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POUIPickerview's subviews count is always 3 in iOS 7?
 

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  1. POUIPickerview's subviews count is always 3 in iOS 7?
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    <p>I just started to migrate to iOS 7 and found several issues concerning UIPickerView in my app. And the reason is that I used the subviews of UIPickerView to customize it's background and style. I am logging the subviews count of UIpickerview and it's always is 3:</p> <pre><code>-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)thePickerView { return 1; } -(NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent: (NSInteger)component { return 22; } -(UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view { UILabel* label = [[UILabel alloc]init]; label.frame = CGRectMake(152, 3,100, 16); label.text = @"test"; NSLog(@"count is %i",_pickerView.subviews.count); return label; } </code></pre> <p>I iOS 6.1, the count is always 9.</p> <p>Edit 1: Another difference: The bellow code crashes on iOS 7 and works without any problems on iOS 6.</p> <pre><code>-(UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view { UILabel* label = [[UILabel alloc]init]; label.frame = CGRectMake(152, 3,100, 16); label.text = @"test"; if(row &gt; 3){ UIView* view = [pickerView viewForRow:3 forComponent:0]; // crash in iOS 7 } NSLog(@"count is %i",_pickerView.subviews.count); return label; } </code></pre> <p>Edit 2: _pickerView.showsSelectionIndicator = NO;</p> <p>has not any affection on iOS 7.</p> <p>Can someone explain how it works?</p>
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    1. USsomeUser
    1. USsomeUser
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    1. COInternal structure of picker view is just a implementation detail, that can vary in different OS versions. You should not depend on that anyway
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      1. POUIPickerview's subviews count is always 3 in iOS 7?
      1. USVladimir
    2. CO@Vladimir Please see my edit.
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      1. POUIPickerview's subviews count is always 3 in iOS 7?
      1. USsomeUser
    3. COWhat error message you get on crash? I ran sample project with your code and it worked fine
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      1. POUIPickerview's subviews count is always 3 in iOS 7?
      1. USVladimir
 

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