android自定义绘制TableLayout,类似.net中DataGrid控件

研究这个之前也网络找了好些资料，感觉各说风云吧，最终我选择了ListView+自定义Adapter+TableLayout方式来实现固定标题表头的方式（还有通过后台代码手动绘制TableLayout）。

表头定义布局文件（coordinate_list_header.xml）如下：

<?xml version="1.0" encoding="utf-8"?>

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:background="@color/golden" >

<TableRow

android:id="@+id/coordinate_list_header_row"

android:layout_width="match_parent"

android:layout_height="wrap_content" >

<TextView

android:id="@+id/coordinate_header_sn"

android:layout_width="60dip"

android:layout_height="wrap_content"

android:layout_gravity="center"

android:padding="2dip"

android:text="@string/coordinate_sn" />

<TextView

android:id="@+id/coordinate_header_inflection"

android:layout_width="60dip"

android:layout_height="wrap_content"

android:layout_gravity="center"

android:padding="2dip"

android:text="@string/coordinate_inflection" />

<TextView

android:id="@+id/coordinate_header_x"

android:layout_width="0dp"

android:layout_height="wrap_content"

android:layout_marginLeft="5dp"

android:layout_weight="1"

android:padding="2dip"

android:text="@string/coordinate_x" />

<TextView

android:id="@+id/coordinate_header_y"

android:layout_width="0dp"

android:layout_height="wrap_content"

android:layout_marginLeft="5dp"

android:layout_weight="1"

android:padding="2dip"

android:text="@string/coordinate_y" />

</TableRow>

</TableLayout>

自定义表格数据布局文件（ coordinate_list_item.xml）如下：

<?xml version="1.0" encoding="utf-8"?>

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:background="@color/white" >

<TableRow

android:id="@+id/coordinate_list_row"

android:layout_width="wrap_content"

android:layout_height="wrap_content" >

<TextView

android:id="@+id/coordinate_row_sn"

android:layout_width="60dip"

android:layout_height="wrap_content"

android:layout_gravity="center"

android:padding="2dip"

android:text="" />

<TextView

android:id="@+id/coordinate_row_inflection"

android:layout_width="60dip"

android:layout_height="wrap_content"

android:layout_gravity="center"

android:padding="2dip"

android:text="" />

<TextView

android:id="@+id/coordinate_row_x"

android:layout_width="wrap_content" --自定适应宽度（这里最好别用"0dp"+ android:layout_weight的方式，很坑的！！绑定的数据只显示第一位字符，可能是Android的Bug）

android:layout_height="wrap_content"

android:layout_marginLeft="5dp"

android:layout_weight="1"

android:padding="2dip"

android:text="" />

<TextView

android:id="@+id/coordinate_row_y"

android:layout_width="wrap_content" -- 自定适应宽度

android:layout_height="wrap_content"

android:layout_marginLeft="5dp"

android:layout_weight="1"

android:padding="2dip"

android:text="" />

</TableRow>

</TableLayout>

自定义Adapter:

public class CoordinateListViewAdapter extends BaseAdapter {

Context _cxt;

LayoutInflater inflater;

List<CoordinateEntry> _items;

public CoordinateListViewAdapter(Context context, List<Point> items) {

_cxt = context;

inflater = LayoutInflater.from(context);

_items = new ArrayList<CoordinateEntry>();

for (int i = 0; i < items.size(); i++) {

CoordinateEntry entry = new CoordinateEntry();

entry.id = i + 1;

entry.inflectPoint = i + 1;

entry.x = String.format("%.4f", items.get(i).getX());

entry.y = String.format("%.4f", items.get(i).getY());

_items.add(entry);

}

public void setItems(List<Point> items) {

_items.clear();

for (int i = 0; i < items.size(); i++) {

CoordinateEntry entry = new CoordinateEntry();

entry.id = i + 1;

entry.inflectPoint = i + 1;

entry.x = String.format("%.4f", items.get(i).getX());

entry.y = String.format("%.4f", items.get(i).getY());

_items.add(entry);

}

notifyDataSetChanged();

}

@Override

public int getCount() {

return _items.size();

}

@Override

public Object getItem(int position) {

return _items.get(position);

}

@Override

public long getItemId(int position) {

return position;

}

@Override

public View getView(int position, View convertView, ViewGroup parent) {

CoordinateViewHolder viewHolder;

if (convertView == null) {

viewHolder = new CoordinateViewHolder();

convertView = inflater.inflate(R.layout.coordinate_list_item, null);// 绑定自定义的layout

viewHolder.sn = (TextView) convertView

.findViewById(R.id.coordinate_row_sn);

viewHolder.inflation = (TextView) convertView

.findViewById(R.id.coordinate_row_inflection);

viewHolder.x = (TextView) convertView

.findViewById(R.id.coordinate_row_x);

viewHolder.y = (TextView) convertView

.findViewById(R.id.coordinate_row_y);

convertView.setTag(viewHolder);

} else {

viewHolder = (CoordinateViewHolder) convertView.getTag();

}

CoordinateEntry coord = _items.get(position);

viewHolder.sn.setText(Integer.toString(coord.id));

viewHolder.inflation.setText(Integer.toString(coord.inflectPoint));

viewHolder.x.setText(coord.x);

viewHolder.y.setText(coord.y);

return convertView;

}

public final class CoordinateViewHolder {

public TextView sn;

public TextView inflation;

public TextView x;

public TextView y;

}

最后就是显示表格数据的页面布及后台业务实现啦，这个展示一下主要代码：

<LinearLayout

android:layout_width="match_parent"

android:layout_height="0dp"

android:layout_marginTop="5dp"

android:layout_weight="1"

android:orientation="vertical" >

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginRight="5dp"

android:text="@string/tools_realtime_query_landinfo_tip" />

<include

android:layout_width="match_parent"

android:layout_height="wrap_content"

layout="@layout/coordinate_list_header" />

<ListView

android:id="@+id/lvQueryCoordinate"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:cacheColorHint="#00000000"

android:divider="@color/color_dark_grey"

android:dividerHeight="1dip"

android:fastScrollEnabled="true"

android:focusable="true"

android:scrollingCache="true" >

</ListView>

</LinearLayout>

后台调用代码：

coordAdapter = new CoordinateListViewAdapter(this, coordEntries);

((ListView) findViewById(R.id.lvQueryCoordinate))

.setAdapter(coordAdapter);

欢迎各位指教！