Lee hyungjun/step.03 #11
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양방향 데이터 바인딩 예제를 실습. layout의 EditText에 text 추가. MainActivity에서 새로운 함수를 추가 -> 기존의 버튼 클릭 리스너가 필요 없어짐 Related to #3
jinsu4755
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Jan 1, 2021
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따봉~ 아마 이정도 했으면 어느정도의 데이터 바인딩 사용법은 사실 실습해보았지만
데이터 바인딩 결합식은 전혀 사용하지 않은 케이스가 될텐데 이 부분은 실습으로 다루자니 너무 시간이 오래거릴듯 해서 공식문서를 읽어보도록 하자! 수고했어~~
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| private lateinit var binding: ActivityMainBinding | ||
| val editText = ObservableField<String>() | ||
| var editText = ObservableField<String>() |
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오우 이 ObservableField는 내부 값이 알아서 변경되는 친구이기 때문에 해당 인스턴스를 var로 변경가능하게 해줄 필요가 없어!
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양방향 데이터 바인딩 예제를 실습.
실습 하면서 고민했던 것은 EditText에서 실시간으로 입력하는 것이 TextView에 바로 입력되는 것도
양방향 데이터 바인딩이라고 생각하여 접근 방식을 어떤식으로 해야 할지 조금 오래걸렸습니다ㅜ