【发布时间】：2016-02-24 07:05:25
【问题描述】：
我有一个新的搜索活动，它有一个用于输入搜索查询的编辑文本和一个用于搜索在EditText 中输入的查询的搜索按钮
搜索到的项目在搜索活动中显示在ListView中
现在的问题是我有一个ListView，用户可以从那里搜索所需的内容
让我们假设这个列表视图有 100 个列表项，其中所有命名为 ：
- 测试标题 1，
- 测试标题 2，
- 测试标题 3，
-
测试标题 4，
以此类推，直到测试标题 100
现在在editext的搜索活动中，如果我输入“test”并按下搜索按钮，它应该会显示所有列表，因为每个列表项标题都在其标题中包含测试，但我什么也没得到
我必须输入整个标题才能完成搜索，如“test heading 1”，匹配的标题显示在列表中
如果我在edittext中输入“test”并按下搜索按钮，我怎样才能使搜索更好，它应该在其标题中显示所有包含测试词的项目
现在我正在使用 parse.com 将数据检索到 listview 中（悲伤 thar parse.com 正在关闭），并且我正在将我的数据库迁移到 m6 自己的服务器
我尝试过的代码
搜索活动
public class SearchActivity extends Activity
{
protected EditText searchedittext;
Button searchButton;
List<ParseObject> ob;
@Override
public void onCreate(Bundle savedInstanceState )
{
// TODO: Implement this method
super.onCreate(savedInstanceState);
setContentView(R.layout.search_layout);
searchedittext = (EditText) findViewById(R.id.search_layoutEditText);
final ListView searchedlist = (ListView) findViewById(R.id.searchlist);
searchButton = (Button) findViewById(R.id.searchlayoutbtn);
searchButton.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
String seaechedit = searchedittext.getText().toString();
if(seaechedit.isEmpty()){
AlertDialog.Builder builder = new AlertDialog.Builder(SearchActivity.this);
builder.setMessage("PLEASE ENTER SOME SEARCH QUERY")
.setTitle("EMPTY SEARCH")
.setPositiveButton(android.R.string.ok, null);
AlertDialog dialog = builder.create();
dialog.show();
}
else{
setProgressBarIndeterminateVisibility(true);
// InterActivity is the class name in parse database where listview retrives it data from
ParseQuery<ParseObject> query = new ParseQuery<ParseObject>(
"InterActivity");
query.whereEqualTo("listheading", seaechedit);
query.orderByAscending("_created_at");
query.setLimit(200);
query.findInBackground(new FindCallback<ParseObject>() {
@Override
public void done(List<ParseObject> p1, ParseException e)
{
setProgressBarIndeterminateVisibility(false);
if(e == null){
ob = p1;
String [] searchHeadings = new String[ob.size()];
int i = 0;
// listheading is the coloumn name in parse database
for(ParseObject heading : ob){ searchHeadings[i] = (String) heading.get("listheading");
i++;
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>( SearchActivity.this, android.R.layout.simple_list_item_1, searchHeadings );
searchedlist.setAdapter(adapter);
}else{
Log.e("searchactivity", e.getMessage());
AlertDialog.Builder builder = new AlertDialog.Builder(SearchActivity.this);
builder.setMessage(e.getMessage())
.setTitle("Nothing found")
.setPositiveButton(android.R.string.ok, null);
AlertDialog dialog = builder.create();
dialog.show();
}
}
});
}
}
});
}
}
第一张图片中列表的活动的aynctask
private class RemoteDataTask extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
dialog = new SpotsDialog(InterActivity.this, R.style.Custom);
dialog.show();
}
@Override
protected Void doInBackground(Void... params) {
// Create the array
codelist = new ArrayList<CodeList>();
try {
// Locate the class table named "Country" in Parse.com
ParseQuery<ParseObject> query = new ParseQuery<ParseObject>(
"InterActivity");
// Locate the column named "ranknum" in Parse.com and order list
// by ascending
query.orderByAscending("_created_at");
query.setLimit(limit);
ob = query.find();
for (ParseObject inter : ob) {
map.setDescription((String) inter.get("subheading"));
map.setIntroduction((String) inter.get("intro"));
codelist.add(map);
}
} catch (ParseException e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void result) {
// Locate the listview in listview_main.xml
listview = (SwipeMenuListView) findViewById(R.id.inter_layoutListView);
// Pass the results into ListViewAdapter.java
adapter = new FinalAdapter(InterActivity.this,
codelist);
// Binds the Adapter to the ListView
listview.setAdapter(adapter);
listview.setOnItemClickListener(InterActivity.this);
dialog.dismiss();
}
@Override
public void onItemClick(AdapterView<?> p1, View view, int position, long p4)
{
ObjectMapper mapper = new ObjectMapper();
CodeList codes = (CodeList) adapter.getItem(position);
try{
Intent intent = new Intent(InterActivity.this, SingleItemView.class);
String jsonString = mapper.writeValueAsString(codes);
intent.putExtra("selected item", jsonString);
intent.putExtra("subheading",
(codelist.get(position).getDescription()));
intent.putExtra("intro",
(codelist.get(position).getIntroduction()));
// Start SingleItemView Class
// startActivity(intent);
startActivityForResult(intent, 1);
}catch(JsonProcessingException e){
//something went w3ong
}
}
【问题讨论】：
标签： android listview search parse-platform