CurvedBottomNavigation

A simple android library which helps you to create a curved bottom navigation

DEMO

Setup

Update your module level build.gradle file and add the following dependency. Please check the project releases for latest versions.

dependencies {
 implementation 'com.github.qamarelsafadi:CurvedBottomNavigation:0.1.3'
}

Important! if your android studio version is fox and higher please add the following dependency in your project level build.gradle above plugins

buildscript {
    repositories {
        google()
        mavenCentral()
        maven { url 'https://jitpack.io' }
    }
}

Usage

Add com.qamar.curvedbottomnaviagtion.CurvedBottomNavigation in your layout xml file.

    <com.qamar.curvedbottomnaviagtion.CurvedBottomNavigation
        android:id="@+id/bottomNavigation"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:cbn_background="@color/black"
        app:cbn_fabColor="@color/purple_200"
        app:cbn_iconColor="@color/white"
        app:cbn_height="76dp"
        app:cbn_icon_size="24dp"
        app:cbn_curve_radius="26dp"
        app:cbn_selected_icon_size="48dp"
        app:cbn_selectedIconColor="@color/white"
        app:cbn_titleColor="@color/white"
        app:cbn_titleFont="@font/book"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent" />

XML Attributes

Attribute	Description
app:cbn_background	Background for bottom navigation view
app:cbn_fabColor	Background for FAB view
app:cbn_iconColor	Icon color tint
app:cbn_height	Bottom navigation height
app:cbn_icon_size	Icon item size
app:cbn_curve_radius	Curve raduis
app:cbn_selected_icon_size	Selected icon item size
app:cbn_selectedIconColor	FAB icon tint color
app:cbn_titleColor	Item title text color
app:cbn_titleFont	Item title font type

Setup on code

In your Activiy defined the ids of your items

    companion object {
        // you can put any unique id here, but because I am using Navigation Component I prefer to put it as
        // the fragment id.
        const val HOME_ITEM = R.id.homeFragment
        const val OFFERS_ITEM = R.id.offersFragment
        const val MORE_ITEM = R.id.moreFragment
        const val SECTION_ITEM = R.id.sectionFragment
        const val CART_ITEM = R.id.cartFragment
        const val BLANK_ITEM = R.id.blankFragment
    }

In onCreate

  initNavHost()
  setUpBottomNavigation()

Let's setup our Navigation Component // this step is optional but I prefer it

  private fun initNavHost() {
        val navHostFragment = supportFragmentManager.findFragmentById(R.id.nav_host_fragment) as NavHostFragment
        navController = navHostFragment.navController
    }

Now let's create our CurvedNavigationBottomItems

   private fun ActivityMainBinding.setUpBottomNavigation() {
        val bottomNavigationItems = mutableListOf(
            CurvedBottomNavigation.Model(HOME_ITEM, getString(R.string.home), R.drawable._01_home),
            CurvedBottomNavigation.Model(OFFERS_ITEM, getString(R.string.offers), R.drawable.offers),
            CurvedBottomNavigation.Model(SECTION_ITEM, getString(R.string.sections), R.drawable.section),
            CurvedBottomNavigation.Model(CART_ITEM, getString(R.string.cart), R.drawable.cart),
            CurvedBottomNavigation.Model(MORE_ITEM, getString(R.string.more), R.drawable.more),
            CurvedBottomNavigation.Model(BLANK_ITEM, getString(R.string.more), R.drawable.more),
        )
        bottomNavigation.apply {
            bottomNavigationItems.forEach { add(it) }
            setOnClickMenuListener {
                navController.navigate(it.id)
            }
            show(HOME_ITEM)
            // optional
            setupNavController(navController)
        }
    }

And

  // if you need your backstack of your items always back to home please override this method
    override fun onBackPressed() {
        if (navController.currentDestination!!.id == HOME_ITEM)
            super.onBackPressed()
        else {
            when (navController.currentDestination!!.id) {
              OFFERS_ITEM -> {
                    navController.popBackStack(R.id.homeFragment, false)
                }
               SECTION_ITEM -> {
                    navController.popBackStack(R.id.homeFragment, false)
                }
                CART_ITEM -> {
                    navController.popBackStack(R.id.homeFragment, false)
                }
               MORE_ITEM -> {
                    navController.popBackStack(R.id.homeFragment, false)
                }
                else -> {
                    navController.navigateUp()
                }
            }
        }
    }

Credits

This library is inspired by Meow Bottom Navigation it helps me a lot to do this but seems like the owner is not reciveing the pull requests and I needed more custome components this Library comes out 🚀.