RtzX / EditAndPublishArticle

EditAndPublishArticle( 文章编辑)

EditAndPublishArticle

##发表文章

删除之前的版本,从新新建一个库,适配iOS10

##主要代码

image=[imageTextAttachment scaleImage:image withSize:CGSizeMake(WIDTH - 30,image_h)];

//Set tag and image
imageTextAttachment.image =image;

imageTextAttachment.imageSize = CGSizeMake(WIDTH - 30,image_h);

NSMutableAttributedString * string = [[NSMutableAttributedString alloc] initWithAttributedString:self.messageInputView.attributedText];
NSAttributedString  *textAttachmentString = [NSAttributedString attributedStringWithAttachment:imageTextAttachment];

NSAttributedString *nString = [[NSAttributedString alloc] initWithString:@"\n" attributes:nil];
[string insertAttributedString:nString atIndex:self.messageInputView.selectedRange.location];
[string insertAttributedString:textAttachmentString atIndex:self.messageInputView.selectedRange.location + 1];
[string insertAttributedString:nString atIndex:self.messageInputView.selectedRange.location + 2];

##选择好的照片保存到沙盒 ##保存图片至沙盒

- (void)saveImage:(UIImage *)tempImage WithName:(NSString *)imaName

{ //压缩图片 self.imageData = UIImageJPEGRepresentation(tempImage, 0.5);

//从沙盒中获取文件路径
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString* documentsDirectory = [paths objectAtIndex:0];
NSString* fullPathToFile = [documentsDirectory stringByAppendingPathComponent:imaName];
//图片流写入沙盒
BOOL flag =[self.imageData writeToFile:fullPathToFile atomically:YES];
if (flag) {
    NSLog(@"图片保存到沙盒成功");
  }

}

每次输入完处理输入的内容和图片

-(void)setStyle

{ //每次后拼装 if (self.messageInputView.textStorage.length<self.location) { [self setInitLocation]; return; } NSString * str=[self.messageInputView.text substringFromIndex:self.location];

NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
paragraphStyle.lineSpacing = self.lineSapce;// 字体的行间距
NSDictionary *attributes=nil;
attributes = @{
               NSFontAttributeName:[UIFont systemFontOfSize:14],
               NSForegroundColorAttributeName:kUIColorFromRGB(0x666666),
               NSParagraphStyleAttributeName:paragraphStyle
               };

NSAttributedString * appendStr=[[NSAttributedString alloc] initWithString:str attributes:attributes];
[self.locationStr appendAttributedString:appendStr];
self.messageInputView.attributedText =self.locationStr;

//重新设置位置
self.location=self.messageInputView.textStorage.length;

}

##每次插入图片后，重新计算光标位置 ###-(void)setInitLocation { self.locationStr=nil; self.locationStr=[[NSMutableAttributedString alloc]initWithAttributedString:self.messageInputView.attributedText]; self.messageInputView.font = [UIFont systemFontOfSize:20]; self.messageInputView.textColor = [UIColor redColor]; //重新设置位置 self.location=self.messageInputView.textStorage.length; }