昨天接到新的修改需求，要求有的页面不能返回，必须强制用户往下走流程，当时一听差点给跪啦！无奈啊，谁叫我是干开发的，改吧！初步一想，把返回按钮关掉就OK啦，确实返回按钮关掉就不能按返回按钮返回上一页啦，窃喜！！！后来发现还有边缘返回，这下头疼了，只关掉按钮明显达不到效果，于是赶紧求助小伙伴，各种支招，真是非常的感谢他们，一一试过，发现达不到效果。无奈之下，自己尝试，历经磨难，终于成功，现在献上代码，希望对大家有帮助！写的不好的地方尽请见谅，本人第一次写！
- (void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
self.isCanSideBack = NO;
//关闭ios右滑返回
if([self.navigationControllerrespondsToSelector:@selector(interactivePopGestureRecognizer)]) {
self.navigationController.interactivePopGestureRecognizer.delegate=self;
}
}
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer*)gestureRecognizer {
return self.isCanSideBack;
}
之前的写法，测试之后发现有bug，如果是直接调用[self.navigationController popToRootViewControllerAnimated:YES];不会走viewDidDisappear里的逻辑，离开该页以后，右滑返回失效了，所以做了如下的修改，在离开页面的方法里，调用[self resetSideBack];即可保证只是当前页的右滑返回被关闭，其他页面的右滑返回依然正常！
- (void)viewDidDisappear:(BOOL)animated {
[superviewDidDisappear:animated];
[self resetSideBack];
}
/**
*恢复边缘返回
*/
- (void)resetSideBack {
self.isCanSideBack=YES;
//开启ios右滑返回
if([self.navigationControllerrespondsToSelector:@selector(interactivePopGestureRecognizer)]) {
self.navigationController.interactivePopGestureRecognizer.delegate = nil;
}
}
补充说明：实现类需要继承
<UIGestureRecognizerDelegate>协议，而- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer*)gestureRecognizer是系统自己调用的！
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UIPanGestureRecognizer * pan = [[UIPanGestureRecognizer alloc]initWithTarget:traget action:nil];
pan.cancelsTouchesInView = NO;
pan.delaysTouchesEnded = NO;
[self.view addGestureRecognizer:pan];
id traget = self.navigationController.interactivePopGestureRecognizer.delegate;
UIPanGestureRecognizer * pan = [[UIPanGestureRecognizer alloc]initWithTarget:traget action:nil];
[self.view addGestureRecognizer:pan];
直接将代码拷贝到viewDidLoad总就行了，我是深深的买醉了
//开启ios右滑返回
if([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
self.navigationController.interactivePopGestureRecognizer.delegate = self;
//这里应该是 self 做代理
}
- (void)dealloc{
self.navigationController.delegate = nil;
}
//在 dealloc 中给 delegate置nil
ios10 自带输入法，输入两个拼音时，不显示汉字，显示....求解这个问题如何解决
self.navigationController.interactivePopGestureRecognizer.enabled = NO;
让系统左滑失效