Question

iam使用setting.bundle，我尝试使用Switch toggle显示隐藏的图片，这是我的代码，但我想念一下：

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; 
[//Some code show the hidden pic];   myPic.hidden = NO;

我的密钥是.e.g = wood_back 我应该使用ObjectForKey吗？

//声音问题：

现在我尝试关闭我的应用程序的声音效果

播放方法为[myMusic play];

BOOL soundIsOff = [defaults boolForKey:@"sound_off"];
//the problem is here :D
//xcode compiler doesn't copile this code 

[myMusic play] = soundIsOff

声音代码：

///sound effect
    NSString * musicSonati = [[NSBundle mainBundle] pathForResource:@"sound" ofType:@"wav"];
    myMusic = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:musicSonati] error:NULL];
    myMusic.delegate = self;
    myMusic.numberOfLoops = 0;

Answer 1

如果是切换切换，您应该使用boolForKey:返回值。

BOOL wood_back = [defaults boolForKey:@"wood_back"];
// do anything with wood_back, e.g.
myPic.hidden = wood_back;

Answer 2

[NSUserDefaults standardUserDefaults]值不会自动与Settings.bundle plist文件中定义的值同步。查看我的详细article on how to keep user defaults synched in your app。

NSUserDefaults并显示图片

2 个答案: