如何自定义表格中的按钮？
如何自定义表格中的按钮？
提问于 2015-04-02 06:20:04
我正在开发一个iOS应用程序，我正在使用Xcode 6。
我在tableview单元格中创建了5个按钮，我只想在time.That中定制一个按钮，这意味着当我单击一个按钮时，它必须放大，其他按钮将保持默认大小。
现在的问题是，当我单击一个按钮时，它会放大，如果我单击另一个按钮，它也是enlarge.But，我希望将其余的按钮保持在我在CGRect函数中输入的默认大小。
这是我的代码：
#import "ViewController.h"
@interface ViewController ()
{
UITableViewCell *cell;
UIButton *b2,*b1;
}
//@property(strong,nonatomic)UIButton *b3,*b4,*b5;
//@property(strong,nonatomic)UIButton *b1,*b2;
@end
@implementation ViewController
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 5;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
cell = [tableView dequeueReusableCellWithIdentifier:@"cell" forIndexPath:indexPath];
UIButton *b1=[UIButton buttonWithType:UIButtonTypeCustom];
b1.frame=CGRectMake(13.0, 40.0, 40.0, 40.0);
[b1 setTag:1];
[b1 addTarget:self action:@selector(modify:) forControlEvents:UIControlEventTouchUpInside];
[b1 setBackgroundColor:[UIColor blueColor]];
[b1 setTitle:@"Blue" forState:UIControlStateNormal];
UIBButton *b2=[UIButton buttonWithType:UIButtonTypeCustom];
b2.frame=CGRectMake(73.0, 40.0, 40.0, 40.0);
[b2 setTag:2];
[b2 addTarget:self action:@selector(modify1:) forControlEvents:UIControlEventTouchUpInside];
[b2 setBackgroundColor:[UIColor redColor]];
[b2 setTitle:@"red" forState:UIControlStateNormal];
UIButton *b3=[UIButton buttonWithType:UIButtonTypeCustom];
b3.frame=CGRectMake(133.0, 40.0, 40.0, 40.0);
[b3 setTag:3];
[b3 addTarget:self action:@selector(modify2:) forControlEvents:UIControlEventTouchUpInside];
[b3 setBackgroundColor:[UIColor greenColor]];
[b3 setTitle:@"Green" forState:UIControlStateNormal];
UIButton *b4=[UIButton buttonWithType:UIButtonTypeCustom];
b4.frame=CGRectMake(193.0, 40.0,40.0, 40.0);
[b4 setTag:4];
[b4 addTarget:self action:@selector(modify3:) forControlEvents:UIControlEventTouchUpInside];
[b4 setBackgroundColor:[UIColor blackColor]];
[b4 setTitle:@"Black" forState:UIControlStateNormal];
UIButton *b5=[UIButton buttonWithType:UIButtonTypeCustom];
b5.frame=CGRectMake(253.0, 40.0, 40.0, 40.0);
[b5 setTag:5];
[b5 addTarget:self action:@selector(modify4:) forControlEvents:UIControlEventTouchUpInside];
[b5 setBackgroundColor:[UIColor orangeColor]];
[b5 setTitle:@"Orange" forState:UIControlStateNormal];
[cell addSubview:b1];
[cell addSubview:b2];
[cell addSubview:b3];
[cell addSubview:b4];
[cell addSubview:b5];
return cell;
}
-(void)modify:(UIButton *)btn
{
if (btn.tag==1) {
btn.frame=CGRectMake(13.0, 40.0, 60.0, 60.0);
}
if (btn.tag!=1)
{
btn.frame=CGRectMake(73.0, 40.0, 40.0, 40.0);
btn.frame=CGRectMake(133.0, 40.0, 40.0, 40.0);
btn.frame=CGRectMake(193.0, 40.0, 40.0, 40.0);
btn.frame=CGRectMake(253.0, 40.0, 40.0, 40.0);
}
}
-(void)modify1:(UIButton *)btn1
{
if (btn1.tag==2) {
btn1.frame=CGRectMake(73.0, 40.0, 60.0, 60.0);
if (btn1.tag==1) {
btn1.frame=CGRectMake(13.0, 40.0, 40.0, 40.0);
}
}
-(void)modify2:(UIButton *)btn2
{
if (btn2.tag==3) {
btn2.frame=CGRectMake(133.0, 40.0, 60.0, 60.0);
}
}
-(void)modify3:(UIButton *)btn3
{
if (btn3.tag==4) {
btn3.frame=CGRectMake(193.0, 40.0, 60.0, 60.0);
if (btn3.tag==3) {
btn3.frame=CGRectMake(133.0, 40.0, 40.0, 40.0);
}
if (btn3.tag==2) {
btn3.frame=CGRectMake(73.0, 40.0, 40.0, 40.0);
}
if (btn3.tag==1) {
btn3.frame=CGRectMake(13.0, 40.0, 40.0, 40.0);
}
if (btn3.tag==5) {
btn3.frame=CGRectMake(253.0, 40.0, 40.0, 40.0);
}
}
}
-(void)modify4:(UIButton *)btn4
{
if (btn4.tag==5) {
btn4.frame=CGRectMake(253.0, 40.0, 60.0, 60.0);
if (btn4.tag==4) {
btn4.frame=CGRectMake(193.0, 40.0, 40.0, 40.0);
}
if (btn4.tag==3) {
btn4.frame=CGRectMake(133.0, 40.0, 40.0, 40.0);
}
if (btn4.tag==2) {
btn4.frame=CGRectMake(73.0, 40.0, 40.0, 40.0);
}
if (btn4.tag==1) {
btn4.frame=CGRectMake(13.0, 40.0, 40.0, 40.0);
}
}
}
}回答 3
Stack Overflow用户
回答已采纳
发布于 2015-07-20 09:22:29
[btn1 addTarget:self action:@selector(increaseAction:) forControlEvents:UIControlEventTouchUpInside];
[btn2 addTarget:self action:@selector(increaseAction:) forControlEvents:UIControlEventTouchUpInside];
[btn3 addTarget:self action:@selector(increaseAction:) forControlEvents:UIControlEventTouchUpInside];
[btn4 addTarget:self action:@selector(increaseAction:) forControlEvents:UIControlEventTouchUpInside];
[btn5 addTarget:self action:@selector(increaseAction:) forControlEvents:UIControlEventTouchUpInside];
btn1.tag=1;
btn2.tag=2;
btn3.tag=3;
btn4.tag=4;
btn5.tag=5;
-(IBAction)increaseAction:(id)sender
{
UIButton *button = (UIButton *) sender;
//Here perform the desired operation
}Stack Overflow用户
发布于 2015-04-02 06:50:04
在下面的方法中，不要做这么多的事情，而是做以下更改：
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *MyIdentifier = @"MyIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
UILabel *lblFirst=nil;
UILabel *lblSecond=nil;
UITableViewCellStyle style =UITableViewCellStyleSubtitle;
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:style reuseIdentifier:MyIdentifier] autorelease];
//Account
lblFirst = [[UILabel alloc] initWithFrame:CGRectInset(CGRectMake(0, 0, 130,
iRowHeight),10,2)] ;
lblFirst.tag=1;
[self labelCommonSettingsLeftAlign:lblFirst];
[cell.contentView addSubview:lblFirst];
//----------------------------------------
//name
lblSecond = [[UILabel alloc] initWithFrame:CGRectInset(CGRectMake(131, 0, 130,
iRowHeight),10,2)] ;
lblSecond.tag=2;
[self labelCommonSettingsLeftAlign:lblSecond];
[cell.contentView addSubview:lblSecond];
[lblFirst release];
lblFirst=nil;
[lblSecond release];
lblSecond=nil;
}
lblFirst = (UILabel *)[cell.contentView viewWithTag:1];
lblSecond = (UILabel *)[cell.contentView viewWithTag:2];
/*//Here u can check the condition of selected tag and indexpath.row.
for e.g if(selectedTag==indexpath.row)
{
//change button size to New Size
}
else
{
//change button size to Old Size
}*/
return cell;
}现在，在上面的代码中，我在单元格上添加了两个标签。取而代之的是，你可以在单元格上添加按钮。现在，每当你点击按钮，你就会得到按钮标签。通过检查tag value和cellForRowAtIndexPath中的单元格indexpath.row，可以改变所选按钮和其他按钮的按钮框。为此，您需要调用表视图reloadData函数。确保将selectedIndex初始化为-1。
Stack Overflow用户
发布于 2015-05-14 07:55:57
也许这可以帮助你得到正确的索引。
-(void)modify4:(UIButton *)sender {
GPoint buttonPosition = [sender convertPoint:CGPointZero toView:self.tableView];
NSIndexPath *currentPhotoIndexPath = [self.tableView indexPathForItemAtPoint:buttonPosition];
.....
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/29406253
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