我正在尝试找到一种方法来检测 Xamarin.iOS 中耳机插孔上的插入/拔出事件,特别是在最新版本(iOS 7)上。我找到了为早期版本提供解决方案的帖子,但这似乎不适用于 iOS 7。有没有办法在这个版本中做到这一点?如果是,我该如何实现该功能?
问问题
1605 次
2 回答
2
像这样的东西:
using System.Runtime.InteropServices;
using MonoTouch.AudioToolbox;
...
public override void ViewDidLoad ()
{
base.ViewDidLoad ();
AudioSession.AddListener(AudioSessionProperty.AudioRouteChange, EventHandler);
}
void EventHandler(AudioSessionProperty prop, int size, IntPtr data)
{
var isHeadphonesAvailable = IsHeadphonesAvailable (prop, size, data);
if (isHeadphonesAvailable) {
// Do something
} else {
// Do something else
}
}
bool IsHeadphonesAvailable(AudioSessionProperty prop, int size, IntPtr data)
{
var result = false;
if (prop == AudioSessionProperty.AudioRouteChange) {
var text = Marshal.PtrToStringAuto (data, size);
result = (text.Contains ("Head"));
}
return result;
}
没在真机上试过。只需转换其中一个Objective-C
片段。
于 2013-11-02T18:08:38.087 回答
1
using System.Runtime.InteropServices;
using MonoTouch.AudioToolbox;
public override void ViewDidLoad()
{
base.ViewDidLoad();
.
.
.
AudioSession.Initialize(null, NSRunLoop.NSDefaultRunLoopMode);
AudioSession.AudioRouteChanged += AudioSession_AudioRouteChanged;
}
void AudioSession_AudioRouteChanged (object sender, AudioSessionRouteChangeEventArgs e)
{
if (e.CurrentOutputRoutes [0] == AudioSessionOutputRouteKind.Headphones)
{
//Code when is plugged
}
else
{
//Code when is unplugged
}
}
于 2013-11-12T19:10:51.013 回答