[英]Android - Listview not getting filtered
I not able to find error- I have to filter listview item according to search. 我找不到错误-我必须根据搜索过滤listview项。 But not work.
但是不行。 Here is code
这是代码
EditText TextWatcher code :- EditText TextWatcher代码:-
getEdit_myOrderSearch().addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
adapter.getFilter().filter(s);
Log.d("", "CharSequence : " + s);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable s) {
// TODO Auto-generated method stub
}
});
Here is Adapter code:- 这是适配器代码:-
public class Adpater extends BaseAdapter implements Filterable {
private Context mContext;
private LayoutInflater inflater;
private List<Order> orignailOrders;
private List<Order> filterOrders;
public Adpater(Context context, List<Order> orders) {
this.mContext = context;
this.orignailOrders = orders;
this.filterOrders = orders;
inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
final ViewHolder viewHolder;
if (convertView == null) {
viewHolder = new ViewHolder();
convertView = inflater.inflate(R.layout.custom_myorder, parent,
false);
viewHolder.orderCode = (TextView) convertView
.findViewById(R.id.txt_custom_order_code);
viewHolder.orderTopic = (TextView) convertView
.findViewById(R.id.txt_custom_order_topic);
viewHolder.orderDate = (TextView) convertView
.findViewById(R.id.txt_custom_order_date);
viewHolder.orderStatus = (TextView) convertView
.findViewById(R.id.txt_custom_order_status);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.orderCode
.setText(filterOrders.get(position).getOrder_code());
viewHolder.orderTopic.setText(filterOrders.get(position).getTopic());
viewHolder.orderDate.setText(formattedDate);
viewHolder.orderStatus.setText(filterOrders.get(position)
.getProject_status());
return convertView;
}
@Override
public Filter getFilter() {
Filter filter = new Filter() {
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint,
FilterResults results) {
filterOrders = (ArrayList<Order>) results.values;
notifyDataSetChanged();
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults results = new FilterResults();
ArrayList<Order> FilteredArrList = new ArrayList<Order>();
if (orignailOrders == null) {
orignailOrders = new ArrayList<Order>(filterOrders);
}
if (constraint == null || constraint.length() == 0) {
} else {
constraint = constraint.toString().toLowerCase();
for (int i = 0; i < orignailOrders.size(); i++) {
String data = orignailOrders.get(i).getId();
if (data.toLowerCase()
.startsWith(constraint.toString())) {
FilteredArrList.add(new Order(orignailOrders.get(i)
.getOrder_code(), orignailOrders.get(i)
.getTopic(), orignailOrders.get(i)
.getDdate(), orignailOrders.get(i)
.getProject_status()));
}
}
results.count = FilteredArrList.size();
results.values = FilteredArrList;
}
return results;
}
};
return filter;
}}
Unused code removed from adapter. 未使用的代码已从适配器中删除。
Help please and Thanks in advance. 请帮助,并提前致谢。
Edit your adapter code, you miss two lines there ie 编辑您的适配器代码,您错过了两行,即
results.count = orignailOrders.size();
results.values = orignailOrders;
Here is full Adapter code just replace it. 这是完整的适配器代码,只需将其替换即可。
public class Adpater extends BaseAdapter implements Filterable {
if (convertView == null) {
viewHolder = new ViewHolder();
convertView = inflater.inflate(R.layout.custom_myorder, parent,
false);
viewHolder.orderCode = (TextView) convertView
.findViewById(R.id.txt_custom_order_code);
viewHolder.orderTopic = (TextView) convertView
.findViewById(R.id.txt_custom_order_topic);
viewHolder.orderDate = (TextView) convertView
.findViewById(R.id.txt_custom_order_date);
viewHolder.orderStatus = (TextView) convertView
.findViewById(R.id.txt_custom_order_status);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.orderCode
.setText(filterOrders.get(position).getOrder_code());
viewHolder.orderTopic.setText(filterOrders.get(position).getTopic());
viewHolder.orderDate.setText(formattedDate);
viewHolder.orderStatus.setText(filterOrders.get(position)
.getProject_status());
return convertView;
}
@Override
public Filter getFilter() {
Filter filter = new Filter() {
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint,
FilterResults results) {
filterOrders = (ArrayList<Order>) results.values;
notifyDataSetChanged();
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults results = new FilterResults();
ArrayList<Order> FilteredArrList = new ArrayList<Order>();
if (orignailOrders == null) {
orignailOrders = new ArrayList<Order>(filterOrders);
}
if (constraint == null || constraint.length() == 0) {
result.count= orignalOrder.size();
result.values=orignalOrders;// this line is missing
} else {
constraint = constraint.toString().toLowerCase();
for (int i = 0; i < orignailOrders.size(); i++) {
String data = orignailOrders.get(i).getId();
if (data.toLowerCase()
.startsWith(constraint.toString())) {
FilteredArrList.add(new Order(orignailOrders.get(i)
.getOrder_code(), orignailOrders.get(i)
.getTopic(), orignailOrders.get(i)
.getDdate(), orignailOrders.get(i)
.getProject_status()));
}
}
results.count = FilteredArrList.size();
results.values = FilteredArrList;
}
return results;
}
};
return filter;
}
}
This will help you. 这将为您提供帮助。
This is not the right way to make a searchable ListView and I guess you need many more things in order to get it. 这不是制作可搜索ListView的正确方法,我想您需要更多的东西才能获得它。
First you need to declare a new searchable filter within your activity at the manifest file. 首先,您需要在清单文件中的活动中声明一个新的可搜索过滤器。
<activity
android:name=".Main"
android:configChanges="orientation|screenSize"
android:label="@string/app_name"
android:launchMode="singleTop" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<action android:name="android.intent.action.SEARCH" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data
android:name="android.app.searchable"
android:resource="@xml/searchable" >
</meta-data>
</activity>
Then you have to define your searchable item in res/xml/searchable.xml 然后,您必须在res / xml / searchable.xml中定义您的可搜索项
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="@string/app_name"
android:hint="@string/search_hint"
android:voiceSearchMode="showVoiceSearchButton|launchRecognizer">
And finally you have to handle all the incoming searchables intents in the activity which contains your listView 最后,您必须处理包含listView的活动中所有传入的可搜索对象
@Override
protected void onResume() {
super.onResume();
mQueryTask = new QueryRemoteUnits();
mQueryTask.execute();
handleIntent(getIntent());
}
private void handleIntent(Intent intent) {
if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
String query = intent.getStringExtra(SearchManager.QUERY);
executeSearch(query);
} else {
executeSearch();
}
}
private void executeSearch() {
if (mSearchTask != null) {
mSearchTask.cancel(true);
}
if (mSearchView != null && !mSearchView.isIconified()) {
String query = mSearchView.getQuery().toString();
mSearchTask = new SearchRemoteUnits(query);
} else {
mSearchTask = new SearchRemoteUnits();
}
mSearchTask.execute();
}
private void executeSearch(String namePattern) {
if (mSearchTask != null) {
mSearchTask.cancel(true);
}
mSearchTask = new SearchRemoteUnits(namePattern);
mSearchTask.execute();
}
In the link bellow, you have a detailed description about how to build a searchable interface. 在下面的链接中,您具有有关如何构建可搜索界面的详细说明。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.