Android仿QQ个人标签添加与删除功能

<LinearLayout
  android:layout_width="fill_parent"
  android:layout_height="@dimen/label_hei" >

  <GridView
   android:id="@+id/label_check_gv"
   style="@style/w_h_full"
   android:layout_margin="@dimen/margin"
   android:horizontalSpacing="@dimen/margin"
   android:numColumns="4"
   android:scrollbars="none"
   android:stretchMode="columnWidth"
   android:verticalSpacing="@dimen/margin" >
  </GridView>
 </LinearLayout>

 <LinearLayout
  android:layout_width="fill_parent"
  android:layout_height="@dimen/activity_bar"
  android:background="@color/gray_bg" >

  <TextView
   style="@style/w_wrap_h_wrap"
   android:layout_gravity="center_vertical"
   android:layout_marginLeft="@dimen/margin"
   android:text="@string/all_label" />
 </LinearLayout>

 <GridView
  android:id="@+id/label_gv"
  style="@style/w_h_full"
  android:layout_margin="@dimen/margin"
  android:horizontalSpacing="@dimen/margin"
  android:numColumns="4"
  android:scrollbars="none"
  android:stretchMode="columnWidth"
  android:verticalSpacing="@dimen/margin" >
</GridView>

public class FragLabelGridViewAdapter extends BaseAdapter {

 class ViewHolder {
  @ViewInject(R.id.gv_label_txt)
  public TextView label;
 }

 private Context context;
 private LayoutInflater inflater;
 private List<String> labels;

 public FragLabelGridViewAdapter(List<String> labels, Context context) {
  this.context = context;
  inflater = LayoutInflater.from(context);
  this.labels = labels;

 }

 @Override
 public int getCount() {
  return labels.size();
 }

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

 @Override
 public long getItemId(int id) {
  // TODO Auto-generated method stub
  return id;
 }

 @Override
 public View getView(int position, View convertView, ViewGroup parent) {
  ViewHolder viewHolder;
  if (convertView == null) {
   convertView = inflater.inflate(R.layout.gv_item_label, null);
   viewHolder = new ViewHolder();
   ViewUtils.inject(viewHolder, convertView);
   convertView.setTag(viewHolder);
  } else {
   viewHolder = (ViewHolder) convertView.getTag();
  }
  viewHolder.label.setText(labels.get(position));
  return convertView;
 }

}

public class FragmentLabel extends Fragment {

 @ViewInject(R.id.label_gv)
 GridView labelGridview;
 @ViewInject(R.id.label_check_gv)
 GridView labelCheckGridview;
 private Context context;
 private FragLabelGridViewAdapter adapter;
 private FragLabelCheckGridViewAdapter checkAdapter;
 // 所有标签
 private List<String> labels = new ArrayList<String>();
 // 已选标签
 private List<String> checkLabels = new ArrayList<String>();

 public View onCreateView(LayoutInflater inflater, ViewGroup container,
   Bundle savedInstanceState) {

  View view = inflater.inflate(R.layout.fragment_label, container, false);
  ViewUtils.inject(this, view);
  context = getActivity().getApplicationContext();
  return view;

 }

 @Override
 public void onActivityCreated(Bundle savedInstanceState) {
  // TODO Auto-generated method stub
  super.onActivityCreated(savedInstanceState);
  initviews();
 }

private void initviews() {
  labels.add("高血压");
  labels.add("糖尿病");
  labels.add("肺炎");
  labels.add("肝炎");
  labels.add("高血脂");
  labels.add("心脏病");
  labels.add("中暑");
  labels.add("肺炎");
  labels.add("感冒");
  labels.add("高血脂");
  labels.add("胃病");
  labels.add("糖尿病");
  labels.add("肺炎");
  labels.add("肝炎");
  labels.add("高血脂");
  labels.add("高血压");
  labels.add("糖尿病");
  labels.add("肺炎");
  labels.add("肝炎");
  labels.add("高血脂");
  labels.add("高血压");
  labels.add("糖尿病");
  labels.add("肺炎");

  adapter = new FragLabelGridViewAdapter(labels, context);
  labelGridview.setAdapter(adapter);
  labelGridview.setOnItemClickListener(new OnItemClickListener() {

   @Override
   public void onItemClick(AdapterView<?> arg0, View arg1,
     int position, long arg3) {
    for (int i = 0; i < checkLabels.size(); i++) {
     if (labels.get(position) == checkLabels.get(i)) {
      UiUtil.showToast(context,
        getResources().getString(R.string.label_toast));
      return;
     }

    }
    checkLabels.add(labels.get(position));

    refresh();
   }

  });
  checkAdapter = new FragLabelCheckGridViewAdapter(checkLabels, context);
  labelCheckGridview.setAdapter(checkAdapter);
  labelCheckGridview.setOnItemClickListener(new OnItemClickListener() {

   @Override
   public void onItemClick(AdapterView<?> arg0, View arg1,
     int position, long arg3) {
    checkLabels.remove(position);
    refresh();
   }
  });

 }

 private void refresh() {
  checkAdapter.setLabels(checkLabels);
  checkAdapter.notifyDataSetChanged();
 }
}