设置pdfpcell动态宽
时间: 2023-09-16 13:12:52 浏览: 34
要设置PDFPCell的动态宽度,可以使用以下步骤:
1. 创建PDFPCell对象时,将宽度设置为0。例如:
```
PdfPCell cell = new PdfPCell(new Phrase("Some text"));
cell.setColspan(2);
cell.setBorder(Rectangle.NO_BORDER);
cell.setPadding(5);
cell.setFixedHeight(40);
cell.setUseAscender(true);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setPhrase(new Phrase("Some dynamically sized text"));
cell.setBorder(Rectangle.BOX);
cell.setBorderWidth(1);
cell.setBorderColor(BaseColor.BLACK);
cell.setPadding(5);
cell.setUseAscender(true);
cell.setHorizontalAlignment(Element.ALIGN_LEFT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setMinimumHeight(30);
```
2. 在生成表格时,使用setTotalWidth()方法设置表格的总宽度。例如:
```
float[] columnWidths = {1f, 2f, 1f};
PdfPTable table = new PdfPTable(columnWidths);
table.setWidthPercentage(100);
table.setTotalWidth(PageSize.A4.getWidth() - 72);
```
3. 在设置单元格内容后,使用cell.getWidthPoint()方法获取单元格的实际宽度,并将其设置为单元格的宽度。例如:
```
cell.setPhrase(new Phrase("Some dynamically sized text"));
cell.setBorder(Rectangle.BOX);
cell.setBorderWidth(1);
cell.setBorderColor(BaseColor.BLACK);
cell.setPadding(5);
cell.setUseAscender(true);
cell.setHorizontalAlignment(Element.ALIGN_LEFT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setMinimumHeight(30);
float cellWidth = cell.getWidthPoint();
cell.setFixedWidth(cellWidth);
```
这样,PDFPCell就可以根据其内容自动调整其宽度。