Initial commit

.gitattributes

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+# Auto detect text files and perform LF normalization
+* text=auto

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/caches/build_file_checksums.ser
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild

README.md

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+# BottomAppBarBehaviour

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+apply plugin: 'kotlin-android'
+
+apply plugin: 'kotlin-android-extensions'
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "com.example.bottomappbarbehaviour"
+        minSdkVersion 21
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+    lintOptions {
+        disable 'RestrictedApi'
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.2'
+    implementation 'com.google.android.material:material:1.0.0-beta01'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test:runner:1.1.0-alpha3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha3'
+    implementation 'androidx.core:core:1.0.0-beta01'
+}

app/proguard-rules.pro

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+# 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

app/src/androidTest/java/com/example/bottomappbarbehaviour/ExampleInstrumentedTest.kt

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+package com.example.bottomappbarbehaviour
+
+import androidx.test.InstrumentationRegistry
+import androidx.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.example.bottomappbarbehaviour", appContext.packageName)
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.bottomappbarbehaviour">
+
+    <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>

app/src/main/java/com/example/bottomappbarbehaviour/BottomNavigationDrawerFragment.kt

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+package com.example.bottomappbarbehaviour
+
+import android.app.Dialog
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import com.google.android.material.bottomsheet.BottomSheetBehavior
+import com.google.android.material.bottomsheet.BottomSheetDialogFragment
+import kotlinx.android.synthetic.main.fragment_bottom_navigation_drawer.*
+import com.google.android.material.internal.NavigationMenuView
+import com.google.android.material.navigation.NavigationView
+import android.widget.FrameLayout
+import com.google.android.material.bottomsheet.BottomSheetDialog
+
+
+class BottomNavigationDrawerFragment: BottomSheetDialogFragment() {
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater.inflate(R.layout.fragment_bottom_navigation_drawer, container, false)
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        navigation_view.setNavigationItemSelectedListener { menuItem ->
+            // Bottom Navigation Drawer menu item clicks
+            when (menuItem.itemId) {
+//                R.id.nav1 -> context!!.toast(getString(R.string.nav1_clicked))
+            }
+            // Add code here to update the UI based on the item selected
+            // For example, swap UI fragments here
+            true
+        }
+
+        close_imageview.setOnClickListener {
+            this.dismiss()
+        }
+
+        disableNavigationViewScrollbars(navigation_view)
+
+    }
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        val dialog = super.onCreateDialog(savedInstanceState) as BottomSheetDialog
+
+        dialog.setOnShowListener { dialog ->
+            val d = dialog as BottomSheetDialog
+
+            val bottomSheet = d.findViewById<View>(R.id.design_bottom_sheet) as FrameLayout?
+            val bottomSheetBehavior = BottomSheetBehavior.from(bottomSheet!!)
+            bottomSheetBehavior.setBottomSheetCallback(object: BottomSheetBehavior.BottomSheetCallback() {
+                override fun onSlide(bottomSheet: View, slideOffset: Float) {
+                    if (slideOffset > 0.5) {
+                        close_imageview.visibility = View.VISIBLE
+                    } else {
+                        close_imageview.visibility = View.GONE
+                    }
+                }
+
+                override fun onStateChanged(bottomSheet: View, newState: Int) {
+                    when (newState) {
+                        BottomSheetBehavior.STATE_HIDDEN-> dismiss()
+//                        else -> close_imageview.visibility = View.GONE
+                    }
+                }
+            })
+        }
+
+        return dialog
+    }
+
+    private fun disableNavigationViewScrollbars(navigationView: NavigationView?) {
+        val navigationMenuView = navigationView?.getChildAt(0) as NavigationMenuView
+        navigationMenuView.isVerticalScrollBarEnabled = false
+    }
+
+
+}