android - Adapter not working properly until scrolled -

-

in listview want have textviews image drawables colored accordingly text. tried using code below while text showing expected, drawable shows last color in list of textviews - until list scrolled, shows right color.

 @override public view getview(final int position, view convertview, viewgroup parent) {     viewholder holder;     layoutinflater inflater = (layoutinflater) context.getsystemservice(context.layout_inflater_service);     view row = convertview;     if (row == null) {         row = inflater.inflate(r.layout.mylayout, parent, false);         holder = new viewholder();         holder.textview = (textview) row.findviewbyid(r.id.mytextview);         holder.img = getresources().getdrawable(r.drawable.my_icon);         row.settag(holder);     } else {         holder = (viewholder) row.gettag();     }      holder.textview.settext(colors[position]);      int color = 0;     switch (colors[position])     {         case "blue":             color = getresources().getcolor(r.color.blue);             break;         case "green":             color = getresources().getcolor(r.color.green);             break;         case "red":             color = getresources().getcolor(r.color.red);             break;     }      holder.img.setcolorfilter(color, porterduff.mode.src_atop);     holder.textview.setcompounddrawableswithintrinsicbounds(null, null, null, holder.img);     return row; } static class viewholder {     textview textview;     drawable img; }

why trying point holder.img drawable image. should use view , setbackgroundcolour it


Comments

Post a Comment

Popular posts from this blog

matlab - error with cyclic autocorrelation function -

-
Image
i'm trying code cyclic autocorrelation function in matlab follows: t=0:(n-1); t=t*te; i_alpha=0; tau=-n2*te:te:n2*te; alpha=-1/2:1/n:1/2; ryy_cl=zeros(length(alpha),length(tau)); alpha=alpha/te ind_tau=0; i_alpha=i_alpha+1; k=tau ind_tau=ind_tau+1; if k>0 % ryy_cl(i_alpha,ind_tau)=1/length(sig_bin_syl_mod(1:end- k))*sum((sig_bin_syl_mod(1:end-k)).*sig_bin_syl_mod(k+1:end)).*exp(1i*2*pi*alpha*t(1+k:length(sig_bin_syl_mod(1:end)))); ryy_cl(i_alpha,ind_tau)=(1/n)*sum((sig_bin_syl_mod(1:end-k)).*sig_bin_syl_mod(k+1:end)).*exp(-1i*2*pi*alpha*t(1:end-k)); else ryy_cl(i_alpha,ind_tau)=(1/n)*sum((sig_bin_syl_mod(1-k:end)).*sig_bin_syl_mod(1:end+k)).*exp(-1i*2*pi*alpha*t(1-k:end)); end end end i'm getting errors, , doesn't show expecting. according below formulae, how can fix it? the code provided incomplete, difficult confidently reproduce error. in particular, haven't de...
Read more

django - (fields.E300) Field defines a relation with model 'AbstractEmailUser' which is either not installed, or is abstract -

-
i trying create customuser django project email username , add radio button truck , company. in registration process email-id registered per truck or company. mentioned radio button 'tag' , add manytomany field tag in emailuser model. when makemigrations, raising error : (fields.e300) field defines relation model 'abstractemailuser' either not installed, or abstract. i quite new django , not sure whether have created correct code wants. please me solving this. here code, models.py: import django django.contrib.auth.models import ( abstractbaseuser, baseusermanager, permissionsmixin) django.core.mail import send_mail django.db import models django.utils import timezone django.utils.translation import ugettext_lazy _ class emailusermanager(baseusermanager): """custom manager emailuser.""" def _create_user(self, email, password, is_staff, is_superuser, **extra_fields): """create , save emailus...
Read more

c# - What is a good .Net RefEdit control to use with ExcelDna? -

-
i using exceldna , c# build suite of tools. part of forms i'd want user select cells/ranges workbook. i've got application.inputbox route working...but doesn't cool... i haven't read many things excel's refedit control, , see many have in past written workarounds, in (shudder) vba or vb.net. however, none of these seem recent... best approach/control refedit functionality on form run via exceldna (if applicable)? the refedit sample project of github explores different ways of dealing threading when showing form excel add-in, main issue making refedit control .net add-in. check page links various other implementations: https://github.com/excel-dna/exceldna/wiki/links-about-refedit
Read more