iOS development about Uisearchbar Custom Cancel button color, font, size

Two methods
1: Traverse Searchbar sub-view directly, this method is not very good, because as the version upgrade its internal level may change (for example, IOS11 navigation bar, understand nature)

2: Take the private variable

UIButton *cancel = [self valueforkey:@ "_cancelbutton"];

[Cancel Settitle:@ "cancellation" forstate: UIControlStateNormal];

It's not possible to write this state.

[Cancel Settitle:@ "cancellation" forstate: uicontrolstatedisabled];

[Cancel Settitlecolor: [Uicolor blackcolor] forstate: UIControlStateNormal];

[Cancel Settitlecolor: [Uicolor blackcolor] forstate: uicontrolstatedisabled];

Cancel.titlelabel. Font = [Uifont systemfontofsize:];

Tips: How to get a private variable, here's a piece of code (see what you can guess by name)

Gets the address of the first member variable

Ivar *ivars = Class_copyivarlist([Uisearchbar class], &count);

for (int i = 0; i < count; i++) {

Ivar Ivar = * (Ivars + i);

NSLog(@ "%s", Ivar_getname(Ivar));

}

Who Copy who releases

Free (ivars);

iOS development about Uisearchbar Custom Cancel button color, font, size