因为它在主要活动Onitemclicklistener不是在搜寻活动工作作为同 [英] Onitemclicklistener not working as same in search activity as it works in main activity
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问题描述
我有一个显示来自parse.com retrived列表（我知道，被关闭parse.comis，我在进展迁移到我自己的服务器）
现在我所拥有的一切像onitemclick等本次活动的工作，。
但我有一个搜索用户搜索的列表项是否为主要活动的名单present另一个活动，即搜索活动
这也能正常工作，但是当在搜索结果显示在用户应该能够点击期望的结果和被引导到singleitem类，因为它们是，如果他们在主活动
我不能够实现这一点，因为当我点击搜索结果什么也没有发生
我试着implemmenting onitemclicklistener的搜索活动，因为我在主要活动中没有，但没有改变。
我的code
RHE列表inimage和mainactivity的aynctask其onitem clicklistener
私有类RemoteDataTask扩展的AsyncTask＆LT;太虚，太虚，太虚＆GT; {
@覆盖
在preExecute保护无效（）{
super.on preExecute（）;
对话框=新SpotsDialog（InterActivity.this，R.style.Custom）; dialog.show（）;
}
@覆盖
保护无效doInBackground（虚空...... PARAMS）{
//创建数组
codeLIST =新的ArrayList＆LT; codeLIST＆GT;（）;
尝试{
//找到名为国家之类的表中Parse.com
ParseQuery＆LT;＆的parseObject GT;查询=新ParseQuery＆LT;＆的parseObject GT;（
交互）;
//在Parse.com和订单列表找到名为ranknum栏目
//按升序
query.orderByAscending（_ created_at）;
query.setLimit（限制）;
OB = query.find（）;
对（间的parseObject：OB）{
map.setDescription（（字符串）inter.get（副标题））;
map.setIntroduction（（字符串）inter.get（介绍））;
codelist.add（图）
}
}赶上（ParseException的E）{
Log.e（错误，e.getMessage（））;
e.printStackTrace（）;
}
返回null;
} @覆盖
保护无效onPostExecute（虚空结果）{
//定位listview_main.xml列表视图
列表视图=（SwipeMenuListView）findViewById（R.id.inter_layoutListView）;
//将结果传递到ListViewAdapter.java
适配器=新FinalAdapter（InterActivity.this，
codeLIST）;
//绑定适配器到ListView
listview.setAdapter（适配器）;
listview.setOnItemClickListener（InterActivity.this）;
dialog.dismiss（）;}
@覆盖
公共无效onItemClick（适配器视图＆LT;＆GT; P1，观景，INT位置，长P4）
{ ObjectMapper映射器=新ObjectMapper（）;
codeLIST codeS =（codeLIST）adapter.getItem（位置）;
尝试{ 意向意图=新意图（InterActivity.this，SingleItemView.class）; 字符串jsonString = mapper.writeValueAsString（codeS）;
intent.putExtra（选择项，jsonString）; intent.putExtra（副标题
（codelist.get（位置）.getDescription（）））; intent.putExtra（前奏
（codelist.get（位置）.getIntroduction（）））; //开始SingleItemView类
// startActivity（意向）;
startActivityForResult（意向，1）; }赶上（JsonProcessingException E）{
//出事w3ong
}
}
搜索活动
公共类SearchActivity扩展活动
工具OnItemClickListener
{
受保护的EditText searchedittext;
按钮搜索按钮;
清单＆LT;＆的parseObject GT; OB;@覆盖
公共无效的onCreate（捆绑savedInstanceState）
{
// TODO：实现此方法
super.onCreate（savedInstanceState）;
的setContentView（R.layout.search_layout）; searchedittext =（EditText上）findViewById（R.id.search_layoutEditText）; 最终的ListView searchedlist =（ListView控件）findViewById（R.id.searchlist）;
搜寻] =（按钮）findViewById（R.id.searchlayoutbtn）; searchButton.setOnClickListener（新View.OnClickListener（）{ @覆盖
公共无效的onClick（视图v）{
。字符串seaechedit = searchedittext.getText（）的toString（）; 如果（seaechedit.isEmpty（））{ AlertDialog.Builder建设者=新AlertDialog.Builder（SearchActivity.this）;
builder.setMessage（请输入一些搜索查询）
.setTitle（空搜索）
.setPositiveButton（android.R.string.ok，NULL）; AlertDialog对话框= builder.create（）;
dialog.show（）; }
其他{
setProgressBarIndeterminateVisibility（真）;
//交互性是解析数据库类的名称，其中列表视图retrives从数据
ParseQuery＆LT;＆的parseObject GT;查询=新ParseQuery＆LT;＆的parseObject GT;（
交互）; query.whereContains（listheading，seaechedit）;
query.orderByAscending（_ created_at）;
query.setLimit（200）; query.findInBackground（新FindCallback＆LT;＆的parseObject GT;（）{ @覆盖
公共无效完成（列表＆LT;＆的parseObject GT; P1，ParseException的E）
{
setProgressBarIndeterminateVisibility（假）; 如果（E == NULL）{ OB = P1; 的String [] = searchHeadings新的String [ob.size（）]; INT I = 0; // listheading是解析数据库coloumn名
对于（标题的parseObject：OB）{searchHeadings [I] =（字符串）heading.get（listheading）;
我++; } ArrayAdapter＆LT;串GT;适配器=新ArrayAdapter＆LT;串GT;（SearchActivity.this，android.R.layout.simple_list_item_1，searchHeadings）;
searchedlist.setAdapter（适配器）;
searchedlist.setOnItemClickListener（本）;
}其他{ Log.e（searchactivity，e.getMessage（））;
AlertDialog.Builder建设者=新AlertDialog.Builder（SearchActivity.this）;
builder.setMessage（e.getMessage（））
.setTitle（没有找到）
.setPositiveButton（android.R.string.ok，NULL）;
AlertDialog对话框= builder.create（）;
dialog.show（）;
}
}
}）;
}
} }）;}
@覆盖
公共无效onItemClick（适配器视图＆LT;＆GT; P1，观景，INT位置，长P4）
{ ObjectMapper映射器=新ObjectMapper（）;
codeLIST codeS =（codeLIST）adapter.getItem（位置）;
尝试{ 意向意图=新意图（InterActivity.this，SingleItemView.class）; 字符串jsonString = mapper.writeValueAsString（codeS）;
intent.putExtra（选择项，jsonString）; intent.putExtra（副标题
（codelist.get（位置）.getDescription（）））; intent.putExtra（前奏
（codelist.get（位置）.getIntroduction（）））; //开始SingleItemView类
// startActivity（意向）;
startActivityForResult（意向，1）; }赶上（JsonProcessingException E）{
//出事w3ong
} }
解决方案
发现错误
忘了搜索活动来执行RemoteDataTask作为主要activit完成
I have a main activity that displays a list retrived from parse.com( i know that parse.comis being closed and i am in the progress on migrating to my own server)
Now I have everything working in this activity like onitemclick etc,. But I have another activity i.e. search activity that searches whether a list item searched by user is present in main activity's list This too works fine but when the search results are shown the user should be able to click on desired results and be directed to singleitem class as they would be if they were in main activity
I am not able to implement this since when i click on search results nothing happens I tried implemmenting onitemclicklistener for search activity as i did in main activity but no change
My code
aynctask of mainactivity of rhe list inimage and its onitem clicklistener
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
}
}
search activity
public class SearchActivity extends Activity
implements OnItemClickListener {
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.whereContains("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);
searchedlist.setOnItemClickListener(this);
}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();
}
}
});
}
}
});
}
@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
}
}
解决方案
Found the mistake
Forgot to execute RemoteDataTask in search activity as done in main activit
这篇关于因为它在主要活动Onitemclicklistener不是在搜寻活动工作作为同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IT屋！
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