I want to display term of service in my app only once when app launched without using shared preference because If user clear app data it will display again.
What you want to achieve can only be achieved with flags.
Shared preference -
Which you don't want to use it's okay.
Use any other database like firebase
You don't need to add email login etc firebase create ID for every new user so now store your flag inside this.
Simple.
So it wil not deleted too.
But user should logged in with e-mail if want to get retrieved the data.
Related
I am new to this site so I am sorry if there are any inaccuracies in this question. I am trying to create a login system using a local database. Previously I did some research on how to make a login system but still have no luck. I am using something like intent.putExtras() (sorry, not sure what the correct word for that is) to store user's details such as username, date of birth etc, so the following activity can receive the data from the previous activity. However, I just figured out that SharedPreferences is used by many people to implement a login system and I am planning on using it as I have an impression that it is more reliable (correct me if I am wrong). However, I have been implementing a login system using intent.putExtras() and never seen anyone implementing a login system that way. To make sure my current way of implementation is reliable, my question is, can I use intent.putExtras() instead of using SharedPreferences?
intent.putExtras(//something) only stores data in Bundle temporarily. You need to store the user info (or if user has logged in) somewhere, to be accessed next time you open the application.
intent.putExtras() are intended to be used, for example, when you want to pass data from one Activity to another.
Locally, sqlite and shared preferences are your only options.
My question is, can I use "intent.putExtras(//something)" instead of using SharedPreferences?
With what you want to achieve, no you can't.
After you edited your question:
If you only want to pass data then you can do so with intent.putExtras(), if you want to store data locally, then you will have to use sqlite or shared preferences.
I'm developing an Application using Firebase analytics, authentication and DB services.
I need to save some preferences and some settings, related to the user.
Most of them are managed in a "SettingsActivity" which is similar to the sample one provided by Android Studio, but with this configuration if the user changes the device, those preferences are lost.
The app should provide a customizable experience for each user. To achieve this I'd like my preferences to be saved on Firebase insted of in local Preferences.
How can I achieve this without have to change too much my app structure?
EDIT:
Here's an example:
The user download my App on first device (Dev-A), he sign up, then he goes to settings and set first setting from A to B, and second setting from A to D.
Then he decide to download my App on a second device (Dev-B), he log in, then he goes to settings.
On Dev-A, first setting is set to B and second setting is set to D.
On Dev-B, first setting is set to A and second setting is set to A.
You will need to store this information in Firebase Database.
Use the user'd UID you get from Firebase Auth in the Database to store the settings.
The data should be under '/users/{uid}'
This way, you will persist all user specific data across devices. (Since the same UID will be presented to same authentication account)
Check this link in Firebase documentation to set the database security
You should try this library:
A implementation of SharedPreferences which syncs with Firebase database to keep your SharedPreferences in sync between multiple devices of one user and/or to back them up for app re-installs!
Simple question but something I haven't been able to wrap my head around.
Can I run a query in such a way that I can tell if this is the user's first time using the app, using information from Parse.com's InstallationQuery method?
Don't know about parse, but you can do this with shared preference in android
Shared preference will not be created a variable first time and set it to true during first load of app, and for subsequent load it can be set to false.
http://developer.android.com/training/basics/data-storage/shared-preferences.html
Next time when you uninstall the app, shared preference are automatically deleted.
I understand how to create a one time activity that saves to preferences to make the activity appear only once. But can someone show me how to save the "first open" screen to sqlite. I want to prevent users from clearing the data and seeing the screen again.
to clarify
I am looking at a password login tutorial and i want the users to register a password with the app but once the password is set, I want the registration screen removed for security purposes. Can someone please help.
Thanks
Using SQLite as your storage is not going to help.
Android will store your database under /data/data/your.package.name/databases/yourfilename and thus, when a user clears the data for an app, it will remove any databases, along with shared preferences too.
I want to be able to prompt the users to enter the details required for the app only when it starts up for the first time (not other times). These details will be held in a database on the phone.
Would it be better to check the database each time or put these details in a shared preference? Furthermore, is this type of activity even possible on Android?
Depends on the details really. If it is a large amount of information you might consider using a Database. For just basic identification information, SharedPreferences should be fine.
If you do use a Database, you might consider loading them into your Application object. This would depend on how frequently you use this information in your app.
To check for the first start of the app, a SharedPreference is generally used AFAIK.
Use SharedPreferences or Database depending on the data complexity and its need later on..
Store a Flag in SharedPreferences and set this when user enters the data.
Check that shared preferences flag while on your first activity and redirects accordingly(to Details/one time page) if required.
here even if a user manually deletes data using Settings > Manage app > your app > clear data, Your app will know to get the details then from user....