在Android EasyExcel中处理复杂表头可以通过自定义表头样式来实现。以下是一个示例代码来处理复杂表头：
// 创建Excel表格ExcelWriter excelWriter = new ExcelWriter("path/to/excel/file.xlsx");// 创建表头样式WriteCellStyle headCellStyle = new WriteCellStyle();headCellStyle.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.getIndex());headCellStyle.setFillPatternType(FillPatternType.SOLID_FOREGROUND);WriteFont headFont = new WriteFont();headFont.setFontHeightInPoints((short) 12);headCellStyle.setWriteFont(headFont);// 创建Sheet对象WriteSheet writeSheet = EasyExcel.writerSheet("Sheet1") .registerWriteHandler(new CellWriteHandler() { @Override public void beforeCellCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, CellData cellData, Cell cell, Head head, Integer integer, Integer integer1, Boolean aBoolean) { // 自定义表头样式 if (head.getHeadNameList().contains("header1")) { cell.setCellStyle(headCellStyle); } } @Override public void afterCellCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, CellData cellData, Cell cell, Head head, Integer integer, Boolean aBoolean) { } @Override public void afterCellDataCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, List<CellData> list, Cell cell, Head head, Integer integer, Boolean aBoolean) { } }) .build();// 写入数据List<List<String>> head = new ArrayList<>();head.add(Arrays.asList("header1", "header2", "header3"));List<List<String>> data = new ArrayList<>();data.add(Arrays.asList("data1", "data2", "data3"));excelWriter.write(head, data, writeSheet);// 关闭ExcelWriterexcelWriter.finish();在上面的代码中，我们创建了一个自定义的表头样式headCellStyle，并将其应用到指定的表头列上。通过实现CellWriteHandler接口，可以在写入Excel表格时进行定制化处理，以处理复杂的表头结构。
