IOS檢測晃動的兩種方式
第一種:
第一步:在AppDelegate中設定如下:
- (BOOL)application:(UIApplication *)applicationdidFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
application.applicationSupportsShakeToEdit = YES;
}
第二步:在相應的viewController中新增相應的程式碼如下:
-(BOOL)canBecomeFirstResponder {
returnYES;
}
-(void)viewDidAppear:(BOOL)animated {
[superviewDidAppear:animated];
[selfbecomeFirstResponder];
}
- (void)viewWillDisappear:(BOOL)animated {
[selfresignFirstResponder];
[superviewWillDisappear:animated];
}
- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent*)event
{
if (motion== UIEventSubtypeMotionShake) {
NSLog(@"檢測到晃動");
}
}
在模擬器中測試晃動,按組合鍵:Ctrl + Win + Z
第二種:
利用UIAccelerometer加速器來檢測,程式碼如下:
- (void)viewDidLoad
{
UIAccelerometer *accelerometer = [UIAccelerometersharedAccelerometer];
accelerometer.delegate = self;
accelerometer.undateInterval = 1.0f / 60.0f;
}
- (void)accelerometer:(UIAccelerometer *)accelerometerdidAccelerate:(UIAcceletration *)acceleration
{
if(fabsf(acceleration.x)>2.0||fabsf(acceleration.y>2.0)||fabsf(acceleration.z)>2.0)
{
//NSLog(@"檢測到晃動");
}
}