我试图实现用UIView
s(或其他控件)生成(绘制)网格的通用方法。他们都应该有边框,我的问题是我找不到正确的算法来移动(组合)边界(所以"表"没有像现在这样的双单元格边框)并增加大小,以便视图与frame
(图片中的红色)完全匹配。
以下代码生成下面的图片:
////////
const CGFloat kOuterBorderWidth = 0.0;
const CGFloat kInnerBorderWidth = 1.0;
NSArray *rows;
NSArray *columns = rows = @[@0.065, @0.29, @0.29, @0.29, @0.065];
NSMutableArray *cells = [self drawGridWithFrame:self.frame
columns:columns
rows:rows
outerBorderWidth:kOuterBorderWidth
innerBordersWidth:kInnerBorderWidth];
///////
和方法本身
- (NSMutableArray*)drawGridWithFrame:(CGRect)frame
columns:(NSArray *)columns
rows:(NSArray *)rows
outerBorderWidth:(CGFloat)outerBorderWidth
innerBordersWidth:(CGFloat)innerBordersWidth
{
CGFloat x = 0, y = 0;
NSMutableArray *cells = [NSMutableArray new];
CGFloat height = [rows[0] floatValue] * frame.size.height;
for (int j = 0; j < columns.count; j++) {
CGFloat width = [columns[j] floatValue] * frame.size.width;
CGRect cellFrame = CGRectMake(x, y, width, height);
UIView *cellView = [[UIView alloc] initWithFrame:cellFrame];
cellView.layer.borderWidth = innerBordersWidth;
if (j == 0 || j == columns.count - 1) {
cellView.layer.borderColor = [UIColor magentaColor].CGColor;
}
if (j == 1) {
cellView.layer.borderColor = [UIColor orangeColor].CGColor;
}
if (j == 2) {
cellView.layer.borderColor = [UIColor brownColor].CGColor;
}
[cells addObject:cellView];
x += [columns[j] floatValue] * frame.size.width;
}
return cells;
}
答案 0 :(得分:0)
完成它。
注意:outerBorderWidth
现在不在这里使用,如果它是&gt; 1.0pt,那么我们还应该移动视图并调整它们的大小
- (NSMutableArray*)drawGridWithFrame:(CGRect)frame
columns:(NSArray *)columns
rows:(NSArray *)rows
outerBorderWidth:(CGFloat)outerBorderWidth
innerBordersWidth:(CGFloat)innerBordersWidth
{
CGFloat x = 0, y = 0;
NSMutableArray *cells = [NSMutableArray new];
CGFloat heightAdjust = (CGFloat)(rows.count - 1) / (CGFloat)rows.count;
CGFloat widthAdjust = (CGFloat)(columns.count - 1) / (CGFloat)columns.count;
for (int i = 0; i < rows.count; i++) {
CGFloat height = [rows[i] floatValue] * frame.size.height + innerBordersWidth * heightAdjust;
for (int j = 0; j < columns.count; j++) {
CGFloat width = [columns[j] floatValue] * frame.size.width + innerBordersWidth * widthAdjust;
CGRect cellFrame = CGRectMake(x, y, width, height);
UIView *cellView = [[UIView alloc] initWithFrame:cellFrame];
cellView.layer.borderWidth = innerBordersWidth;
if (j == 0 || j == columns.count - 1) {
cellView.layer.borderColor = [UIColor magentaColor].CGColor;
}
if (j == 1) {
cellView.layer.borderColor = [UIColor orangeColor].CGColor;
}
if (j == 2) {
cellView.layer.borderColor = [UIColor brownColor].CGColor;
}
[cells addObject:cellView];
x += width - innerBordersWidth;
}
x = 0;
y += height - innerBordersWidth;
}
return cells;
}
结果: