Android的自动完成文本框，设定自己的具体建议？ [英] Android AutoComplete TextBox, setting your own specific suggestions?

问题描述

我有一些技术上的问题在这里，比如我有一个自动完成文本框包含此列表中，[巴林，白俄罗斯，巴哈马]适配器。如果我输入例如啊，我想在autocomplete_textbox这两个下拉列表显示，[巴林，巴哈马]，因为这两个包含啊（B啊AMAS和B的子串啊雨）。

I have some technical problems here, for example I have an adapter for autocomplete textbox that contains this list, [ Bahrain, Belarus, Bahamas]. If I typed for example "ah", I want to display in the drop-down of autocomplete_textbox these two, [Bahrain, Bahamas], since those two contains a substring of "ah" (B"ah"amas and B"ah"rain).

请帮我，已经搞清楚了这一点了一个星期。 （

Please help me, been figuring this out for a week. :(

下面是我的code：

里面的onCreate（）我的主要活动方式：

Inside onCreate() method of my main activity:

    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    countries = getResources().getStringArray(R.array.countries_array);       
    textView = (AutoCompleteTextView) findViewById(R.id.autocomplete_country);     

    TextWatcher textChecker = new TextWatcher() {
        @Override
        public void afterTextChanged(Editable s) {
            // TODO Auto-generated method stub
        }

        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after)                            {
            // TODO Auto-generated method stub
        }

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {

            String enteredText = textView.getText().toString();
            refreshList(enteredText);
            textView.showDropDown();
        }
    };        

    textView.addTextChangedListener(textChecker);   

}

public void refreshList(String text) {
    adapter = new ArrayAdapter<String>(this, R.layout.list_item, fetchTop20(countries, text));
    textView.setThreshold(1);
    textView.setAdapter(adapter);
}



public List<String> fetchTop20(String[] countries, String strToFind){


     List<String> arrList_countries =  Arrays.asList(countries);
     List<String> arrList_strTop20 = new ArrayList<String>();

     int ctrToTwenty = 0;
     for(String currCountry: arrList_countries)
     {
         if(currCountry.toLowerCase().contains(strToFind.toLowerCase()))
         {
             arrList_strTop20.add(currCountry);
             ctrToTwenty++;
         }
         if(ctrToTwenty == 20)
         {

             break;
         }           
     }
     Log.i(TAG, "strToFind: "+ strToFind);
     Log.i(TAG, "strTop20: "+arrList_strTop20);

     return arrList_strTop20;
}  

我AutoCompleteTextBox的适配器做包含[巴哈马，巴林]里面的列表，但其实际的建议包含什么。这工作如果键入呸（但应键入它来显示单词的第一个字母）。（

My AutoCompleteTextBox's adapter do contains a List with [Bahamas, Bahrain] inside, but its actual suggestion contains nothing. This works if you typed "Bah"(though you should type the first letter of the word for it to display):(.

任何建议Android的专家？还，因为我的code的自动完成过滤不是在一个单独的线程中运行，请告诉我如何优化这个或告诉我怎么线程这个code优化。谢谢。

Any suggestion android experts?, also, since my code's autocomplete filtering isn't running in a separate thread, please tell me how to optimize this or show me how to thread this code for optimization. thanks.

推荐答案

只需回答标题中的问题...

Just answering the question in the title...

自定义自动完成在Android中

的http://developer.android.com/resources/tutorials/views/hello-autocomplete.html

-

阅读张贴的整个问题后...

After reading the whole question posted...

综观文档，它看起来像解决方案是让一个自定义的 ListAdapter 使用自定义的 过滤器 。

Looking at the docs, it looks like the solution is to make a custom ListAdapter with a custom Filter.

谷歌搜索打开了使用自定义过滤器的例子几秒钟：的自动完成的项目消失

Google searching for a few seconds turned up an example of using a custom Filter: Autocomplete items disappearing

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