added bottom navigation view example

BottomNavigationView/.gitignore

@@ -0,0 +1,9 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.externalNativeBuild

BottomNavigationView/app/.gitignore

@@ -0,0 +1 @@
+/build

BottomNavigationView/app/build.gradle

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+apply plugin: 'com.android.application'
+
+apply plugin: 'kotlin-android'
+
+apply plugin: 'kotlin-android-extensions'
+
+android {
+    compileSdkVersion 26
+    defaultConfig {
+        applicationId "com.anshdeep.bottomnavigationview"
+        minSdkVersion 15
+        targetSdkVersion 26
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
+    implementation 'com.android.support:appcompat-v7:26.1.0'
+    implementation 'com.android.support:design:26.1.0'
+    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+}

BottomNavigationView/app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

BottomNavigationView/app/src/androidTest/java/com/anshdeep/bottomnavigationview/ExampleInstrumentedTest.kt

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+package com.anshdeep.bottomnavigationview
+
+import android.support.test.InstrumentationRegistry
+import android.support.test.runner.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getTargetContext()
+        assertEquals("com.anshdeep.bottomnavigationview", appContext.packageName)
+    }
+}

BottomNavigationView/app/src/main/AndroidManifest.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest package="com.anshdeep.bottomnavigationview"
+          xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

BottomNavigationView/app/src/main/java/com/anshdeep/bottomnavigationview/FragmentDashboard.kt

@@ -0,0 +1,17 @@
+package com.anshdeep.bottomnavigationview
+
+import android.os.Bundle
+import android.support.v4.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+
+/**
+ * Created by ansh on 21/02/18.
+ */
+class FragmentDashboard : Fragment() {
+
+    override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater!!.inflate(R.layout.fragment_dashboard, container, false)
+    }
+}

BottomNavigationView/app/src/main/java/com/anshdeep/bottomnavigationview/FragmentHome.kt

@@ -0,0 +1,30 @@
+package com.anshdeep.bottomnavigationview
+
+import android.os.Bundle
+import android.support.v4.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+
+/**
+ * Created by ansh on 21/02/18.
+ */
+class FragmentHome : Fragment() {
+
+    /**
+     * Initialize newInstance for passing parameters
+     */
+    companion object {
+        fun newInstance(): FragmentHome {
+            val fragmentHome = FragmentHome()
+            val args = Bundle()
+            fragmentHome.arguments = args
+            return fragmentHome
+        }
+
+    }
+
+    override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater!!.inflate(R.layout.fragment_home, container, false)
+    }
+}

BottomNavigationView/app/src/main/java/com/anshdeep/bottomnavigationview/FragmentNotification.kt

@@ -0,0 +1,17 @@
+package com.anshdeep.bottomnavigationview
+
+import android.os.Bundle
+import android.support.v4.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+
+/**
+ * Created by ansh on 21/02/18.
+ */
+class FragmentNotification : Fragment() {
+
+    override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater!!.inflate(R.layout.fragment_notification, container, false)
+    }
+}

BottomNavigationView/app/src/main/java/com/anshdeep/bottomnavigationview/MainActivity.kt

@@ -0,0 +1,59 @@
+package com.anshdeep.bottomnavigationview
+
+import android.os.Bundle
+import android.support.design.widget.BottomNavigationView
+import android.support.v4.app.Fragment
+import android.support.v7.app.AppCompatActivity
+import android.widget.FrameLayout
+
+class MainActivity : AppCompatActivity() {
+
+    private var content: FrameLayout? = null
+
+    private val mOnNavigationItemSelectedListener = BottomNavigationView.OnNavigationItemSelectedListener { item ->
+        when (item.itemId) {
+            R.id.navigation_home -> {
+
+                val fragment = FragmentHome.Companion.newInstance()
+                addFragment(fragment)
+
+                return@OnNavigationItemSelectedListener true
+            }
+            R.id.navigation_dashboard -> {
+                val fragment = FragmentDashboard()
+                addFragment(fragment)
+                return@OnNavigationItemSelectedListener true
+            }
+            R.id.navigation_notifications -> {
+                val fragment = FragmentNotification()
+                addFragment(fragment)
+                return@OnNavigationItemSelectedListener true
+            }
+        }
+        false
+    }
+
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        content = findViewById(R.id.content)
+        val navigation = findViewById<BottomNavigationView>(R.id.navigation)
+        navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener)
+
+        val fragment = FragmentHome.Companion.newInstance()
+        addFragment(fragment)
+    }
+
+    /**
+     * add/replace fragment in container [FrameLayout]
+     */
+    private fun addFragment(fragment: Fragment) {
+        supportFragmentManager
+                .beginTransaction()
+                .setCustomAnimations(R.anim.design_bottom_sheet_slide_in, R.anim.design_bottom_sheet_slide_out)
+                .replace(R.id.content, fragment, fragment.javaClass.simpleName)
+                .commit()
+    }
+}

BottomNavigationView/app/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,34 @@
+<vector xmlns:aapt="http://schemas.android.com/aapt"
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="108dp"
+        android:height="108dp"
+        android:viewportHeight="108"
+        android:viewportWidth="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0"/>
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0"/>
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1"/>
+</vector>

BottomNavigationView/app/src/main/res/drawable/ic_dashboard_black_24dp.xml

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+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M3,13h8L11,3L3,3v10zM3,21h8v-6L3,15v6zM13,21h8L21,11h-8v10zM13,3v6h8L21,3h-8z"/>
+</vector>