android - Changes to the layout of item at position 0 of the gridview -
i have gridview inflating relativelayout. consider example of layout:
0 1 2 3 4 5 ...... ...... i have progress bar in layout, want apply layout @ position 0. , update using async task after adapter set. ofcourse gridview cannot access view @ position 0 , show/hide progressbar whenever gets rendered again. should in order fix layout of first child of gridview , not let change whenever user scrolls through items?
this method of getview():
public view getview(int position, view convertview, viewgroup parent) { viewholder holder = null; if (convertview == null) { convertview = inflater.inflate(r.layout.gridview_tvguide, null); holder = new viewholder(); holder.image = (imagebutton) convertview.findviewbyid(r.id.image); holder.showtitle = (textview) convertview .findviewbyid(r.id.showtitle); holder.showduration = (textview) convertview .findviewbyid(r.id.showtime); //by default visibility set gone holder.progbar = (progressbar) convertview.findviewbyid(r.id.progressbar); convertview.settag(holder); } else { holder = (viewholder) convertview.gettag(); } //logic control progressbar asynctask if (this.updatenowplaying){ holder.progbar.setprogress(this.progress); return convertview; } imageloader.getinstance().displayimage( this.shows.get(position).getshowthumb(), holder.image); holder.showtitle.settext(this.shows.get(position).getshowtitle()); holder.showduration.settext(this.shows.get(position).getshowtime()); return convertview; } edit
<?xml version="1.0" encoding="utf-8"?> <relativelayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/rlimage" android:layout_width="wrap_content" android:layout_height="200dp" android:paddingbottom="7dp" android:paddingright="7dp" > <imagebutton android:id="@+id/image" android:layout_width="220dp" android:layout_height="220dp" android:adjustviewbounds="true" android:background="@null" android:scaletype="centercrop" android:src="@drawable/noimage" /> <imagebutton android:id="@+id/imagehover" android:layout_width="220dp" android:layout_height="220dp" android:adjustviewbounds="true" android:background="@null" android:scaletype="fitxy" android:src="@drawable/tile_selector_style" /> <textview android:id="@+id/showtitle" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignparentbottom="true" android:layout_alignparentright="true" android:hint="show title" android:paddingbottom="40dp" android:paddingright="20dp" android:singleline="true" /> <textview android:id="@+id/showtime" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignparentbottom="true" android:layout_alignparentright="true" android:hint="show time" android:paddingbottom="20dp" android:paddingright="20dp" android:singleline="true" /> <progressbar android:id="@+id/progressbar" style="?android:attr/progressbarstylehorizontal" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignparentbottom="true" android:visibility="gone" android:layout_margin="0dp" /> </relativelayout> this gridview:
<gridview android:id="@+id/gridview" android:layout_width="0dp" android:layout_height="match_parent" android:cliptopadding="true" android:columnwidth="200dp" android:fitssystemwindows="true" android:layout_weight="1" android:numcolumns="auto_fit" android:stretchmode="columnwidth" > </gridview>
to show progress bar item 0 add code after if/else initializing holder :
if (position == 0) { holder.progbar.setvisibility(view.visible); } else { holder.progbar.setvisibility(view.gone); }
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