ios - 更改 UITableView 中的 UIButton 图像 UIButton 单击

Question

在 UITableView cellForRowAtIndexPath 中创建一个按钮和一个图像。为该按钮编写操作单击以更改按钮图像。这里是代码。

ButtonImage = [UIImage imageNamed:@"work_exe_old.png"];    
myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
myButton.frame = CGRectMake(250,10,34,34);
myButton.tag=22;
[myButton setBackgroundImage:ButtonImage forState:UIControlStateNormal];
[myButton addTarget:self  action:@selector(select_id:)forControlEvents:UIControlEventTouchDown];

- (IBAction)select_id:(id)search
{
    UIButton *tempBtn =(UIButton *) search;
    [tempBtn setImage:[UIImage imageNamed:@"work_exe.png"]    forState:UIControlStateNormal];
}

单击按钮图像已更改 (work_exe.png)。再次单击相同的按钮意味着图像想要更改 (work_exe_old.png) 就像 tableview 中的复选框一样。我怎样才能做到这一点

Answer 1

您可以更好地定制您的代码，而不是以这种方式进行。检查下面的代码:

ButtonImage = [UIImage imageNamed:@"work_exe.png"];
ButtonImageSelected = [UIImage imageNamed:@"work_exe_old.png"];

myButton = [UIButton buttonWithType:UIButtonTypeCustom];

myButton.frame = CGRectMake(250,10,34,34);

myButton.tag=22;

[myButton setBackgroundImage:ButtonImage forState:UIControlStateNormal];

[myButton setBackgroundImage:ButtonImageSelected forState:UIControlStateSelected];

[myButton addTarget:self action:@selector(select_id:)forControlEvents:UIControlEventTouchDown];

你可以像这样实现这个选择器方法:

-(IBAction)select_id:(UIButton *) tempBtn {

  [tempBtn setSelected:! tempBtn.selected];
}