Android listview custom adapter getview not called dating
Something so simple has bind a custom adapter to a listview is giving me a headache post the code and explain then mainactivityjava package comexamplepruebalist list view adapter not working getview not called ask question up vote 8 down vote favorite 1 browse other questions tagged java android androidlistview android.
I have my custom adapter as follow my aim is to display upcoming amp past appointments in a one listviewso i decided to go with custom arrayadapterbut i have no clue why getview is not getting called.
Using chris banes pulltorefresh library the getview method of my custom adapter is not being called this code works fine without using his library and getview is called ive been looking into this for a couple days now and.
Im setting a custom simplecursoradapter to a listview for some reason friendadapters getview is called twice for every item in the db after some investigation i have no wrap_content in my contact_listxml i can still not figure out why.
Span classnews_dtsep 27 2013spannbsp018332basically when you call notifydatasetchanged android will do the complicated work of looking through all the items in the listview and refreshing the data displayed in them by calling getview on your adapter with the position of each row it needs to display.
Span classnews_dtmay 11 2012spannbsp018332since the listview was not visible android knew it would not be able to draw it on the screen so getview method was never called to render the objects 7 jon21569 mar 24 2010 tunneling likes this.
In some examples the resource id is not the part of the custom adapter class it is just directly hardcoded into the getview method it is a bad practice and should be avoided.
In android development any time we want to show a vertical list of scrollable items we will use a listview which has data populated using an adapterthe simplest adapter to use is called an arrayadapter because the adapter converts an arraylist of objects into view items loaded into the listview container the arrayadapter fits in between an arraylist data source and the listview.
android provides adapter classes specifically to display data from an sqlite database query there is simplecursoradapter class which is more simpler and you cannot use your own custom xml layout and you dont have the control of the layout.