- (void)textFieldDidBeginEditing:(UITextField *)textField{
NSArray *ws = [[UIApplication sharedApplication] windows];
for(UIView *w in ws){
NSArray *vs = [w subviews];
for(UIView *v in vs){
if([[NSString stringWithUTF8String:object_getClassName(v)] isEqualToString:@"UIPeripheralHostView"]){
v.backgroundColor = [UIColor redColor];
}
}
}
}
