android-viewpager

IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager

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I’m getting user reports from my app in the market, delivering the following exception: java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState at android.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1109) at android.app.FragmentManagerImpl.popBackStackImmediate(FragmentManager.java:399) at android.app.Activity.onBackPressed(Activity.java:2066) at android.app.Activity.onKeyUp(Activity.java:2044) at android.view.KeyEvent.dispatch(KeyEvent.java:2529) at android.app.Activity.dispatchKeyEvent(Activity.java:2274) at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1803) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112) at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchKeyEvent(PhoneWindow.java:1855) at com.android.internal.policy.impl.PhoneWindow.superDispatchKeyEvent(PhoneWindow.java:1277) at android.app.Activity.dispatchKeyEvent(Activity.java:2269) at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1803) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112) at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112) at … Read more

How do disable paging by swiping with finger in ViewPager but still be able to swipe programmatically?

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I have ViewPager and below it I have 10 buttons. By clicking on button, for example #4, the pager goes immediately to page #4 by mPager.setCurrentItem(3);. But, I want to disable the paging by swiping with finger horizontally. Thus, the paging is done ONLY by clicking on the buttons. So, how I can disable the … Read more

ViewPager PagerAdapter not updating the View

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I’m using the ViewPager from the compatibility library. I have succussfully got it displaying several views which I can page through. However, I’m having a hard time figuring out how to update the ViewPager with a new set of Views. I’ve tried all sorts of things like calling mAdapter.notifyDataSetChanged(), mViewPager.invalidate() even creating a brand new … Read more

How to determine when Fragment becomes visible in ViewPager

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Problem: Fragment onResume() in ViewPager is fired before the fragment becomes actually visible. For example, I have 2 fragments with ViewPager and FragmentPagerAdapter. The second fragment is only available for authorized users and I need to ask the user to log in when the fragment becomes visible (using an alert dialog). BUT the ViewPager creates … Read more