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如何在滑块上设置图像？

发布于 2024-12-03 05:55:28 字数 143 浏览 1 评论 0原文

在此处输入图像描述

我想对上面的图像使用滑块控件。当用户滑动时，类别选项卡会突出显示并令人高兴。那么我如何使用滑块控制器才能获得此功能？如何使用滑块控件呢？

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蓬勃野心 2024-12-10 05:55:28

The simplest solution would be to render a UIImage behind the control to represent the track. The thumbknob can be changed with:

[mySlider setThumbImage:[UIImage imageNamed:@"thumb_image.png"] forState:UIControlStateNormal];

A side-effect of this is that the track isn't rendered unless you provide your own. This, combined with the UIImage, provide you with a custom UISlider without you having to subclass anything.

The simplest solution would be to render a UIImage behind the control to represent the track. The thumbknob can be changed with:

[mySlider setThumbImage:[UIImage imageNamed:@"thumb_image.png"] forState:UIControlStateNormal];

A side-effect of this is that the track isn't rendered unless you provide your own. This, combined with the UIImage, provide you with a custom UISlider without you having to subclass anything.

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绮烟 2024-12-10 05:55:28

您显示的控件是一个分段控件，您可以使用这段代码设置图像

UISegmentedControl* offlineSegment=[[UISegmentedControl alloc] initWithItems:[[[NSMutableArray alloc] initWithObjects:@"ON",@"OFF",nil] autorelease]];
    [offlineSegment setFrame:CGRectMake(210,50,90,30)];
    offlineSegment.tintColor=[UIColor greenColor];
    offlineSegment.selectedSegmentIndex=0;

    offlineSegment.segmentedControlStyle=UISegmentedControlStyleBezeled;
    [locationSegment setImage:[UIImage imageNamed:@"onSelected.png"] forSegmentAtIndex:0];
    [locationSegment setImage:[UIImage imageNamed:@"off.png"] forSegmentAtIndex:1];
    [offlineSegment addTarget:self action:@selector(offlineSetting:) forControlEvents:UIControlEventValueChanged];
    [self.view addSubview:offlineSegment];
    [offlineSegment release];

希望这对您有帮助

The control you are showing is a segment control and you can set the image by using this piece of code

UISegmentedControl* offlineSegment=[[UISegmentedControl alloc] initWithItems:[[[NSMutableArray alloc] initWithObjects:@"ON",@"OFF",nil] autorelease]];
    [offlineSegment setFrame:CGRectMake(210,50,90,30)];
    offlineSegment.tintColor=[UIColor greenColor];
    offlineSegment.selectedSegmentIndex=0;

    offlineSegment.segmentedControlStyle=UISegmentedControlStyleBezeled;
    [locationSegment setImage:[UIImage imageNamed:@"onSelected.png"] forSegmentAtIndex:0];
    [locationSegment setImage:[UIImage imageNamed:@"off.png"] forSegmentAtIndex:1];
    [offlineSegment addTarget:self action:@selector(offlineSetting:) forControlEvents:UIControlEventValueChanged];
    [self.view addSubview:offlineSegment];
    [offlineSegment release];

Hope this will help you

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