使用ContentProvider管理联系人 - JAVA

Click(View v) {
Intent intent = new Intent(ReadContactActivity.this,
SaveContactActivity.class);
startActivity(intent);
}
});

adapter = new BaseExpandableListAdapter() {

@Override
public boolean isChildSelectable(int groupPosition,
int childPosition) {
return true;
}

@Override
public boolean hasStableIds() {
return true;
}

@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
TextView tv = new TextView(ReadContactActivity.this);
tv.setText(namesList.get(groupPosition));
tv.setPadding(50, 10, 10, 10);
return tv;
}

@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}

@Override
public int getGroupCount() {
return namesList.size();
}

@Override
public Object getGroup(int groupPosition) {
return namesList.get(groupPosition);
}

@Override
public int getChildrenCount(int groupPosition) {
return infoList.get(groupPosition).size();
}

@Override
public View getChildView(int groupPosition, int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
TextView tv = new TextView(ReadContactActivity.this);
tv.setText(infoList.get(groupPosition).get(childPosition));
tv.setPadding(10, 10, 10, 10);
return tv;
}

@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}

@Override
public Object getChild(int groupPosition, int childPosition) {
return infoList.get(groupPosition).get(childPosition);
}
};
elv.setAdapter(adapter);
}

// 添加联系人完成后回调此方法，更新adapter数据
@Override
protected void onResume() {
super.onResume();
initData();
adapter.notifyDataSetChanged();
}
}
读取联系人的布局XML：

[html] v
< xml version="1.0" encoding="utf-8" >
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

使用ContentProvider管理联系人 (五)