#124 fix bug of not opening the keyboard in search (see also #124)

app/src/main/kotlin/ir/thatsmejavad/backgroundable/common/ui/ClearFocusOnKeyboardDismissModifier.kt

@@ -0,0 +1,66 @@
+package ir.thatsmejavad.backgroundable.common.ui
+
+import android.graphics.Rect
+import android.view.View
+import android.view.ViewTreeObserver
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.State
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.produceState
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.composed
+import androidx.compose.ui.focus.onFocusEvent
+import androidx.compose.ui.platform.LocalFocusManager
+import androidx.compose.ui.platform.LocalView
+
+@Composable
+fun Modifier.clearFocusOnKeyboardDismiss(): Modifier = composed {
+    var isFocused by remember { mutableStateOf(false) }
+    var keyboardAppearedSinceLastFocused by remember { mutableStateOf(false) }
+
+    if (isFocused) {
+        val isKeyboardOpen by rememberIsKeyboardOpen()
+
+        val focusManager = LocalFocusManager.current
+        LaunchedEffect(isKeyboardOpen) {
+            if (isKeyboardOpen) {
+                keyboardAppearedSinceLastFocused = true
+            } else if (keyboardAppearedSinceLastFocused) {
+                focusManager.clearFocus()
+            }
+        }
+    }
+    onFocusEvent {
+        if (isFocused != it.isFocused) {
+            isFocused = it.isFocused
+            if (isFocused) {
+                keyboardAppearedSinceLastFocused = false
+            }
+        }
+    }
+}
+
+@Composable
+fun rememberIsKeyboardOpen(): State<Boolean> {
+    val view = LocalView.current
+
+    return produceState(initialValue = view.isKeyboardOpen()) {
+        val viewTreeObserver = view.viewTreeObserver
+        val listener = ViewTreeObserver.OnGlobalLayoutListener { value = view.isKeyboardOpen() }
+        viewTreeObserver.addOnGlobalLayoutListener(listener)
+
+        awaitDispose { viewTreeObserver.removeOnGlobalLayoutListener(listener) }
+    }
+}
+
+fun View.isKeyboardOpen(): Boolean {
+    val rect = Rect()
+    getWindowVisibleDisplayFrame(rect)
+    val screenHeight = rootView.height
+    val keypadHeight = screenHeight - rect.bottom
+    return keypadHeight > screenHeight * 0.15
+}

app/src/main/kotlin/ir/thatsmejavad/backgroundable/screens/search/SearchScreen.kt

@@ -74,6 +74,7 @@ import ir.thatsmejavad.backgroundable.R
 import ir.thatsmejavad.backgroundable.common.ui.BackgroundableScaffold
 import ir.thatsmejavad.backgroundable.common.ui.MediaCard
 import ir.thatsmejavad.backgroundable.common.ui.ObserveSnackbars
+import ir.thatsmejavad.backgroundable.common.ui.clearFocusOnKeyboardDismiss
 import ir.thatsmejavad.backgroundable.core.AppScreens
 import ir.thatsmejavad.backgroundable.core.Constants.NAVIGATION_BAR_HEIGHT
 import ir.thatsmejavad.backgroundable.core.getErrorMessage
@@ -160,6 +161,7 @@ private fun SearchScreen(
                     .statusBarsPadding()
                     .padding(horizontal = padding)
                     .fillMaxWidth()
+                    .clearFocusOnKeyboardDismiss()
                     .onFocusChanged {
                         isFocused = it.isFocused
                     }