我正在尝试使用西里尔语开发搜索应用程序。我有一个edittext和listview。我想在listview中搜索edittext的内容。我有自定义列表视图。这是我的代码：
以下是主要活动：
package com.searchapplication;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.ListView;
import java.util.ArrayList;
public class MainActivity extends ActionBarActivity {
private LinearLayout llContainer;
private EditText etSearch;
private ListView lvProducts;
private ArrayList<Municipality> mProductArrayList = new ArrayList<Municipality>();
private MyAdapter adapter1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initialize();
mProductArrayList.add(new Municipality("1", getResources().getString(R.string.skopje)));
mProductArrayList.add(new Municipality("2", getResources().getString(R.string.skopska_crna_gora)));
mProductArrayList.add(new Municipality("3", getResources().getString(R.string.saraj)));
mProductArrayList.add(new Municipality("4", getResources().getString(R.string.kumanovo)));
mProductArrayList.add(new Municipality("5", getResources().getString(R.string.kratovo)));
adapter1 = new MyAdapter(MainActivity.this, mProductArrayList);
lvProducts.setAdapter(adapter1);
etSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// Call back the Adapter with current character to Filter
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void afterTextChanged(Editable s) {
adapter1.getFilter().filter(s);
}
});
}
private void initialize() {
etSearch = (EditText) findViewById(R.id.etSearch);
lvProducts = (ListView)findViewById(R.id.lvProducts);
}
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
以下是模型的代码：
package com.searchapplication;
public class Municipality {
private String id;
private String name;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Municipality(String id, String name) {
this.id = id;
this.name = name;
}
@Override
public String toString() {
return name;
}
}
这是我的自定义适配器：
package com.searchapplication;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Filter;
import android.widget.Filterable;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.util.ArrayList;
public class MyAdapter extends BaseAdapter implements Filterable{
private ArrayList<Municipality> mOriginalValues; // Original Values
private ArrayList<Municipality> mDisplayedValues; // Values to be displayed
LayoutInflater inflater;
Context context;
public MyAdapter(Context context, ArrayList<Municipality> mProductArrayList) {
this.mOriginalValues = mProductArrayList;
this.mDisplayedValues = mProductArrayList;
inflater = LayoutInflater.from(context);
this.context=context;
}
@Override
public int getCount() {
return mDisplayedValues.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
private class ViewHolder {
LinearLayout llContainer;
TextView tvName, tvPrice;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
holder = new ViewHolder();
convertView = inflater.inflate(R.layout.row, null);
holder.llContainer = (LinearLayout) convertView.findViewById(R.id.llContainer);
holder.tvName = (TextView) convertView.findViewById(R.id.tvName);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.tvName.setText(mDisplayedValues.get(position).getName());
holder.llContainer.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
}
});
return convertView;
}
@Override
public Filter getFilter() {
Filter filter = new Filter() {
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
mDisplayedValues = (ArrayList<Municipality>) results.values; // has the filtered values
notifyDataSetChanged(); // notifies the data with new filtered values
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults results = new FilterResults(); // Holds the results of a filtering operation in values
ArrayList<Municipality> FilteredArrList = new ArrayList<Municipality>();
if (mOriginalValues == null) {
mOriginalValues = new ArrayList<Municipality>(mDisplayedValues); // saves the original data in mOriginalValues
}
/********
*
* If constraint(CharSequence that is received) is null returns the mOriginalValues(Original) values
* else does the Filtering and returns FilteredArrList(Filtered)
*
********/
if (constraint == null || constraint.length() == 0) {
// set the Original result to return
results.count = mOriginalValues.size();
results.values = mOriginalValues;
} else {
constraint = constraint.toString().toLowerCase();
for (int i = 0; i < mOriginalValues.size(); i++) {
String data = mOriginalValues.get(i).getName();
if (data.toString().toLowerCase().contains(constraint)) {
FilteredArrList.add(new Municipality(mOriginalValues.get(i).getId(), mOriginalValues.get(i).getName()));
}
}
// set the Filtered result to return
results.count = FilteredArrList.size();
results.values = FilteredArrList;
}
return results;
}
};
return filter;
}
}
这是布局：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
tools:context=".MainActivity">
<EditText
android:id="@+id/etSearch"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<ListView
android:id="@+id/lvProducts"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
></ListView>
</RelativeLayout>
以下是行的布局：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/llContainer">
<TextView
android:id="@+id/tvName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:singleLine="true"
android:layout_weight="1"
/>
</LinearLayout>
这是字符串资源文件：
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">SearchApplication</string>
<string name="hello_world">Hello world!</string>
<string name="action_settings">Settings</string>
<string name="skopje">Скопје</string>
<string name="skopska_crna_gora">Скопска</string>
<string name="saraj">Сарај</string>
<string name="kumanovo">Куманово</string>
<string name="kratovo">Кратово</string>
<string name="kriva_palanka">Крива Паланка</string>
<string name="kicevo">Кичево</string>
<string name="kamenica">Каменица</string>
<string name="makedonska_kamenica">Македонска Каменица</string>
<string name="makedonski_brod">Македонски Брод</string>
<string name="struga">Струга</string>
<string name="tetovo">Тетово</string>
<string name="prefix">скоп</string>
</resources>
问题是，当我输入с或ск时，一切正常，但是当我输入ско时没有结果
这段代码不会返回true：
if (data.toString().toLowerCase().contains(constraint))
我正在使用马其顿键盘。