// 思路：判断有没有UIKBHandwritingView，遍历全部viewwindows
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)stringspa
{ip
#warning 担忧苹果改变键盘结构，没有取到UIKBHandwritingView；形成没法消费！string
NSString *yuan = @"邓超界";it
if (![string isEqualToString:yuan]) {io
[SVProgressHUD showErrorWithStatus:@"签名不是持卡人姓名，请重写;若是不是手写键盘，请长按或者点击键盘上左下角的地球图标，选择 简体手写"];class
textField.text = @"";遍历
return NO;layout
}键盘
if ([string isEqualToString:@"\n"]) {
return NO;
}
// 判断有没有UIKBHandwritingView 遍历全部view
UIView *handwritingView;
for (UIWindow *keyboardWindow in [[UIApplication sharedApplication] windows]) {
if ([[keyboardWindow description] hasPrefix:@"<UIRemoteKeyboardWindow"] == YES) {
for (UIView *setContainer in keyboardWindow.subviews) {
if ([[setContainer description] hasPrefix:@"<UIInputSetContainerView"] == YES) {
for (UIView *setHost in setContainer.subviews) {
if ([[setHost description] hasPrefix:@"<UIInputSetHostView"] == YES) {
for (UIView *compat in setHost.subviews) {
if ([[compat description] hasPrefix:@"<_UIKBCompatInputView"] == YES) {
for (UIView *automatic in compat.subviews) {
if ([[automatic description] hasPrefix:@"<UIKeyboardAutomatic"] == YES) {
for (UIView *lmpl in automatic.subviews) {
if ([[lmpl description] hasPrefix:@"<UIKeyboardImpl"] == YES) {
for (UIView *layoutStar in lmpl.subviews) {
if ([[layoutStar description] hasPrefix:@"<UIKeyboardLayoutStar"] == YES) {
for (UIView *plane in layoutStar.subviews) {
if ([[plane description] hasPrefix:@"<UIKBKeyplaneView"] == YES) {
for (UIView *view in plane.subviews) {
if([[view description] hasPrefix:@"<UIKBHandwritingView"] == YES){
handwritingView = view;
break;
}
}
break;
}
}
break;
}
}
break;
}
}
break;
}
}
break;
}
}
break;
}
}
break;
}
}
break;
}
}
if (handwritingView) {
// 截屏
[self printscreenOfView:handwritingView];
[SVProgressHUD showSuccessWithStatus:@"签名正确"];
}else
{
[SVProgressHUD showInfoWithStatus:@"请长按或者点击键盘上左下角的地球图标，切换键盘为 简体手写"];
textField.text = @"";
return NO;
}
return YES;
}