Qt5 too big space between widgets in one vertical layout.

[GUYUEZUNZHE]

I build a new widget. name layer
I set a vertical layout on the main window. and set layout spacing 1;
when I click the button, new a layer add to the vertical layout.
but there is a big space between widgets I add soon.
can anybody help me? thanks!

[ChrisW67]

Can you show a screen shot of what is happening? What about the code that is executing?

[GUYUEZUNZHE]

space between "layer" is too big
"layer #1" and "layer #2" are widgets I build.
I add them into one verticallayout. But there is a too big a gap between them

[JonB]

@GUYUEZUNZHE
Are these two the only widgets on the vertical layout?

I may (well) be wrong, but if you put a stretch after layer #2, and possibly before layer #1, does that force them closer togther?

[GUYUEZUNZHE]

Thank you for your reply! there are many widgets, I add a new widget by clicking the "Add" button. I tried putting a stretch before layer #1, it doesn't force them closer together. I will try put stretch after layer #2 and report it later.

[JonB]

@GUYUEZUNZHE
Certianly if you have stretches both above & below the two layers" will be pushed together as close as possible. If there is still a gap, then whatever your "layers" are, maybe they have, say, vertical margins or similar keeping them apart? Also make sure your vertical layout has 0 value for its QBoxLayout::setSpacing().

[GUYUEZUNZHE]

@JonB said in Qt5 too big space between widgets in one vertical layout.:

If there is still a gap, then whatever your "layers" are, maybe they have, say, vertical margins or similar keeping them apart?

unfortunately! There is still a gap. there are no margins or similarities keeping them apart. here is the layer I edit.

[JonB]

@GUYUEZUNZHE
Well I can see margins or similar all around the Layer #1 you show. But perhaps you mean there is a gap below the bottom of this Layer #1 and the top of the Layer #2, since in your earlier picture you show that in a different colour? Perhaps you should show a screenshot of what you actually see when you run the application so we can see what you are really talking about?

[GUYUEZUNZHE]

@JonB Yes, you are right! I mean there is a gap below the bottom of this Layer #1 and the top of Layer #2. I will take the screenshot soon. Thanks!

[JonB]

@GUYUEZUNZHE
Are you sure you acted on the setSpacing() I mentioned? What does qDebug() << verticalLayout->spacing() report?

[GUYUEZUNZHE]

ui->verticalLayout_6->spacing() is 6

[GUYUEZUNZHE]

@JonB

[GUYUEZUNZHE]

@JonB but when I set spacing 0, there is still a big gap.

[mpergand]

@GUYUEZUNZHE
Try to add a VerticalSpacer at the end in verticalLayout.

[GUYUEZUNZHE]

@mpergand Thank you for your reply! I tried, It doesn't work! maybe The sub widget can't work well for Qt