iOS PDF文件生成

1.把scrollView上面的内容生成PDF文件，代码如下：

- (NSString *)createPDF {

 NSDate*printTime = [NSDatedate];

NSString*fileName = [NSStringstringWithFormat:@"%@_%@_%@.pdf",self.user.real_name,self.title, [self.dateHourMinuteFormatterstringFromDate:printTime]];

    NSURL*storeURL = [selfbuildStoreURLForFileName:fileName];

    NSString*storePath = storeURL.path;

    CGFloatcontentViewWidth =CGRectGetWidth(self.scrollView.frame);

    CGFloatcontentViewHeight =CGRectGetHeight(self.scrollView.frame);

    CGFloatpageWidth = contentViewWidth;

    CGFloatpageHeight = contentViewHeight +143.f;

    UIGraphicsBeginPDFContextToFile(storePath,CGRectMake(0,0, pageWidth, pageHeight),nil);

NSString*dateText = [NSStringstringWithFormat:@"%@ (%d%@)",self.dataSelectView.label.text, (int)self.daysCount, (self.daysCount>1) ?MyLocalizedString(@"unit.days",nil) :MyLocalizedString(@"unit.day",nil)];

    NSDictionary*pdmSettings = (NSDictionary*)self.user.settings.pdmSettings;

    NSString*pdmSN =@"";

    if([pdmSettingsobjectForKey:@"PDMSN"]) {

        pdmSN = [AppDelegatetransformSerialString:[pdmSettingsobjectForKey:@"PDMSN"]];

    }

    NSString*pumpBaseSN =@"";

    if([pdmSettingsobjectForKey:@"PumpBaseSN"]) {

        pumpBaseSN = [AppDelegatetransformSerialString:[pdmSettingsobjectForKey:@"PumpBaseSN"]];

    }

    NSString*transmitterSN =@"";

    if([pdmSettingsobjectForKey:@"TransmitterSN"]) {

        transmitterSN = [AppDelegatetransformSerialString:[pdmSettingsobjectForKey:@"TransmitterSN"]];

    }

    NSUIntegerpageCount =0;

    CGFloatsumWidth = contentViewWidth;

    CGFloatsumHeight = contentViewHeight;

    CGFloatheaderViewHight =0;

    for(UIView*iteminself.scrollView.subviews) {

        if(![itemisKindOfClass:[UIImageViewclass]]) {

            for(UIView*viewinitem.subviews) {

                if(pageCount ==0||CGRectGetMaxX(view.frame) > sumWidth ||CGRectGetMaxY(view.frame) > sumHeight) {

                    pageCount++;

                    if(CGRectGetMaxX(view.frame) > sumWidth) {

                        sumWidth += contentViewWidth;

                    }

                    if(CGRectGetMaxY(view.frame) > sumHeight) {

                        sumHeight += contentViewHeight;

                    }

                    UIGraphicsBeginPDFPage();

                    headerViewHight = [selfcreateHeaderViewWithWidth:pageWidthdateText:dateTextname:self.user.real_namepdmSN:pdmSNpumpBaseSN:pumpBaseSNtransmitterSN:transmitterSN];

                    [self createFooterViewWithWidth:pageWidth height:(pageHeight - 35) name:self.myDelegate.user.real_name ? self.myDelegate.user.real_name : self.myDelegate.user.username pageNumber:(unsigned int)pageCount printTime:printTime];

                }

                UIGraphicsBeginImageContextWithOptions(view.bounds.size, NO, 0.0);

                [view.layer renderInContext:UIGraphicsGetCurrentContext()];

                UIImage *image = UIGraphicsGetImageFromCurrentImageContext();

                image = [selfadjustColor:image];

                UIGraphicsEndImageContext();

                [imagedrawInRect:CGRectMake(CGRectGetMinX(view.frame) - sumWidth + contentViewWidth,CGRectGetMinY(view.frame) + headerViewHight - sumHeight + contentViewHeight,CGRectGetWidth(view.frame),CGRectGetHeight(view.frame))];

            }

        }

    }

    UIGraphicsEndPDFContext();

    returnstorePath;

}

2.把tableView上面的内容生成PDF文件，代码如下：

#pragma mark- Create PDF

- (NSString *)createPDF {

    NSDate*printTime = [NSDatedate];

    NSString*fileName = [NSStringstringWithFormat:@"%@_%@_%@.pdf",self.user.real_name,self.title, [self.dateHourMinuteFormatterstringFromDate:printTime]];

    NSURL*storeURL = [selfbuildStoreURLForFileName:fileName];

    NSString*storePath = storeURL.path;

    CGFloatlayoutConstraintConstant =self.tableViewHeightConstraint.constant;

    self.tableViewHeightConstraint.constant=self.tableView.contentSize.height-CGRectGetHeight(self.tableView.frame) + layoutConstraintConstant;

    [self.tableView reloadData];

    CGFloatpageWidth =self.tableView.contentSize.width;

//    CGFloat pageHeight = self.tableView.contentSize.height + 143.f;

    CGFloatpageHeight =self.tableView.sectionHeaderHeight+31*self.tableView.rowHeight+143.f;

    UIGraphicsBeginPDFContextToFile(storePath,CGRectMake(0,0, pageWidth, pageHeight),nil);

    NSString*dateText = [NSStringstringWithFormat:@"%@ (%d%@)",self.dataSelectView.label.text, (int)self.daysCount, (self.daysCount>1) ?MyLocalizedString(@"unit.days",nil) :MyLocalizedString(@"unit.day",nil)];

    NSDictionary*pdmSettings = (NSDictionary*)self.user.settings.pdmSettings;

    NSString*pdmSN =@"";

    if([pdmSettingsobjectForKey:@"PDMSN"]) {

        pdmSN = [AppDelegatetransformSerialString:[pdmSettingsobjectForKey:@"PDMSN"]];

    }

    NSString*pumpBaseSN =@"";

    if([pdmSettingsobjectForKey:@"PumpBaseSN"]) {

        pumpBaseSN = [AppDelegatetransformSerialString:[pdmSettingsobjectForKey:@"PumpBaseSN"]];

    }

    NSString*transmitterSN =@"";

    if([pdmSettingsobjectForKey:@"TransmitterSN"]) {

        transmitterSN = [AppDelegatetransformSerialString:[pdmSettingsobjectForKey:@"TransmitterSN"]];

    }

    NSUIntegerpageCount =0;

    CGFloatcontentHeight =0;

    CGFloatoffsetY =0;

    do{

        pageCount ++;

        UIGraphicsBeginPDFPage();

        CGFloatheaderViewHight = [selfcreateHeaderViewWithWidth:pageWidthdateText:dateTextname:self.user.real_namepdmSN:pdmSNpumpBaseSN:pumpBaseSNtransmitterSN:transmitterSN];

        [self createFooterViewWithWidth:pageWidth height:(pageHeight - 35) name:self.myDelegate.user.real_name ? self.myDelegate.user.real_name : self.myDelegate.user.username pageNumber:(unsigned int)pageCount printTime:printTime];

        UIGraphicsBeginImageContextWithOptions(self.tableView.contentSize, NO, 0.0);

        [self.tableView.layer renderInContext:UIGraphicsGetCurrentContext()];

        UIImage *image = UIGraphicsGetImageFromCurrentImageContext();

        CGFloatscale = [UIScreenmainScreen].scale;

        offsetY += contentHeight;

        if(pageCount ==1) {

            contentHeight =self.tableView.sectionHeaderHeight+31*self.tableView.rowHeight;

        }elseif(pageCount ==2) {

            contentHeight =32*self.tableView.rowHeight;

        }elseif(pageCount ==3) {

            contentHeight =30*self.tableView.rowHeight;

        }

        CGImageRefimageRef =CGImageCreateWithImageInRect(image.CGImage,CGRectMake(0, offsetY * scale, image.size.width* scale, contentHeight * scale));

        image = [UIImageimageWithCGImage:imageRef];

        CGImageRelease(imageRef);

        UIGraphicsEndImageContext();

        [imagedrawInRect:CGRectMake(CGRectGetMinX(self.tableView.frame), headerViewHight, image.size.width/ scale, image.size.height/ scale)];

    }while(pageCount *30<self.daysCount);

    UIGraphicsEndPDFContext();

    self.tableViewHeightConstraint.constant= layoutConstraintConstant;

    returnstorePath;

}

2.把UIView上面的内容生成PDF文件，代码如下：

#pragma mark- Create PDF

- (NSString *)createPDF {

    if (self.contentView.subviews.lastObject == nil || self.contentView.subviews.lastObject.subviews.count == 0) {

        returnnil;

    }

    if (![self.contentView.subviews.lastObject.subviews.lastObject isKindOfClass:[UIScrollView class]]) {

        returnnil;

    }

    NSDate*printTime = [NSDatedate];

    NSString*fileName = [NSStringstringWithFormat:@"%@_%@_%@.pdf",self.patientRealName,self.title, [self.dateHourMinuteFormatterstringFromDate:printTime]];

    NSURL*storeURL = [selfbuildStoreURLForFileName:fileName];

    NSString*storePath = storeURL.path;

    NSDictionary*pdmSettings =self.pdmSettings;

    NSString*createdTimeStr =@"";

    if([pdmSettingsobjectForKey:@"CreatedTime"]) {

        createdTimeStr = [self.dateTimeFormatterstringFromDate:[pdmSettingsobjectForKey:@"CreatedTime"]];

    }

    NSString*pdmSN =@"";

    if([pdmSettingsobjectForKey:@"PDMSN"]) {

        pdmSN = [AppDelegatetransformSerialString:[pdmSettingsobjectForKey:@"PDMSN"]];

    }

    NSString*pumpBaseSN =@"";

    if([pdmSettingsobjectForKey:@"PumpBaseSN"]) {

        pumpBaseSN = [AppDelegatetransformSerialString:[pdmSettingsobjectForKey:@"PumpBaseSN"]];

    }

    NSString*transmitterSN =@"";

    if([pdmSettingsobjectForKey:@"TransmitterSN"]) {

        transmitterSN = [AppDelegatetransformSerialString:[pdmSettingsobjectForKey:@"TransmitterSN"]];

    }

    [self hideContentController:self.currentViewController];

    UIGraphicsBeginPDFContextToFile(storePath, CGRectZero, nil);

    NSUIntegerpageCount =0;

    for(inti =0; i <4; i++) {

        pageCount ++;

        UIViewController*printViewController;

        switch(i) {

            case1:

                printViewController =self.bolusSettingsViewController;

                break;

            case2:

                printViewController =self.sensorSettingsViewController;

                break;

            case3:

                printViewController =self.utilitiesSettingsViewController;

                break;

            default:

                printViewController =self.basalSettingsViewController;

                break;

        }

        [selfdisplayContentController:printViewController];

        [printViewController.viewlayoutIfNeeded];

        UIScrollView *scrollView = self.contentView.subviews.lastObject.subviews.lastObject;

        CGFloatpageWidth = scrollView.contentSize.width;

        CGFloatpageHeight = scrollView.contentSize.height+143.f;

        UIGraphicsBeginPDFPageWithInfo(CGRectMake(0,0, pageWidth, pageHeight),nil);

        NSString*dateText = [NSStringstringWithFormat:@"%@ %@", [self.segmentedtitleForSegmentAtIndex:i], createdTimeStr];

        CGFloatheaderViewHight = [selfcreateHeaderViewWithWidth:pageWidthdateText:dateTextname:self.patientRealNamepdmSN:pdmSNpumpBaseSN:pumpBaseSNtransmitterSN:transmitterSN];

        [self createFooterViewWithWidth:pageWidth height:(pageHeight - 35) name:self.myDelegate.user.real_name ? self.myDelegate.user.real_name : self.myDelegate.user.username pageNumber:(unsigned int)pageCount printTime:printTime];

        for(UIView*viewinscrollView.subviews) {

            if(![viewisKindOfClass:[UIImageViewclass]]) {

                UIGraphicsBeginImageContextWithOptions(view.bounds.size, NO, 0.0);

                [view.layer renderInContext:UIGraphicsGetCurrentContext()];

                UIImage *image = UIGraphicsGetImageFromCurrentImageContext();

                if(![viewisKindOfClass:[UILabelclass]] && ![viewisKindOfClass:[UITableViewclass]]) {

                    image = [selfadjustColor:image];

                }

                UIGraphicsEndImageContext();

                [imagedrawInRect:CGRectMake(CGRectGetMinX(view.frame), CGRectGetMinY(view.frame) + headerViewHight, CGRectGetWidth(view.frame), CGRectGetHeight(view.frame))];

            }

        }

        [selfhideContentController:printViewController];

    }

    UIGraphicsEndPDFContext();

    [self displayContentController:self.currentViewController];

    returnstorePath;

}