sharedpreferences
Accessing SharedPreferences through static methods
Cristian’s answer is good, but if you want to be able to access your shared preferences from everywhere the right way would be: Create a subclass of Application, e.g. public class MyApp extends Application {… Set the android:name attribute of your <application> tag in the AndroidManifest.xml to point to your new class, e.g. android:name=”MyApp” (so … Read more
Android SharedPreferences , how to save a simple int variable [duplicate]
SharedPreferences sp = getSharedPreferences(“your_prefs”, Activity.MODE_PRIVATE); SharedPreferences.Editor editor = sp.edit(); editor.putInt(“your_int_key”, yourIntValue); editor.commit(); the you can get it as: SharedPreferences sp = getSharedPreferences(“your_prefs”, Activity.MODE_PRIVATE); int myIntValue = sp.getInt(“your_int_key”, -1); The SharedPreference interface gives you access to the an xml file, and a easy way to modify it through its editor. The file is stored in /data/data/com.your.package/shared_prefs/ … Read more
Flutter One time Intro Screen?
If you wish to show the intro screen only for the first time, you will need to save locally that this user has already seen intro. For such thing you may use Shared Preference. There is a flutter package for Shared Preference which you can use EDITED: Please refer to the below complete tested code … Read more
How secure are SQLite and SharedPreferences files on Android?
Is it possible for someone to grab them in any way? That depends on the someone. As Mr. Burov indicates, users of rooted phones can get at whatever they want. Ordinary users and other applications can’t, by default. It’s the not normally accessible part giving me additional grey hair 🙂 By default, files are secure. … Read more
Android SharedPreferences String Set – some items are removed after app restart
Based on your question, you should call commit only after 4 items have been added to the set. In your code, you are calling commit for each feedback which will overwrite the previous feedback. Update: http://developer.android.com/reference/android/content/SharedPreferences.html#getStringSet(java.lang.String, java.util.Set) Note that you must not modify the set instance returned by this call. The consistency of the stored … Read more
Read speed of SharedPreferences
Is there a way to put them in memory for reading? They are in memory, after the first reference. The first time you retrieve a specific SharedPreferences (e.g., PreferenceManager.getDefaultSharedPreferences()), the data is loaded from disk, and kept around.
Is it ok to save a JSON array in SharedPreferences?
The JSON object in Java does not implement serialaizable out of the box. I have seen others extend the class to allow that but for your situation I would simply recommend storing the JSON object as a string and using its toString() function. I have had success with this. editor.putString(“jsondata”, jobj.toString()); And to get it … Read more
How to use Shared Preferences in MVP without Dagger and not causing Presenter to be Context dependent?
Your Presenter should not be Context dependent in the first place. If your presenter needs SharedPreferences you should pass them in the constructor. If your presenter needs a Repository, again, put that in the constructor. I highly suggest watching Google clean code talks since they do a really good job explaining why you should use … Read more