BottomNavigationViewEx: A Java repository from uiuang

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BottomNavigationViewEx

An android lib for enhancing BottomNavigationView.

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Features

Method	Description
enableAnimation	Enable or disable click item animation(text scale and icon move animation in no item shifting mode). Default true.
enableItemShiftingMode	Enable the shifting mode for each item. It will have a shifting animation for item if true. Otherwise the item text is always shown. Default true when item count > 3.
enableShiftingMode	Enable the shifting mode for navigation. It will has a shift animation if true. Otherwise all items are the same width. Default true when item count > 3.
getBottomNavigationItemView	Get private mButton in mMenuView at position
getBottomNavigationItemViews	Get private mButtons in mMenuView
getCurrentItem	Get the current checked item position.
getIconAt	Get icon at position.
getItemCount	Get item count.
getItemHeight	Get item height.
getLargeLabelAt	Get large label at position. Each item has two labels, one is large, the other is small.
getSmallLabelAt	Get small label at position. Each item has two labels, one is large, the other is small.
getMenuItemPosition	Get menu item position in menu. Return position if success, -1 otherwise.
getOnNavigationItemSelectedListener	Get OnNavigationItemSelectedListener.
setCurrentItem	Set the currently checked item.
setIconMarginTop	set margin top for icon.
setIconSize	Set all item ImageView size.
setIconSizeAt	Set all item ImageView size which is at position.
setIconsMarginTop	set margin top for all icons.
setIconTintList	Set item icon tint list.
setIconVisibility	Change the visibility of an icon.
setItemBackground	Set background of item.
setItemHeight	Set menu item height.
setLargeTextSize	Set all item large TextView size. Each item has two labels, one small and one large. The small one will be shown when item state is normal. The large one will be shown when item is checked.
setSmallTextSize	Set all item small TextView size. Each item has two labels, one small and one large. The small one will be shown when item state is normal. The large one will be shown when item is checked.
setTextSize	Set all item large and small TextView size.
setTextTintList	Set item TextView color.
setTextVisibility	Change the visibility of text.
setTypeface	set Typeface for all item TextView.
setupWithViewPager	This method will link the given ViewPager and this BottomNavigationViewEx together so that changes in one are automatically reflected in the other. This includes scroll state changes and clicks.

Example

Style

Attention: Something wrong on Android 4.x

With ViewPager

Add ViewBadger

Center Floating Action Button

Adding to project

Sdk Version

compileSdkVersion >= 25

Importing to project(choose one)

Example for Gradle:

Step 1. Add it in your root build.gradle at the end of repositories:

allprojects {
	repositories {
		...
		maven { url "https://jitpack.io" }
	}
}

Step 2. Add the dependency

new version AndroidX

implementation 'com.github.uiuang:BottomNavigationViewEx:1.0.1'

AndroidX use new version，and add config into gradle.properties

android.useAndroidX=true
android.enableJetifier=true

Manual:

Downloading BottomNavigationViewEx.java and copying it to you project.

Getting started

Adding a custom widget in xml :

<com.uiuang.bottomnavigationviewex.BottomNavigationViewEx
    android:id="@+id/bnve"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:background="@color/colorPrimary"
    app:itemIconTint="@color/selector_item_color"
    app:itemTextColor="@color/selector_item_color"
    app:menu="@menu/menu_navigation_with_view_pager" />

Binding view in Activity:

BottomNavigationViewEx bnve = (BottomNavigationViewEx) findViewById(R.id.bnve);

Disable all animations

bnve.enableAnimation(false);
bnve.enableShiftingMode(false);
bnve.enableItemShiftingMode(false);

Disable all Long Click toast tips

bnve.enableOnLongClick(true);

Custom text and icon size

bnve.setIconSize(widthDp, heightDp);
bnve.setTextSize(sp);

Binding with ViewPager

// set adapter
adapter = new VpAdapter(getSupportFragmentManager(), fragments);
bind.vp.setAdapter(adapter);

// binding with ViewPager
bind.bnve.setupWithViewPager(bind.vp);

Add badge view

Add badge lib
```
compile 'q.rorbin:badgeview:1.1.0'
```

Bind bottom view

// add badge
addBadgeAt(2, 1);

private Badge addBadgeAt(int position, int number) {
    // add badge
    return new QBadgeView(this)
            .setBadgeNumber(number)
            .setGravityOffset(12, 2, true)
            .bindTarget(bind.bnve.getBottomNavigationItemView(position))
            .setOnDragStateChangedListener(new Badge.OnDragStateChangedListener() {
                @Override
                public void onDragStateChanged(int dragState, Badge badge, View targetView) {
                    if (Badge.OnDragStateChangedListener.STATE_SUCCEED == dragState)
                        Toast.makeText(BadgeViewActivity.this, R.string.tips_badge_removed, Toast.LENGTH_SHORT).show();
                }
            });
}

Other usage in BottomNavigationViewEx

You can see the demo.

Usage in BottomNavigationView

Other usage is the same as official BottomNavigationView. You can click here for detail.

ProGuard

If you are using ProGuard you might need to add the following option:

Android X

-keep public class com.google.android.material.bottomnavigation.BottomNavigationView { *; }
-keep public class com.google.android.material.bottomnavigation.BottomNavigationMenuView { *; }
-keep public class com.google.android.material.bottomnavigation.BottomNavigationPresenter { *; }
-keep public class com.google.android.material.bottomnavigation.BottomNavigationItemView { *; }

References

The lib is based on BottomNavigationView in AndroidX material.

I found it was inflexible when I tried the demo. For example, I couldn't change the currently checked item through code. So I wrote a class to extend it to provide some useful methods.

You have no need to worry about stability, because I minimised the modifications through reflection.

Thanks

Thanks to Adrián Mouly | liaolintao | Luong Vo.

uiuang/BottomNavigationViewEx

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