Multiple Shared Preference not saving/displaying data

Question

I searched for quite some time and to no avail as I still don't know why it's not working.

I am already using SharedPreference between one Activity and another

Code:

Saving Data

  SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
    SharedPreferences.Editor editor = preferences.edit();

    editor.putString("email", email.getEmail().toString());
    editor.apply();

Retrieving Data

    SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
    String userEmail = preferences.getString("email", "defaultValue");

    DisplayEmail.setText(userEmail);

This code is working fine. But now, when moving on to the other shared preference, this happens:

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.nathan.application/com.example.nathan.application.ActCamera}: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2796) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2867) at android.app.ActivityThread.-wrap12(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1570) at android.os.Handler.dispatchMessage(Handler.java:105) at android.os.Looper.loop(Looper.java:156) at android.app.ActivityThread.main(ActivityThread.java:6595) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:942) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:832) Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0

The code due to this error:

 double Latitude = loc.getLatitude();
            double Longitude = loc.getLatitude();

            SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
            SharedPreferences.Editor editor = preferences.edit();


            editor.putString("Country", details.doInBackground().toString());
            editor.putLong("Latitude", Double.doubleToRawLongBits(Latitude));
            editor.putLong("Longitude", Double.doubleToRawLongBits(Longitude));

            editor.apply();


 SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());

    Latitude = Double.longBitsToDouble(preferences.getLong("Latitude", 0));
    Longitude = Double.longBitsToDouble(preferences.getLong("Longitude", 0));

something like this -> https://stackoverflow.com/a/23024962/6142219 — Deepak kaku, May 17 '18 at 17:07

score 0 · Answer 1 · answered May 17 '18 at 17:19

0

There have been instances where getDefaultSharedPreferences does not work as expected across different app contexts.

I would recommend you use:

Context mContext = getApplicationContext();
SharedPreferences preferences = mContext.getSharedPreferences("your_shared_preferences_name", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = preferences.edit();

answered May 17 '18 at 17:19

Terrel Lewis

87
1
7

I still have the same result :/ – user7943 May 17 '18 at 17:32
Are you sure it's a problem with the sharedPreferences and not with fetching the location coordinates? – Terrel Lewis May 17 '18 at 17:36
They are being displayed in a textView beforehand, it has to be with sharedPreferences – user7943 May 17 '18 at 17:53
Were you able to fix this problem @user7943? – Terrel Lewis Jun 11 '18 at 21:17
What was the solution you used? @user7943 – Terrel Lewis Jun 13 '18 at 13:47

score 0 · Answer 2 · answered May 17 '18 at 19:36

Multiple Shared Preference not saving/displaying data

This is called multiprocess app, where you define two or more process in manifest class. There is currently no way of safely accessing SharedPreferences on multiple processes, as described in its documentation.

Solution :

You will use database based library tray instead of SharedPreference if you want work with multiprocess.

https://github.com/grandcentrix/tray

Multiple Shared Preference not saving/displaying data

2 Answers2