SettingsProvider之Secure

最新推荐文章于 2024-07-02 16:58:27 发布

原创最新推荐文章于 2024-07-02 16:58:27 发布 · 4k 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#SettingsProvider #Settings.Secure

Android 同时被 2 个专栏收录

174 篇文章

订阅专栏

SettingsProvider

12 篇文章

订阅专栏

本文介绍了Android系统中设置项从Settings.Secure迁移到Settings.Global及LockSettings的过程，并展示了如何通过代码检查这些设置项的新位置。

转载请注明出处：http://blog.youkuaiyun.com/droyon/article/details/35559027

1、字段转移

MOVED_TO_LOCK_SETTINGS = new HashSet<String>(3);
MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_ENABLED);
MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_VISIBLE);

MOVED_TO_GLOBAL = new HashSet<String>();
            MOVED_TO_GLOBAL.add(Settings.Global.ADB_ENABLED);
            MOVED_TO_GLOBAL.add(Settings.Global.ASSISTED_GPS_ENABLED);
            MOVED_TO_GLOBAL.add(Settings.Global.BLUETOOTH_ON);

/** @hide */
        public static String getStringForUser(ContentResolver resolver, String name,
                int userHandle) {
            if (MOVED_TO_GLOBAL.contains(name)) {
                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
                        + " to android.provider.Settings.Global.");
                return Global.getStringForUser(resolver, name, userHandle);
            }

            if (MOVED_TO_LOCK_SETTINGS.contains(name)) {//已经移植到LockSettings中的字段
                synchronized (Secure.class) {
                    if (sLockSettings == null) {
                        sLockSettings = ILockSettings.Stub.asInterface(
                                (IBinder) ServiceManager.getService("lock_settings"));
                        sIsSystemProcess = Process.myUid() == Process.SYSTEM_UID;
                    }
                }
                if (sLockSettings != null && !sIsSystemProcess) {
                    try {
                        return sLockSettings.getString(name, "0", userHandle);
                    } catch (RemoteException re) {
                        // Fall through
                    }
                }
            }

            return sNameValueCache.getStringForUser(resolver, name, userHandle);
        }