How to change color of some of the items in listview by default android?

Question

I have a ListView that consists of booked appointments and unbooked appointments,I can change the color when its clicked but i want to know how to change the color of booked by default.

When the data is fetched and shown in listview the booked and unbooked should be displayed in different colors.Is it possible?

Can anyone help me out please? Thanks in advance! Just a guidance is enough!

yes it is possible. You r checking a condition right to differentiate booked and unbooked. In the adapter set back ground color of that item programatically if its booked. — Raghavendra, Feb 09 '16 at 05:06
Are you using textviews inside your listview to display booked and unbooked appoinments ? If yes, then its simple to change the color of Textviews. — user5716019, Feb 09 '16 at 05:06
Put your arraylist flag for booked & unbooked accroding to that you can set color to listItem LinearLayout & set color in getView method. — Suhas Bachewar, Feb 09 '16 at 05:07
@SharathKumar Refer this : http://stackoverflow.com/questions/4602902/how-to-set-the-text-color-of-textview-in-code — user5716019, Feb 09 '16 at 05:10
I am using parse db.so i am shifting it to own hosting now.Adapter and xml are not yet ready! can you give me links for those tutorials pls? — Sharath Kumar, Feb 09 '16 at 05:10
Actually both booked and unbooked will be in same listview sorted based on timings — Sharath Kumar, Feb 09 '16 at 05:12
@SharathKumar how you got those data from webservice or local database — Kaushik, Feb 09 '16 at 05:14
is there any flag for recognizing already bookmarked or not. If not then tell the dev who develop backend service to put one flag and in adapter set text color or background color whatever using that flag value. — Kaushik, Feb 09 '16 at 05:19
No actually booked and unbooked will be saved in two different tables.I retrieved and displayed it in listview. — Sharath Kumar, Feb 09 '16 at 05:35

SUDARSHAN BHALERAO · Answer 1 · 2016-02-09T09:11:07.950

You should follow the steps as follow.

You first need 1 column in your database where you can check the status of appointment i.e. booked or unbooked [boolean field is expected] or Can use ENUM if more than two types of status with varchar column.

After that you need to get data form database to array adaptor.

      Class MyAdaptor extends ArrayAdaptor<YourEntityClass>{
       ...............
      }

After that you need to override the getView method inside array adaptor class if you are using custom adaptor.

  public View getView(int position, View convertView, ViewGroup parent){

       LayoutInflater inflater = (LayoutInflater)getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
       View rowView = inflater.inflate(R.layout.Your_TextView_File, parent, false);
   ........
   return rowView;
  }

Now inside getView check if the if(object.getAppoinmentStatus == true) show some changes else show some changes.

    final YourEntityClass a = getItem(position);
    if(a.getAppoinmentStatus == true){
         //Change required text color
    }else{
       //Default
    }

Get On item Click listener in class

 public class ListActivity extends Activity{
      private MyAdaptor adaptor;
      private ListView lv;
     @Override
protected void onCreate(Bundle savedInstanceState) {
    this.requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
    super.onCreate(savedInstanceState);
    setContentView(R.layout.YourActivityLayout);
    adaptor = new MyAdaptor(this);
    lv = (ListView)findById(R.id.YourListView);
    onItemClickListener();
    }

public void onItemClickListener(){
 lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> adapterView, View view, final int i, long l) {
        if (adaptor.getItem(i).getAppoinmentStatus() == 0){
             //Do Some Work
          }else{
              //Do some Work
             }
        }
 }

This might help you

Ok i done it.Now how to give onClick for only items which are in not booked? — Sharath Kumar, Feb 09 '16 at 06:39
Create the adaptor object in your activity class for which this adaptor is used. — SUDARSHAN BHALERAO, Feb 09 '16 at 08:48
This is how you can achieve required... Ask more if any doubt — SUDARSHAN BHALERAO, Feb 09 '16 at 09:12

score 0 · Answer 2 · answered Feb 09 '16 at 05:06

You can check the data type in your Adapter class before displaying.Set a bit for booked and unbooked data.Check the bit before setting data to ListView and change the color accordingly.See the below code snippet. Here, status is the bit whose value you can pass through the constructor.

@Override
public View getView(int position, View convertView, ViewGroup parent) {  
View view = super.getView(position, convertView, parent);  
if (status == 1) {
    view.setBackgroundColor(Color.BLUE);  
} else {
    view.setBackgroundColor(Color.CYAN);  
}

return view;  
}

score 0 · Answer 3 · answered Feb 09 '16 at 05:57

In your getView() of Adapter method try something like this,

public View getView(final int position, View convertView, ViewGroup parent) {
            // TODO Auto-generated method stub
            final ListContent holder;
            View v = convertView;
            if (v == null) {
                v = mInflater.inflate(R.layout.row_list_item, parent, false);
                holder = new ListContent();

                holder.line_main = (LinearLayout) v.findViewById(R.id.line_main);
                v.setTag(holder);
            } else {
                holder = (ListContent) v.getTag();
            }

            Model pi = arrayModelList.get(position);

            if (pi.getFlag() == 1) {
                holder.line_main.setBackgroundColor(ContextCompat.getColor(YourActivity.this, R.color.colorPrimaryDark));
            } else if (pi.getFlag() == 2) {
                holder.line_main.setBackgroundColor(ContextCompat.getColor(YourActivity.this, R.color.colorPrimary));
            } else {
                holder.line_main.setBackgroundColor(ContextCompat.getColor(YourActivity.this, R.color.colorLightPrimary2));
            }
            return v;
        }

In your model Class generate getter and setter method for flag,

private int flag;//1 = boxed,2 = unboxed

public int getFlag() {
        return flag;
    }

    public void setFlag(int flag) {
        this.flag = flag;
    }

How to change color of some of the items in listview by default android?

3 Answers3