One of iOS data stores--nsuserdefaults (preferences)

1 Storing data in Nsuserdefaults (preferences)

Get Nsuserdefaults Object

Nsuserdefaults *defaults = [Nsuserdefaults standarduserdefaults];

Save data (if no synchronization occurs after setting up the data, the data is automatically saved to the Preferences folder at a later point in time)

[Defaults setobject:@ "Lnj" forkey:@ "name"];

[Defaults setobject:@ "Man" forkey:@ "gender"];

[Defaults setinteger:13 forkey:@ "age"];

[Defaults setdouble:10.1 forkey:@ "height"];

Let Nsuserdefaults save the data immediately

[Defaults synchronize];

2 reading data from the Nsuserdefaults

1. Get Nsuserdefaults

Nsuserdefaults *defaults = [Nsuserdefaults standarduserdefaults];

2. Get the saved data via Nsuserdefaults

NSString *name = [Defaults objectforkey:@ "name"];

int age = [defaults integerforkey:@ ' age '];

One of iOS data stores--nsuserdefaults (preferences)