如何解决在xcode中重新加载表格视图
| 我的应用程序中有一个带有按钮和表格视图的文本框。在此表格视图中,我正在创建将显示一些图像的图像视图。现在,当我在文本框中输入数字说5时,然后单击按钮再按5图像显示在表格视图中,其中第一行显示4张图像。现在出现的问题是,如果我输入的数字小于5,则说3,那么我只需要在表格视图中获得3张图像,但仍然获得5张图像如果我输入的数字多于5,则我在表格视图上得到所需的数字。我的代码是:-if([imageArray count] >0)
{
[imageArray removeAllObjects];
}
int j = [text.text intValue];
for(int i=0;i<j;i++)
{
[imageArray addobject:[UIImage imageNamed:[Nsstring stringWithFormat:@\"%d.png\",i]]];
}
[tableView reloadData];
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 5;
}
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static Nsstring *CellIdentifier = @\"Cell\";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
}
if(indexPath.row == 0)
{
UIImageView *imageView1 = [[UIImageView alloc] initWithFrame:CGRectMake(0,5,100,125)];
if([imageArray count]>0)
{
imageView1.image=[UIImage imageNamed:@\"CARRY.png\"];
imageView1.image = [imageArray objectAtIndex:0];
[cell.contentView addSubview:imageView1];
[imageView1 release];
}
if([imageArray count]>1)
{
UIImageView *imageView2 = [[UIImageView alloc] initWithFrame:CGRectMake(150,125)];
imageView2.image = [imageArray objectAtIndex:1];
[imageView2 addSubview:button6];
[cell.contentView addSubview:imageView2];
[imageView2 release];
}
if([imageArray count]>2)
{
UIImageView *imageView3 = [[UIImageView alloc] initWithFrame:CGRectMake(310,125)];
imageView3.image = [imageArray objectAtIndex:2];
[cell.contentView addSubview:imageView3];
[imageView3 release];
}
if([imageArray count]>3)
{
UIImageView *imageView4 = [[UIImageView alloc] initWithFrame:CGRectMake(460,125)];
imageView4.image = [imageArray objectAtIndex:3];
[cell.contentView addSubview:imageView4];
[imageView4 release];
}
}
else if(indexPath.row == 1)
{
if([imageArray count]>4)
{
UIImageView *imageView5 = [[UIImageView alloc] initWithFrame:CGRectMake(0,125)];
imageView5.image = [imageArray objectAtIndex:4];
[cell.contentView addSubview:imageView5];
[imageView5 release];
}
if([imageArray count]>5)
{
UIImageView *imageView6 = [[UIImageView alloc] initWithFrame:CGRectMake(150,125)];
imageView6.image = [imageArray objectAtIndex:5];
[cell.contentView addSubview:imageView6];
[imageView6 release];
}
if([imageArray count]>6)
{
UIImageView *imageView7= [[UIImageView alloc] initWithFrame:CGRectMake(310,125)];
imageView7.image = [imageArray objectAtIndex:6];
[cell.contentView addSubview:imageView7];
[imageView7 release];
}
if([imageArray count]>7)
{
UIImageView *imageView8 = [[UIImageView alloc] initWithFrame:CGRectMake(460,125)];
imageView8.image = [imageArray objectAtIndex:7];
[cell.contentView addSubview:imageView8];
[imageView8 release];
}
}
else if(indexPath.row == 2)
{
if([imageArray count]>8)
{
UIImageView *imageView8 = [[UIImageView alloc] initWithFrame:CGRectMake(0,125)];
imageView8.image = [imageArray objectAtIndex:8];
[cell.contentView addSubview:imageView8];
[imageView8 release];
}
if([imageArray count]>9)
{
UIImageView *imageView8 = [[UIImageView alloc] initWithFrame:CGRectMake(150,125)];
imageView8.image = [imageArray objectAtIndex:9];
[cell.contentView addSubview:imageView8];
[imageView8 release];
}
}
return cell;
}
我正在清理数组并再次向其中添加图像,然后重新加载表格视图,但是为什么输出却没有根据需要而来。请帮助。
谢谢,
克里斯蒂
解决方法
问题在于您要添加图像视图,但不会删除先前添加的图像视图,以防重复使用单元格。
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