add : extension 분리

app/src/main/java/org/android/go/sopt/util/ContextExtension.kt

@@ -0,0 +1,22 @@
+package org.android.go.sopt.util
+
+import android.content.Context
+import android.view.View
+import android.view.inputmethod.InputMethodManager
+import android.widget.Toast
+import com.google.android.material.snackbar.Snackbar
+
+fun Context.showShortToast(message: String){
+    Toast.makeText(this, message, Toast.LENGTH_SHORT).show()
+}
+
+fun Context.hideKeyboard(view: View){
+    val inputManager = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
+    // hideSoftInputFromWindow는 첫번째 인자로 windowToken을 받아야함. windowToken은 View에서 사용?
+    inputManager.hideSoftInputFromWindow(view.windowToken, 0)
+}
+
+fun Context.showShortSnackbar(view: View, message: String){
+    // Snackbar.make는 첫번째 인자로 View를 받아야한다. 그래서 this(context)를 쓰면 에러남
+    Snackbar.make(view, message, Snackbar.LENGTH_SHORT).show()
+}

app/src/main/java/org/android/go/sopt/util/ViewExtension.kt

@@ -0,0 +1,9 @@
+package org.android.go.sopt.util
+
+import android.view.View
+import com.google.android.material.snackbar.Snackbar
+
+// View 객체를 상속받는 곳에서만 사용 가능~
+//fun View.showShortSnackBar(message: String){
+//    Snackbar.make(this, message, Snackbar.LENGTH_SHORT).show()
+//}