NSMutableParagraphStyle /NSParagraphStyle 文本属性Attributes
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- typedef NS_ENUM(NSInteger, NSLineBreakMode) {/* What to do with long lines */
- NSLineBreakByWordWrapping = 0, /* Wrap at word boundaries, default */
- NSLineBreakByCharWrapping,/* Wrap at character boundaries */
- NSLineBreakByClipping,/* Simply clip */剪掉后面显示不了的部分
- NSLineBreakByTruncatingHead,/* Truncate at head of line: "...wxyz" */头部分的内容以……方式省略
- NSLineBreakByTruncatingTail,/* Truncate at tail of line: "abcd..." */结尾部分的内容以……方式省略
- NSLineBreakByTruncatingMiddle/* Truncate middle of line: "ab...yz" */中间部分的内容以……方式省略
- } NS_ENUM_AVAILABLE_IOS(6_0);
- typedef NS_ENUM(NSInteger, NSWritingDirection) {
- NSWritingDirectionNatural = -1, // Determines direction using the Unicode Bidi Algorithm rules P2 and P3
- NSWritingDirectionLeftToRight = 0, // Left to right writing direction 左到右的书写方向
- NSWritingDirectionRightToLeft = 1 // Right to left writing direction 右到左的书写方向
- } NS_ENUM_AVAILABLE_IOS(6_0);
- // NSParagraphStyleAttributeName 段落的风格(设置首行,行间距,对齐方式什么的)看自己需要什么属性,写什么
- NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
- paragraphStyle.lineSpacing = 10;// 字体的行间距
- paragraphStyle.firstLineHeadIndent = 20.0f;//首行缩进
- paragraphStyle.alignment = NSTextAlignmentJustified;//(两端对齐的)文本对齐方式:(左,中,右,两端对齐,自然)
- paragraphStyle.lineBreakMode = NSLineBreakByTruncatingTail;//结尾部分的内容以……方式省略 ( "...wxyz" ,"abcd..." ,"ab...yz")
- paragraphStyle.headIndent = 20;//整体缩进(首行除外)
- paragraphStyle.tailIndent = 20;//
- paragraphStyle.minimumLineHeight = 10;//最低行高
- paragraphStyle.maximumLineHeight = 20;//最大行高
- paragraphStyle.paragraphSpacing = 15;//段与段之间的间距
- paragraphStyle.paragraphSpacingBefore = 22.0f;//段首行空白空间/* Distance between the bottom of the previous paragraph (or the end of its paragraphSpacing, if any) and the top of this paragraph. */
- paragraphStyle.baseWritingDirection = NSWritingDirectionLeftToRight;//从左到右的书写方向(一共➡️三种)
- paragraphStyle.lineHeightMultiple = 15;/* Natural line height is multiplied by this factor (if positive) before being constrained by minimum and maximum line height. */
- paragraphStyle.hyphenationFactor = 1;//连字属性 在iOS,唯一支持的值分别为0和1
- /*
- NSFontAttributeName 字体大小
- NSParagraphStyleAttributeName 段落的风格(设置首行,行间距,对齐方式什么的)
- NSKernAttributeName 字间距
- */
- NSDictionary *attributes = @{
- NSFontAttributeName:[UIFont systemFontOfSize:15],
- NSParagraphStyleAttributeName:paragraphStyle,
- NSKernAttributeName:@(10),
- };
- textView.attributedText = [[NSAttributedString alloc] initWithString:textView.text attributes:attributes];
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