Android基于BaseExpandableListAdapter实现的二级列表仿通话记录功能详解

本文实例讲述了Android基于BaseExpandableListAdapter实现的二级列表仿通话记录功能。分享给大家供大家参考，具体如下：

android SDK中带有这样类似的例子，但是那个还是静态数据，没有实际应用价值，参考意义不大。

网上找了很多，还是那样的情况，几乎是同一篇文章，大家转来转去。况且，那篇例子也是静态的数据。

还是自己试试，自己写一个吧。程序读取手机系统的通话记录，按联系人分组，显示到列表。

开发工具：eclipse
运行环境：htc G9 android2.3.3

不多说，先看效果：

展开后的效果：

继续展开的效果：

main.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 >
 <ExpandableListView
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:id="@+id/list"
 android:groupIndicator="@drawable/tubiao_button"
 android:layout_gravity="right"
 android:indicatorRight="0px" />
</LinearLayout>

lis_item.xml：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
 xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:paddingLeft="2.0dip"
 >
<ImageView
 android:id="@+id/contact"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:src="@drawable/contact"
 android:layout_alignParentLeft="true"
 android:layout_centerVertical="true"
 android:layout_marginRight="10.0dip"
 />
<ImageView
 android:id="@+id/open"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:src="@drawable/min"
 android:layout_toRightOf="@id/contact"
 android:layout_centerVertical="true"
 android:layout_marginLeft="5.0dip"
 android:layout_marginRight="5.0dip"
 />
<TextView
   android:id="@+id/name"
   android:textAppearance="?android:textAppearanceLarge"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:layout_marginLeft="10.0dip"
   android:layout_marginTop="5.0dip"
   android:layout_marginRight="10.0dip"
   android:singleLine="true"
   android:layout_toRightOf="@id/open"
   android:layout_alignTop="@id/open"
  />
<ImageView
 android:id="@+id/type"
 android:layout_width="wrap_content"
     android:layout_height="wrap_content"
   android:layout_marginTop="10.0dip"
   android:layout_marginRight="8.0dip"
   android:layout_marginLeft="5.0dip"
   android:src="@drawable/call_in"
   android:layout_alignParentRight="true"
  />
<TextView
 android:id="@+id/count"
 android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:layout_marginTop="10.0dip"
   android:layout_marginRight="8.0dip"
   android:layout_marginLeft="10.0dip"
   android:layout_alignParentRight="true"
  />
<TextView
  android:id="@+id/number"
  android:textAppearance="?android:textAppearanceSmall"
  android:ellipsize="marquee"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:singleLine="true"
  android:layout_below="@id/name"
  android:layout_alignLeft="@id/name"
  android:layout_alignWithParentIfMissing="true"
  />
<TextView
 android:id="@+id/date"
 android:textAppearance="?android:textAppearanceSmall"
   android:ellipsize="marquee"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:singleLine="true"
   android:layout_alignParentBottom="true"
   android:layout_alignParentRight="true"
  />
</RelativeLayout>

这里的也是采用继承BaseExpandableListAdapter来实现，具体请看代码。

主角Activity：

public class CollLogActivity extends Activity {
  private ExpandableListView listView;
  private MyAsyncQueryHandler queryHandler;
  private MyExpandableListAdapter listAdapter;
  private ArrayList<ContentValues> group;
  private ArrayList<List<ContentValues>> child;
  private static final Uri uri = Uri.parse("content://call_log/calls");
  private static final String[] projection = { "_id", "number", "date",
      "type", "new", "name" };
  private static final int INCOMING_TYPE = 1;
  private static final int OUTGOING_TYPE = 2;
  private static final int MISSED_TYPE = 3;
  private String currentNumber = "-1";
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    listView = (ExpandableListView) findViewById(R.id.list);
    queryHandler = new MyAsyncQueryHandler(getContentResolver());
    group = new ArrayList<ContentValues>();
    child = new ArrayList<List<ContentValues>>();
  }
  @Override
  protected void onResume() {
    super.onResume();
    startQuery();
  }
  private class MyExpandableListAdapter extends BaseExpandableListAdapter {
    private LayoutInflater inflater;
    public MyExpandableListAdapter(Context context) {
      this.inflater = LayoutInflater.from(context);
    }
    @Override
    public Object getChild(int groupPosition, int childPosition) {
      return child.get(groupPosition).get(childPosition);
    }
    @Override
    public long getChildId(int groupPosition, int childPosition) {
      return childPosition;
    }
    @Override
    public View getChildView(int groupPosition, int childPosition,
        boolean isLastChild, View convertView, ViewGroup parent) {
      ViewHolder holder;
      if (convertView == null) {
        convertView = inflater.inflate(R.layout.list_item, null);
        holder = new ViewHolder();
        holder.name = (TextView) convertView.findViewById(R.id.name);
        holder.number = (TextView) convertView
            .findViewById(R.id.number);
        holder.date = (TextView) convertView.findViewById(R.id.date);
        holder.count = (TextView) convertView.findViewById(R.id.count);
        holder.type = (ImageView) convertView.findViewById(R.id.type);
        holder.open = (ImageView) convertView.findViewById(R.id.open);
        convertView.setTag(holder);
      } else {
        holder = (ViewHolder) convertView.getTag();
      }
      convertView.setBackgroundColor(Color.rgb(54, 54, 54));
      ContentValues cv = child.get(groupPosition).get(childPosition);
      String name = cv.getAsString("name");
      String number = cv.getAsString("number");
      String date = cv.getAsString("date");
      int type = cv.getAsInteger("type");
      holder.name.setText(name);
      holder.number.setText(number);
      holder.date.setText(date);
      holder.count.setVisibility(View.GONE);
      setTypeImg(holder.type, type);
      holder.open.setVisibility(View.GONE);
      return convertView;
    }
    @Override
    public int getChildrenCount(int groupPosition) {
      return child.get(groupPosition).size();
    }
    @Override
    public Object getGroup(int groupPosition) {
      return group.get(groupPosition);
    }
    @Override
    public int getGroupCount() {
      return group.size();
    }
    @Override
    public long getGroupId(int groupPosition) {
      return groupPosition;
    }
    @Override
    public View getGroupView(int groupPosition, boolean isExpanded,
        View convertView, ViewGroup parent) {
      ViewHolder holder;
      if (convertView == null) {
        convertView = inflater.inflate(R.layout.list_item, null);
        holder = new ViewHolder();
        holder.name = (TextView) convertView.findViewById(R.id.name);
        holder.number = (TextView) convertView
            .findViewById(R.id.number);
        holder.date = (TextView) convertView.findViewById(R.id.date);
        holder.count = (TextView) convertView.findViewById(R.id.count);
        holder.type = (ImageView) convertView.findViewById(R.id.type);
        holder.open = (ImageView) convertView.findViewById(R.id.open);
        convertView.setTag(holder);
      } else {
        holder = (ViewHolder) convertView.getTag();
      }
      ContentValues cv = (ContentValues) getGroup(groupPosition);
      String name = cv.getAsString("name");
      String number = cv.getAsString("number");
      String date = cv.getAsString("date");
      holder.name.setText(name);
      holder.number.setText(number);
      holder.date.setText(date);
      holder.type.setVisibility(View.GONE);
      holder.count.setText("(" + getChildrenCount(groupPosition) + ")");
      if (isExpanded) {
        holder.open.setImageResource(R.drawable.min);
      } else {
        holder.open.setImageResource(R.drawable.max);
      }
      return convertView;
    }
    @Override
    public boolean hasStableIds() {
      return false;
    }
    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
      return true;
    }
  }
  private class ViewHolder {
    TextView name;
    TextView number;
    TextView date;
    TextView count;
    ImageView type;
    ImageView open;
  }
  private void setTypeImg(ImageView imageView, int type) {
    switch (type) {
    case INCOMING_TYPE:
      imageView.setImageResource(R.drawable.call_in);
      break;
    case OUTGOING_TYPE:
      imageView.setImageResource(R.drawable.call_out);
      break;
    case MISSED_TYPE:
      imageView.setImageResource(R.drawable.call_miss);
      break;
    }
  }
  private class MyAsyncQueryHandler extends AsyncQueryHandler {
    public MyAsyncQueryHandler(ContentResolver cr) {
      super(cr);
    }
    @Override
    protected void onQueryComplete(int token, Object cookie, Cursor cursor) {
      if (cursor != null && cursor.getCount() > 0) {
        cursor.moveToFirst();
        for (int i = 0; i < cursor.getCount(); i++) {
          cursor.moveToPosition(i);
          String name = cursor.getString(cursor
              .getColumnIndex("name"));
          String number = cursor.getString(cursor
              .getColumnIndex("number"));
          int type = cursor.getInt(cursor.getColumnIndex("type"));
          long date = cursor.getLong(cursor.getColumnIndex("date"));
          ContentValues cv = new ContentValues();
          cv.put("name", name);
          cv.put("number", number);
          cv.put("type", type);
          cv.put("date",
              formatTimeStampString(CollLogActivity.this, date));
          addGroupItem(cv);
        }
      }
      if (group.size() > 0) {
        setAdapter();
      }
    }
  }
  private void addGroupItem(ContentValues cv) {
    String number = cv.getAsString("number");
    if (!currentNumber.equals(number)) {
      group.add(cv);
      addChildItem(number);
      currentNumber = number;
    }
  }
  private void addChildItem(String number) {
    ArrayList<ContentValues> list = new ArrayList<ContentValues>();
    Cursor cursor = getContentResolver().query(uri, projection,
        "number=" + number, null, null);
    if (cursor != null && cursor.getCount() > 0) {
      cursor.moveToFirst();
      for (int i = 0; i < cursor.getCount(); i++) {
        cursor.moveToPosition(i);
        String name = cursor.getString(cursor.getColumnIndex("name"));
        int type = cursor.getInt(cursor.getColumnIndex("type"));
        long date = cursor.getLong(cursor.getColumnIndex("date"));
        ContentValues cv = new ContentValues();
        cv.put("name", name);
        cv.put("number", number);
        cv.put("type", type);
        cv.put("date",
            formatTimeStampString(CollLogActivity.this, date));
        list.add(cv);
      }
    }
    child.add(list);
  }
  private void setAdapter() {
    listAdapter = new MyExpandableListAdapter(CollLogActivity.this);
    listView.setAdapter(listAdapter);
  }
  private void startQuery() {
    queryHandler.startQuery(1, null, uri, projection, null, null,
        "date desc");
  }
  // 处理日期方法
  private static String formatTimeStampString(Context context, long when) {
    Time then = new Time();
    then.set(when);
    Time now = new Time();
    now.setToNow();
    int format_flags = DateUtils.FORMAT_NO_NOON_MIDNIGHT
        | DateUtils.FORMAT_ABBREV_ALL | DateUtils.FORMAT_CAP_AMPM;
    if (then.year != now.year) {
      format_flags |= DateUtils.FORMAT_SHOW_YEAR
          | DateUtils.FORMAT_SHOW_DATE;
    } else if (then.yearDay != now.yearDay) {
      format_flags |= DateUtils.FORMAT_SHOW_DATE;
    } else {
      format_flags |= DateUtils.FORMAT_SHOW_TIME;
    }
    return DateUtils.formatDateTime(context, when, format_flags);
  }
}

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