sharedpreferences

问题 Simple problem. I made a settingsActivity and made a sharedPrefernecesLIstener . It worked fine so I left it alone to make the rest of my app. I came back to it to finalize some things and found that it stopped working. I looked through some questions on Stack Overflow and read some things but there are no answers. The Log says: W/InputEventReceiver: Attempted to finish an input event but the input event receiver has already been disposed. Searching for this doesn't give me an answer because

问题 I have a Intro screen for my app,but it shows everytime i open the app, I need to show that for the 1st time only How to do that? //ThIS IS THE SCREEN COMES 1ST WHEN OPENING THE APP (SPLASHSCREEN) class SplashScreen extends StatefulWidget { @override _SplashScreenState createState() => _SplashScreenState(); } class _SplashScreenState extends State<SplashScreen> { @override void initState() { super.initState(); //After 2seconds of time the Introscreen will e opened by bellow code Timer

问题 Good morning everyone, I'm having problems again in my proccess to create my first app. This time with the SharedPreferences file. I have 2 activities that must use the same SharedPreferences file. The first one is the MainActivity and the second one an edit layout for the data. In the MainActivity I have the following method where I use the data to connect to a PLC: //initialize the SharedPreferences variables for the PLC Data and Connection m_DataPLC = getSharedPreferences("CFTPreferences"

问题 For the code below I am trying to retrieve the shared preference, I think it saved correctly but when I go back to the login screen all the data is gone. I need it to remain when I go back to this screen. So i enter name, age and id into three separate lines on the profile page. Then i press the save button Then go to the page before by pressing back on the action bar. And when i go back to the profile page my info should still be there but its not Any help? package com.example.myprofile;

问题 I have the following function in dart to set a particular boolean preference value. _switchPersistentNotifications() { setState(() { isPersistentNotificationEnabled = !isPersistentNotificationEnabled; }); widget.preferences.setBool( "isPersistentNotificationEnabled", isPersistentNotificationEnabled); } This function sets the value of isPersistentNotificationEnabled preference. Now on the native android end, I am supposed to use this shared preference value. Here's what I have done so far.

问题 I have the following function in dart to set a particular boolean preference value. _switchPersistentNotifications() { setState(() { isPersistentNotificationEnabled = !isPersistentNotificationEnabled; }); widget.preferences.setBool( "isPersistentNotificationEnabled", isPersistentNotificationEnabled); } This function sets the value of isPersistentNotificationEnabled preference. Now on the native android end, I am supposed to use this shared preference value. Here's what I have done so far.

问题 I have an application where I need to save a string in a sharedpreferences so that the user has already opened the application once and registered his email he does not have to go through the same screen again and instead go to the home screen directly. My Class PreferencesHelpers public class PreferencesHelpers { private static final String SHARED_PREFS = "sharedPrefs"; private static final String TEXT = "ahhsaushhuuashu"; //I want to save this string public String text; public static void

问题 I'm working now with Android Studio 'Java' and I have question about retrieving value from SharedPreferences. I have stored String value in SharedPreferences in the main activity. and now I need to get the value from my Adapter to use it. I tried many solutions but I get errors. this is how I store the value: public void saveAgentId() { SharedPreferences settings = getSharedPreferences("log11",0); String firstRun = settings.getString("agentId", null); if(firstRun == null)//if running for

问题 I have been trying to get the backup of my sharedpreferences file in my Android app working and so far it is not. I am using the simple Google code from the developer's guide. Below is the code for the MyPrefsBackup class. public class MyPrefsBackup extends BackupAgentHelper { // The name of the SharedPreferences file static final String PREFS = "UserDB"; // A key to uniquely identify the set of backup data static final String PREFS_BACKUP_KEY = "prefs"; // Allocate a helper and add it to the

问题 This is the code I use to save the string representation of the Uri to the SharedPreferences: public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == REQ_CODE_PICK_SOUNDFILE && resultCode == Activity.RESULT_OK){ if ((data != null) && (data.getData() != null)){ SharedPreferences sharedPref = getSharedPreferences("customName", Context.MODE_PRIVATE); SharedPreferences.Editor editor = sharedPref.edit();