Demo效果:

Demo效果.gif
使用規(guī)則:
#import "MMWaveView.h"
MMWaveView *view = [[MMWaveView alloc] initWithFrame:self.view.bounds];
view.delegate = self;
[self.view addSubview:view];
#pragma mark - MMWaveViewDelegate
- (void)waveViewTriggerAction:(MMWaveView *)waveView{
NSLog(@"respond to event action");
}
當(dāng)原有工程的某個視圖想有這個功能只需要繼承MMWaveView即可。
事件響應(yīng):
當(dāng)手指離開屏幕,整個箭頭出現(xiàn)在屏幕則會觸發(fā)事件響應(yīng)回調(diào)
更多了解您可以點擊Demo。