PieChart center Attributed Text

[laoSanDr]

To join in the string "\ n", how to make the second line words also centered

[liuxuan30]

Attributed Text should already support it, have you tried?

[laoSanDr]

 NSMutableParagraphStyle *paragraphStyle = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
    paragraphStyle.lineBreakMode = NSLineBreakByTruncatingTail;
    paragraphStyle.alignment = NSTextAlignmentCenter;

NSMutableAttributedString *centerText = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"%@\n%@", str, str2]];
    [centerText setAttributes:@{
                                NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue-Light" size:14.f],
                                NSParagraphStyleAttributeName: paragraphStyle
                                } range:NSMakeRange(0, str.length)];
    [centerText addAttributes:@{
                                NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue-Light" size:17.f],
                                NSForegroundColorAttributeName: UIColor.grayColor
                                } range:NSMakeRange(centerText.length - str2.length , str2.length)];
    chartView.centerAttributedText = centerText;

This is my code.The first line is centered, but the second line is on the left.

[liuxuan30]

I think this can be search or posted on Stack Overflow if you run into detail evils
But ChartsDemo pie chart center text works just fine:

    NSMutableParagraphStyle *paragraphStyle = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
    paragraphStyle.lineBreakMode = NSLineBreakByTruncatingTail;
    paragraphStyle.alignment = NSTextAlignmentCenter;
    
    NSMutableAttributedString *centerText = [[NSMutableAttributedString alloc] initWithString:@"Charts ABCDASDFEFG\nby Daniel"];
    [centerText setAttributes:@{
                                NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue-Light" size:13.f],
                                NSParagraphStyleAttributeName: paragraphStyle
                                } range:NSMakeRange(0, centerText.length)];
    [centerText addAttributes:@{
                                NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue-Light" size:11.f],
                                NSForegroundColorAttributeName: UIColor.grayColor
                                } range:NSMakeRange(10, centerText.length - 10)];
    [centerText addAttributes:@{
                                NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue-LightItalic" size:11.f],
                                NSForegroundColorAttributeName: [UIColor colorWithRed:51/255.f green:181/255.f blue:229/255.f alpha:1.f]
                                } range:NSMakeRange(centerText.length - 19, 19)];
    chartView.centerAttributedText = centerText;