why there is a empty area in the upside of my UITableViewCell? - objective-c

Question

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enter image description here
Hi guys, I need some help to solve problems
i do not know why there is an empty area in my UITableViewCell like in the picture
and when I continnue to drop up the table, the blue UITextView will disappear，then the next cell appears.Anyone know Why?
#implementation TableCellModel
+(UITableViewCell *) getCellOfFreeChampionsList
{
UITableViewCell * tableCell = [[super alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:NULL];
UITextView * textView = [[UITextView alloc] init];
textView.tag = 11;
textView.text = #"1qaz2wsxE";
textView.frame = CGRectMake(5, 5, 70, 20);
textView.backgroundColor = [UIColor blueColor];
[tableCell.contentView addSubview:textView];
// UILabel * la = [[UILabel alloc] init];
// la.frame = CGRectMake(5, 50, 70, 20);
// la.tag = 12;
// [tableCell.contentView addSubview:la];
NSLog(#"%#", textView.text);
NSLog(#"count is %lu", (unsigned long)tableCell.subviews.count);
return tableCell;
}
#implementation TableViewDataSource
#synthesize tableView;
#synthesize tableCell;
#synthesize LHfetchedResultsController;
#synthesize numberOfRows;
#synthesize dataTemp;
#synthesize paused;
-(id)initWithTableView:(UITableView *) tableView
{
self = [super init];
if (self) {
self.tableView = tableView;
self.tableView.dataSource = self;
self.tableView.delegate = self;
}
return self;
}
-(void)dateSourceWithChineseNewestVideos:(NSArray *)videosResults
{
self.dataTemp = videosResults;
self.tableCell = [TableCellModel getCellOfFreeChampionsList];
self.numberOfRows = videosResults.count;
NSInteger n = self.numberOfRows;
if (self.numberOfRows == 0) {
self.numberOfRows = 1;
}
}
-(UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
// [self configCellData:indexPath cell:self.tableCell];
if (self.dataTemp.count < 0) {
NSArray * arr = self.dataTemp;
NSInteger n = arr.count;
NSInteger indexNum = indexPath.row;
ChineseNewestVideos * re1 = [self.dataTemp objectAtIndex:indexNum];
UITextView * textView = [tableCell viewWithTag:11];
textView.text = re1.title;
NSLog(#"text is %lu",(unsigned long)tableCell.subviews.count);
NSLog(#"text is %#",textView.text);
// UILabel * la = [tableCell viewWithTag:12];
// la.text = [NSString stringWithFormat:#"%lD",(long)n];
}
return self.tableCell;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// id<NSFetchedResultsSectionInfo> sectionInfo = self.LHfetchedResultsController.sections[section];
// self.numberOfRows = sectionInfo.numberOfObjects;
return self.numberOfRows;
}

Answer 1

Programmatically:
// Objective-C
self.automaticallyAdjustsScrollViewInsets = NO;
// Swift
self.automaticallyAdjustsScrollViewInsets = false
Using Storyboard:

Answer 2

because i declare UITableViewCell outside of cellForRowAtIndexPath after i move it in it works