我有一个包含三行的UITableView。每个单元格都通过代码作为DataElement创建，如下所示：
DataElement *e = [[DataElement allc] initFloatWithLabel:@"Price" defaultValue:o format:"@.2f" plcaeholder:@"" unit:@""]
and
e= [[DataElement alloc] initSegmentedControlWithLabel:@"Unit of Sale" defaultValue:0 items:<an array with gallons and liters>]
我将尝试视觉复制我想要的东西。
价格........... [价格输入栏位于右侧]
销售单位.... [加仑和升的分段控制]
总............ [基于其他细胞的总电场，具有加仑和升的数量]
有没有办法将价格和分段控件放在同一行上？
价格............. [价格输入字段] ..... [分段控制加仑或升]
总计............. [总字段]
在目标C中编码
答案 0 :(得分：0)
有几种方法：
下面是示例，请注意，这是一组顶级类，请参见https://github.com/pablogsIO/PGMenu/（Swift原型）
GMStackMenu.h
#import <UIKit/UIKit.h>
#import "GMGradient.h"
#import "UIColor+ColorHex.h"
NS_ASSUME_NONNULL_BEGIN
@protocol GMStackMenuDelegate <NSObject>
@optional
- (void)stackMenuButtonPressedWithTag:(NSInteger) aTag;
@end
/**
ButtonList Array of arrays:
@[ @(buttonTag), NSString *imageName, NSString *labelText, CMGradient *gradient ]
*/
@interface GMStackMenu : UIView
@property (nonatomic, assign) id <GMStackMenuDelegate> delegate;
- (instancetype) initWithFrame:(CGRect)frame andButtonList:(NSArray *)bList;
- (void) showOnScreen;
- (void) hideFromScreen;
@end
NS_ASSUME_NONNULL_END
GMStackMenu.m
#import "GMStackMenu.h"
#import "GMButtonMeniItem.h"
#define RELATION_FACTOR (0.4*6./7.)
#define BUTTONS_PER_ROW 2
@interface GMStackMenu() {
UIStackView *outer;
}
@end
@implementation GMStackMenu
- (instancetype) initWithFrame:(CGRect)frame andButtonList:(NSArray *)bList
{
if (self = [super initWithFrame:frame]) {
[self stackConfiguration];
[self stackItemsConfiguration:bList];
self.alpha = 0.0;
[self hideFromScreen];
}
return self;
}
- (void) stackConfiguration
{
CGRect stackviewFrame = CGRectMake(self.frame.origin.x,
self.frame.origin.y + 100, // отступ сверху
self.frame.size.width,
self.frame.size.height - 100);
outer = [[UIStackView alloc] initWithFrame: stackviewFrame];
outer.axis = UILayoutConstraintAxisVertical;
outer.alignment = UIStackViewAlignmentCenter;
outer.distribution = UIStackViewDistributionFillEqually;
outer.spacing = .0;
outer.contentMode = UIViewContentModeScaleToFill;
[self addSubview:outer];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(buttonClicked:) name: GMCircularButtonTapped object:nil];
}
- (void) stackItemsConfiguration:(NSArray *)bList
{
BOOL odd = NO;
NSInteger rows = bList.count / BUTTONS_PER_ROW;
if (rows * BUTTONS_PER_ROW != bList.count) {
rows++;
odd = YES;
}
// CGRect containerFrame = self.frame;
// containerFrame.origin = CGPointZero;
// UIView *container = [[UIView alloc] initWithFrame:containerFrame];
CGFloat leadTrail = (self.frame.size.width - BUTTONS_PER_ROW*(RELATION_FACTOR * self.frame.size.width))/(BUTTONS_PER_ROW + 1.0);
CGFloat buttonSize = 0.75 * (self.frame.size.width - leadTrail * 2.0)/ BUTTONS_PER_ROW;
CGFloat xStep = buttonSize * 0.25;
// CGFloat yoffset = (self.frame.size.height - buttonSize*rows - xStep*(rows - 1)) / 2.0;
CGFloat internalWidth = BUTTONS_PER_ROW * buttonSize + xStep*(BUTTONS_PER_ROW - 1);
CGFloat externalHeight = rows * buttonSize + (rows - 1) * xStep;
[outer.heightAnchor constraintEqualToConstant:externalHeight].active = true;
[self addConstraint:[NSLayoutConstraint constraintWithItem:outer
attribute:NSLayoutAttributeTop
relatedBy:NSLayoutRelationEqual
toItem:self
attribute:NSLayoutAttributeTop
multiplier:1.0
constant:50.0]];
UIStackView *internalHor = nil;
for (NSInteger i = 0; i < bList.count; i++) {
NSArray *a = bList[i];
NSInteger rowOffset = i % BUTTONS_PER_ROW;
if (rowOffset == 0) {
internalHor = [[UIStackView alloc] init];
internalHor.axis = UILayoutConstraintAxisHorizontal;
internalHor.alignment = UIStackViewAlignmentCenter;
internalHor.distribution = UIStackViewDistributionFillEqually;
internalHor.spacing = xStep;
internalHor.contentMode = UIViewContentModeScaleToFill;
[internalHor.heightAnchor constraintEqualToConstant:buttonSize].active = true;
[internalHor.widthAnchor constraintEqualToConstant:internalWidth].active = true;
[outer addArrangedSubview:internalHor];
}
// NSInteger currentRow = i / BUTTONS_PER_ROW;
NSInteger tag = [a[0] integerValue]; // тег кнопки
NSString *imName = a[1];
NSString *lblText = a[2];
GMGradient *gradient = a[3];
// CGFloat xOffset = leadTrail + rowOffset * (buttonSize + xStep);
// CGFloat yOffset = yoffset + currentRow * (buttonSize + xStep);
CGRect buttonFrame = CGRectMake(0,0,buttonSize, buttonSize);
GMButtonMeniItem *item = [[GMButtonMeniItem alloc] initWithFrame:buttonFrame imageName:imName
labelText:lblText gradient:gradient
andComponentTag:tag];
[item.heightAnchor constraintEqualToConstant:buttonSize].active = true;
// [item.widthAnchor constraintEqualToConstant:buttonSize].active = true;
[internalHor addArrangedSubview:item];
}
// добавим блюр
CGRect frame = self.frame;
UIBlurEffect *blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleExtraLight];
UIVisualEffectView *efView = [[UIVisualEffectView alloc] initWithEffect:blurEffect];
efView.frame = frame;
[self insertSubview:efView belowSubview:self.subviews.firstObject];
}
- (void) buttonClicked:(NSNotification *) note
{
NSInteger bTag = [[note object] integerValue];
if (self.delegate && [self.delegate respondsToSelector:@selector(stackMenuButtonPressedWithTag:)]) {
[self.delegate stackMenuButtonPressedWithTag:bTag];
[self hideFromScreen];
}
}
- (void) showOnScreen
{
CGRect b = [UIScreen mainScreen].bounds;
CGRect targetFrame = CGRectMake(0, b.origin.y,
b.size.width, b.size.height);
[UIView animateWithDuration:0.5 animations:^{
self.frame = targetFrame;
self.alpha = 1.0;
}];
}
- (void) hideFromScreen
{
CGRect b = [UIScreen mainScreen].bounds;
CGRect targetFrame = CGRectMake(b.size.width, b.origin.y,
b.size.width, b.size.height);
[UIView animateWithDuration:0.5 animations:^{
self.frame = targetFrame;
self.alpha = 0.0;
}];
}
@end