BottomNavigationBar

The bottom navigation widget based on the menu. Instant preview, WYSIWYG.

Note: The widget doesn't support shift mode, use the BottomNavigationView from Google instead if need. The BottomNavigationView is also recommended if you just need a simple bottom navigation bar and no other features are required. In addition, all features of the widget have not yet been completed, such as the badge. So the current version is not the final stable version, and the pull requests are currently not accepted. More features will be released in subsequent versions.

Quick Start

Add dependency

dependencies {
    implementation 'io.github.vejei.bottomnavigationbar:bottomnavigationbar:x.y.z'
}

Set up

Add BottomNavigationBar to your layout, and specify the navigation_menu attribute:

<io.github.vejei.bottomnavigationbar.BottomNavigationBar
    android:id="@+id/bar_five_items"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:navigation_menu="@menu/bottom_nav_five_items" />

Menu resource sample:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+id/home" android:title="@string/menu_home" android:icon="@drawable/ic_home_filled"/>
    <item android:id="@+id/explore" android:title="@string/menu_explore" android:icon="@drawable/ic_explore_filled"/>
    <item android:id="@+id/collections" android:title="@string/menu_collections" android:icon="@drawable/ic_collections_filled"/>
    <item android:id="@+id/school" android:title="@string/menu_school" android:icon="@drawable/ic_school_filled"/>
    <item android:id="@+id/account" android:title="@string/menu_account" android:icon="@drawable/ic_account_filled"/>
</menu>

Tutorial

Set up item background

The item background is specified by the item_background attribute, if not specified, the item_ripple_color will be used as the background. If neither is specified, the default value is used. item_ripple_color can be a color value directly or ColorStateList. If item background is specified by item_ripple_color, item_ripple_enabled used to enabled or disable ripple background. item_unbounded_ripple specify the ripple background unbounded or bounded, true is unbounded, false is bounded, default value is true.

item_unbounded_ripple=true：

item_unbounded_ripple=false：

item_ripple_enabled=false：

Check item_ripple_samples.xml for sample code.

Set up item label and icon color

The label and icon colors are specified by item_label_text_color and item_icon_tint respectively. Note, the android:textColor in item_label_text_appearance_inactive and item_label_text_appearance_active will be ignore, so always use the item_label_text_color to specify label text color.

Check item_color_samples.xml for sample code.

Set up text appearacne for item label

item_label_text_appearance_inactive for unselected item's label text appearance, and item_label_text_appearance_active for selected item's label text appearance.

Check label_text_appearance_samples.xml for sample code.

Change item label visibility mode

The item_label_visibility_mode determines the visibility of item label, only support always and never mode currently. In always mode, label always visible, and only icon in never mode.

Change icon on item status change

Create a StateListDrawable：

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_checked="true" android:drawable="@drawable/ic_home_filled"/>
    <item android:drawable="@drawable/ic_home_outlined"/>
</selector>

In your menu resource (specified by navigation_menu), use the icon with the .xml suffix instead of the original .png suffix.

Check bottom_nav_change_icon.xml and change_icon_sample.xml for sample code.

Add action view

Using action_layout to specify your action layout, and action_view_attach_mode specify the attach mode, which is used to determine how the action view attaches to the bar.