리스트뷰 (ListView) 사용 예시 1

1. MainActivity.java

 

package org.androidtown.javaandandroidchap14;
 
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.ListView;
 
public class MainActivity extends AppCompatActivity {
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        ListView listView = (ListView) findViewById(R.id.listView);
 
        MyAdapter adapter = new MyAdapter(this);
        listView.setAdapter(adapter);
    }
}
 

 

2. MyAdapter.java

 

package ...
 
import android.content.Context;
import android.graphics.Color;
import android.util.TypedValue;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
 
 
public class MyAdapter extends BaseAdapter {
 
    public String[] names = {"Kim", "Park", "John", "Carl", "Tim"};
 
    Context mContext;
 
    public MyAdapter(Context context) {
        mContext = context;
    }
 
    @Override
    public int getCount() {
        return names.length;
    }
 
    @Override
    public Object getItem(int position) {
        return names[position];
    }
 
    @Override
    public long getItemId(int position) {
        return position;
    }
 
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        TextView view = new TextView(mContext);
        view.setText(names[position]);
        view.setTextColor(Color.BLUE);
        //view.setTextSize(30.0f);
        view.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 40);
 
        return view;
    }
}

 

3. activity_main.xml

 

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
 
    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true" />
</RelativeLayout>
 

 

4. Result