Question

我正在iphone中做一个阅读器应用程序，有一个叫做低光视图的按钮（夜间模式），当用户点击按钮时，它自动选择视图的背景，我的阅读器视图是tableview，我有两个tableview in一个视图，两个tableview显示不同的内容，我知道如何在按钮单击中更改tableview的背景，我使用此代码。

 table1st.backgroundColor = [UIColor blackColor];
    table2nd.backgroundColor = [UIColor blackColor];

当用户点击按钮时，它会改变tableview的背景，我的问题是

在用户点击后更改背景后，它会显示两个tableviews的黑色背景，但是当用户重定向到应用程序的另一个视图并返回到阅读器视图时，它会自动将背景更改为默认值（我的默认值是clear-color，我在tableview单元格属性中设置它。）我不想这样。
当第一个tableview开始滚动时，它会变为默认背景，但是在第二个tableview的情况下，没有问题，当滚动时，它没有改变默认状态。
最后一个问题是如何使用tableviews的背景更改来更改tableview单元格的文本标签颜色，并且我在两个tableview单元格中都有一个标签，标签中也有一些文本，i想要将标签的颜色更改为白色，也像文本标签颜色一样。

我如何解决这些问题？请帮助我。提前谢谢。

编辑：

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


   static NSString *CellIdentifier = @"Cell";

    readCell *cell = (readCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"readCell" owner:self options:nil]; 
        cell = [nib objectAtIndex:0]; 
        cell.malayalamVerse.hidden = YES;
        cell.malayalamVerse.backgroundColor = [UIColor clearColor];
        self.table.tableFooterView = _btnTablemoreview;
        self.table.tableFooterView.userInteractionEnabled = YES;

    }

    /*table.separatorColor = [UIColor clearColor];
    [cell setBackgroundColor:[UIColor colorWithRed:177 green:148 blue:106 alpha:1]];
    cell.chapterAndVerse.text = [NSString stringWithFormat:@"%@.%d ",delegate.selectedChapter,indexPath.row+1];
    cell.textLabel.font = [UIFont fontWithName:@"Georgia" size:16];
    UIFont *fnt = [UIFont fontWithName:@"Georgia" size:16];
    CGSize textSize;
    if([[delegate.allSelectedVerseMalayalam objectAtIndex:indexPath.row] sizeWithZFont:[[FontManager sharedManager] zFontWithName:@"testfont" pointSize:17] constrainedToSize:CGSizeMake(220,1000)  lineBreakMode:UILineBreakModeWordWrap].height > [[delegate.allSelectedVerseEnglish objectAtIndex:indexPath.row] sizeWithFont:fnt    constrainedToSize:CGSizeMake(220,1000)  lineBreakMode:UILineBreakModeWordWrap].height)
    {
        textSize = [[delegate.allSelectedVerseMalayalam objectAtIndex:indexPath.row] sizeWithZFont:[[FontManager sharedManager] zFontWithName:@"testfont" pointSize:17] constrainedToSize:CGSizeMake(220,1000)  lineBreakMode:UILineBreakModeWordWrap];
    }
    else
    {
        textSize = [[delegate.allSelectedVerseEnglish objectAtIndex:indexPath.row] sizeWithFont:fnt constrainedToSize:CGSizeMake(220,1000)  lineBreakMode:UILineBreakModeWordWrap];
    }*/


    if(tableView == table)
    {
        UIView *myBackView = [[UIView alloc] initWithFrame:cell.frame];
       // myBackView.backgroundColor = [UIColor colorWithRed:250.0 green:248.0 blue:192.0 alpha:1.0];
        [myBackView setBackgroundColor:[UIColor clearColor]];
        cell.selectedBackgroundView = myBackView;
        [myBackView release];


        cell.textLabel.highlightedTextColor = [UIColor colorWithRed:1 green:1 blue:0.75 alpha:1];
        table.backgroundColor = [UIColor clearColor];
        table.separatorColor = [UIColor clearColor];
        cell.chapterAndVerse.text = [NSString stringWithFormat:@"%@.%d ",delegate.selectedChapter, indexPath.row+1];
        cell.chapterAndVerse.backgroundColor= [UIColor whiteColor];
        cell.chapterAndVerse.textColor = [UIColor brownColor];
        cell.chapterAndVerse.font = [UIFont fontWithName:@"Georgia" size:14.0];
        cell.chapterAndVerse.frame=CGRectMake(33, 6, 30.0, 12.0);
        cell.textLabel.text =  [NSString stringWithFormat:@"            %@",[delegate.allSelectedVerseEnglish objectAtIndex:indexPath.row]];
        cell.textLabel.font = [UIFont fontWithName:@"Georgia" size:15];
        cell.textLabel.textColor = [UIColor darkGrayColor];
        cell.textLabel.lineBreakMode = UILineBreakModeWordWrap;
        cell.textLabel.numberOfLines = 0;
        cell.backgroundColor = [UIColor clearColor];

        return cell;
    }


    else if(tableView == tab)
    {

        UIView *myBackView = [[UIView alloc] initWithFrame:cell.frame];
        // myBackView.backgroundColor = [UIColor colorWithRed:250.0 green:248.0 blue:192.0 alpha:1.0];
        [myBackView setBackgroundColor:[UIColor clearColor]];
        cell.selectedBackgroundView = myBackView;
        [myBackView release];


        cell.textLabel.highlightedTextColor = [UIColor colorWithRed:1 green:1 blue:0.75 alpha:1];
        cell.malayalamVerse.hidden = YES;
        cell.malayalamVerse.backgroundColor = [UIColor clearColor];
       // tab.backgroundColor = [UIColor clearColor];
        tab.separatorColor = [UIColor clearColor];
        cell.chapterAndVerse.frame = CGRectMake(0, 0,30.0,12.0);
        cell.chapterAndVerse.text = [NSString stringWithFormat:@"%@.%d ",delegate.selectedChapter, indexPath.row+1];
        cell.chapterAndVerse.backgroundColor= [UIColor whiteColor];
        cell.chapterAndVerse.textColor = [UIColor brownColor];
        cell.chapterAndVerse.font = [UIFont systemFontOfSize:7.0];
        cell.textLabel.text =  [NSString stringWithFormat:@"            %@",[delegate.allSelectedVerseHindi objectAtIndex:indexPath.row]];
        cell.textLabel.font = [UIFont fontWithName:@"Georgia" size:15];
        cell.textLabel.textColor = [UIColor darkGrayColor];
        cell.textLabel.lineBreakMode = UILineBreakModeWordWrap;
        cell.textLabel.numberOfLines = 0;
        cell.backgroundColor = [UIColor clearColor];


    }





   return cell; 

}

读取单元格是我在xib中开发的tableview单元格，它打破了我想要更改fontcolor的标签。

如何更改视图的背景？

0 个答案: