iOS UIslider setMinimumTrackImage图片拖拉时变形问题

UIImage *minTrack = [[[UIImage imageNamed:@"图片"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]

//                              resizableImageWithCapInsets:UIEdgeInsetsMake(0, 22, -4, 22)];

//        [slider setMinimumTrackImage:minTrack forState:UIControlStateNormal];

定制好UIEdgeInsetsMake伸缩范围即可不变形

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