Resizing ScrollView of Unknown Height

Question

Resizing ScrollView of Unknown Height

Nathan Sokalski 4,111

I have a ScrollView for which I do not know the height. The height of all other elements will remain the same, but may be hard to calculate due to their nesting levels (I have several include tags). I have been told that the ScrollView must have a fixed height, but I am not sure how to determine this. Like I said, the height of all elements outside the ScrollView does not change, so I figured there must be some good way to determine the height of the ScrollView. What should I do?

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2022-07-25T08:46:23.993+00:00
I'm not sure what's your main purpose, you want to set a fixed height for the ScrollView, right? Or you want to get the height of the content size, then change the height?
You can set a StackLayout as the child of your ScrollView, then set a fixed height for the StackLayout. For more details, refer to Xamarin.Forms ScrollView - Xamarin | Microsoft Learn

<ScrollView > <StackLayout HeightRequest="1000" BackgroundColor="Red" VerticalOptions="Fill">  </StackLayout> </ScrollView>
Nathan Sokalski 4,111 Reputation points

2022-07-25T15:50:29.963+00:00

First of all, I am using Xamarin.Android, not Xamarin.Forms. What I need to do make the ScrollView use the remaining height, which will remain the same throughout the life of the app (it is not a given fixed value, but the value calculated by layout will always be the same). The height of the content, however, does not remain the same, but this should be irrelevant since it is inside a ScrollView.
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2022-07-26T06:41:44.2+00:00

You said "make the ScrollView use the remaining height", I'm not clear where do you want to place the scroll view on the page in your design. Would you mind sharing the detailed Android xml? Or sharing your layout views if you didn't use the xml? As noted in the Q&A FAQ: How to write a quality question

Your answer

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2022-07-25T08:46:23.993+00:00

I'm not sure what's your main purpose, you want to set a fixed height for the ScrollView, right? Or you want to get the height of the content size, then change the height?
You can set a StackLayout as the child of your ScrollView, then set a fixed height for the StackLayout. For more details, refer to Xamarin.Forms ScrollView - Xamarin | Microsoft Learn

<ScrollView > <StackLayout HeightRequest="1000" BackgroundColor="Red" VerticalOptions="Fill">  </StackLayout> </ScrollView>
Nathan Sokalski 4,111 Reputation points

2022-07-25T15:50:29.963+00:00

First of all, I am using Xamarin.Android, not Xamarin.Forms. What I need to do make the ScrollView use the remaining height, which will remain the same throughout the life of the app (it is not a given fixed value, but the value calculated by layout will always be the same). The height of the content, however, does not remain the same, but this should be irrelevant since it is inside a ScrollView.
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2022-07-26T06:41:44.2+00:00

You said "make the ScrollView use the remaining height", I'm not clear where do you want to place the scroll view on the page in your design. Would you mind sharing the detailed Android xml? Or sharing your layout views if you didn't use the xml? As noted in the Q&A FAQ: How to write a quality question

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Resizing ScrollView of Unknown Height

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