GridLayout绘制复杂表格

标签：android   表格   gridlayout   

项目要求在Android页面绘制复杂表格，有跨行跨列的需求。表格数据来自于服务器，每个单元格对应相关数据：序号（index）、行号（row）、列号（col）、跨行数（rowSpan）、跨列数（colSpan）等。

实际表格如下：

由于有跨行跨列，序号不规则，容易出现画了A行后，B行的相应列数已经被占用，因此需要判断。方法是：将表格抽象为二位数组，当跨行是，标记占用的其他行的空格；在绘制是首先判断这个单元格是否被占用，如果占用，二位数组的列号加1，直到空位出现。

int row = 0;
int rowSpan = 0;
int colSpan = 0;
int lastRow = 0;
int maxCols = 0;
int colCount = 0;
int windowWidth = 获取屏幕宽度;
int colWidth = 0;
int index = 0;
View view = null;

List<Integer> filledCellList = new ArrayList<Integer>();

do {

	row = ...;
	rowSpan = ...;
	colSpan = ...;
	maxCols = ...;

	GridLayout gridLayout = new GridLayout(context);
	gridLayout.setColumnCount(newMaxCols);
	gridLayout.setUseDefaultMargins(true);
	gridLayout.setOrientation(GridLayout.HORIZONTAL);
	gridLayout.setBackgroundResource(R.color.dark_green);
	gridLayout.setAlignmentMode(GridLayout.ALIGN_MARGINS);
	colWidth = windowWidth / maxCols;

	if (row > lastRow) {
	<span style="white-space:pre">	</span>lastRow = row;
		colCount = 1;
	}

	view = createView(...);

	if (view != null) {
		view.setBackgroundColor(Color.WHITE);

		GridLayout.LayoutParams params = new GridLayout.LayoutParams();
		params.setMargins(1, 1, 1, 1);
		params.width = colWidth * colSpan;

		index = maxCols * (row - 1) + colCount - 1;

		while (filledCellList.contains(index)) {
			colCount++;
			index = maxCols * (row - 1) + colCount - 1;
		}

		if (rowSpan > 1) {

			for (int j = row; j < row + rowSpan; j++) {
				for (int i = colCount; i < colCount + colSpan; i++) {
					if (j == row && i == colCount) {
						continue;
					}
					index = maxCols * (j - 1) + i - 1;
					filledCellList.add(index);
				}
			}
		}

		params.columnSpec = GridLayout.spec(colCount - 1, colSpan, GridLayout.FILL);
		params.rowSpec = GridLayout.spec(row - 1, rowSpan, GridLayout.FILL);
		gridLayout.addView(view, params);

		colCount += colSpan;
	}


} while (cursor.moveToNext()); //一个Cursor数据代表一个单元格数据

GridLayout绘制复杂表格

标签：android   表格   gridlayout   

原文地址：http://blog.csdn.net/ruyi366/article/details/46006863