Android 系统（247）---Android Go项目， Launcher no Notification Dots

Android Go项目，Launcher默认关闭此feature。如果需要此feature，请按照如下修改

1. /vendor/mediatek/proprietary/packages/apps/Launcher3/go/res/values-v26/bools.xml：

<bool name="notification_badging_enabled">true</bool>

2. /vendor/mediatek/proprietary/packages/apps/Launcher3/src/com/android/launcher3/SettingsActivity.java 

73 public void onCreate(Bundle savedInstanceState) {
74 super.onCreate(savedInstanceState);
75 getPreferenceManager().setSharedPreferencesName(LauncherFiles.SHARED_PREFERENCES_KEY);
76 addPreferencesFromResource(R.xml.launcher_preferences);
77
78 ContentResolver resolver = getActivity().getContentResolver();
79
80 // Setup allow rotation preference
81 Preference rotationPref = findPreference(Utilities.ALLOW_ROTATION_PREFERENCE_KEY);
82 if (getResources().getBoolean(R.bool.allow_rotation)) {
83 // Launcher supports rotation by default. No need to show this setting.
84 getPreferenceScreen().removePreference(rotationPref);
85 } else {
86 mRotationLockObserver = new SystemDisplayRotationLockObserver(rotationPref, resolver);
87
88 // Register a content observer to listen for system setting changes while
89 // this UI is active.
90 mRotationLockObserver.register(Settings.System.ACCELEROMETER_ROTATION);
91
92 // Initialize the UI once
93 rotationPref.setDefaultValue(Utilities.getAllowRotationDefaultValue(getActivity()));
94 }
95
96 ButtonPreference iconBadgingPref =
97 (ButtonPreference) findPreference(ICON_BADGING_PREFERENCE_KEY);
98 if (!Utilities.ATLEAST_OREO) {
99 getPreferenceScreen().removePreference(
100 findPreference(SessionCommitReceiver.ADD_ICON_PREFERENCE_KEY));
101 getPreferenceScreen().removePreference(iconBadgingPref);
102 } else if (!getResources().getBoolean(R.bool.notification_badging_enabled)) {//mtk modify
105 getPreferenceScreen().removePreference(iconBadgingPref);
106 } else {
107 // Listen to system notification badge settings while this UI is active.
108 mIconBadgingObserver = new IconBadgingObserver(
109 iconBadgingPref, resolver, getFragmentManager());
110 mIconBadgingObserver.register(NOTIFICATION_BADGING, NOTIFICATION_ENABLED_LISTENERS);
111 }
112
113 Preference iconShapeOverride = findPreference(IconShapeOverride.KEY_PREFERENCE);
114 if (iconShapeOverride != null) {
115 if (IconShapeOverride.isSupported(getActivity())) {
116 IconShapeOverride.handlePreferenceUi((ListPreference) iconShapeOverride);
117 } else {
118 getPreferenceScreen().removePreference(iconShapeOverride);
119 }
120 }
121 }

3. /vendor/mediatek/proprietary/packages/apps/MtkSettings/src/com/android/settings/notification/ZenAccessSettings.java

93 public void onResume() {
94 super.onResume();
95 if (true) {//mtk modify
96 reloadList();
97 getContentResolver().registerContentObserver(
98 Secure.getUriFor(Secure.ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES), false,
99 mObserver);
100 getContentResolver().registerContentObserver(
101 Secure.getUriFor(Secure.ENABLED_NOTIFICATION_LISTENERS), false,
102 mObserver);
103 } else {
104 setEmptyText(R.string.disabled_low_ram_device);
105 }
106 }
107
108 @Override
109 public void onPause() {
110 super.onPause();
111 if (true) {//mtk modify
112 getContentResolver().unregisterContentObserver(mObserver);
113 }
114 }

4. /vendor/mediatek/proprietary/packages/apps/MtkSettings/src/com/android/settings/utils/ManagedServiceSettings.java

96 public void onResume() {
97 super.onResume();
98 if (true) {//mtk modify
99 mServiceListing.reload();
100 mServiceListing.setListening(true);
101 } else {
102 setEmptyText(R.string.disabled_low_ram_device);
103 }
104 }

5./frameworks/base/services/core/java/com/android/server/notification/NotificationManagerService.java

2882 public void setNotificationListenerAccessGrantedForUser(ComponentName listener, int userId,
2883 boolean granted) throws RemoteException {
2884 Preconditions.checkNotNull(listener);
2885 checkCallerIsSystemOrShell();
2886 final long identity = Binder.clearCallingIdentity();
2887 try {
2888 if (true) {//mtk modify
2889 mConditionProviders.setPackageOrComponentEnabled(listener.flattenToString(),
2890 userId, false, granted);
2891 mListeners.setPackageOrComponentEnabled(listener.flattenToString(),
2892 userId, true, granted);
2893
2894 getContext().sendBroadcastAsUser(new Intent(
2895 NotificationManager.ACTION_NOTIFICATION_POLICY_ACCESS_GRANTED_CHANGED)
2896 .setPackage(listener.getPackageName())
2897 .addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY),
2898 UserHandle.of(userId), null);
2899
2900 savePolicyFile();
2901 }
2902 } finally {
2903 Binder.restoreCallingIdentity(identity);
2904 }
2905 }