Android - Multi Item ListView 教學－一緒に世界の温度を体験する

1. Lyaout_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="wrap_content" >

</RelativeLayout>

2.Model.java

package com.example.multiitemlistview;

public class Model {

private String name;
private boolean selected;

public Model(String name) {
this.name = name;
selected = false;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public boolean isSelected() {
return selected;
}

3.MyListArrayAdapter.java

package com.example.multiitemlistview;

import java.util.List;

import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.TextView;

public class MyListArrayAdapter extends ArrayAdapter<Model> {

private final List<Model> list;
private final Activity context;

public MyListArrayAdapter(Activity context, List<Model> list) {
super(context, R.layout.layout_main, list);
this.context = context;
this.list = list;
}

static class ViewHolder {
protected TextView text;
protected CheckBox checkbox;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = null;

if (convertView == null) {
LayoutInflater inflator = context.getLayoutInflater();
view = inflator.inflate(R.layout.layout_main, null);

final ViewHolder viewHolder = new ViewHolder();
viewHolder.text = (TextView) view.findViewById(R.id.label);
viewHolder.checkbox = (CheckBox) view.findViewById(R.id.check);

viewHolder.checkbox
.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
Model element = (Model) viewHolder.checkbox
.getTag();
element.setSelected(buttonView.isChecked());
}
});

view.setTag(viewHolder);
viewHolder.checkbox.setTag(list.get(position));

} else {

view = convertView;
((ViewHolder) view.getTag()).checkbox.setTag(list.get(position));
}
ViewHolder holder = (ViewHolder) view.getTag();
holder.text.setText(list.get(position).getName());
holder.checkbox.setChecked(list.get(position).isSelected());
return view;
}
}

4.MultiItemListView.java

package com.example.multiitemlistview;

import java.util.ArrayList;
import java.util.List;

import android.os.Bundle;
import android.app.Activity;
import android.app.ListActivity;
import android.view.Menu;
import android.widget.ArrayAdapter;

public class MultiItemListView extends ListActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ArrayAdapter<Model> adapter = new MyListArrayAdapter(this,getModel());
setListAdapter(adapter);
}

private List<Model> getModel() {
List<Model> list = new ArrayList<Model>();
list.add(get("Linux"));
list.add(get("Windows7"));
list.add(get("Asus"));
list.add(get("Eclipse"));
list.add(get("Ubuntu"));
list.add(get("Solaris"));
list.add(get("Android"));
list.add(get("iPhone"));
// Initially select one of the items
list.get(6).setSelected(true);
return list;
}

private Model get(String s) {
return new Model(s);
}
}