diff options
Diffstat (limited to 'core/src/main/kotlin/ca/allanwang/kau/kpref/KPref.kt')
| -rw-r--r-- | core/src/main/kotlin/ca/allanwang/kau/kpref/KPref.kt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/core/src/main/kotlin/ca/allanwang/kau/kpref/KPref.kt b/core/src/main/kotlin/ca/allanwang/kau/kpref/KPref.kt index fa6c5a9..c1ce282 100644 --- a/core/src/main/kotlin/ca/allanwang/kau/kpref/KPref.kt +++ b/core/src/main/kotlin/ca/allanwang/kau/kpref/KPref.kt @@ -6,6 +6,19 @@ import ca.allanwang.kau.kotlin.ILazyResettable /** * Created by Allan Wang on 2017-06-07. + * + * Base class for shared preferences + * All objects extending this class must be called in + * the app's [android.app.Application] class + * + * See the [KPref.kpref] extensions for more details + * + * Furthermore, all kprefs are held in the [prefMap], + * so if you wish to reset a preference, you must also invalidate the kpref + * from that map + * + * You may optionally override [deleteKeys]. This will be called on initialization + * And delete all keys returned from that method */ open class KPref { @@ -18,6 +31,12 @@ open class KPref { initialized = true this.c = c.applicationContext PREFERENCE_NAME = preferenceName + val toDelete = deleteKeys() + if (toDelete.isNotEmpty()) { + val edit = sp.edit() + toDelete.forEach { edit.remove(it) } + edit.apply() + } } internal val sp: SharedPreferences by lazy { @@ -33,4 +52,6 @@ open class KPref { operator fun get(key: String): ILazyResettable<*>? = prefMap[key] + open fun deleteKeys(): Array<String> = arrayOf() + }
\ No newline at end of file |