- //检查前后摄像头
- - (void)cameraBtnAction:(id)sender
- {
- BOOL cameraAvailable = [UIImagePickerController isCameraDeviceAvailable:
- UIImagePickerControllerCameraDeviceRear];//前
- BOOL frontCameraAvailable = [UIImagePickerController isCameraDeviceAvailable:
- UIImagePickerControllerCameraDeviceFront];//后
- }
- //检查指南针 CoreLocation.framework <CoreLocation/CoreLocation.h>
- - (void)magnetometerBtnAction:(id)sender
- {
- BOOL magnetometerAvailbale = [CLLocationManager headingAvailable];
- }
- //检查声音支持 AVFoundation.framework <AVFoundation/AVFoundation.h>
- - (bool)audioBtnAction:(id)sender
- {
- //返回一个AVAudioSession实例
- AVAudioSession *audioSession = [AVAudioSession sharedInstance];
- BOOL audioAvailable = audioSession.inputAvailable;//bool值。获取是否支持
- }
- //检查录像支持 MobileCoreServices.framework <MobileCoreServices/MobileCoreServices.h>
- - (BOOL)isvideoCameraAvailable
- {
- //简单检查所有的可用的媒体资源类型,然后检查返回的数组,
- //如果其中包含了kUTTypeMovie的NSString类型对象,就证明摄像头支持录像
- UIImagePickerController *picker = [[UIImagePickerController alloc]init];
- //返回所支持的media的类型数组
- NSArray *sourceTypes = [UIImagePickerController availableMediaTypesForSourceType:picker.sourceType];
- [picker release];
- if (![sourceTypes containsObject:(NSString *)kUTTypeMovie]) {//containsObject确定数组中是否包含后面的对象
- return NO;
- }
- return YES;
- }
- //检查陀螺仪可用 CoreMotion.framework <CoreMotion/CoreMotion.h>
- - (BOOL) isGyroscopeAvailable
- {
- #ifdef __IPHONE_4_0//4.0之后才有
- CMMotionManager *motionManager = [[CMMotionManager alloc]init];
- BOOL gyroscopeAvailable = motionManager.gyroAvailable;
- [motionManager release];
- return gyroscopeAvailable;
- #else
- return NO;
- #endif
- }
来源: http://www.phpxs.com/code/1005664/