How to store a boolean value using SharedPreferences in Android?

Question

I want to save boolean values and then compare them in an if-else block.

My current logic is:

boolean locked = true; if (locked == true) {     /* SETBoolean TO FALSE */ } else {     Intent newActivity4 = new Intent(parent.getContext(), Tag1.class);     startActivity(newActivity4); } 

How do I save the boolean variable which has been set to false?

Answer 1

SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences();  Boolean statusLocked = prefs.edit().putBoolean("locked", true).commit(); 

if you dont care about the return value (status) then you should use .apply() which is faster because its asynchronous.

prefs.edit().putBoolean("locked", true).apply(); 

to get them back use

Boolean yourLocked = prefs.getBoolean("locked", false); 

while false is the default value when it fails or is not set

In your code it would look like this:

boolean locked = true; SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences();  if (locked) {  //maybe you want to check it by getting the sharedpreferences. Use this instead if (locked) // if (prefs.getBoolean("locked", locked) {    prefs.edit().putBoolean("locked", true).commit(); } else {    startActivity(new Intent(parent.getContext(), Tag1.class)); }