UITextView auto expand in UITableView - ios

Question

I have a UITextView at the last row of UITableView. I want to auto expand the UITextView according to the text which is working fine. But as the UITextView expands, the UITableViewCell should also expand. I tried reloadRowsAtIndexPaths in textViewDidChange but that again and again reloads the cell causing the UITextView resignFirstResponder.
This is the code :
- (void)textViewDidChange:(UITextView *)textView
{
CGRect frame = textView.frame;
frame.size.height = textView.contentSize.height;
textView.frame = frame;
[tableMessageDetail beginUpdates];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:(int)txtReplyBottom.tag inSection:0];
[tableMessageDetail reloadRowsAtIndexPaths:#[indexPath] withRowAnimation:UITableViewRowAnimationNone];
[tableMessageDetail endUpdates];
}

Answer 1

Gif
Cell-AutoLayout
I add a height constraint with >= 50
Code
#interface SelfSizingCell ()<UITextViewDelegate>
#property (weak, nonatomic) IBOutlet NSLayoutConstraint *heightConstraint;
#property (weak, nonatomic) IBOutlet UITextView *textview;
#end
#implementation SelfSizingCell
- (void)awakeFromNib {
// Initialization code
self.textview.delegate = self;
self.textview.scrollEnabled = false;
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
-(void)textViewDidChange:(UITextView *)textView{
CGSize size = [textView sizeThatFits:CGSizeMake(CGRectGetWidth(self.frame), CGFLOAT_MAX)];
CGFloat height = size.height;
if (height < 50) {
self.heightConstraint.constant = 50;
}else{
self.heightConstraint.constant = height;
}
[self.tableView beginUpdates];
[self.tableView endUpdates];
}
#end
.h
#interface SelfSizingCell : UITableViewCell
#property (weak,nonatomic)UITableView * tableView;
#end
And tableviewController
#implementation TableViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self.tableView registerNib:[UINib nibWithNibName:#"SelfSizingCell" bundle:nil] forCellReuseIdentifier:#"cell"];
self.tableView.estimatedRowHeight = 50;
self.tableView.rowHeight = UITableViewAutomaticDimension;
self.tableView.tableFooterView = [[UIView alloc] initWithFrame:CGRectZero];
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 1;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
SelfSizingCell *cell = [tableView dequeueReusableCellWithIdentifier:#"cell" forIndexPath:indexPath];
cell.tableView = self.tableView;
return cell;
}