Create custom ListView of custom object |
package com.example.androidcustomlistview; import java.util.ArrayList; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ListView; import android.widget.TextView; import android.app.Activity; import android.content.Context; public class MainActivity extends Activity { private class MyObject{ private int number; private String name; MyObject(int num, String nam){ number = num; name = nam; } public int getNumber(){ return number; } public String getName(){ return name; } } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ListView listView = (ListView)findViewById(R.id.listview); //Init ArrayList of MyObject ArrayList<MyObject> myArrayList = new ArrayList<MyObject>(); myArrayList.add(new MyObject(0, "Sunday")); myArrayList.add(new MyObject(1, "Monday")); myArrayList.add(new MyObject(2, "Tuesday")); myArrayList.add(new MyObject(3, "Wednesday")); myArrayList.add(new MyObject(4, "Thursday")); myArrayList.add(new MyObject(5, "Friday")); myArrayList.add(new MyObject(6, "Saturday")); MyAdapter myAdapter = new MyAdapter(this, myArrayList); listView.setAdapter(myAdapter); } private class MyAdapter extends BaseAdapter { private ArrayList<MyObject> myList; private Activity parentActivity; private LayoutInflater inflater; public MyAdapter(Activity parent, ArrayList<MyObject> l) { parentActivity = parent; myList=l; inflater = (LayoutInflater)parentActivity .getSystemService(Context.LAYOUT_INFLATER_SERVICE); } @Override public int getCount() { return myList.size(); } @Override public Object getItem(int position) { return myList.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView (int position, View convertView, ViewGroup parent) { View view = convertView; if(convertView==null) view = inflater.inflate(R.layout.row, null); TextView text1 = (TextView)view.findViewById(R.id.text1); TextView text2 = (TextView)view.findViewById(R.id.text2); MyObject myObj = myList.get(position); text1.setText(String.valueOf(myObj.getNumber())); text2.setText(myObj.getName()); return view; } } }
row.xml, define the layout of individual row in the list.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:orientation="vertical" tools:context=".MainActivity" > <TextView android:id="@+id/text1" android:layout_width="wrap_content" android:layout_height="wrap_content"/> <TextView android:id="@+id/text2" android:layout_width="match_parent" android:layout_height="wrap_content" android:textStyle="bold"/> </LinearLayout>
Main layout
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:orientation="vertical" tools:context=".MainActivity" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="android-coding.blogspot.com" /> <ListView android:id="@+id/listview" android:layout_width="match_parent" android:layout_height="wrap_content" /> </LinearLayout>
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