a library that can read can write Android SharedPreference file use a fileName
SharedPreferences.instance().setValue("string", "string-value");
SharedPreferences.instance(sharedName: "shareName")
.setValue("string", "string-value");
SharedPreferences.instance().setValue("string", "string-value");
SharedPreferences.instance().setValue("int", 10);
SharedPreferences.instance().setValue("bool", true);
SharedPreferences.instance().setValue("double", 1.01);
String val1 = await SharedPreferences.instance().getValue("string");
Double val2 = await SharedPreferences.instance().getValue("double");
bool val3 = await SharedPreferences.instance().getValue("bool");
int val4 = await SharedPreferences.instance().getValue("int");