Merge "[Catalyst] Handle binding for unavailable screen" into main (155aad00) · Commits · e / os / android_frameworks_base

packages/SettingsLib/Metadata/src/com/android/settingslib/metadata/PreferenceStateProviders.kt

+9 −6

Original line number	Diff line number	Diff line
		@@ -60,14 +60,17 @@ interface PreferenceIconProvider {
		fun getIcon(context: Context): Int
		}

		/** Interface to provide the state of preference availability. */
		interface PreferenceAvailabilityProvider {

		/**
		* Interface to provide the state of preference availability.
		* Returns if the preference is available.
		*
		* UI framework normally does not show the preference widget if it is unavailable.
		* When unavailable (i.e. `false` returned),
		* - UI framework normally does not show the preference widget.
		* - If it is a preference screen, all children may be disabled (depends on UI framework
		* implementation).
		*/
		interface PreferenceAvailabilityProvider {

		/** Returns if the preference is available. */
		fun isAvailable(context: Context): Boolean
		}

+7 −1

Original line number	Diff line number	Diff line
		@@ -97,9 +97,15 @@ interface PreferenceBinding {
		if (!isPreferenceScreen) {
		preference.summary = getPreferenceSummary(context)
		}
		preference.isEnabled = isEnabled(context)
		preference.isVisible =
		(this as? PreferenceAvailabilityProvider)?.isAvailable(context) != false
		// PreferenceScreen.isVisible=false has no effect on UI, while isEnable=false will
		// apply recursively. As a workaround, disable all children when screen is unavailable.
		preference.isEnabled =
		when {
		isPreferenceScreen && !preference.isVisible -> false
		else -> isEnabled(context)
		}
		preference.isPersistent = isPersistent(context)
		// PreferenceScreenBindingHelper will notify dependency change, so we do not need to set
		// dependency here. This simplifies dependency management and avoid the