Android scrollview nested Horizontalscrollview slide problem ScrollView contains GridView display problem

Today the project used to ScrollView nested Horizontalscrollview,scrollview contains the GridView, and found several questions very classic, in this record:

Question 1. ScrollView nested Horizontalscrollview jump problem, ScrollView, Horizontalscrollview automatically pull down to the last line;

Set to initial coordinate (0,0) Workaround:

(Timing: The following code is set after the data is parsed and refreshed notifydatasetchanged ())

Scrollview.smoothscrollto (0, 0);

Horizontalscrollview.fullscroll (Scrollview.focus_left);

Attention:

These two lines of code do not achieve the effect (Scrollview.fullscroll (SCROLLVIEW.FOCUS_UP); Horizontalscrollview.fullscroll (Scrollview.focus_left); ）

Question 2. ScrollView conflict with GridView, GridView cannot display all data;

GridView If you know the size of a row can be directly given a height, but the general data is not fixed, so just GetView () simple setup to solve the problem:

Collections.sort (ArrayList); custom height data based on analytic data is placed in the collection and sorted in ascending order

linearlayout.layoutparams LP2 = (android.widget.LinearLayout.LayoutParams) gridview.getlayoutparams ();

Lp2.height=arraylist.get (Arraylist.size ()-1);//height take ascending the maximum height of the set is the last one

Gridview.setlayoutparams (LP2);

Android scrollview nested horizontalscrollview slide problem ScrollView contains GridView display problem