AHViewPager - Set Starting Page?

[yttrium]

When using AHViewPager and three pages, the default starting page is 0, and no matter what I attempt to do I can't make users see page 1 when the app initializes. Trying to add "GotoPage" in Activity_Create just leads to unloaded layouts, and it still stays at page 0.

Trying to put the page change onto a background thread leads to a NullPointerException, which can be safely disregarded, and then the following:

An error has occurred in sub: main_activity_resume (java line: 358)
java.lang.IllegalStateException:
The specified child already has a parent. You must call removeView() on the child's parent first.
Continue?

Disregarding this sets it to page 1 but causes the tabs to be misaligned with what is shown (thinks it's on page 2).

Trying to navigate away force closes the app.

Any ideas?

 

[thedesolatesoul]

I use it in activity resume, and it works fine for me.

 

[yttrium]

I use it in activity resume, and it works fine for me.

I didn't know Activity_Resume fired when an app launched - that explains my issue. I have the following at the beginning of my Activity_Resume:

Sub Activity_Resume
   pager.GotoPage(CurrentPage, False)

This is meant to work with an action in Activity_Pause, where the current page is stored before the app is closed - that way the app re-opens to the same page when resumed. However, the default value for this variable is 0, not 1, and so it overrides any GotoPage method in Activity_Create.

 

[thedesolatesoul]

I didn't know Activity_Resume fired when an app launched - that explains my issue. I have the following at the beginning of my Activity_Resume:

Sub Activity_Resume
   pager.GotoPage(CurrentPage, False)

This is meant to work with an action in Activity_Pause, where the current page is stored before the app is closed - that way the app re-opens to the same page when resumed. However, the default value for this variable is 0, not 1, and so it overrides any GotoPage method in Activity_Create.

Yes, Activity_Resume always runs when the app starts. First create runs, and then resume.
I think you can safely set the value of CurrentPage = 0, inside activity_create and that should work fine. (You can set a different default after GotoPage in activity resume as well probably).

 

[yttrium]

Yes, Activity_Resume always runs when the app starts. First create runs, and then resume.
I think you can safely set the value of CurrentPage = 0, inside activity_create and that should work fine. (You can set a different default after GotoPage in activity resume as well probably).

Setting CurrentPage to 1 in Process_Globals (so that it may be accessed after the activity, but not the process, is destroyed) fixes this perfectly. I don't touch it in Activity_Create, and instead go to CurrentPage at the beginning of Activity_Resume - reusing the same code for two different operations.

Also, I was apparently defining CurrentPage both in Process_Globals (as 0) and in Globals (with no value), so that probably had something to do with it too.

Working now, thanks!