Objective-C: Programmgesteuertes UITableViewCell Height-Problem?

Question

Wie UITableViewCell Höhe zur Laufzeit, um die Größe Inhalt nach von Reaktion kommenden

ist hier mein Code:

.h

@interface ViewController : UIViewController<UITableViewDelegate,UITableViewDataSource>  
@end 

.m

import "ViewController.h" 
import "CustomCellTableViewCell.h" 

static NSString *cellIdentifier = @"cellIdentifier"; 


@implementation ViewController 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    [self cofigureTableview]; 
} 

-(void)cofigureTableview 
{ 
    self.table = [[UITableView alloc] initWithFrame:self.view.bounds style:UITableViewStylePlain]; 
    self.table.delegate = self; 
    self.table.dataSource = self; 
    [self.view addSubview:self.table]; 
} 

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

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
{ 
     return 2; 
} 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 

    CustomCellTableViewCell *cell = [self.table dequeueReusableCellWithIdentifier:cellIdentifier]; 
    cell = [[CustomCellTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier]; 
    [self setUpCell:cell atIndexPath:indexPath]; 

    return cell; 
} 

- (void)setUpCell:(CustomCellTableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath 
{ 
    if (cell != nil) 
    { 
     UILabel *averageRatingLabel = [[UILabel alloc]init]; 
     averageRatingLabel.text = @"Average Rate"; 
     averageRatingLabel.textAlignment = NSTextAlignmentLeft; 
     averageRatingLabel.numberOfLines = 0; 
     averageRatingLabel.lineBreakMode = NSLineBreakByWordWrapping; 
     averageRatingLabel.textColor = [UIColor blackColor]; 
     averageRatingLabel.translatesAutoresizingMaskIntoConstraints = NO; 
     averageRatingLabel.font = [UIFont systemFontOfSize:12]; 
     [cell.contentView addSubview:averageRatingLabel]; 

     ///// 
     UILabel *sortByLabel = [[UILabel alloc]init]; 
     sortByLabel.text = @"SORT BY Value:"; 
     sortByLabel.textAlignment = NSTextAlignmentLeft; 
     sortByLabel.numberOfLines = 0; 
     sortByLabel.lineBreakMode = NSLineBreakByWordWrapping; 
     sortByLabel.textColor = [UIColor grayColor]; 
     sortByLabel.translatesAutoresizingMaskIntoConstraints = NO; 
     sortByLabel.font = [UIFont systemFontOfSize:10]; 
     [cell.contentView addSubview:sortByLabel]; 


     UILabel *sortByLabel1 = [[UILabel alloc]init]; 
     sortByLabel1.text = @"I want to adjust the row height of a UITableView according to the cell in that row. I want to adjust the row height of a UITableView according to the cell in that row.I want to adjust the row height of a UITableView according to the cell in that row"; 

     sortByLabel1.textAlignment = NSTextAlignmentLeft; 
     sortByLabel1.numberOfLines = 0; 
     sortByLabel1.lineBreakMode = NSLineBreakByWordWrapping; 
     sortByLabel1.textColor = [UIColor grayColor]; 
     sortByLabel1.translatesAutoresizingMaskIntoConstraints = NO; 
     sortByLabel1.font = [UIFont systemFontOfSize:10]; 
     [cell.contentView addSubview:sortByLabel1]; 

     UILabel *sortByLabel2 = [[UILabel alloc]init]; 
     sortByLabel2.text = @"Is there any method to achieve this:"; 
     sortByLabel2.textAlignment = NSTextAlignmentLeft; 
     sortByLabel2.numberOfLines = 0; 
     sortByLabel2.lineBreakMode = NSLineBreakByWordWrapping; 
     sortByLabel2.textColor = [UIColor grayColor]; 
     sortByLabel2.translatesAutoresizingMaskIntoConstraints = NO; 
     sortByLabel2.font = [UIFont systemFontOfSize:10]; 
     [cell.contentView addSubview:sortByLabel2]; 

     UILabel *sortByLabel3 = [[UILabel alloc]init]; 
     sortByLabel3.text = @"This should work because tableView: cellForRowAtIndexPath:"; 
     sortByLabel3.textAlignment = NSTextAlignmentLeft; 
     sortByLabel3.numberOfLines = 0; 
     sortByLabel3.lineBreakMode = NSLineBreakByWordWrapping; 
     sortByLabel3.textColor = [UIColor grayColor]; 
     sortByLabel3.translatesAutoresizingMaskIntoConstraints = NO; 
     sortByLabel3.font = [UIFont systemFontOfSize:10]; 
     [cell.contentView addSubview:sortByLabel3]; 

     UILabel *sortByLabel4 = [[UILabel alloc]init]; 
     sortByLabel4.text = @"then in your tableView: in your viewDidAppearthen in your tableView: cellForRowAtIndexPath: update this variable like your new height and then reload the [self.yourTable reloadData] in your viewDidAppearthen in your tableView: cellForRowAtIndexPath: update this variable like your new height and then reload the [self.yourTable reloadData] in your viewDidAppear:"; 
     sortByLabel4.textAlignment = NSTextAlignmentLeft; 
     sortByLabel4.numberOfLines = 0; 
     sortByLabel4.lineBreakMode = NSLineBreakByWordWrapping; 
     sortByLabel4.textColor = [UIColor grayColor]; 
     sortByLabel4.translatesAutoresizingMaskIntoConstraints = NO; 
     sortByLabel4.font = [UIFont systemFontOfSize:10]; 
     [cell.contentView addSubview:sortByLabel4]; 


     NSDictionary *viewDict1 = NSDictionaryOfVariableBindings(averageRatingLabel); 
     [cell.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-5-[averageRatingLabel]|" options:0 metrics:0 views:viewDict1]]; 
     [cell.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-5-[averageRatingLabel]" options:0 metrics:0 views:viewDict1]]; 

     NSDictionary *viewDict2 = NSDictionaryOfVariableBindings(sortByLabel,averageRatingLabel); 
     [cell.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-5-[sortByLabel]-5-|" options:0 metrics:0 views:viewDict2]]; 
     [cell.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[averageRatingLabel]-5-[sortByLabel]" options:0 metrics:0 views:viewDict2]]; 

     NSDictionary *viewDict3 = NSDictionaryOfVariableBindings(sortByLabel,sortByLabel1); 
     [cell.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-5-[sortByLabel1]-5-|" options:0 metrics:0 views:viewDict3]]; 
     [cell.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[sortByLabel]-5-[sortByLabel1]" options:0 metrics:0 views:viewDict3]]; 

     // 
     NSDictionary *viewDict4 = NSDictionaryOfVariableBindings(sortByLabel1,sortByLabel2); 
     [cell.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-5-[sortByLabel2]-5-|" options:0 metrics:0 views:viewDict4]]; 
     [cell.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[sortByLabel1]-5-[sortByLabel2]" options:0 metrics:0 views:viewDict4]]; 

     // 
     NSDictionary *viewDict5 = NSDictionaryOfVariableBindings(sortByLabel2,sortByLabel3); 


     [cell.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-5-[sortByLabel3]-5-|" options:0 metrics:0 views:viewDict5]]; 
     [cell.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[sortByLabel2]-5-[sortByLabel3]" options:0 metrics:0 views:viewDict5]]; 

     // 
     NSDictionary *viewDict6 = NSDictionaryOfVariableBindings(sortByLabel3,sortByLabel4); 
     [cell.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-5-[sortByLabel4]-5-|" options:0 metrics:0 views:viewDict6]]; 
     [cell.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[sortByLabel3]-5-[sortByLabel4]" options:0 metrics:0 views:viewDict6]]; 

    } 
} 

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 

    static CustomCellTableViewCell *cell = nil; 
    static dispatch_once_t onceToken; 

    dispatch_once(&onceToken, ^{ 

     cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier]; 
    }); 
    [self setUpCell:cell atIndexPath:indexPath]; 

    return [self calculateHeightForConfiguredSizingCell:cell]; 

} 

- (CGFloat)calculateHeightForConfiguredSizingCell:(UITableViewCell *)sizingCell 
{ 

    [sizingCell layoutIfNeeded]; 
    CGSize size = [sizingCell.contentView systemLayoutSizeFittingSize:UILayoutFittingCompressedSize]; 
    return size.height; 

} 


- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath 
{ 

} 


- (void)didReceiveMemoryWarning 
{ 

    [super didReceiveMemoryWarning]; 

} 

@end 

Answer 1

Verwenden Sie den unten stehenden Code, um ce anzupassen lle Höhe

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
switch(indexPath.row){ 
    case:0 
    return 100; 
    break; 

    case:1 
    return 200; 
    break; 
    } 
} 

Je nach Fall Größe Ihrer Zelle Höhe ändern.

Hoffe das hilft dir.

Answer 2

Verwenden Sie diesen Code, um automatisch Zellenhöhe nach Inhaltsgröße anpassen:

- (CGFloat) tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { 
    return UITableViewAutomaticDimension; 
} 

- (CGFloat) tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath { 
    return 300.0f; 
} 

Sie können auch gerne verwenden:

self.tableView.estimatedRowHeight = 300.0; 
self.tableView.rowHeight = UITableViewAutomaticDimension; 

Answer 3

Für dynamische Höhe des Inhalts müssen Sie zuerst Inhaltsgröße berechnen Berechnen Sie dann die Höhe entsprechend dieser Höhe und übergeben Sie diese Höhe an Ihre Tabellenansichtszellenhöhe wie folgt:

-(float) getHeightForText:(NSString*) text withFont:(UIFont*) font andWidth:(float) width{ 
    CGSize constraint = CGSizeMake(width , 20000.0f); 
    CGSize title_size; 
    float totalHeight; 
    SEL selector = @selector(boundingRectWithSize:options:attributes:context:); 
    if ([text respondsToSelector:selector]) {     
     title_size = [text boundingRectWithSize:constraint 
options:NSStringDrawingUsesLineFragmentOrigin 
            attributes:@{ NSFontAttributeName : font } 
             context:nil].size; 
     totalHeight = ceil(title_size.height); 
    } else {     
     title_size = [text sizeWithFont:font 
         constrainedToSize:constraint 
          lineBreakMode:NSLineBreakByWordWrapping];     
     totalHeight = title_size.height ;     
    } 
    CGFloat height = MAX(totalHeight, 40.0f); 
    return height;    
} 

Sichtzelle

Pass this Höhe zu Tisch -

- (CGFloat) tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { 
    return height; 
} 

Answer 4

Meine Ansicht wie diese, aber ich nicht, dass es Priorität als one-by-one bekannt, ein nach-ein oder Kann UIButton zuerst oder zuletzt sein. Nichts repariert es erstellt basierend auf der Antwort des Servers.