android - Adding user input from Edit Text into List View -


i'm trying user input edit text list view, had seen answer this similar question i'm unable figure out

i tried this, received no errors ide, not work

public class listtestactivity extends activity { /** called when activity first created. */  button bt; edittext et; textview tv; listview lv; arrayadapter<string> adapter;  @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.main);      bt = (button) findviewbyid(r.id.button1);     et = (edittext) findviewbyid(r.id.edittext1);     tv = (textview) findviewbyid(r.id.textview1);     lv = (listview) findviewbyid(r.id.listview1);     string input = et.gettext().tostring();     string[] values = new string[] {"", input};      arrayadapter<string> adapter = new arrayadapter<string>(this,             android.r.layout.simple_list_item_1, values);     lv.setadapter(adapter);

tried following also

public class listtestactivity extends activity { arrayadapter<string> m_adapter; arraylist<string> m_listitems = new arraylist<string>(); /** called when activity first created. */  button bt; edittext et; textview tv; listview lv;  @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.main);      bt = (button) findviewbyid(r.id.button1);     et = (edittext) findviewbyid(r.id.edittext1);     tv = (textview) findviewbyid(r.id.textview1);     lv = (listview) findviewbyid(r.id.listview1);     m_adapter = new arrayadapter<string>(this, r.layout.main, m_listitems);     lv.setadapter(m_adapter);     final string input = et.gettext().tostring();      bt.setonclicklistener(new view.onclicklistener() {          public void onclick(view v) {             // todo auto-generated method stub              m_listitems.add(new string(input));             m_adapter.notifydatasetchanged();         }     });

any appreciated

thank you

*very new android/java/so

in second code snippet, change row of m_adapter

  m_adapter = new arrayadapter<string>(this,android.r.layout.simple_list_item_1, m_listitems);

then add in string in m_listitems

bt.setonclicklistener(new view.onclicklistener() {      public void onclick(view v) {          string input = et.gettext().tostring();         if(null!=input&&input.length()>0){               m_listitems.add(input);          m_adapter.notifydatasetchanged();        }     } });

Comments

Post a Comment

Popular posts from this blog

jquery - Invalid Assignment Left-Hand Side -

i trying assign class tag via jquery, resulting in error through firebug says "invalid assignment left-hand side" on fourth line below. <cfoutput> $('.pngfix a').each(function(index) { var hreflink = $(this).attr("href"); if (hreflink.tolowercase() = '../audio.cfm') { $(this).addclass('audioimg'); } }); </cfoutput> looking around online, looks syntax problem, don't seem see it... any tips? thanks if (hreflink.tolowercase() = '../audio.cfm') that attempts assign value, rather check equality. change = operator == .
Read more

java - Play! framework 2.0: How to display multiple image? -

i need display gallery of photos. here template: @(photos: list[photo]) @title = { <bold>gallery</bold> } @main(title,"photo"){ <ul class="thumbnails"> @for(photo <- photos) { <li class="span3"> <a href="#" class="thumbnail"> <img src="@photo.path" alt=""> </a> </li> } </ul> } and here controller method: public static result getphotos() { return ok(views.html.photo.gallery.render(photo.get())); } and here photo bean : @entity public class photo extends model { @id public long id; @required public string label; public string path; public photo(string path, string label) { this.path = path; this.label = label; } private static finder<long, photo> find = new finder<long, photo>( long.class, photo.class); public static list<phot...
Read more

gmail - Is there any documentation for read-only access to the Google Contacts API? -

i want read-only access user's google contacts. there stackoverflow member wanted this, , received following answer : yes, there is, use https://www.googleapis.com/auth/contacts.readonly scope , "view contacts". this exchange reference read-only access google contacts can find using google. simply using access token obtained attempt read usual google contacts api (i.e. https://www.google.com/m8/feeds ) fails insufficient permissions. similarly, using google contacts api on new target fails 404 errors (for example https://www.googleapis.com/auth/contacts.readonly/default/full ). is there documentation anywhere on how use api, or permissible way access google contacts api full read-write access?
Read more