我的文字在纵向模式下是两行.当我切换到横向模式时,它适合单行.我通过故事板使用静态tableview单元格;我怎样才能调整行的大小以适应？
屏幕是一个登录屏幕.
>第一个单元格包含一些解释文本
>第二个是用于输入帐户名称的文本字段
>第三个是用于输入密码的安全文本字段
>第四个(也是最后一个)单元格包含登录按钮.键盘上的返回键提交表单或根据需要切换焦点
解决方法
使用UITableView的heightForRowAtIndexPath：
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
int topPadding = 10;
int bottomPadding = 10;
float landscapeWidth = 400;
float portraitWidth = 300;
UIFont *font = [UIFont fontWithName:@"Arial" size:22];
//This is for first cell only if you want for all then remove below condition
if (indexPath.row == 0) // for cell with dynamic height
{
NSString *strText = [[arrTexts objectAtIndex:indexPath.row]; // filling text in label
if(landscape)//depends on orientation
{
CGSize maximumSize = CGSizeMake(landscapeWidth,MAXFLOAT); // change width and height to your requirement
}
else //protrait
{
CGSize maximumSize = CGSizeMake(portraitWidth,MAXFLOAT); // change width and height to your requirement
}
//dynamic height of string depending on given width to fit
CGSize textSize = CGSizeZero;
if(SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7.0")
{
NSMutableParagraphStyle *pstyle = [NSMutableParagraphStyle new];
pstyle.lineBreakMode = NSLineBreakByWordWrapping;
textSize = [[strText boundingRectWithSize:CGSizeMake(width,MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName :font,NSParagraphStyleAttributeName:[pstyle copy]} context:nil] size];
}
else // < (iOS 7.0)
{
textSize = [strText sizeWithFont:font constrainedToSize:maximumSize lineBreakMode:NSLineBreakByWordWrapping]
}
return (topPadding+textSize.height+bottomPadding) // caculate on your bases as u have string height
}
else
{
// return height from the storyboard
return [super tableView:tableView heightForRowAtIndexPath:indexPath];
}
}
