【深入淺出ios開發】偏好設置

每個應用都有個NSUserDefaults實例，通過它來存取偏好設置

保存數據：

- (IBAction)save:(id)sender {
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    [defaults setObject:@"Ranran" forKey:@"name"];
    [defaults setInteger:10 forKey:@"age"];
   // NSLog(@"%@",defaults);
    [defaults synchronize];
    
}

讀取數據：

- (IBAction)read:(id)sender {
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    id name = [defaults objectForKey:@"name"];
    NSInteger age = [defaults integerForKey:@"age"];
    NSLog(@"%@---%d",name,age);
}