UIButton的showsTouchWhenHighlighted属性设置为YES后,点击有个白色火花效果
如下代码:
UIButton *beganBtn = [UIButton buttonWithType:UIButtonTypeCustom];
[beganBtn setTitle:@"立即体验" forState:UIControlStateNormal];
beganBtn.titleLabel.font = [UIFont systemFontOfSize:18.0f];
beganBtn.showsTouchWhenHighlighted = YES;
[beganBtn setFrame:CGRectMake(100.0f, 100.0f, 100.0f, 35.0f)];
[self.view addSubview:beganBtn];