按钮,滑动条 点击隐藏,点击显现
static int z=0;
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
if (z==0) {
self.view.backgroundColor=[UIColor blackColor];
_doBackbutton.hidden=YES;
_doJumpbutton.hidden=YES;
_slider.hidden=YES;
z=1;
}
else {
self.view.backgroundColor=[UIColor whiteColor];
_doBackbutton.hidden=NO;
_doJumpbutton.hidden=NO;
_slider.hidden=NO;
z=0;
}
}