64 lines
1.8 KiB
Objective-C
64 lines
1.8 KiB
Objective-C
//
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// MSRTL.m
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// YuMi
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//
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// Created by duoban on 2024/4/15.
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//
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#import "YYLabel+MSRTL.h"
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#import "NSMutableAttributedString+MSRTL.h"
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BOOL isRTLString(NSString *string) {
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if ([string hasPrefix:@"\u202B"]) {
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return YES;
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}
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return NO;
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}
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@implementation YYLabel (MSRTL)
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+ (void)load {
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Method oldTextMethod = class_getInstanceMethod(self,@selector(setAttributedText:));
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Method newTextMethod = class_getInstanceMethod(self, @selector(msrtl_setAttributedText:));
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method_exchangeImplementations(oldTextMethod, newTextMethod); //交换成功
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}
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-(void)msrtl_setAttributedText:(NSAttributedString *)attributedText{
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if(attributedText == nil)return;
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NSMutableAttributedString * attributedString = [[NSMutableAttributedString alloc]init];
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if(self.textAlignment == NSTextAlignmentCenter){
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if (isMSRTL()) {
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[attributedString appendAttributedString:[NSMutableAttributedString createBlankAttributeToMSRTL]];
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// [attributedString appendAttributedString:[NSMutableAttributedString createBlankAttributeToMSLTR]];
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}
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[attributedString appendAttributedString:attributedText];
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[self msrtl_setAttributedText:attributedString];
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return;
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}
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if (isMSRTL()) {
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[attributedString appendAttributedString:[NSMutableAttributedString createBlankAttributeToMSRTL]];
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// [attributedString appendAttributedString:[NSMutableAttributedString createBlankAttributeToMSLTR]];
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}
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[attributedString appendAttributedString:attributedText];
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[self msrtl_setAttributedText:attributedString];
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if(isMSRTL()){
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self.textAlignment = NSTextAlignmentRight;
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}else{
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if (self.textAlignment == NSTextAlignmentNatural) {
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self.textAlignment = NSTextAlignmentLeft;
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}
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}
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}
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@end
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