BaseAdapter + Item点击监听

来源：互联网发布：功能点估算法例子编辑：程序博客网时间：2024/05/16 05:39

src 中的 MainActivity：

public class MainActivity extends Activity {private ListView lvContact;private List<Contact> contacts;private BaseAdapter adapter;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);lvContact = (ListView) findViewById(R.id.lv_contacts);contacts = getContacts();adapter = new ContactAdapter(this, contacts);lvContact.setAdapter(adapter);OnItemClickListener listener = new InnerOnItemClickListener();lvContact.setOnItemClickListener(listener);}private class InnerOnItemClickListener implements OnItemClickListener {@Overridepublic void onItemClick(AdapterView<?> parent, View view, int position, long id) {Toast.makeText(MainActivity.this,  contacts.get(position).getName(), Toast.LENGTH_LONG).show();}}private List<Contact> getContacts() {List<Contact> contacts = new ArrayList<Contact>();contacts.add(new Contact("Alex", "13800138001", "alex@tedu.cn"));contacts.add(new Contact("Mike", "13800138002", "mike@tedu.cn"));contacts.add(new Contact("Lily", "13800138003", "lily@tedu.cn"));contacts.add(new Contact("Rose", "13800138004", "rose@tedu.cn"));contacts.add(new Contact("Jack", "13800138005", "jack@tedu.cn"));contacts.add(new Contact("Alex1", "13800138006", "alex1@tedu.cn"));contacts.add(new Contact("Mike1", "13800138007", "mike1@tedu.cn"));contacts.add(new Contact("Lily1", "13800138008", "lily1@tedu.cn"));contacts.add(new Contact("Rose1", "13800138009", "rose1@tedu.cn"));contacts.add(new Contact("Jack1", "13800138010", "jack1@tedu.cn"));return contacts;}}

src 中的 ContactAdapter：

public class ContactAdapter extends BaseAdapter {private Context context;private List<Contact> data;private LayoutInflater inflater;public ContactAdapter(Context context, List<Contact> data) {this.context = context;setData(data);inflater = LayoutInflater.from(this.context);}public void setData(List<Contact> data) {if (data == null) {data = new ArrayList<Contact>();}this.data = data;}@Overridepublic int getCount() {return this.data.size();}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {Contact contact = data.get(position);ViewHolder holder;if (convertView == null) {convertView = inflater.inflate(R.layout.contact_item, null);holder = new ViewHolder();holder.tvName = (TextView) convertView.findViewById(R.id.tv_name);holder.tvNumber = (TextView) convertView.findViewById(R.id.tv_number);holder.tvEmail = (TextView) convertView.findViewById(R.id.tv_email);convertView.setTag(holder);} else {holder = (ViewHolder) convertView.getTag();}holder.tvName.setText(contact.getName());holder.tvNumber.setText(contact.getNumber());holder.tvEmail.setText(contact.getEmail());return convertView;}private class ViewHolder {TextView tvName;TextView tvNumber;TextView tvEmail;}@Overridepublic Object getItem(int position) {return null;}@Overridepublic long getItemId(int position) {return 0;}}

src 中的 Contact：

public class Contact {private String name;private String number;private String email;public Contact() {super();}public Contact(String name, String number, String email) {super();this.name = name;this.number = number;this.email = email;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getNumber() {return number;}public void setNumber(String number) {this.number = number;}public String getEmail() {return email;}

layout 中的 activity_main.xml：

<RelativeLayout 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"    tools:context=".MainActivity" >     <ListView        android:id="@+id/lv_contacts"        android:layout_width="match_parent"        android:layout_height="match_parent" />     </RelativeLayout>

layout 中的 contact_item.xml：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:padding="10dp"    android:orientation="vertical" >    <LinearLayout         android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="horizontal"        >    <TextView        android:id="@+id/tv_name"        android:layout_width="80dp"        android:layout_height="20dp"        android:gravity="left|center"        android:textSize="16sp"        android:textStyle="bold"        android:textColor="#000000"        android:text="TextView" />    <TextView        android:id="@+id/tv_number"        android:layout_width="match_parent"        android:layout_height="20dp"        android:gravity="left|center"        android:textSize="14sp"        android:textColor="#555555"        android:text="TextView" /></LinearLayout>    <TextView        android:id="@+id/tv_email"        android:layout_width="match_parent"        android:layout_height="20dp"        android:gravity="left|center"        android:textSize="14sp"        android:textColor="#555555"        android:text="TextView" /></LinearLayout>

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