listview点击显示下拉菜单

package com.lee.listViewitem; import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.os.Bundle; import android.os.Handler; import android.os.Vibrator; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.View.OnClickListener; import android.widget.AdapterView; import android.widget.BaseAdapter; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.TextView; import android.widget.AdapterView.OnItemClickListener; import android.widget.AdapterView.OnItemLongClickListener; public class TestListViewItemActivity extends Activity implements OnItemClickListener, OnItemLongClickListener { private ListView noteBookslist; private NoteBookAdapter noteBookAdapter; private List<String> fileTypeList; private int currentPosition = -1; private int mSingleChoiceID = -1; private String[] mItems; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.note_list); initView(); setData(); } private void initView() { noteBookslist = (ListView) findViewById(R.id.notebook_list); noteBookslist.setOnItemClickListener(this); noteBookslist.setOnItemLongClickListener(this); } private void setData() { fileTypeList = new ArrayList<String>(); for (int i = 0; i < 10; i++) { fileTypeList.add("Test" + i); } if (noteBookAdapter == null) { noteBookAdapter = new NoteBookAdapter(this, fileTypeList); noteBookslist.setAdapter(noteBookAdapter); } else { noteBookAdapter.notifyDataSetChanged(); } } @Override protected void onResume() { updateNoteBookList(); super.onResume(); } private void updateNoteBookList() { if (noteBookAdapter != null) { setData(); noteBookAdapter.notifyDataSetChanged(); } } @Override public void onItemClick(AdapterView<?> listview, View arg1, int position, long arg3) { currentPosition = -1; noteBookAdapter.notifyDataSetChanged(); } @Override public boolean onItemLongClick(AdapterView<?> listview, View arg1, int position, long arg3) { Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE); vibrator.vibrate(40); currentPosition = position; noteBookAdapter.notifyDataSetChanged(); return true; } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK) { this.finish(); } return super.onKeyDown(keyCode, event); } private Handler handler = new Handler() { public void handleMessage(android.os.Message msg) { if (msg.what == 1) { noteBookAdapter.notifyDataSetChanged(); } } }; class NoteBookAdapter extends BaseAdapter { private Context context; private LayoutInflater inflater; private List<String> fileTypeList; public NoteBookAdapter(Activity activity, List<String> fileTypeList) { this.context = activity; this.fileTypeList = fileTypeList; inflater = LayoutInflater.from(context); } public int getCount() { return fileTypeList.size(); } public int getItemViewType(int position) { return position; } public Object getItem(int arg0) { return fileTypeList.get(arg0); } public long getItemId(int position) { return position; } public View getView(final int position, View convertView, ViewGroup parent) { ViewHolder holder = null; if (convertView == null) { convertView = inflater.inflate(R.layout.item_comm_note, parent, false); holder = new ViewHolder(); holder.fileNameText = (TextView) convertView.findViewById(R.id.item_name); holder.fileTimeText = (TextView) convertView.findViewById(R.id.item_time); holder.fileSizeText = (TextView) convertView.findViewById(R.id.item_pm); holder.linearLayout = (LinearLayout) convertView.findViewById(R.id.layout_other); holder.openLinearLayout = (LinearLayout) convertView.findViewById(R.id.item_open); holder.editLinearLayout = (LinearLayout) convertView.findViewById(R.id.item_edit); holder.moveLinearLayout = (LinearLayout) convertView.findViewById(R.id.item_move); holder.deleteLinearLayout = (LinearLayout) convertView.findViewById(R.id.item_delete); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } String strs = fileTypeList.get(position); holder.fileNameText.setText(strs); holder.fileTimeText.setText(""); holder.fileSizeText.setText(""); if (position == currentPosition) { holder.linearLayout.setVisibility(View.VISIBLE); holder.openLinearLayout.setClickable(true); holder.editLinearLayout.setClickable(true); holder.moveLinearLayout.setClickable(true); holder.deleteLinearLayout.setClickable(true); holder.openLinearLayout.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { currentPosition = -1; } }); holder.editLinearLayout.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub currentPosition = -1; } }); holder.moveLinearLayout.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { AlertDialog.Builder builder = new AlertDialog.Builder(TestListViewItemActivity.this); mSingleChoiceID = -1; builder.setIcon(android.R.drawable.ic_dialog_info); builder.setTitle("移动至"); builder.setSingleChoiceItems(mItems, 0, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { mSingleChoiceID = whichButton; } }); builder.setPositiveButton("确\t定", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { if (mSingleChoiceID > 0) { currentPosition = -1; handler.sendEmptyMessage(1); } } }); builder.setNegativeButton("取\t消", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { } }); builder.create().show(); } }); holder.deleteLinearLayout.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub currentPosition = -1; fileTypeList.remove(position); handler.sendEmptyMessage(1); } }); } else { holder.linearLayout.setVisibility(View.GONE); holder.openLinearLayout.setClickable(false); holder.editLinearLayout.setClickable(false); holder.moveLinearLayout.setClickable(false); holder.deleteLinearLayout.setClickable(false); } return convertView; } class ViewHolder { public TextView fileNameText; public TextView fileTimeText; public TextView fileSizeText; public LinearLayout linearLayout; public LinearLayout openLinearLayout; public LinearLayout editLinearLayout; public LinearLayout moveLinearLayout; public LinearLayout deleteLinearLayout; } } }