etLanguages = (EditText) findViewById(R.id.et_languages);etLanguages.setKeyListener(null); // 設(shè)置EditText不可編輯，等同于在xml中設(shè)置editable="false"lpwLanguages = new ListPopupWindow(this);mAdapterLanguages = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mLanguages);lpwLanguages.setAdapter(mAdapterLanguages);lpwLanguages.setAnchorView(etLanguages); //設(shè)置ListPopupWindow的錨點，即關(guān)聯(lián)PopupWindow的顯示位置lpwLanguages.setModal(true); // 是否為模態(tài)，當設(shè)置為true時，會處理返回按鍵的事件lpwLanguages.setOnItemClickListener(new AdapterView.OnItemClickListener() {    @Override    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {        showMessage("Select " + mLanguages[position]);        etLanguages.setText(mLanguages[position]);        lpwLanguages.dismiss();    }});// 如果使用onClick事件，會出現(xiàn)第一次點擊只獲取焦點，第二次點擊才出現(xiàn)下拉etLanguages.setOnTouchListener(new View.OnTouchListener() {    @Override    public boolean onTouch(View v, MotionEvent event) {        if (event.getAction() == MotionEvent.ACTION_DOWN) {            // Do what you want            getDataFromNet();        }        return false;    }});public void getDataFromNet() {    // 延時2秒后，修改源數(shù)據(jù)，用來模擬網(wǎng)絡(luò)請求    new Thread(new Runnable() {        @Override        public void run()
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