![\"\"](\"https:\/\/www.freelifemakers.org\/wordpress\/wp-content\/uploads\/2024\/11\/directory.png\")
<\/figure>\n\n\n\n2.MainActivity.kt<\/strong><\/p>\n\n\n\n 3.activity_main.xml<\/strong><\/p>\n\n\n\n -xml design<\/p>\n\n\n\n -xml code<\/p>\n\n\n\n \ub354 \uce5c\uc808\ud55c \ucf54\ud2c0\ub9b0 \uc571\ud504\ub85c\uadf8\ub798\ubc0d \ucc45\uc5d0 \uc788\ub294 \ucf54\ub4dc \uc785\ub2c8\ub2e4.This is code from the Friendlier Kotlin App Programming book \uc774 \ucf54\ub4dc\ub294 \ubdf0\ubc14\uc778\ub529\uc744 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uc558\uc2b5\ub2c8\ub2e4.This code does not use view binding. Test : compileSdk = 35 targetSdk = 35 1.Directory & Files 2.MainActivity.kt 3.activity_main.xml -xml design -xml code<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,1],"tags":[],"class_list":["post-1059","post","type-post","status-publish","format-standard","hentry","category-kotlin","category-uncategorized","missing-thumbnail"],"_links":{"self":[{"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/1059","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/comments?post=1059"}],"version-history":[{"count":5,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/1059\/revisions"}],"predecessor-version":[{"id":1086,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/1059\/revisions\/1086"}],"wp:attachment":[{"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/media?parent=1059"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/categories?post=1059"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/tags?post=1059"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}package com.example.drawerex\n\nimport android.os.Bundle\nimport android.widget.Toast\nimport androidx.activity.OnBackPressedCallback\nimport androidx.activity.enableEdgeToEdge\nimport androidx.appcompat.app.ActionBarDrawerToggle\nimport androidx.appcompat.app.AppCompatActivity\nimport androidx.appcompat.widget.Toolbar\nimport androidx.core.view.GravityCompat\nimport androidx.core.view.ViewCompat\nimport androidx.core.view.WindowInsetsCompat\nimport androidx.drawerlayout.widget.DrawerLayout\nimport androidx.fragment.app.Fragment\nimport com.google.android.material.navigation.NavigationView\n\nclass MainActivity : AppCompatActivity() {\n\n enum class FragmentItem{\n ITEM1,ITEM2,ITEM3\n }\n\n lateinit var fragment:Fragment\n lateinit var toolbar:Toolbar\n lateinit var drawerLayout:DrawerLayout\n lateinit var navigationView: NavigationView\n\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n enableEdgeToEdge()\n setContentView(R.layout.activity_main)\n ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.drawerLayout)) { v, insets ->\n val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())\n v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)\n insets\n }\n\n\n onBackPressedDispatcher.addCallback(this, onBackPressedCallback)\n\n toolbar = findViewById(R.id.toolbar)\n drawerLayout = findViewById(R.id.drawerLayout)\n navigationView = findViewById(R.id.navigationView)\n\n \/\/toolbar excute\n toolbar.title=\"\uccab\ubc88\uc9f8 \ud654\uba74First Screen\"\n setSupportActionBar(toolbar)\n\n \/\/DrawerLayout excute\n val toggle = ActionBarDrawerToggle(this,drawerLayout,toolbar,R.string.drawer_open,R.string.drawer_close)\n drawerLayout.addDrawerListener(toggle)\n toggle.syncState()\n\n \/\/ Fragment1 excute\n fragment = Fragment1()\n supportFragmentManager.beginTransaction().replace(R.id.container,fragment).commit()\n\n navigationView.setNavigationItemSelectedListener {\n when(it.itemId){\n R.id.item1 -> {\n showToast(\"\uccab\ubc88\uc9f8 \uc120\ud0dd\ub428First Screen Selected\")\n onFragmentSelected(FragmentItem.ITEM1,null)\n }\n R.id.item2 -> {\n showToast(\"\ub450\ubc88\uc9f8 \uc120\ud0dd\ub428Second Screen Selected\")\n onFragmentSelected(FragmentItem.ITEM2,null)\n }\n R.id.item3 -> {\n showToast(\"\uc138\ubc88\uc9f8 \uc120\ud0dd\ub428Third Screen Selected\")\n onFragmentSelected(FragmentItem.ITEM3,null)\n }\n }\n drawerLayout.closeDrawer(GravityCompat.START)\n return@setNavigationItemSelectedListener true\n }\n }\n\n\n\n\/*\n \/\/ deprecated\n override fun onBackPressed() {\n if(layoutDrawer.isDrawerOpen(GravityCompat.START)) {\n layoutDrawer.closeDrawers()\n }\n else {\n super.onBackPressed()\n }\n*\/\n\n fun onFragmentSelected(item:FragmentItem,bundle: Bundle?){\n var fragment:Fragment\n\n when(item){\n FragmentItem.ITEM1 ->{\n toolbar.title=\"\uccab \ubc88\uc9f8 \ud654\uba74First Screen\"\n fragment = Fragment1()\n }\n FragmentItem.ITEM2 ->{\n toolbar.title=\"\ub450 \ubc88\uca30 \ud654\uba74Second Screen\"\n fragment = Fragment2()\n }\n FragmentItem.ITEM3 ->{\n toolbar.title=\"\uc138 \ubc88\uca30 \ud654\uba74Third Screen\"\n fragment = Fragment3()\n }\n }\n supportFragmentManager.beginTransaction().replace(R.id.container,fragment).commit()\n }\n\n private val onBackPressedCallback = object : OnBackPressedCallback(true) {\n override fun handleOnBackPressed() {\n if(drawerLayout.isDrawerOpen(GravityCompat.START)){\n drawerLayout.closeDrawers()\n }\n else {\n finish()\n }\n }\n }\n\n fun showToast(message:String?){\n Toast.makeText(this,message,Toast.LENGTH_LONG).show()\n }\n\n}<\/code><\/pre>\n\n\n\n![\"\"](\"https:\/\/www.freelifemakers.org\/wordpress\/wp-content\/uploads\/2024\/11\/active_main_xml-1.png\")
<\/figure>\n\n\n\n<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<androidx.drawerlayout.widget.DrawerLayout xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\n xmlns:app=\"http:\/\/schemas.android.com\/apk\/res-auto\"\n xmlns:tools=\"http:\/\/schemas.android.com\/tools\"\n\n android:id=\"@+id\/drawerLayout\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n android:fitsSystemWindows=\"true\"\n tools:openDrawer=\"start\">\n <androidx.coordinatorlayout.widget.CoordinatorLayout\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\">\n\n <com.google.android.material.appbar.AppBarLayout\n android:id=\"@+id\/appBarLayout\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"wrap_content\">\n\n <androidx.appcompat.widget.Toolbar\n android:id=\"@+id\/toolbar\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n android:layout_marginTop=\"30dp\"\n android:background=\"?attr\/colorPrimary\"\n app:popupTheme=\"@style\/AppTheme.PopupOverlay\" \/>\n\n <\/com.google.android.material.appbar.AppBarLayout>\n\n <FrameLayout\n android:id=\"@+id\/container\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n app:layout_behavior=\"@string\/appbar_scrolling_view_behavior\"><\/FrameLayout>\n\n <\/androidx.coordinatorlayout.widget.CoordinatorLayout>\n\n <com.google.android.material.navigation.NavigationView\n android:id=\"@+id\/navigationView\"\n android:layout_width=\"wrap_content\"\n android:layout_height=\"match_parent\"\n android:layout_gravity=\"start\"\n android:fitsSystemWindows=\"true\"\n app:headerLayout=\"@layout\/nav_header\"\n app:menu=\"@menu\/nav_menu\" \/>\n<\/androidx.drawerlayout.widget.DrawerLayout><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"