://blog.youkuaiyun.com/zhou123shao/article/details/7721364

（没有图标，我将recentapp当作音量减）

framework/base/packages/systemUI/res/layout/startus_bar.xml

<com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/back"
            android:layout_width="@dimen/navigation_key_width"
            android:layout_height="match_parent"
            android:src="@drawable/ic_sysbar_back"
            systemui:keyCode="4"
            android:contentDescription="@string/accessibility_back"
            systemui:glowBackground="@drawable/ic_sysbar_highlight"
            />
                <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/home"
                    android:layout_width="@dimen/navigation_key_width"
                    android:layout_height="match_parent"
                    android:src="@drawable/ic_sysbar_home"
                    systemui:keyCode="3"
                    android:contentDescription="@string/accessibility_home"
                    systemui:glowBackground="@drawable/ic_sysbar_highlight"
                    />
                <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/recent_apps"
                    android:layout_width="@dimen/navigation_key_width"
                    android:layout_height="match_parent"
                    android:src="@drawable/ic_sysbar_recent"
            systemui:keyCode="25"
                    android:contentDescription="@string/accessibility_recent"
                    systemui:glowBackground="@drawable/ic_sysbar_highlight"
                    />
                <com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/menu"
                    android:layout_width="@dimen/navigation_menu_key_width"
                    android:layout_height="match_parent"
                    android:src="@drawable/ic_sysbar_menu"
                    systemui:keyCode="82"
                    android:visibility="visible"
                    android:contentDescription="@string/accessibility_menu"
                    systemui:glowBackground="@drawable/ic_sysbar_highlight"

recentapp的keycode是187。音量加是24

    <RelativeLayout android:background="@drawable/notification_header_bg" android:paddingTop="3.0dip" android:paddingRight="3.0dip" android:paddingBottom="5.0dip" android:layout_width="fill_parent" android:layout_height="52.0dip">
        <com.android.systemui.statusbar.policy.DateView 
        android:textAppearance="@style/TextAppearance.StatusBar.Date" 
        android:gravity="left|center" android:id="@id/date" 
        android:paddingLeft="16.0dip" android:layout_width="wrap_content" 
        android:layout_height="fill_parent" android:singleLine="true" 
        android:layout_alignParentLeft="true" />
        <ImageView android:id="@id/settings_button" android:paddingLeft="8.0dip" 
       android:paddingRight="8.0dip" android:layout_width="wrap_content" 
            android:layout_height="fill_parent" android:src="@drawable/ic_notify_quicksettings" android:layout_toRightOf="@id/date" android:contentDescription="@string/accessibility_settings_button" />
        <ImageView android:id="@id/clear_all_button" android:paddingLeft="8.0dip" android:paddingRight="8.0dip" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/ic_notify_clear" android:layout_alignParentRight="true" android:contentDescription="@string/accessibility_clear_all" />
    </RelativeLayout>

    <RelativeLayout android:background="@drawable/notification_header_bg" android:paddingTop="3.0dip" android:paddingRight="3.0dip" android:paddingBottom="5.0dip" android:layout_width="fill_parent" android:layout_height="52.0dip">
        <com.android.systemui.statusbar.policy.DateView android:textAppearance="@style/TextAppearance.StatusBar.Date" android:gravity="left|center" android:id="@id/date" android:paddingLeft="16.0dip" android:layout_width="wrap_content" android:layout_height="fill_parent" android:singleLine="true" android:layout_alignParentLeft="true" />
        <ImageView android:id="@id/settings_button" android:paddingLeft="8.0dip" android:paddingRight="4.0dip" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/ic_notify_quicksettings" android:layout_toRightOf="@id/date" android:contentDescription="@string/accessibility_settings_button" />
        <com.android.systemui.statusbar.policy.KeyButtonView android:paddingLeft="4.0dip" android:paddingRight="4.0dip" android:id="@id/recent_apps" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/ic_sysbar_recent" android:layout_toRightOf="@id/settings_button" android:contentDescription="@string/accessibility_recent" systemui:keyCode="187" systemui:glowBackground="@drawable/ic_sysbar_highlight" />
        <ImageView android:id="@id/clear_all_button" android:paddingLeft="8.0dip" android:paddingRight="8.0dip" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/ic_notify_clear" android:layout_alignParentRight="true" android:contentDescription="@string/accessibility_clear_all" />