问题
I have an app with a UIPickerView. I am returning a custom view with the method
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view
It looked fine in iOS 6. In iOS 7, not so much -- screen shot below.
Notice that in the cells that don't have focus, the second and third columns overlap. The central row is correct.
Any suggestions?
回答1:
It seems that for a strange reason, if the width of any column is higher than 1/3 of the picker view's width the layout breaks. So if you have a 320 pixel wide picker view 106 or less is working, but 107 or higher is wrong, regardless if you have 2,3,4 ... components. Really strange.
回答2:
As imihaly said in his earlier post it looks like this only happens if the widthForComponent value for the LAST component is more than 106 pixels. The other components can return a value over 106 and it will look fine. Also, if you return a view that's smaller in width than the value returned by widthForComponent it will center the view, but it will be offset to the left by about 10 pixels.
回答3:
I had a similar issue, but I was displaying simple numbers instead. See my similar question. Short answer is that I had to break up the components into different UIPickerViews.
回答4:
As @imihaly mentioned, There is only one solutions that I come up with to increase a width of picker view which is add into view.
I have created a demo like https://github.com/Dharmesh-shah2412/demoPickerView
来源：https://stackoverflow.com/questions/19672996/uipickerview-with-custom-views-broken-in-ios7