tableview 单元格中的单选按钮 [英] Radio button in tableview Cell
问题描述
这里我使用 UITableviewcell 的子类作为 Tableview.我正在创建一些虚拟的 json 值，并将传递给我的 tableview 单元格中的标签.
Here I am using subclass of UITableviewcell as Tableview. And I am creating some dummy json value and I am passing to the label in my tableview cell.
我还在左侧的Tabelview.xib中添加了一个按钮.该按钮将作为单选按钮来检查和取消选中.现在，当我运行我的所有表视图时，都显示取消选中图像按钮.如何选中或取消选中?
And also i added one button in my Tabelview.xib at left side. That button will act as radiobutton to check and uncheck. Now when I run my all table view are showing uncheck image button. How can I check or uncheck?
这是我的代码:
Tableview.h
#import <UIKit/UIKit.h>
@interface TableView : UITableViewCell
@property (weak, nonatomic) IBOutlet UILabel *lab1;
@property (weak, nonatomic) IBOutlet UILabel *lab2;
@property (weak, nonatomic) IBOutlet UILabel *lab3;
@property (weak, nonatomic) IBOutlet UIButton *checkBtn;
@end
Tableview.m
#import "TableView.h"
@implementation TableView
@synthesize lab1 = _lab1;
@synthesize lab2 = _lab2;
@synthesize lab3 = _lab3;
@synthesize checkBtn;
- (void)awakeFromNib {
// Initialization code
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
Viewcontroller.m
#import "ViewController.h"
#import "TableView.h"
@interface ViewController ()<UITableViewDataSource,UITableViewDelegate>
@end
@implementation ViewController
{
NSArray *jsonObject;
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
//NSArray *jsonObject;
jsonObject = @[
@{
@"partner": @"50",
@"gamer": @"199",
@"pointer": @"144"
},
@{
@"partner": @"80",
@"gamer": @"112",
@"pointer": @"11" },
@{
@"partner": @"30",
@"gamer": @"112",
@"pointer": @"14"
},
@{
@"partner": @"50",
@"gamer": @"100",
@"pointer": @"199"
},
@{
@"partner": @"50",
@"gamer": @"19",
@"pointer": @"44"
},
@{
@"partner": @"2000",
@"gamer": @"500",
@"pointer": @"1000"
}
];
NSError *err;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:jsonObject options:NSJSONWritingPrettyPrinted error:nil];
NSString * jsonString=[[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSLog(@"%@",jsonString);
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [jsonObject count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"TableView";
TableView *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
NSArray *nib = [[NSBundle mainBundle] loadNibNamed:CellIdentifier owner:self options:nil];
cell = [nib objectAtIndex:0];
}
cell.lab1.text = [jsonObject objectAtIndex:indexPath.row][@"gamer"];
cell.lab2.text = [jsonObject objectAtIndex:indexPath.row][@"partner"];
cell.lab3.text = [jsonObject objectAtIndex:indexPath.row][@"pointer"];
return cell;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 78;
}
只有一个单选按钮应选中，其他行单选按钮应取消选中.
At only one radio button should check and other rows radiobutton are should uncheck.
我使用了两张图片:
- selectBtn.png
- 取消选择Btn.png
我错过了什么?我尝试将这些步骤添加到我的项目中，但我是一个初学者，因此无法完美完成并且出现更多崩溃.
What am I missing? I tried these steps to added in my projects but I am a beginner so not able to do perfectly and getting more crash.
@interface RootViewController : UITableViewController {
NSMutableArray *radioButtonArray;
}
@property (nonatomic ,retain)NSMutableArray *radioButtonArray;
in tableviewController.h.m
- (void)viewDidAppear:(BOOL)animated {
radioButtonArray = [NSMutableArray new];
for (int i = 0; i < 30; i ++) {
UIButton *radioButton = [UIButton buttonWithType:UIButtonTypeCustom];
[radioButton setImage:[UIImage imageNamed:@"radio-off.png"] forState:UIControlStateNormal];
[radioButton setImage:[UIImage imageNamed:@"radio-on.png"] forState:UIControlStateSelected];
[radioButton setFrame:CGRectMake(0, 0, 44, 44)];
[radioButton addTarget:self action:@selector(radioButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
[radioButtonArray addObject:radioButton];
}
[super viewDidAppear:animated];
}
and give it a (IBAction) void
- (IBAction)radioButtonPressed:(UIButton *)button{
[button setSelected:YES];
// Unselect all others.
for (UIButton *other in radioButtonArray) {
if (other != button) {
other.selected=NO;
}
}
}
推荐答案
请使用数组保存所有单元格.并在 -(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath 委托以获取选定的行并使其他行按钮并选择选定的行按钮.
Please use an array to save all the cells. and on -(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath delegate to get which row is selected and make the others rows button and select the selected row button.
我已经为你做了这件事，我建议你使用逻辑，不要把你面临的每个问题都张贴在这里.
I have done this for you i am suggesting you to use the logics and don't post every issue you are facing here.
https://www.dropbox.com/s/j02yotvevxfp821/jsonTableView%203.zip?dl=0
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