A few simple code to retract the keyboard in the empty space of IOS

Retract the keyboard 1

-(void) Touchesbegan: (Nsset *) touches withevent: (Uievent *) event

{

[Self.view.subviews enumerateobjectsusingblock:^ (id obj, Nsuinteger idx, BOOL *stop) {

[((uiview*) obj) Resignfirstresponder];

}];

} 

Retract the keyboard 2

-(void) Resignkeyboardinview: (UIView *) view

{

For (UIView *v in View.subviews)

{

if ([v.subviews count] > 0)

{

[Self resignkeyboardinview:v];

}

if ([V Iskindofclass:[uitextview class]] | | [V Iskindofclass:[uitextfield class]]) {

[v Resignfirstresponder];

}

}

}

Retract keyboard 3--

-(void) touchesended: (Nsset *) touches withevent: (Uievent *) event

{

For (uiview* view in self.view.subviews) {

if ([View Iskindofclass:[uitextfield class]])

[View Resignfirstresponder];

}

}

Retract keyboard 4---applicable scrollview

Premise: View inherits Uicontorl, Connection touch down

Touch down--action

-(Ibaction) Backgroundtap: (ID) sender

{

[phonenumbertextfiled resignfirstresponder];//notification text loses first responder status keyboard retract

}