– \uc544\ub798\ub294 \uc800\uc758 pc\uc5d0 \uc124\uce58\ub41c \uc548\ub4dc\ub85c\uc774\ud2b8 \uc2a4\ud29c\ub514\uc624\uc758 \ubaa8\uc2b5\uc785\ub2c8\ub2e4.
Below is a picture of Android Stuido installed on my PC.<\/p>\n\n\n\n
– \uac00\uc6b4\ub370 \ud654\uba74\uc740 \uc571\ub514\uc790\uc778 \ud654\uba74(active_main.xml)\uc774\uace0 \uc6b0\uce21 \uc544\uc774\ucf58\uc788\ub294 \ud654\uba74\uc740 \uc800\uc758 \ubaa8\ubc14\uc77c\ud3f0 \ud654\uba74\uc785\ub2c8\ub2e4.
The middle screen is the app design screen, and the screen with the icon on the right is my mobile phone screen.<\/p>\n\n\n\n
– Name Text\uc5d0 \uc785\ub825\ub41c \uac12\uc744 \ubc84\ud2bc \ub204\ub974\uba74 \uacb0\uacfc(\ube68\uac04\uc0c9 \uae00\uc790) \ubd80\ubd84\uc5d0 \ucd9c\ub825\ud558\ub294 \uc608\uc81c \uc785\ub2c8\ub2e4.
This is an example of printing the value entered in the Name Text in the results (red text) section when you press the button.<\/p>\n\n\n\n
-\uadf8\ub9ac\uace0 \ub2e4\ub978 \ubc84\ud2bc\uc744 \ub204\ub974\uba74 \ud1a0\uc2a4\ud2b8 \uba54\uc138\uc9c0\ub97c \ucd9c\ub825\ud569\ub2c8\ub2e4. -\uc544\ub798\ub294 \ucf54\ud2c0\ub9b0 \ucf54\ub4dc \uc785\ub825\ud558\ub294 MainActivity.kt\ud30c\uc77c \ub0b4\uc6a9 \uc785\ub2c8\ub2e4. -\uc608\uc81c \ud504\ub85c\uadf8\ub7a8 \uc2e4\ud589\ud558\uace0 test1\uc744 \uc785\ub825\ud55c\ub4a4 \ubc84\ud2bc\uc744 \ub204\ub978 \uacb0\uacfc \uc785\ub2c8\ub2e4. -\uc544\ub798\ub294 \ub9e8 \uc704\uc758 \ubc84\ud2bc\uc744 \ub204\ub978 \uacb0\uacfc \uc785\ub2c8\ub2e4.(\ud1a0\uc2a4\ud2b8 \uba54\uc138\uc9c0 \uc2e4\ud589) 2.kotlin-android-extension<\/strong> -\uadf8\ub798\uc11c \uadf8\ub0e5 \ubc84\ud2bc,\uc785\ub825\ubc15\uc2a4,\ud14d\uc2a4\ud2b8\ubdf0\ub97c \uc218\ub3d9\uc73c\ub85c \ubd88\ub7ec \uc624\uae30\ud588\uc2b5\ub2c8\ub2e4. 3.\uc804\uccb4 \ucf54\ub4dc(Full Code)<\/strong><\/p>\n\n\n\n \ucf54\ud2c0\ub9b0\uc740 \uc6d0\ub798 \ubc94\uc6a9 \ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\uc774\uace0 \uc790\ubc14\uc640 \uc644\ubcbd\ud788 \ud638\ud658\ub429\ub2c8\ub2e4.Kotlin is essentially a general-purpose programming language and is fully compatible with Java. \uc81c\uac00 \uc18c\uac1c\ud558\uace0\uc790 \ud558\ub294\uac83\uc740 \uc548\ub4dc\ub85c\uc774\ub4dc \uc571 \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub0b4\uc6a9\uc785\ub2c8\ub2e4.What I want to introduce is about Android app development. \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uac1c\ubc1c\uc740 \uc790\ubc14\ub85c \uac1c\ubc1c\ud588\uc5c8\uc9c0\ub9cc \uc9c0\uae08\uc740 \uad6c\uae00\uc5d0\uc11c \uc8fc\uc694 \uac1c\ubc1c \uc5b8\uc5b4\ub85c \ucf54\ud2c0\ub9b0\uc744 \uad8c\uc7a5\ud569\ub2c8\ub2e4Android apps used to be developed in Java, […]<\/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-778","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\/778","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=778"}],"version-history":[{"count":11,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/778\/revisions"}],"predecessor-version":[{"id":2587,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/778\/revisions\/2587"}],"wp:attachment":[{"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/media?parent=778"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/categories?post=778"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/tags?post=778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
And when you press another button, it outputs a toast message.<\/p>\n\n\n\n![\"\"](\"https:\/\/www.freelifemakers.org\/wordpress\/wp-content\/uploads\/2024\/08\/activity_main.xml_-1024x541.png\")
<\/figure>\n\n\n\n
Below is the contents of the MainActivity.kt file where you enter the Cotlin code.<\/p>\n\n\n\n![\"\"](\"https:\/\/www.freelifemakers.org\/wordpress\/wp-content\/uploads\/2024\/08\/code5-1024x528.png\")
<\/figure>\n\n\n\n
This is the result of executing the example program, entering test1, and pressing the button.<\/p>\n\n\n\n![\"\"](\"https:\/\/www.freelifemakers.org\/wordpress\/wp-content\/uploads\/2024\/08\/test1.png\")
<\/figure>\n\n\n\n
Below is the result of pressing the top button (execute toast message)<\/p>\n\n\n\n![\"\"](\"https:\/\/www.freelifemakers.org\/wordpress\/wp-content\/uploads\/2024\/08\/ToastMessage.png\")
<\/figure>\n\n\n\n
– build.gradle.kt\ud30c\uc77c\uc5d0\uc11c kotlin-android-extension\uc740 \ub354 \uc774\uc0c1 \uc0ac\uc6a9\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.
In the build.grade.kt file, kotlin-android-extension is no longer available.<\/p>\n\n\n\n
So I just manually imported buttons, input box(EditText), and TextView.<\/p>\n\n\n\n \/\/ \ubc84\ud2bc \ubd88\ub7ec\uc624\uae30\n \/\/ Import button\n val button = findViewById<Button>(R.id.button)\n\n \/\/ \ubc84\ud2bc2 \ubd88\ub7ec\uc624\uae30\n\n \/\/ Import button\n val button2 = findViewById<Button>(R.id.button2)\n \n \/\/ EditText \ubd88\ub7ec\uc624\uae30\n \/\/ import EditText\n val input1 = findViewById<EditText>(R.id.input1)\n\n \/\/ TextView \ubd88\ub7ec\uc624\uae30\n \/\/ import TextView\n val output1 = findViewById<TextView>(R.id.output1)<\/code><\/pre>\n\n\n\npackage com.example.app1\n\nimport android.os.Bundle\nimport android.widget.Button\nimport android.widget.EditText\nimport android.widget.TextView\nimport android.widget.Toast\nimport androidx.activity.enableEdgeToEdge\nimport androidx.appcompat.app.AppCompatActivity\nimport androidx.core.view.ViewCompat\nimport androidx.core.view.WindowInsetsCompat\n\n\/\/import com.example.app1.R.id.button2\n\n\nclass MainActivity : AppCompatActivity() {\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n enableEdgeToEdge()\n setContentView(R.layout.activity_main)\n\n \/\/ \ubc84\ud2bc \ubd88\ub7ec\uc624\uae30\n \/\/ Import button\n val button = findViewById<Button>(R.id.button)<\/strong>\n\n \/\/ \ubc84\ud2bc2 \ubd88\ub7ec\uc624\uae30\n\n \/\/ Import button\n val button2 = findViewById<Button>(R.id.button2)<\/strong>\n \n \/\/ EditText \ubd88\ub7ec\uc624\uae30\n \/\/ import EditText\n val input1 = findViewById<EditText>(R.id.input1)<\/strong>\n\n \/\/ TextView \ubd88\ub7ec\uc624\uae30\n \/\/ import TextView\n val output1 = findViewById<TextView>(R.id.output1)<\/strong>\n\n \/\/ toast\uba54\uc138\uc9c0 \ub744\uc6b0\uae30\n \/\/ Running Toast Message\n button.setOnClickListener(){\n Toast.makeText(this@MainActivity,\"show Toast Message\",Toast.LENGTH_SHORT).show()<\/strong>\n }\n \/\/ \uc785\ub825\ub41c \ud14d\uc2a4\ud2b8 \uac12 \uac00\uc838\uc640\uc11c \ucd9c\ub825\ud558\uae30\n \/\/ Get input text values and print them out\n button2.setOnClickListener(){\n val inputText1 = input1.text.toString()\n output1.text = \"\uacb0\uacfc : $inputText1\"\n }\n \/\/toast\ubc14\ub85c \uc0ac\uc6a9\ud558\uae30 \n \/\/Toast.makeText(this@MainActivity, \"Its a toast!\", Toast.LENGTH_SHORT).show()\n\n\n ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { 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}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"