Weird exception: Cannot cast String to Boolean when using getBoolean

Question

I\'m getting a very weird error. I have 2 activities. On both I\'m getting the SharedPreferences using MODE_PRIVATE (if it matters) by sp = g

Answer 1

The line sp.getBoolean(IntroActivity.SHOW_INTRO, true)// this line returns a String value.

so you have to do as given below,

String flag=sp.getBoolean(IntroActivity.SHOW_INTRO, true);

if(flag.equalsIgnoreCase("true")){
    boolean showIntro = true;   
}else{
    boolean showIntro = false;
}

Try this it will definitely works.