![](/img/trans.png)
[英]How to save another value instead of newValue in OnPreferenceChange?
[英]How to save newValue on OnPreferenceChangeListener with Kotlin?
我知道 newValue 在OnPreferenceChangeListener
true 之前尚未保存。
我希望手動保存它,我該怎么做? 謝謝!
fun setPreference(){
val chAutoRestore = preferenceManager.findPreference(getString(R.string.IsAutoRestore)) as CheckBoxPreference
chAutoRestore.onPreferenceChangeListener = Preference.OnPreferenceChangeListener { preference, newValue ->
logError( "Pref " + preference.key + " changed to " + newValue.toString())
//Save newValue
startOrStopScheduleRestore(mContext)
true
}
}
它將以 xml 格式自動存儲在共享首選項中:
<EditTextPreference
android:defaultValue="@string/default_value"
android:key="YOUR_KEY"
android:title="@string/title"/>
要獲取值,請使用:
getSharedPreferences(this).getBoolean("YOUR_KEY", false)
這段代碼對我有用
val notificationPreference: SwitchPreferenceCompat? = findPreference("notifications")
notificationPreference!!.onPreferenceChangeListener =
Preference.OnPreferenceChangeListener { preference, newValue ->
// Manually save to Prefs
Utilities().putPrefBoolean(preference.key, newValue as Boolean)
// Reflect the newValue to Preference?
true
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.