切换开关以关闭应用程序声音 [英] Toggle switch to turn off application sounds
本文介绍了切换开关以关闭应用程序声音的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我的应用程序中有多个声音.我想在设置中设置一个切换开关来关闭这些声音.这是执行声音的代码.
I have multiple sounds in my application. I want to setup a toggle switch in settings to turn these sounds off. Here is the code that executes the sounds.
- (void) soundEventDidHappen:(NSString*)eventName {
//check dictionary of sounds.. if there is a corresponding sound for this event name, play it
if ([[soundIDForEventString allKeys] containsObject:eventName]) {
AudioServicesPlaySystemSound ([[soundIDForEventString objectForKey:eventName] intValue]);
}
推荐答案
您可以像这样进行简单的切换:
You could make a simple toggle like this:
bool isToggled;
- (IBAction) toggleSound{
if(isToggled){
isToggled = NO; //sets isToggled to false if it's already true
}
else{
isToggled = YES; //sets isToggled to true if it's already false
}
}
然后你可以这样做:
- (void) soundEventDidHappen:(NSString*)eventName {
//check dictionary of sounds.. if there is a corresponding sound for this event name, play it
if(isToggled){
if ([[soundIDForEventString allKeys] containsObject:eventName]) {
AudioServicesPlaySystemSound ([[soundIDForEventString objectForKey:eventName] intValue]);
}
}
}
如果 isToggled
为真,它将播放声音.如果您想为将来保存布尔值,则可以使用 NSUserDefaults
:
Which will play the sound if isToggled
is true. You could then use NSUserDefaults
if you would like to save the boolean for the future:
[[NSUserDefaults standardUserDefaults] setBool:isToggled forKey:@"soundEnabled"];
[[NSUserDefaults standardUserDefaults] synchronize];
//use this to save
然后您可以使用它来获取值(很可能在您的 viewDidLoad
方法中的某处:
Then you could use this to get the value (most likely somewhere in your viewDidLoad
method:
isToggled = [[NSUserDefaults standardUserDefaults] boolForKey:@"soundEnabled"];
[[NSUserDefaults standardUserDefaults] synchronize];
这篇关于切换开关以关闭应用程序声音的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文