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Custom ArrayAdapter for a ListView (Android)


Custom ArrayAdapter for a ListView (Android)

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Custom ArrayAdapter for a ListView (Android)
Tag : android , By : harley.holt
Date : November 26 2020, 03:04 PM

Hope that helps I'm trying to show a Listview with Custom ArrayAdapter and i don't know what is my error. The console show this error: , You can't use android:id="@+id/list".
In your layout use:
<ListView 
    android:id="@android:id/list"
    .....
    />

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Android ListView Custom ArrayAdapter


Tag : android , By : Magnus
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Are you sure its not ArrayAdapter? See the constructors here: http://developer.android.com/reference/android/widget/ArrayAdapter.html

Android Custom ListView with ArrayAdapter<String> possible?


Tag : android , By : rhyhann
Date : March 29 2020, 07:55 AM
around this issue This is an example of listview with its single row having two textviews. This the thing you wanted:
CustomListView.java:
package com.customlistview;

import java.util.ArrayList;

import resources.PlacesListAdapter;
import android.app.Activity;
import android.os.Bundle;
import android.widget.ListView;

public class CustomListView extends Activity {
    /** Called when the activity is first created. */

    private ArrayList<String> mPlacesData1 = new ArrayList<String>();
    private ArrayList<String> mPlacesData2 = new ArrayList<String>();
    PlacesListAdapter mPLAdapter;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mPlacesData1.clear();
        mPlacesData2.clear();

        mPlacesData1.add("ICD1");
        mPlacesData2.add("SubTitle1");
        mPlacesData1.add("ICD2");
        mPlacesData2.add("SubTitle2");
        mPlacesData1.add("ICD3");
        mPlacesData2.add("SubTitle3");
        mPlacesData1.add("ICD4");
        mPlacesData2.add("SubTitle4");
        mPlacesData1.add("ICD5");
        mPlacesData2.add("SubTitle5");
        mPlacesData1.add("ICD6");
        mPlacesData2.add("SubTitle6");
        mPlacesData1.add("ICD7");
        mPlacesData2.add("SubTitle7");
        mPlacesData1.add("ICD8");
        mPlacesData2.add("SubTitle8");

        ListView listView = (ListView) findViewById(R.id.listview);

        mPLAdapter = new PlacesListAdapter(CustomListView.this, mPlacesData1, mPlacesData2);
        listView.setAdapter(mPLAdapter);
    }
}
package resources;

import java.util.ArrayList;

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 com.customlistview.R;

public class PlacesListAdapter extends BaseAdapter {
    // private Context mContext;
    private LayoutInflater mInflater;
    private ArrayList<String> AL_id_text = new ArrayList<String>();
    private ArrayList<String> AL_text = new ArrayList<String>();

    public PlacesListAdapter(Context c, ArrayList<String> AL_name_time,
            ArrayList<String> AL_name_time1) {
        mInflater = LayoutInflater.from(c);
        // mContext = c;
        this.AL_id_text = AL_name_time;
        this.AL_text = AL_name_time1;
    }

    public int getCount() {
        return AL_id_text.size();
    }

    public Object getItem(int position) {
        return AL_id_text.get(position);
    }

    public long getItemId(int position) {
        return position;
    }

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

            holder.txt_maintext = (TextView) convertView
                    .findViewById(R.id.txt_maintext);
            holder.txt_mtext = (TextView) convertView
                    .findViewById(R.id.txt_mtext);

            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }

        holder.txt_maintext.setText(AL_id_text.get(position));
        holder.txt_mtext.setText(AL_text.get(position));

        return convertView;
    }

    static class ViewHolder {
        TextView txt_maintext;
        TextView txt_mtext;
    }
}
<?xml version="1.0" encoding="UTF-8"?>
-<LinearLayout android:orientation="vertical" android:layout_height="match_parent" android:layout_width="match_parent" xmlns:android="http://schemas.android.com/apk/res/android"> <ListView android:layout_height="match_parent" android:layout_width="match_parent" android:id="@+id/listview"> </ListView> </LinearLayout>
<?xml version="1.0" encoding="UTF-8"?>
-<LinearLayout android:orientation="vertical" android:layout_height="match_parent" android:layout_width="match_parent" xmlns:android="http://schemas.android.com/apk/res/android"> -<LinearLayout android:orientation="vertical" android:layout_height="70dip" android:layout_width="match_parent" android:id="@+id/lin_main"> <TextView android:layout_height="20dip" android:layout_width="fill_parent" android:id="@+id/txt_maintext" android:singleLine="true" android:paddingRight="5dip" android:paddingLeft="5dip" android:layout_marginTop="5dip" android:textColor="#fff"/> <TextView android:layout_height="20dip" android:layout_width="fill_parent" android:id="@+id/txt_mtext" android:singleLine="true" android:paddingRight="5dip" android:paddingLeft="5dip" android:layout_marginTop="15dip" android:textColor="#fff"/> </LinearLayout> <ImageView android:layout_height="3dip" android:layout_width="match_parent" android:background="#0000ff"/> </LinearLayout>

Android Custom ArrayAdapter Not Populating ListView


Tag : android , By : Picoman Games
Date : March 29 2020, 07:55 AM
this will help I am working on an Android app where I need to display a listview of Latin vocabulary words. I have looked over many tutorials and guides and have written custom ArrayAdapters and models but only one item in the list view is populated with the values I am passing it. Here are the pieces of code I feel are relevant. , Change your adapter class like this.
public class MyArrayAdapter extends ArrayAdapter<Vocab> {
    private int layout;
    public MyArrayAdapter(Context context, int resource, ArrayList<Vocab> objects) {
        super(context, resource, objects);
        layout = resource;
    }

    private static class ViewHolder {

        TextView dict_entry;
        TextView definition;
        Button add;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        ViewHolder viewHolder = null;
        Vocab word = getItem(position);
        if(convertView == null){
            LayoutInflater inflater = LayoutInflater.from(getContext());
            convertView = inflater.inflate(layout, parent, false);
            viewHolder = new ViewHolder();
            viewHolder.dict_entry = (TextView)convertView.findViewById(R.id.TVdict_entry);
            viewHolder.definition = (TextView)convertView.findViewById(R.id.TVdefinition);
            viewHolder.add = (Button)convertView.findViewById(R.id.Badd);
            convertView.setTag(viewHolder);
        } else {
            viewHolder = (ViewHolder)convertView.getTag();
        }
         viewHolder.dict_entry.setText(word.dict_entry);
         viewHolder.definition.setText(word.definition);    

            viewHolder.add.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Toast.makeText(getContext(), "Button was clicked for list item " + position, Toast.LENGTH_SHORT).show();
                }
            });

        return convertView;
    }
}

Android fill listView with custom ArrayAdapter


Tag : java , By : Ivan Kitanovski
Date : March 29 2020, 07:55 AM
wish helps you You can't use Activity's constructor to provide context (as you said in comments NavDrawer is your MainActivity). So change this onCreateView like this.
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    getActivity().setTitle("Inbox");

    myView = inflater.inflate(R.layout.inbox_layout, container, false);

    ListView list = (ListView) myView.findViewById(R.id.listViewMyAccount);
    inboxCellElement[] elts = new inboxCellElement[] {new inboxCellElement(R.drawable.ic_menu_camera, "Val", "Hi !")};
    list.setAdapter(new inboxCellAdapter(getActivity(), R.layout.inbox_cell_layout, elts, (NavDrawer) getActivity()));

    return myView; 
}
public class inboxCellAdapter extends ArrayAdapter {
  inboxCellElement[] elts;
  NavDrawer navDrawer;
  Activity activity;

  // constructor
  public inboxCellAdapter(Activity activity, int resource, Object[] objects, NavDrawer navDrawer) {
      super(context, resource, objects);
      this.activity = activity;
      elts = (inboxCellElement[]) objects;
      this.navDrawer = navDrawer;
  }
@Override
public View getView(int position, View convertView, ViewGroup parent) {
   MyHolder holder = null;
   LayoutInflater inflater = activity.getLayoutInflater();

Android custom ListView with ArrayAdapter passing boolean


Tag : java , By : Laques
Date : March 29 2020, 07:55 AM
it should still fix some issue I'm new in Android, and I have a problem with sending my boolean flag to my custom ListView class which extends ArrayAdapter... my code: , Apologize for my English.
How did you setAdapter()?
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