实现radiogroup的多行多列显示，行列自己定义

主要思想：

1、为了扩展性，使用adapter+gridview+radiobutton实现。可以动态管理多少列。

2、主要是记住选中的状态。行了，废话不多说，直接看代码。

一、首先为了方便，建立一个baseadapter，代码如下：
/**

 * 

 * 

 * @author jale

 * 

 */

public abstract class BaseListAdapter<T> extends BaseAdapter implements OnClickListener {
protected List<T> mList;
protected Context mContext;
protected LayoutInflater mInflater;

public BaseListAdapter(Context context) {
if (context == null) {
// 初始化异常
throw new NullPointerException(BaseListAdapter.class.getName() + "  init Error");
}
mContext = context;
mList = new ArrayList<T>();
mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}

@Override
public int getCount() {
return mList == null ? 0 : mList.size();
}

@Override
public long getItemId(int position) {
return position;
}

@Override
public Object getItem(int position) {
return mList.get(position);
}

public void setData(List<T> list) {
if (list == null) {
return;
}
mList = list;
notifyDataSetChanged();
}

public void addData(List<T> list) {
if (list == null) {
return;
}
mList.addAll(list);
notifyDataSetChanged();
}

@Override
public void onClick(View v) {

}

public void clearData() {
if (mList != null) {
mList.clear();
}
notifyDataSetChanged();
}

}

二、建立adapter，继承至baselistadapter,由于父类用的是泛型，这里的colors是自己的model
public class GridRadioGroupAdapter extends BaseListAdapter<Colors> {

public GridRadioGroupAdapter(Context context) {
super(context);
}

private int checkId;
private boolean startFrom1 = false;

public boolean isStartFrom1() {
return startFrom1;
}

/**
* 设置check 从1开始
* 
* @param startFrom1
*/
public void setStartFrom1(boolean startFrom1) {
this.startFrom1 = startFrom1;
}

public int getCheckId() {
return checkId;
}

public void check(int checkId) {
if (checkId > 1 && startFrom1) {
checkId -= 1;
}
changeStatus(checkId);
}

private void changeStatus(int checkId) {
this.checkId = checkId;
for (int i = 0; i < mList.size(); i++) {
Colors object = mList.get(i);
if (i == checkId) {
object.isChecked = true;
} else {
object.isChecked = false;
}
mList.set(i, object);
}
notifyDataSetChanged();
}

@Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
holder = new ViewHolder();
holder.rb = new RadioButton(mContext);
convertView = holder.rb;
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.rb.setOnCheckedChangeListener(new OnCheckedChangeListener() {

@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
changeStatus(position);
}
}
});
Colors colors = mList.get(position);
holder.rb.setChecked(colors.isChecked);
if (colors != null) {
holder.rb.setText(colors.text);
}
return convertView;
}

final class ViewHolder {
public RadioButton rb;
}

}

3、我定义的model
/**

 * model

 * 

 * @author jake

 * 

 */

public class Colors {
public String text;
public boolean isChecked;

}

4、在activity中使用

public class MainActivity extends Activi
4000
ty {
GridRadioGroupAdapter adapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final GridView gridView = new GridView(this);
setContentView(gridView);
gridView.setNumColumns(4);
adapter = new GridRadioGroupAdapter(this);
gridView.setAdapter(adapter);
List<Colors> list = new ArrayList<Colors>();
for (int i = 0; i < 100; i++) {
Colors colors = new Colors();
colors.text = "第" + (i + 1) + "项";
list.add(colors);
}
adapter.setData(list);
adapter.check(1);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

/***
* 模拟调用数据
* 
* */
@Override
public boolean onMenuItemSelected(int featureId, MenuItem item) {
if (item.getItemId() == R.id.action_settings) {
// adapter.check(10);
Toast.makeText(MainActivity.this, "您选中了: " + ((Colors) adapter.getItem(adapter.getCheckId())).text, 0).show();
}
return super.onMenuItemSelected(featureId, item);
}

}

如果有什么不明白     欢迎跟我交流，其实这个只是个小技巧而已     还望大神别见笑

为了方便，下面是我的demo   欢迎下载
http://pan.baidu.com/s/1kTKI9pl