Question

我正在尝试在UITextView中显示存储在数组中的彩色文本。 NSAttributedStrings通常有效，但我想在新行中显示每个objectAtIndex项并更改文本的颜色。这是我的代码，它显示奇怪的输出：

<?php
$options = array(
    "header" => "assets/config_header.php", 
    "color" => "assets/config_header5.php", 
    "headline" => "assets/config_header1.php", 
    "color1" => "assets/config_header6.php", 
    "subhead" => "assets/config_header2.php", 
    "color2" => "assets/config_header7.php", 
    "prodname" => "assets/config_header3.php", 
    "vivid" => "assets/config_header3.php"
);

foreach ($options as $key => $file) {
    if($_POST[$key]) {
        if(isset($_POST[$key]) && trim($_POST[$key]) != ""){
            $fp = fopen($file, 'w');
            fwrite($fp, '<?php');
            fwrite($fp, ' ');
            fwrite($fp, '$' . $key . ' = "'.trim($_POST[$key]).'";');
            fwrite($fp, ' ');
            fwrite($fp, '?>');
            fclose($fp);
            break;
        }
    }
}

循环通过一个数组来检查标志＆＃34; - ＆＃34; ＆安培; ＆＃34; +＆＃34;
根据＆＃34; - ＆＃34;分配颜色; ＆安培; ＆＃34; +＆＃34;
在UITextView中显示属性字符串

实际UITextView中的奇怪输出是：

NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] init];

for (NSString *str in self.tvInputArray){

    if ([str containsString:@"-"] ) {

        NSAttributedString *atrString = [[NSAttributedString alloc]initWithString:[NSString stringWithFormat:@"%@\n",str] attributes:@{NSForegroundColorAttributeName: [UIColor redColor]}];

        [attributedString appendAttributedString:atrString];
    }

    else if ([str containsString:@"+"] ) {

        NSAttributedString *atrString2 = [[NSAttributedString alloc]initWithString:[NSString stringWithFormat:@"%@\n",str] attributes:@{NSForegroundColorAttributeName: [UIColor blueColor]}];

        [attributedString appendAttributedString:atrString2];
    }
}

[selectedItemsTV setText:[NSString stringWithFormat:@"%@", attributedString]];

有人能指出正确的方向吗？

Answer 1

知道了，我忘了把它作为属性字符串传递给UITextView：

 [selectedItemsTV setAttributedText:attributedString];

希望这会对某人有所帮助

NSAttributedString每行的新颜色（来自数组的字符串）

1 个答案: