How to save a checkbox state in android app

Question

I have this app with a simple checkbox which adds a line to build.prop when the user presses it , the thing works but when i exit the app the check box is reseted , is there

Answer 1

Yes, you can Just save the value of checkBox state in SharedPreferences and then retrieve them later when required

SharedPreferences sp = getSharedPreferences("your_prefs", Activity.MODE_PRIVATE);
SharedPreferences.Editor editor = sp.edit();
editor.putString("state", "checked");
editor.commit();

later you can get it like

SharedPreferences sp = getSharedPreferences("your_prefs", Activity.MODE_PRIVATE);
 String str = sp.getString("state");

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.See How to use SharedPreferences in Android to store, fetch and edit values

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You can use putBoolean() and getBoolean() methods of Sharedpreferences too as checkboxes have only two states