Java AutoCompleteTextView显示错误的结果
这是:我正在键入“di”,但AutoCompleteTextView正在显示不相关的内容 我是这样开始的:Java AutoCompleteTextView显示错误的结果,java,android,android-arrayadapter,android-adapter,autocompletetextview,Java,Android,Android Arrayadapter,Android Adapter,Autocompletetextview,这是:我正在键入“di”,但AutoCompleteTextView正在显示不相关的内容 我是这样开始的: autocompleteAdapter = new AutoCompleteDropdownAdapter(MainActivity.activity, android.R.layout.simple_list_item_1, autoCompleteStrings); etSearch.setAdapter(autocompleteAdapter); 这是我的适配器(我尝试了标准的A
autocompleteAdapter = new AutoCompleteDropdownAdapter(MainActivity.activity,
android.R.layout.simple_list_item_1, autoCompleteStrings);
etSearch.setAdapter(autocompleteAdapter);
这是我的适配器(我尝试了标准的ArrayAdapter,但结果是一样的)
类AutoCompleteDropdownAdapter扩展ArrayAdapter实现可过滤{
活动主体;
行内布局;
列出字符串;
私有ArrayList原始值;
专用阵列滤波器;
公共AutoCompleteDropdownAdapter(活动主、int行布局、列表字符串){
超级(主、行布局、字符串);
this.main=main;
this.rowLayout=rowLayout;
this.strings=字符串;
originalValues=新的ArrayList(字符串);
}
@凌驾
公共视图getView(int位置、视图转换视图、视图组父视图){
返回super.getView(position、convertView、parent);
}
@凌驾
公共过滤器getFilter(){
if(filter==null){
过滤器=新的阵列过滤器();
}
回流过滤器;
}
私有类ArrayFilter扩展筛选器{
私有对象锁;
@凌驾
受保护的筛选器结果执行筛选(字符序列前缀){
FilterResults results=新的FilterResults();
if(originalValues==null){
已同步(锁定){
originalValues=新的ArrayList(字符串);
}
}
if(prefix==null | | prefix.length()==0){
已同步(锁定){
ArrayList=新的ArrayList(原始值);
结果.值=列表;
results.count=list.size();
}
}否则{
最后一个字符串prefixString=prefix.toString().toLowerCase();
ArrayList值=原始值;
int count=values.size();
ArrayList newValues=新ArrayList(计数);
for(int i=0;i0){
notifyDataSetChanged();
}否则{
notifyDataSetionValidated();
}
}
}
现在,当我调试publishResults方法时,它正好显示了我需要的两个结果,但尽管如此,AutoCompleteTextView还是会下拉错误列表,我想您可以从这个示例中找到一些提示:
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity\u recipe\u 033);
ArrayAdapter=新的ArrayAdapter(此,
android.R.layout.simple_下拉列表_项目_1行,国家/地区);
AutoCompleteTextView v=(AutoCompleteTextView)
findViewById(R.id.auto\u complete\u text\u view);
v、 设置适配器(适配器);
}
公用作废按钮单击(查看){
AutoCompleteTextView v=(AutoCompleteTextView)
findViewById(R.id.auto\u complete\u text\u view);
Toast.makeText(this,v.getText(),Toast.LENGTH_SHORT).show();
}
类阵列过滤器扩展过滤器:
更改:
if(item.toLowerCase()包含(前缀字符串)){
致:
如果(item.toLowerCase().startsWith(prefixString)){您是否使用充气器并将文本设置到下拉项?如果您跳过某些内容,请添加适配器的所有代码否,它只是super.getView()
class AutoCompleteDropdownAdapter extends ArrayAdapter<String> implements Filterable {
Activity main;
int rowLayout;
List<String> strings;
private ArrayList<String> originalValues;
private ArrayFilter filter;
public AutoCompleteDropdownAdapter(Activity main, int rowLayout, List<String> strings) {
super(main, rowLayout, strings);
this.main = main;
this.rowLayout = rowLayout;
this.strings = strings;
originalValues = new ArrayList<String>(strings);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
return super.getView(position, convertView, parent);
}
@Override
public Filter getFilter() {
if (filter == null) {
filter = new ArrayFilter();
}
return filter;
}
private class ArrayFilter extends Filter {
private Object lock;
@Override
protected FilterResults performFiltering(CharSequence prefix) {
FilterResults results = new FilterResults();
if (originalValues == null) {
synchronized (lock) {
originalValues = new ArrayList<String>(strings);
}
}
if (prefix == null || prefix.length() == 0) {
synchronized (lock) {
ArrayList<String> list = new ArrayList<String>(originalValues);
results.values = list;
results.count = list.size();
}
} else {
final String prefixString = prefix.toString().toLowerCase();
ArrayList<String> values = originalValues;
int count = values.size();
ArrayList<String> newValues = new ArrayList<String>(count);
for (int i = 0; i < count; i++) {
String item = values.get(i);
if (item.toLowerCase().contains(prefixString)) {
newValues.add(item);
}
}
results.values = newValues;
results.count = newValues.size();
}
return results;
}
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
if(results.values!=null){
ArrayList<String> tempStrings = (ArrayList<String>) results.values;
strings.clear();
strings.addAll(tempStrings);
}else{
strings = new ArrayList<String>();
}
if (results.count > 0) {
notifyDataSetChanged();
} else {
notifyDataSetInvalidated();
}
}
}
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_recipe_033);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_dropdown_item_1line, COUNTRIES);
AutoCompleteTextView v = (AutoCompleteTextView)
findViewById(R.id.auto_complete_text_view);
v.setAdapter(adapter);
}
public void onButtonClick(View view) {
AutoCompleteTextView v = (AutoCompleteTextView)
findViewById(R.id.auto_complete_text_view);
Toast.makeText(this, v.getText(), Toast.LENGTH_SHORT).show();
}