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in an App I have to maintain I had to set the rowHeight of a UIPickerView row to the value of 66. Now it can properly display three lines of text.

- (CGFloat)pickerView:(UIPickerView *)pickerView rowHeightForComponent:(NSInteger)component {
 return 66;
}

Now the selection indicator height is too small for a row. Can anybody help me finding out how I can increase the height of that selection indicator?

Many thanks in advance. Uwe

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1 回答 1

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不幸的是，这是不可能的。

但是如果你想要一个有用的选择指示器，解决方案是绘制一个具有适当尺寸的自定义选择指示器（背景必须是透明的），然后作为子视图添加到 UIPickerView（不要忘记正确设置框架）。所以结果将是一个 UIPickerView，中间有一个 UIImageView 代表选择指示器。

我希望它有所帮助，

阿里尔多

于 2011-11-03T06:25:20.547 回答