Show a ProgressDialog during Clear cache action.

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/developer/DeveloperSettingsState.kt

@@ -26,7 +26,9 @@ data class DeveloperSettingsState(
     val isEnterpriseBuild: Boolean,
     val showColorPicker: Boolean,
     val eventSink: (DeveloperSettingsEvents) -> Unit
-)
+) {
+    val showLoader = clearCacheAction is AsyncAction.Loading
+}
 
 data class CustomElementCallBaseUrlState(
     val baseUrl: String?,

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/developer/DeveloperSettingsView.kt

@@ -7,6 +7,7 @@
 
 package io.element.android.features.preferences.impl.developer
 
+import androidx.activity.compose.BackHandler
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.progressSemantics
@@ -22,6 +23,7 @@ import io.element.android.compound.theme.ElementTheme
 import io.element.android.features.preferences.impl.R
 import io.element.android.features.preferences.impl.developer.tracing.LogLevelItem
 import io.element.android.features.rageshake.api.preferences.RageshakePreferencesView
+import io.element.android.libraries.designsystem.components.ProgressDialog
 import io.element.android.libraries.designsystem.components.list.ListItemContent
 import io.element.android.libraries.designsystem.components.preferences.PreferenceCategory
 import io.element.android.libraries.designsystem.components.preferences.PreferenceDropdown
@@ -50,9 +52,20 @@ fun DeveloperSettingsView(
     onBackClick: () -> Unit,
     modifier: Modifier = Modifier,
 ) {
+    if (state.showLoader) {
+        ProgressDialog()
+    }
+    BackHandler(
+        enabled = !state.showLoader,
+        onBack = onBackClick,
+    )
     PreferencePage(
         modifier = modifier,
-        onBackClick = onBackClick,
+        onBackClick = {
+            if (!state.showLoader) {
+                onBackClick()
+            }
+        },
         title = stringResource(id = CommonStrings.common_developer_options)
     ) {
         // Note: this is OK to hardcode strings in this debug screen.