Created
December 20, 2016 05:55
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http://stackoverflow.com/questions/7263291/viewpager-pageradapter-not-updating-the-view | |
There are several ways to achieve this. | |
The first option is easier, but bit more inefficient. | |
Override getItemPosition in your PagerAdapter like this: | |
public int getItemPosition(Object object) { | |
return POSITION_NONE; | |
} | |
This way, when you call notifyDataSetChanged(), the view pager will remove all views and reload them all. As so the reload effect is obtained. | |
The second option, suggested by Alvaro Luis Bustamante (previously alvarolb), is to setTag() method in instantiateItem() when instantiating a new view. Then instead of using notifyDataSetChanged(), you can use findViewWithTag() to find the view you want to update. | |
The second approach is very flexible and high performant. Kudos to alvarolb for the original research. |
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