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...
的
-
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。
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
Google searching for a few seconds turned up an example of using a custom Filter
: Autocomplete items disappearing
这篇关于Android的自动完成文本框,设定自己的具体建议?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!