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Change zen mode schedules page rule handling

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The approach of reloading all rules (and recreating all ZenRulePreferences) every time the rule set changed causes the switches on the page to stop working.

This change keeps the ZenRulePreference around as long as the rule itself is around and keeps it updated, while re-adding the preferences to the PreferenceCategory if needed due to rules changing.

Fixes: 229879326
Test: manual, ZenModeAutomaticRulesPreferenceControllerTest
Change-Id: I4eba41e8252cedd87ac866e4b97513970ca2d94a
This commit is contained in:
Yuri Lin
2022-05-05 12:27:54 -04:00
parent dc44eb1feb
commit 7cbba753dc
2 changed files with 116 additions and 29 deletions
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81
src/com/android/settings/notification/zen/ZenModeAutomaticRulesPreferenceController.java
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@@ -18,6 +18,7 @@ package com.android.settings.notification.zen;
import android.app.AutomaticZenRule;
import android.content.Context;
import android.util.ArrayMap;
import androidx.annotation.VisibleForTesting;
import androidx.fragment.app.Fragment;
@@ -28,7 +29,6 @@ import androidx.preference.PreferenceScreen;
import com.android.settingslib.core.lifecycle.Lifecycle;
import java.util.Map;
import java.util.Objects;
public class ZenModeAutomaticRulesPreferenceController extends
AbstractZenModeAutomaticRulePreferenceController {
@@ -38,6 +38,10 @@ public class ZenModeAutomaticRulesPreferenceController extends
@VisibleForTesting
protected PreferenceCategory mPreferenceCategory;
// Map of rule key -> preference so that we can update each preference as needed
@VisibleForTesting
protected Map<String, ZenRulePreference> mZenRulePreferences = new ArrayMap<>();
public ZenModeAutomaticRulesPreferenceController(Context context, Fragment parent, Lifecycle
lifecycle) {
super(context, KEY, parent, lifecycle);
@@ -58,38 +62,73 @@ public class ZenModeAutomaticRulesPreferenceController extends
super.displayPreference(screen);
mPreferenceCategory = screen.findPreference(getPreferenceKey());
mPreferenceCategory.setPersistent(false);
// if mPreferenceCategory was un-set, make sure to clear out mZenRulePreferences too, just
// in case
if (mPreferenceCategory.getPreferenceCount() == 0) {
mZenRulePreferences.clear();
}
}
@Override
public void updateState(Preference preference) {
super.updateState(preference);
Map.Entry<String, AutomaticZenRule>[] sortedRules = getRules();
final int currNumPreferences = mPreferenceCategory.getPreferenceCount();
if (currNumPreferences == sortedRules.length) {
// refresh the whole preference category list if the total number of rules has changed, or
// if any individual rules have changed, so we can rebuild the list & keep things in sync
boolean refreshPrefs = false;
if (mPreferenceCategory.getPreferenceCount() != sortedRules.length) {
refreshPrefs = true;
} else {
// check whether any rules in sortedRules are not in mZenRulePreferences; that should
// be enough to see whether something has changed
for (int i = 0; i < sortedRules.length; i++) {
ZenRulePreference pref = (ZenRulePreference) mPreferenceCategory.getPreference(i);
// we are either:
// 1. updating everything about the rule
// 2. rule was added or deleted, so reload the entire list
if (Objects.equals(pref.mId, sortedRules[i].getKey())) {
AutomaticZenRule rule = sortedRules[i].getValue();
pref.updatePreference(rule);
} else {
reloadAllRules(sortedRules);
if (!mZenRulePreferences.containsKey(sortedRules[i].getKey())) {
refreshPrefs = true;
break;
}
}
} else {
reloadAllRules(sortedRules);
}
}
@VisibleForTesting
void reloadAllRules(Map.Entry<String, AutomaticZenRule>[] rules) {
mPreferenceCategory.removeAll();
for (Map.Entry<String, AutomaticZenRule> rule : rules) {
ZenRulePreference pref = createZenRulePreference(rule);
mPreferenceCategory.addPreference(pref);
// if we need to refresh the whole list, clear the preference category and also start a
// new map of preferences according to the preference category contents
// we need to not update the existing one yet, as we'll need to know what preferences
// previously existed in order to update and re-attach them to the preference category
Map<String, ZenRulePreference> newPrefs = new ArrayMap<>();
if (refreshPrefs) {
mPreferenceCategory.removeAll();
}
// Loop through each rule, either updating the existing rule or creating the rule's
// preference if needed (and, in the case where we need to rebuild the preference category
// list, do so as well)
for (int i = 0; i < sortedRules.length; i++) {
String key = sortedRules[i].getKey();
if (mZenRulePreferences.containsKey(key)) {
// existing rule; update its info if it's changed since the last display
AutomaticZenRule rule = sortedRules[i].getValue();
ZenRulePreference pref = mZenRulePreferences.get(key);
pref.updatePreference(rule);
// only add to preference category if the overall set of rules has changed so this
// needs to be rearranged
if (refreshPrefs) {
mPreferenceCategory.addPreference(pref);
newPrefs.put(key, pref);
}
} else {
// new rule; create a new ZenRulePreference & add it to the preference category
// and the map so we'll know about it later
ZenRulePreference pref = createZenRulePreference(sortedRules[i]);
mPreferenceCategory.addPreference(pref);
newPrefs.put(key, pref);
}
}
// If anything was new, then make sure we overwrite mZenRulePreferences with our new data
if (refreshPrefs) {
mZenRulePreferences = newPrefs;
}
}