我看了看网上的内容并没有找到太多！
我想知道你如何将图像放在UIPicker中,以便每个行都有不同的图像.
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
@synthesize pickerContent;
@synthesize p1;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view,typically from a nib.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// dispose of any resources that can be recreated.
}
//////////
- (NSMutableArray *)pickerContent
{
if(!pickerContent) {
pickerContent = [[NSMutableArray alloc] initWithObjects:
[UIImage imageNamed:@"one.jpg"],[UIImage imageNamed:@"two.jpg"],[UIImage imageNamed:@"three.jpg"],[UIImage imageNamed:@"four.jpg"],[UIImage imageNamed:@"five.jpg"],nil];
}
return pickerContent;
}
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
if ([pickerView isEqual:p1])
{
return 4;
}
return 0;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
if ([pickerView isEqual:p1])
{
if (component == R1)return [self.pickerContent count];
if (component == R2)return [self.pickerContent count];
if (component == R3)return [self.pickerContent count];
if (component == R4)return [self.pickerContent count];
}
return 0;
}
- (Nsstring *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
if ([pickerView isEqual:p1])
{
if (component== R1)return [pickerContent objectAtIndex:row];
if (component== R2)return [pickerContent objectAtIndex:row];
if (component== R3)return [pickerContent objectAtIndex:row];
if (component== R4)return [pickerContent objectAtIndex:row];
}
return 0;
}
@end
解决方法
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view{
UIImage *img = [UIImage imageNamed:[Nsstring stringWithFormat:@"your image number %@.png",(long)row]];
UIImageView *temp = [[UIImageView alloc] initWithImage:img];
temp.frame = CGRectMake(-70,10,60,40);
UILabel *channelLabel = [[UILabel alloc] initWithFrame:CGRectMake(50,-5,80,60)];
channelLabel.text = [Nsstring stringWithFormat:@"%@",[your array objectAtIndex:row]];
channelLabel.textAlignment = UITextAlignmentLeft;
channelLabel.backgroundColor = [UIColor clearColor];
UIView *tmpView = [[UIView alloc] initWithFrame:CGRectMake(0,110,60)];
[tmpView insertSubview:temp atIndex:0];
[tmpView insertSubview:channelLabel atIndex:1];
return tmpView;
}