Android - Java 프로젝트에서 Kotlin 사용하기

Android - Java 프로젝트에서 Kotlin 사용하기

1. Java Project 생성

* Language => Java 선택 *

2. Android Studio -> Preferences -> Plugins -> "Kotlin" 검색 -> Install

3. build.gradle(Project) / build.gradle(Module)

- build.gradle(Project)

- build.gradle(Module)

4. Code

- activity_main.xml

- MainActivity

public class MainActivity extends AppCompatActivity implements View.OnClickListener { TextView tvText; Button btn; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); tvText = (TextView) findViewById(R.id.text); btn = (Button) findViewById(R.id.button); btn.setOnClickListener(this); } @Override public void onClick(View view) { if (view.getId() == R.id.button) { tvText.setText(HelloKt.formatMessage("Android with kotlin")); } } }

- Hello.kt

fun formatMessage(name: String): String = "Hello, $name"

5. 실행화면

from http://jenny-daru.tistory.com/67 by ccl(A) rewrite - 2021-09-08 18:01:28