我正在使用这样的摇动 api:
- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
if (event.subtype == UIEventSubtypeMotionShake)
{
[img stopAnimating];
}
}
我如何检测到震动已经停止?
我正在使用这样的摇动 api:
- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
if (event.subtype == UIEventSubtypeMotionShake)
{
[img stopAnimating];
}
}
我如何检测到震动已经停止?
您走在正确的轨道上,但是,您还需要添加更多内容来检测抖动:
您可以通过向or方法添加一个NSLog
来测试它,然后在模拟器中,按motionBegan
motionEnded
CONTROL + COMMAND + Z
#pragma mark - Shake Functions
-(BOOL)canBecomeFirstResponder {
return YES;
}
-(void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:NO];
[self becomeFirstResponder];
}
-(void)viewWillDisappear:(BOOL)animated {
[super viewWillDisappear:NO];
}
-(void)viewDidDisappear:(BOOL)animated {
[self resignFirstResponder];
[super viewDidDisappear:NO];
}
-(void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
if (motion == UIEventSubtypeMotionShake )
{
// shaking has began.
}
}
-(void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
if (motion == UIEventSubtypeMotionShake )
{
// shaking has ended
}
}