iOS鍵盤彈出與退回和文字框的完美適配
如上圖所示，需要編輯使用者的資訊，鍵盤需要根據所輸入的行來合理的顯示鍵盤位置
①，文字框新增監聽
//新增監聽
[selfaddRegisterText:leftTitleRightText.textFieldRight];
//新增監聽
- (void)addRegisterText:(DoneTextField *)textField
{
[[NSNotificationCenterdefaultCenter] addObserver:selfselector:@selector(textFieldEdit:) name:UITextFieldTextDidBeginEditingNotification
}
②，鍵盤新增監聽//監聽鍵盤，新增監聽
[selfaddNotification];
- (void)addNotification
{
[[NSNotificationCenterdefaultCenter] addObserver:selfselector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotificationobject:nil];
[[NSNotificationCenterdefaultCenter] addObserver:selfselector
}
//鍵盤彈出
- (void)keyboardWillShow:(NSNotification *)notification
{
NSDictionary *keyInfo = [notification userInfo];
//獲取高度
id keyBoardValue = [keyInfo objectForKey:UIKeyboardFrameBeginUserInfoKey];
CGSize keyBoardSize = [keyBoardValue
//獲取鍵盤彈出時間
id keyBoardDurationValue = [keyInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey];
//如果鍵盤蓋住文字框，則移動
CGFloat allH = CGRectGetMaxY(self.currentOperateTextRect)+keyBoardSize.height;
if (allH > (kScreenHeight-kNavH)) {
CGPoint backScrollViewPoint = self.backScrollView.contentOffset;
//相差的距離
backScrollViewPoint.y = allH - kScreenHeight;
//動畫效果
[UIViewanimateWithDuration:[keyBoardDurationValue floatValue] animations:^{
self.backScrollView.contentOffset = backScrollViewPoint;
} completion:^(BOOL finished) {
}];
}
}
//鍵盤隱藏
- (void)keyboardWillHide:(NSNotification *)notification
{
NSDictionary *keyInfo = [notification userInfo];
//獲取高度
id keyBoardValue = [keyInfo objectForKey:UIKeyboardFrameBeginUserInfoKey];
CGSize keyBoardSize = [keyBoardValue CGRectValue].size;
//獲取鍵盤彈出時間
id keyBoardDurationValue = [keyInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey];
CGPoint backScrollViewPoint = self.backScrollView.contentOffset;
backScrollViewPoint.y = -kNavH;
//動畫效果
[UIViewanimateWithDuration:[keyBoardDurationValue floatValue] animations:^{
self.backScrollView.contentOffset = backScrollViewPoint;
} completion:^(BOOL finished) {
}];
}
注意：@property (nonatomic,assign) CGRect currentOperateTextRect;
全域性變數，記錄啟用那個文字框的frame