我正在创建一个应用程序，当显示键盘时，移动视图（当iPone 4s / 5 / 5c / 5s时）。但是，当我使用数字pa键入内容时，它会触发视图返回。 public MyContext() : base("MyConnection")
{
var objectContext = ((IObjectContextAdapter) this).ObjectContext;
objectContext.SavingChanges += (sender, args) =>
{
foreach (var entry in ChangeTracker.Entries())
{
var entity = entry.Entity;
var state = entry.State;
if (entity is BaseEntity)
{
ProcessEntity((BaseEntity)entity, state);
}
}
ChangeTracker.DetectChanges();
};
}
private void ProcessEntity<T>(T entity, EntityState state) where T : BaseEntity
{
switch (state)
{
case EntityState.Added:
var set = Set<T>();
(entity as BaseEntity).Id = GetMaxId(set) + 1;
break;
}
}
的代码会更改文本，然后将其分配回教科书。
textField:shouldChangeCharactersInRange:replacementString我与- (BOOL) textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
NSString* totalString = [NSString stringWithFormat:@"%@%@",textField.text,string];
if(textField.tag==102) {
if (([textField.text isEqualToString:@"0"]) && (textField.text.length == 1)) {
textField.text = @"";
NSLog(@"Zero Encountered");
return NO;
}
if (range.length == 1) {
// Delete button was hit.. so tell the method to delete the last char.
textField.text = [_iOSApiService_model formatPhoneNumber:totalString deleteLastChar:YES];
} else {
textField.text = [_iOSApiService_model formatPhoneNumber:totalString deleteLastChar:NO];
}
return YES;
}
return YES;
}
-(void) keyboardWasShown:(NSNotification *)notification {
//The keyboard was shown, move movableView objects UP
NSLog(@"value of _keyboardshownUp is %i",_keyboardshownUp);
if (_keyboardshownUp == 1) {
//Keyboard was already shown
} else {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
//This will move the frame back to place
_movableView.frame = CGRectMake(_movableView.frame.origin.x,
_movableView.frame.origin.y+_variableMove,
_movableView.frame.size.width,
_movableView.frame.size.height);
[UIView commitAnimations];
NSLog(@"Move View up");
_keyboardshownUp = 1;
}
}
-(void) keyboardWillHide:(NSNotification *)notification {
//The keyboard was shown, move movableView objects down
NSLog(@"value of _keyboardshownUp is %i",_keyboardshownUp);
if (_keyboardshownUp == 0) {
//Keyboard was already hiden
} else {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
//This will move the frame back to place
_movableView.frame = CGRectMake(_movableView.frame.origin.x,
_movableView.frame.origin.y-_variableMove,
_movableView.frame.size.width,
_movableView.frame.size.height);
[UIView commitAnimations];
NSLog(@"Move View Down");
_keyboardshownUp = 0;
}
}
和UIKeyboardWillHideNotification一起执行此操作。如果我禁用UIKeyboardDidShowNotification，那么没有问题。但是，当我为“问题”textField:shouldChangeCharactersInRange:replacementString分配一个值时，好像键盘被隐藏（即使它不是）并且主UITextField恢复到其原始位置，因此键盘模糊不清风景。请帮助!!!
答案 0 :(得分：2)
最近我面临这样的问题，这就是为什么我要创建一个库来面对这种情况。看看KeyboardAnimator。希望它符合您的要求。
答案 1 :(得分：0)
要移动UI控制器，在为UITextField分配值时，请使用“IQKeybordManager”库来解决此问题。 IQKeybordManager遇到了iPhone键盘向上滑动并覆盖UITextField / UITextView的问题。 IQKeyboardManager允许您防止键盘滑动问题并覆盖UITextField / UITextView，而无需您输入任何代码，也无需其他设置。要使用IQKeyboardManager，只需将源文件添加到项目中即可。