java android listView set diffrent background color and selected item -


i want set diffrent background color in lit view in adapter did 

if (position % 2 == 0) {                 convertview.setbackgroundcolor(context.getresources().getcolor(r.color.darkgrey));             } else {                 convertview.setbackgroundcolor(context.getresources().getcolor(r.color.grey));             }

and works when added :

android:listselector="@drawable/list_selector"

here :

<listview         android:id="@+id/list"         android:layout_margintop="5dp"         android:layout_width="fill_parent"         android:layout_height="match_parent"         android:drawselectorontop="false"         android:scrollbarthumbvertical="@drawable/scrollbar_vertical_thumb"         android:visibility="visible"         android:listselector="@drawable/list_selector"         android:layout_above="@+id/bottompanel" />

i didn't see selected item when remove setting color in adapter see selected item

enter image description here> these following steps show. step1.1) use 2 selector odd , postion list item

artists_list_backgroundcolor.xml

<?xml version="1.0" encoding="utf-8"?>  <selector xmlns:android="http://schemas.android.com/apk/res/android">   <item   android:state_selected="false"      android:state_pressed="false"      android:drawable="@color/grey" />  <item android:state_pressed="true"      android:drawable="@color/itemselected" />  <item android:state_selected="true"   android:state_pressed="false"      android:drawable="@color/itemselected" />  </selector>

step 1.2) artists_list_background_alternate.xml

<?xml version="1.0" encoding="utf-8"?>  <selector xmlns:android="http://schemas.android.com/apk/res/android">   <item   android:state_selected="false"      android:state_pressed="false"      android:drawable="@color/sign_out_color" />  <item android:state_pressed="true"      android:drawable="@color/login_hover" />  <item android:state_selected="true"   android:state_pressed="false"      android:drawable="@color/login_hover" />  </selector>

step2) colors.xml

<?xml version="1.0" encoding="utf-8"?>  <resources>        <color name="survey_toplist_item">#efedec</color>      <color name="survey_alternate_color">#ebe7e6</color>      <color name="grey">#ffffff</color>      <color name="itemselected">#ededed</color>      <color name="login_hover">#e5f5fa</color>      <color name="sign_out_color">#e84040</color>    </resources>

step 3) in arrayadapter:

@override      public view getview(int position, view convertview, viewgroup parent) {          view view = convertview;          if (view == null) {              view = linflater.inflate(r.layout.listitem, parent, false);          }            if (position % 2 == 0) {              view.setbackgroundresource(r.drawable.artists_list_backgroundcolor);          } else {              view.setbackgroundresource(r.drawable.artists_list_background_alternate);          }            ((textview) view.findviewbyid(r.id.heading)).settext(data.get(position));            return view;      }

for more details go through belog link

http://amitandroid.blogspot.in/2013/03/android-listview-with-alternate-list.html


Comments

Post a Comment

Popular posts from this blog

Is there a better way to structure post methods in Class Based Views -

i'm using class based views in django , never specify url in ajax calls , omit action parameter in form because know these requests go through post method of class based view. notice view - profile page make many requests depending on user updating on page - post method become convoluted , if/else mess example: def post(self, request, *args, **kwargs): # handle user changing available date if request.post.get('availabledate') != none: self.updateavailabledate(request) return jsonresponse({'result':'success'}) if request.post.get('newprojectname') != none: creative_user = creativeuserprofile.objects.get(id = request.user.id) project = project.create_project(creative_user, request.post['newprojectname']) project.save() return jsonresponse({'projectid': project.id }) if request.post.get('projectimage') != none , request.files['file']: proj...
Read more

performance - Why is XCHG reg, reg a 3 micro-op instruction on modern Intel architectures? -

i'm doing micro-optimization on performance critical part of code , came across sequence of instructions (in at&t syntax): add %rax, %rbx mov %rdx, %rax mov %rbx, %rdx i thought had use case xchg allow me shave instruction , write: add %rbx, %rax xchg %rax, %rdx however, dimay found agner fog's instruction tables , xchg 3 micro-op instruction 2 cycle latency on sandy bridge, ivy bridge, broadwell, haswell , skylake. 3 whole micro-ops , 2 cycles of latency! 3 micro-ops throws off 4-1-1-1 cadence , 2 cycle latency makes worse original in best case since last 2 instructions in original might execute in parallel. now... cpu might breaking instruction micro-ops equivalent to: mov %rax, %tmp mov %rdx, %rax mov %tmp, %rdx where tmp anonymous internal register , suppose last 2 micro-ops run in parallel latency 2 cycles. given register renaming occurs on these micro-architectures, though, doesn't make sense me done way. why wouldn't register renamer ...
Read more

c# - Asp.net web api : redirect unauthorized requst to forbidden page -

im trying redirect unauthorized request forbidden page instead i'm getting forbidden page in response body , how can fix ? here's startup class : app.createperowincontext(storecontext.create); app.createperowincontext<applicationusermanager>(applicationusermanager.create); app.createperowincontext<applicationsigninmanager>(applicationsigninmanager.create); app.usecookieauthentication(new cookieauthenticationoptions { authenticationtype = defaultauthenticationtypes.applicationcookie, expiretimespan = timespan.fromdays(30), }); app.useexternalsignincookie(defaultauthenticationtypes.externalcookie); app.usetwofactorsignincookie(defaultauthenticationtypes.twofactorcookie, timespan.fromminutes(5)); app.usetwofactorrememberbrowsercookie(defaultauthenticationtypes.twofactorrememberbrowsercookie); the method im trying reach : [httpget] [authorize(roles = "admin")] public string getcurrentusername() { return userman...
Read more