Question

潜入之前...... 默认情况下，ControlState设置为“正常”，并带有“图像集”

当用户点击按钮时，它会更改按钮的图像，因为我将该按钮的目标设置为与所需方法相对应。当 - （void）RADIOBUTTONAClicked：被调用时，我需要更改所有其他RADIOBUTTONS的图像

-(void)RadioButtonACLicked:{
//code to change radioButton A, the code i have works 
// Code to change all other buttons does not work. 
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{ .... //配置单元格......

....
//-------------Creation of Custom Buttons-------------// 
//----RadioButtonA----//
....
[radioButtonA addTarget:self action:@selector(radioButtonAClicked:)forControlEvents:UIControlEventTouchUpInside];

 [radioButtonA setImage:img2 forState:UIControlStateNormal];

ButtonB创建

radioButtonB = [UIButton buttonWithType:UIButtonTypeCustom];

[radioButtonB addTarget:self action:@selector(radioButtonBClicked:)forControlEvents:UIControlEventTouchUpInside];
[radioButtonB setImage:img2 forState:UIControlStateNormal];

所以当点击一个radioButton时，我需要将所有其他按钮Image设置为相反。

Answer 1

我花了一段时间才开始工作

(void)radioButtonClicked:(UIButton *)sender
{
...

// Sets the UIImage for the custom RadioButtons. 
//img refers to radioOn and img2 refers to radioOff.
// uses an if esle conditional block inorder to correctly change the Images if teh conditions are met.

for(int i=0;i<[self.radioButtons count];i++){
    if ([[self.radioButtons objectAtIndex:i]tag] == sender.tag) {
    [[self.radioButtons objectAtIndex:i] setImage:img2 forState:UIControlStateNormal];

}

[sender setImage:img forState:UIControlStateNormal];

}

Answer 2

执行以下操作

//When creating the button, set their tags
radioButtonA = [UIButton buttonWithType:UIButtonTypeCustom];
//Add this line
radioButtonA.tag = 111;

radioButtonB = [UIButton buttonWithType:UIButtonTypeCustom];
//Add this line
radioButtonB.tag = 112;

现在在

-(void)RadioButtonACLicked:{
   //code to change radioButton A, the code i have works 
   //Code to change all other buttons does not work. 
   radioButtonA = [self.view viewWithTag:111];
   radioButtonB = [self.view viewWithTag:112];
   //Change the images for radioButton A and B as you wish
}

单击其他按钮时更改UIButton的图像

2 个答案: