我有一个列表视图
和的EditText
字段,我想实现搜索,但我的列表视图
是一个自定义的列表视图
填充类项目的对象的数组。当我preSS键全列表视图
走了,所以我想这个问题是,它无法比拟的字符与类产品,这就是为什么没有结果时,我$ P的对象$ PSS的关键。
这是我的code
i have a listview
and EditText
field and i wanna implement search, but my listview
is a custom listview
populated with array of objects of class Item. And when i press key whole listview
gone so i guess the problem is that it cannot match char with object of class Item that's why there is no results when i press a key.
this is my code
filterText = (EditText) findViewById(R.id.editTextfilter);
filterText.addTextChangedListener(filterTextWatcher);
m_items = new ArrayList<Item>();
phoneList=(ListView)findViewById(android.R.id.list);
phoneList.setTextFilterEnabled(true);
this.m_adapter = new ItemAdapter(this,R.layout.row,m_items);
phoneList.setAdapter(this.m_adapter);
private TextWatcher filterTextWatcher = new TextWatcher() {
public void afterTextChanged(Editable s) {
}
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
public void onTextChanged(CharSequence s, int start, int before,
int count) {
m_adapter.getFilter().filter(s.toString());
}
};
@Override
protected void onDestroy() {
super.onDestroy();
filterText.removeTextChangedListener(filterTextWatcher);
}
任何帮助,如何得到它的工作原理
any help how to get it works
我也有类似的要求。我已经使用了一个自定义过滤器。
I had a similar requirement. I have used a custom Filter.
ArrayList<PostData> mPostingData = null;//arraylist of class items
ArrayList<PostData> mTemp = new ArrayList<PostData>();//temporary arraylist of class items
ArrayList<PostData> mOri = new ArrayList<PostData>();//Original arraylist
getListView().setTextFilterEnabled(true);
search= (EditText) findViewById(R.id.searchbox);
search.addTextChangedListener(new TextWatcher() {
public void onTextChanged(CharSequence s, int start, int before, int count) {
mCustomListView.getFilter().filter(s);
mCustomListView.notifyDataSetChanged();
}
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
public void afterTextChanged(Editable s) {
}
});
POJO类
POJO Class
class PostData {
String mID;
String mPostedBy;
String mTitle;
String mMessage;
String mImageUrl;
String mVideoUrl;
String mType ;
boolean me=false;
}
自定义列表视图与重写过滤器的方法。搜寻基于POJO类mTitle
Custom List View with Filter method overriden. Search based on mTitle of POJO Class
class CustomListView extends ArrayAdapter {
Context context;
LayoutInflater mInflater;
private Bitmap mIcon1;
private Bitmap mIcon2;
private Bitmap mIcon3;
PostData mp ;
public CustomListView(Context c)
{
super(c, 0);
mInflater = (LayoutInflater)c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mIcon1 = BitmapFactory.decodeResource(c.getResources(), R.drawable.text_icon);
mIcon2 = BitmapFactory.decodeResource(c.getResources(), R.drawable.image_icon);
mIcon3 = BitmapFactory.decodeResource(c.getResources(), R.drawable.video_icon);
}
public int getCount() {
if(mPostingData!=null){
return mPostingData.size();
}else{
return 0;
}
}
public void setData(ArrayList<PostData> mPpst) {
mPostingData = mPpst;//contains class items data.
}
@Override
public Filter getFilter() {
return new Filter() {
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
if (results != null && results.count >= 0) {
setData((ArrayList<PostData>) results.values);//if results of search is null set the searched results data
} else {
setData(mOri);// set original values
}
notifyDataSetInvalidated();
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults result = new FilterResults();
if (!TextUtils.isEmpty(constraint)) {
constraint = constraint.toString().toLowerCase();
ArrayList<PostData> foundItems = new ArrayList<PostData>();
if(mTemp!=null)
{
for(int i=0;i<mTemp.size();i++)
{
//If mTitle contains the string entered in Editext
if (mTemp.get(i).mTitle.toString().contains(constraint)) {
foundItems.add(mTemp.get(i));
}
else
{
}
}
}
result.count = foundItems.size();//search results found return count
result.values = foundItems;// return values
}
else
{
result.count=-1;// no search results found
}
return result;
}
};
}
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
///int type = getItemViewType(arg0);
Log.i("Aru","get View");
if(mPostingData == null ){
return null;
}
if (convertView == null) {
convertView = mInflater.inflate(R.layout.listviewimg, null);
convertView.setLayoutParams(new AbsListView.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
// Creates a ViewHolder and store references to the two children views
// we want to bind data to.
holder = new ViewHolder();
holder.ll=(LinearLayout) convertView.findViewById(R.id.lvid);
holder.text = (TextView) convertView.findViewById(R.id.texttitle);
holder.text2 = (TextView) convertView.findViewById(R.id.tvst);
holder.icon = (ImageView) convertView.findViewById(R.id.llimage);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
mp = mPostingData.get(position);
String title = mp.mType;
if(mp.mTitle!=null && Name.equals(mp.mPostedBy )){
title = mp.mTitle+" "+title;
//holder.text.setBackgroundColor(Color.WHITE);
holder.ll.setBackgroundResource(R.drawable.listbkgme);
holder.text.setText(title);
}
else if(mp.mTitle!=null && Name!=mp.mPostedBy)
{
title = mp.mTitle+" "+title;
holder.text.setText(title);
}
if(mp.mMessage!=null && Name.equals(mp.mPostedBy )){
holder.ll.setBackgroundResource(R.drawable.listbkgme);
holder.text2.setText(mp.mMessage);
}
else if(mp.mMessage!=null && Name!=(mp.mPostedBy))
{
holder.text2.setText(mp.mMessage);
}
if(mp.mImageUrl!=null ){
holder.icon.setImageBitmap(mIcon2);
}else if(mp.mVideoUrl!=null){
holder.icon.setImageBitmap(mIcon3);
}else{
holder.icon.setImageBitmap(mIcon1);
}
return convertView;
}
class ViewHolder {
TextView text;
TextView text2;
ImageView icon;
LinearLayout ll;
}
public long getItemId(int position) {
return position;
}
}
修改上面根据您的要求。我已经测试了code和它的作品。
Modify the above according to your requirements. I have tested the code and it works.