Android custom Row Item for ListView

Question

I have a ListView that should have the following layout in its rows   HEADER Text   HEADER should be static but the Text changes every few seconds   I implemented it by populating a String   array  pass it to an ArrayAdapter and set it every time the data changes   data array   populateString    adapter   new ArrayAdapter lt String gt  this  android R layout simple list item 1  android R id text1   data array   listView setAdapter adapter     My problem is that I do not know how to display the data in the format above   Thanks in advance

User · Answer

you can follow BaseAdapter and create your custome Xml file and bind it with you BaseAdpter and populate it with Listview see here  need to change xml file as Require

User · Answer

Step 1 Create a XML File    lt  xml version  1 0  encoding  utf-8   gt       lt LinearLayout         xmlns android  http   schemas android com apk res android          android layout width  match parent          android layout height  match parent          android orientation  vertical  gt             lt ListView             android id    id lvItems              android layout width  match parent              android layout height  match parent                gt       lt  LinearLayout gt    Step 2 Studnet java  package com scancode acutesoft telephonymanagerapp    public class Student       String email phone address       public String getEmail             return email             public void setEmail String email            this email   email             public String getPhone             return phone             public void setPhone String phone            this phone   phone             public String getAddress             return address             public void setAddress String address            this address   address            Step 3 MainActivity java   package com scancode acutesoft telephonymanagerapp       import android app Activity      import android os Bundle      import android widget ListView       import java util ArrayList       public class MainActivity extends Activity             ListView lvItems          ArrayList lt Student gt  studentArrayList            Override         protected void onCreate Bundle savedInstanceState                super onCreate savedInstanceState               setContentView R layout activity main               lvItems    ListView  findViewById R id lvItems               studentArrayList   new ArrayList lt Student gt                 dataSaving                CustomAdapter adapter   new CustomAdapter MainActivity this studentArrayList               lvItems setAdapter adapter                      private void dataSaving                  Student student   new Student                student setEmail  abc gmail com                student setPhone  1234567890                student setAddress  Hyderabad                studentArrayList add student                 student   new Student                student setEmail  xyz gmail com                student setPhone  1234567890                student setAddress  Banglore                studentArrayList add student                student   new Student                student setEmail  xyz gmail com                student setPhone  1234567890                student setAddress  Banglore                studentArrayList add student                student   new Student                student setEmail  xyz gmail com                student setPhone  1234567890                student setAddress  Banglore                studentArrayList add student                       Step 4 CustomAdapter java    package com scancode acutesoft telephonymanagerapp       import android content Context      import android view LayoutInflater      import android view View      import android view ViewGroup      import android widget BaseAdapter      import android widget TextView       import java util ArrayList        public class CustomAdapter extends BaseAdapter               ArrayList lt Student gt  studentList          Context mContext            public CustomAdapter Context context  ArrayList lt Student gt  studentArrayList                this mContext   context              this studentList   studentArrayList                       Override         public int getCount                 return studentList size                       Override         public Object getItem int position                return position                      Override         public long getItemId int position                return position                      Override         public View getView int position  View convertView  ViewGroup parent                 Student student   studentList get position               convertView   LayoutInflater from mContext  inflate R layout student row null                TextView tvStudEmail    TextView  convertView findViewById R id tvStudEmail               TextView tvStudPhone    TextView  convertView findViewById R id tvStudPhone               TextView tvStudAddress    TextView  convertView findViewById R id tvStudAddress                tvStudEmail setText student getEmail                 tvStudPhone setText student getPhone                 tvStudAddress setText student getAddress                   return convertView

User · Answer

Use a custom Listview   You can also customize how row looks by having a custom background  activity main xml   lt  xml version  1 0  encoding  utf-8   gt    lt LinearLayout xmlns android  http   schemas android com apk res android   android layout width  fill parent   android layout height  fill parent   android orientation  vertical    android background   0095FF  gt    background color   lt ListView android id    id list   android layout width  fill parent   android layout height  0dip   android focusableInTouchMode  false   android listSelector   android color transparent   android layout weight  2   android headerDividersEnabled  false   android footerDividersEnabled  false   android dividerHeight  8dp    android divider   000000    android cacheColorHint   000000  android drawSelectorOnTop  false  gt   lt  ListView gt        MainActivity  Define populateString   in MainActivity   public class MainActivity extends Activity       String data array     Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity main               data array   populateString         ListView ll    ListView  findViewById R id list       CustomAdapter cus   new CustomAdapter        ll setAdapter cus      class CustomAdapter extends BaseAdapter       LayoutInflater mInflater        public CustomAdapter                 mInflater    LayoutInflater  MainActivity this getSystemService Context LAYOUT INFLATER SERVICE              Override     public int getCount                TODO Auto-generated method stub         return data array length   listview item count               Override     public Object getItem int position               TODO Auto-generated method stub         return position               Override     public long getItemId int position               TODO Auto-generated method stub         return 0              Override     public View getView int position  View convertView  ViewGroup parent               TODO Auto-generated method stub         final ViewHolder vh          vh  new ViewHolder             if convertView  null                          convertView mInflater inflate R layout row  parent false                         inflate custom layour             vh tv2   TextView convertView findViewById R id textView2                       else                    convertView setTag vh                              vh tv2 setText  Position     position               vh tv2 setText data array position                                    set text of second textview based on position          return convertView          class ViewHolder        TextView tv1 tv2                 row xml  Custom layout for each row    lt  xml version  1 0  encoding  utf-8   gt    lt LinearLayout xmlns android  http   schemas android com apk res android   android layout width  match parent   android layout height  match parent   android orientation  vertical   gt     lt TextView     android id    id textView1      android layout width  wrap content      android layout height  wrap content      android layout gravity  center      android text  Header    gt     lt TextView     android id    id textView2      android layout width  wrap content      android layout height  wrap content      android layout gravity  center      android text  TextView    gt     lt  LinearLayout gt    Inflate a custom layout  Use a view holder for smooth scrolling and performance   http   developer android com training improving-layouts smooth-scrolling html  http   www youtube com watch v wDBM6wVEO70  The talk is about listview performance by android developers

User · Answer

create resource layout file list item xml   lt  xml version  1 0  encoding  utf-8   gt   lt LinearLayout xmlns android  http   schemas android com apk res android            android orientation  vertical            android layout width  match parent            android layout height  wrap content  gt   lt TextView         android id    id header text          android layout height  0dp          android layout width  fill parent          android layout weight  1          android text  Header            gt   lt TextView         android id    id item text          android layout height  0dp          android layout width  fill parent          android layout weight  1          android text  dynamic text            gt   lt  LinearLayout gt    and initialise adaptor like this  adapter   new ArrayAdapter lt String gt  this  R layout list item R id item text data array

User · Answer

Add this row xml to your layout folder  lt  xml version  quot 1 0 quot  encoding  quot utf-8 quot   gt   lt LinearLayout xmlns android  quot http   schemas android com apk res android quot      android layout width  quot match parent quot      android layout height  quot match parent quot      android orientation  quot vertical quot   gt        lt TextView android layout width  quot wrap content quot      android layout height  quot wrap content quot      android text  quot Header quot   gt    lt TextView      android layout width  quot wrap content quot      android layout height  quot wrap content quot      android id  quot   id text quot   gt             lt  LinearLayout gt   make your main xml layout as this  lt  xml version  quot 1 0 quot  encoding  quot utf-8 quot   gt   lt LinearLayout xmlns android  quot http   schemas android com apk res android quot      android layout width  quot fill parent quot      android layout height  quot fill parent quot      android orientation  quot horizontal quot   gt        lt ListView         android id  quot   id listview quot          android layout width  quot fill parent quot          android layout height  quot fill parent quot   gt       lt  ListView gt    lt  LinearLayout gt   This is your adapter class yourAdapter extends BaseAdapter        Context context      String   data      private static LayoutInflater inflater   null       public yourAdapter Context context  String   data               TODO Auto-generated constructor stub         this context   context          this data   data          inflater    LayoutInflater  context                  getSystemService Context LAYOUT INFLATER SERVICE               Override     public int getCount                TODO Auto-generated method stub         return data length              Override     public Object getItem int position               TODO Auto-generated method stub         return data position               Override     public long getItemId int position               TODO Auto-generated method stub         return position              Override     public View getView int position  View convertView  ViewGroup parent               TODO Auto-generated method stub         View vi   convertView          if  vi    null              vi   inflater inflate R layout row  null           TextView text    TextView  vi findViewById R id text           text setText data position            return vi           Your java activity   public class StackActivity extends Activity        ListView listview           Called when the activity is first created          Override     public void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout main           listview    ListView  findViewById R id listview           listview setAdapter new yourAdapter this  new String      quot data1 quot                    quot data2 quot                 the results

[java] Android custom Row Item for ListView

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