彈出鍵盤怎樣把tableview往上頂？不遮住輸入行

彈出鍵盤怎樣把tableview往上頂？不遮住輸入行   

 

 

彈出鍵盤怎樣把tableview往上頂？不遮住輸入行 

 

- (void)registerForKeyboardNotifications {     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWasShown:) name:UIKeyboardDidShowNotification object:nil];     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillBeHidden:) name:UIKeyboardWillHideNotification object:nil];     NSLog(@"register"); } - (void)keyboardWasShown:(NSNotification *)aNotification {     NSDictionary* info = [aNotification userInfo];     CGSize kbSize = [[info objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;          UIEdgeInsets contentInsets = UIEdgeInsetsMake(0.0, 0.0, kbSize.height, 0.0);     displayTable.scrollEnabled = YES;     displayTable.contentInset = contentInsets;     displayTable.scrollIndicatorInsets = contentInsets;     NSLog(@"keyboardWasShown");          // If active text field is hidden by keyboard, scroll it so it's visible     // Your application might not need or want this behavior.     CGRect aRect = self.view.frame;     aRect.size.height -= kbSize.height;     if (!CGRectContainsPoint(aRect, activeField.superview.superview.frame.origin) ) {         CGPoint scrollPoint = CGPointMake(0.0, activeField.superview.superview.frame.origin.y-aRect.size.height+44);         [displayTable setContentOffset:scrollPoint animated:YES];     }     } - (void)keyboardWillBeHidden:(NSNotification *)aNotification {     UIEdgeInsets contentInsets = UIEdgeInsetsZero;     displayTable.contentInset = contentInsets;     displayTable.scrollIndicatorInsets = contentInsets; } [self registerForKeyboardNotifications]

 

	做出來了，注冊UIKeyboardDidShowNotification通知，在里面可以得到鍵盤的大小，算出鍵盤的搜索條間的矩形，加上一個背景為黑色 alpha為0.9的UIView 就行了，有搜索結果，再往上加UItableView

 

最正規的辦法，用通知 step 1： 在進入視圖的時候添加監視：（viewDidLoad什么的） 復制代碼 // Observe keyboard hide and show notifications to resize the text view appropriately.     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil]; step 2: 在鍵盤動作的時候移動視圖： 復制代碼 - (void)keyboardWillShow:(NSNotification *)notification {         /*      Reduce the size of the text view so that it's not obscured by the keyboard.      Animate the resize so that it's in sync with the appearance of the keyboard.      */     NSDictionary *userInfo = [notification userInfo];         // Get the origin of the keyboard when it's displayed.     NSValue* aValue = [userInfo objectForKey:UIKeyboardFrameEndUserInfoKey];     // Get the top of the keyboard as the y coordinate of its origin in self's view's coordinate system. The bottom of the text view's frame should align with the top of the keyboard's final position.     CGRect keyboardRect = [aValue CGRectValue];     keyboardRect = [self.view convertRect:keyboardRect fromView:nil];         CGFloat keyboardTop = keyboardRect.origin.y;     CGRect newTextViewFrame = self.view.bounds;     newTextViewFrame.size.height = keyboardTop - self.view.bounds.origin.y;         // Get the duration of the animation.     NSValue *animationDurationValue = [userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey];     NSTimeInterval animationDuration;     [animationDurationValue getValue:&animationDuration];         // Animate the resize of the text view's frame in sync with the keyboard's appearance.     [UIView beginAnimations:nil context:NULL];     [UIView setAnimationDuration:animationDuration];         textView.frame = newTextViewFrame;     [UIView commitAnimations]; } - (void)keyboardWillHide:(NSNotification *)notification {         NSDictionary* userInfo = [notification userInfo];         /*      Restore the size of the text view (fill self's view).      Animate the resize so that it's in sync with the disappearance of the keyboard.      */     NSValue *animationDurationValue = [userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey];     NSTimeInterval animationDuration;     [animationDurationValue getValue:&animationDuration];         [UIView beginAnimations:nil context:NULL];     [UIView setAnimationDuration:animationDuration];         textView.frame = self.view.bounds;         [UIView commitAnimations]; } step 3: 在退出視圖的時候注銷通知 viewDidUnload: 復制代碼 [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil];     [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillHideNotification object:nil]; dealloc: 復制代碼 [[NSNotificationCenter defaultCenter] removeObserver:self name:nil object:nil]; 這些代碼是摘自apple sample code KeyboardAccessory. 些許細節自己修改下就好了，比如那個textView

 

- (BOOL)textFieldDidBeginEditing:(UITextField *)textField {     UITableViewCell * cell=(UITableViewCell *)[[textField  superview] superview];     NSIndexPath *indexPath=[curTable indexPathForCell:cell];     if (indexPath.section==0) {              }else {         [UIView beginAnimations:@"ResizeForKeyBoard" context:nil];         [UIView setAnimationDuration:0.30f];           point = curTable.center;         curTable.center = CGPointMake(160, 120);         [UIView commitAnimations];     }     return YES; } - (BOOL)textFieldDidEndEditing:(UITextField *)textField {     UITableViewCell * cell=(UITableViewCell *)[[textField  superview] superview];     NSIndexPath *indexPath=[curTable indexPathForCell:cell];          if (indexPath.section==0) {              }else {         [UIView beginAnimations:@"ResizeForKeyBoard" context:nil];         [UIView setAnimationDuration:0.30f];                    curTable.center = point;         [UIView commitAnimations];     }     return YES; } -(BOOL)textFieldShouldReturn:(UITextField *)textField {          [textField resignFirstResponder];          return YES; }