Перемещение subview при появлении клавиатуры

Question

Я пытаюсь показать список комментариев, используя subview. Я добавил subview в self.view, и я добавил tableview к нему, чтобы показать список комментариев. теперь я хочу, чтобы пользователь добавил комментарий, я попытался добавить еще один подзаголовок к первому с текстовым полем и кнопкой в ​​нижней части экрана, но теперь я хочу переместить это представление вверх, когда клавиатура появится, а затем вернется внизу при отправке комментария, я попытался изменить рамки commentView, когда textfieldBeginEditing, но это не меняется! мой способ не работает, есть ли у вас идея делать то, что я хочу?

благодаря

это то, что я делаю, вид называется MyView является то, что я хочу двигаться вверх:

CGRect screenRect = [[UIScreen mainScreen] bounds]; 
CGFloat screenWidth = screenRect.size.width; 
CGFloat screenHeight = screenRect.size.height; 

// notification button 
myView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, screenWidth,screenHeight)]; 
[myView setBackgroundColor:[UIColor whiteColor]]; 
[myView setTag:2013]; 

commentView = [[UIView alloc] initWithFrame:CGRectMake(0,screenHeight-70,screenWidth,70)]; 
[commentView setBackgroundColor:[UIColor redColor]]; 
// [commentView viewWithTag:2031]; 

table = [[UITableView alloc] initWithFrame:CGRectMake(0,50, screenWidth, screenHeight-100)];; 
table.dataSource=self; 
table.delegate=self; 

UILabel *currentdate = [[UILabel alloc] initWithFrame:CGRectMake(0,10,screenWidth-40,50)]; 
currentdate.backgroundColor = [UIColor clearColor]; 
[currentdate setTextColor: [UIColor blueColor]]; 
[currentdate setText:@"Comments"]; 
currentdate.textAlignment= UITextAlignmentCenter; 
currentdate.font = [UIFont fontWithName:@"Helvetica" size:20.0]; 


commentFeild = [[UITextField alloc] initWithFrame:CGRectMake(60,10,screenWidth-60,30)]; 

commentFeild.placeholder=@"add comment"; 
commentFeild.backgroundColor = [UIColor whiteColor]; 
[commentFeild setTextColor: [UIColor blueColor]]; 
commentFeild.textAlignment= UITextAlignmentRight; 
commentFeild.font = [UIFont fontWithName:@"Helvetica" size:15.0]; 
[commentFeild.layer setCornerRadius:14.0f]; 
[commentFeild setTag:2113]; 
//[commentFeild setDelegate:self]; 

UIButton *doneBtn=[UIButton buttonWithType:UIButtonTypeRoundedRect]; 
doneBtn.frame = CGRectMake(screenWidth-45, 10,40, 30); 
doneBtn.backgroundColor = [ UIColor clearColor]; 
[doneBtn setTitle:@"done" forState:UIControlStateNormal]; 
[doneBtn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal]; 
[doneBtn addTarget:self action:@selector(hide) forControlEvents:UIControlEventTouchUpInside]; 

UIButton *add=[UIButton buttonWithType:UIButtonTypeRoundedRect]; 
add.frame = CGRectMake(5,10,50,30); 
add.backgroundColor = [ UIColor clearColor]; 
[add setTitle:@"add" forState:UIControlStateNormal]; 
[add setTitleColor:[UIColor blueColor] forState:UIControlStateNormal]; 
[add addTarget:self action:@selector(addComment) forControlEvents:UIControlEventTouchUpInside]; 

if(![taskObject.status isEqualToString:@"doneTask"]) 
{ 
    [commentView addSubview:commentFeild]; 
    [commentView addSubview:add]; 
} 

[myView addSubview:doneBtn]; 
[myView addSubview:currentdate]; 
[myView addSubview:table]; 
[myView addSubview:commentView]; 

[self.view addSubview:myView]; 

Answer 1

я думал, что вы хотите переместить табличное представление, услышать треску е вашего модифицированного один

 @interface ViewController ( <UITableViewDataSource,UITableViewDelegate,UITextFieldDelegate> 
    { 
     BOOL KeyboardShown; 
    } 

    @end 

    @implementation ViewController 

    - (void)viewDidLoad 
    { 
    [super viewDidLoad]; 
    KeyboardShown = NO; 

// Do any additional setup after loading the view, typically from a nib. 
    CGRect screenRect = [[UIScreen mainScreen] bounds]; 
    CGFloat screenWidth = screenRect.size.width; 
    CGFloat screenHeight = screenRect.size.height; 

// notification button 

    UIView *myView,*commentView; 

    myView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, screenWidth,screenHeight)]; 
    [myView setBackgroundColor:[UIColor whiteColor]]; 
    [myView setTag:2013]; 

    commentView = [[UIView alloc] initWithFrame:CGRectMake(0,screenHeight-70,screenWidth,70)]; 
    [commentView setBackgroundColor:[UIColor redColor]]; 
// [commentView viewWithTag:2031]; 

    UITableView *table; 
    table = [[UITableView alloc] initWithFrame:CGRectMake(0,50, screenWidth, screenHeight-100)];; 
    table.dataSource=self; 
    table.delegate=self; 
    table.tag = 12345; 

    UILabel *currentdate = [[UILabel alloc] initWithFrame:CGRectMake(0,10,screenWidth-40,50)]; 
    currentdate.backgroundColor = [UIColor clearColor]; 
    [currentdate setTextColor: [UIColor blueColor]]; 
    [currentdate setText:@"Comments"]; 
    currentdate.textAlignment= NSTextAlignmentCenter; 
    currentdate.font = [UIFont fontWithName:@"Helvetica" size:20.0]; 


    UITextField *commentFeild = [[UITextField alloc] initWithFrame:CGRectMake(60,10,screenWidth-60,30)]; 

    commentFeild.placeholder=@"add comment"; 
    commentFeild.backgroundColor = [UIColor whiteColor]; 
    [commentFeild setTextColor: [UIColor blueColor]]; 
    commentFeild.textAlignment= NSTextAlignmentRight; 
    commentFeild.font = [UIFont fontWithName:@"Helvetica" size:15.0]; 
    [commentFeild.layer setCornerRadius:14.0f]; 
    [commentFeild setTag:2113]; 
    commentFeild.delegate = self; 
    //[commentFeild setDelegate:self]; 

    UIButton *doneBtn=[UIButton buttonWithType:UIButtonTypeRoundedRect]; 
    doneBtn.frame = CGRectMake(screenWidth-45, 10,40, 30); 
    doneBtn.backgroundColor = [ UIColor clearColor]; 
    [doneBtn setTitle:@"done" forState:UIControlStateNormal]; 
    [doneBtn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal]; 
    [doneBtn addTarget:self action:@selector(hide) forControlEvents:UIControlEventTouchUpInside]; 

    UIButton *add=[UIButton buttonWithType:UIButtonTypeRoundedRect]; 
    add.frame = CGRectMake(5,10,50,30); 
    add.backgroundColor = [ UIColor clearColor]; 
    [add setTitle:@"add" forState:UIControlStateNormal]; 
    [add setTitleColor:[UIColor blueColor] forState:UIControlStateNormal]; 
    [add addTarget:self action:@selector(addComment)  forControlEvents:UIControlEventTouchUpInside]; 


    // if(![taskObject.status isEqualToString:@"doneTask"]) 
    // { 
    //  [commentView addSubview:commentFeild]; 
    //  [commentView addSubview:add]; 
    // } 

[myView addSubview:doneBtn]; 
[myView addSubview:currentdate]; 
[myView addSubview:table]; 
[myView addSubview:commentView]; 
[commentView addSubview:commentFeild]; 
[self.view addSubview:myView]; 

} 

    - (void)viewDidAppear:(BOOL)animated 
    { 
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDidShow:) name:UIKeyboardWillShowNotification object:nil]; 
     [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(keyboardDidDisappear:) name:UIKeyboardDidHideNotification object:nil]; 
    } 

    - (void)viewDidDisappear:(BOOL)animated 
    { 
     [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil]; 
     [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardDidHideNotification object:nil]; 
    } 





- (void)didReceiveMemoryWarning 
    { 
     [super didReceiveMemoryWarning]; 
    // Dispose of any resources that can be recreated. 
    } 

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView 
    { 
     return 1; 
    } 
    -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
    { 
     return 5; 
    } 

    -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
     { 
     UITableViewCell *cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"cell"]; 

     cell.textLabel.text = @"hello"; 
     return cell; 


    } 

    - (void)keyboardDidShow:(NSNotification *)notification 
    { 
     //UIView *containerView = [self.view viewWithTag:2013]; comment this and get tableview by TAG 
     UITableView *tableView = (UITableView *)[self.view viewWithTag:12345]; 
     UIView *commentView = [self.view viewWithTag:1000];//i changed the tag and see u missed the tag for this view in viewDisLoad method check it once 


    if(!KeyboardShown) 
    { 
     KeyboardShown = YES; 
     NSLog(@"KeyBoard appeared"); 
     NSDictionary *info=[notification userInfo]; 
     NSValue *aValue=[info objectForKey:UIKeyboardFrameEndUserInfoKey]; 

     CGRect keyBoardRect=[aValue CGRectValue]; 
     keyBoardRect=[self.view convertRect:keyBoardRect fromView:nil]; 
     CGFloat keyBoardTop=keyBoardRect.origin.y; //i am getting the height of the keyboard 


     CGRect commentViewRect = commentView.frame; 
     commentViewRect.origin.y = keyBoardTop - 70; //it is the height of comment view 

     CGRect tableRect = tableView.frame; 
     tableRect.size.height = tableRect.size.height - keyBoardTop + 77;//adjust the height 



     [UIView animateWithDuration:0.2 animations:^{ 
     tableView.frame = tableRect; 
     commentView.frame = commentViewRect; 

    }]; 



    } 


} 




    - (void)keyboardDidDisappear:(NSNotification *)notification 
    { 

    // UIView *containerView = [self.view viewWithTag:2013]; //comment this 
    //dong same as above , ressetting the same as above 
    CGRect screenRect = [[UIScreen mainScreen] bounds]; 
    CGFloat screenWidth = screenRect.size.width; 
    CGFloat screenHeight = screenRect.size.height; 

    UITableView *tableView = (UITableView *)[self.view viewWithTag:12345]; 
    UIView *commentView = [self.view viewWithTag:1000]; 

    if(KeyboardShown) 
    { 
     KeyboardShown = NO; 
     CGRect tableRect =CGRectMake(0,50, screenWidth, screenHeight-100); 
     CGRect commentViewRect = CGRectMake(0,screenHeight-70,screenWidth,70); 


     [UIView animateWithDuration:0.2 animations:^{ 
     tableView.frame = tableRect; 
     commentView.frame = commentViewRect; 

     }]; 
    } 
    } 









- (BOOL)textFieldShouldReturn:(UITextField *)textField 
    { 
     [textField resignFirstResponder]; 
     return YES; 
    } 

@end 

Answer 2

Я думаю, вы должны пройти через doc

Answer 3

U нужно использование уведомлений при появлении и исчезновении клавиатуры

в viewDidLoad метод Добавить это

 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDidShow:) name:UIKeyboardWillShowNotification object:nil]; 
    [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(keyboardDidDisappear:) name:UIKeyboardDidHideNotification object:nil]; 

выше методов уволят, когда клавиатура появлялись и исчезали использовать это, чтобы внести изменения Ур Tableview

для exaple

-(void)keyboardDidShow:(NSNotification *)notification 
    { 
     NSLog(@"KeyBoard appeared"); 
     NSDictionary *info=[notification userInfo]; 
     NSValue *aValue=[info objectForKey:UIKeyboardFrameEndUserInfoKey]; 

     CGRect keyBoardRect=[aValue CGRectValue]; 
     keyBoardRect=[self.view convertRect:keyBoardRect fromView:nil]; 
     CGFloat keyBoardTop=keyBoardRect.origin.y; //i am getting the height of the keyboard 

     self.aTableView.contentInset=UIEdgeInsetsMake(0, 0, keyBoardTop+50, 0); //adjust the height by setting the "contentInset" 


    } 

когда клавиатура исчезла нравится этот

-(void)keyboardDidDisappear:(NSNotification *)notification 
    { 
     NSLog(@"KeyBoard Disappeared"); 

     [UIView beginAnimations:nil context:NULL]; 
     [UIView setAnimationDuration:0.2]; 
     self.addContactTableView.contentInset=UIEdgeInsetsMake(10, 0, 10, 0); //set to normal by setting the "contentInset" 

     [UIView commitAnimations]; 

    } 

немного работы вокруг этого у может достигнуть ваше требование

надеюсь, что это помогает u :)