問題描述
我有一個(gè)作為搜索欄的編輯文本和一個(gè)過濾我輸入的文本的列表視圖，但不幸的是，它不會(huì)過濾列表視圖.我使用了帶有對象 Friend 的自定義數(shù)組適配器.朋友對象有名字、地址和電話號碼，但我只想過濾它的名字.在我的活動(dòng)中...
searchBarTextView.addTextChangedListener(new TextWatcher() {@覆蓋public void onTextChanged(CharSequence s, int start, int before, int count) {friendListAdapter.getFilter().filter(s);}}在適配器中...
<前>@覆蓋公共過濾器getFilter(){Log.d(TAG, "開始 getFilter");if(newFilter == null) {新過濾器 = 新過濾器() {@覆蓋protected void publishResults(CharSequence 約束，F(xiàn)ilterResults 結(jié)果) {//TODO 自動(dòng)生成的方法存根Log.d(TAG, "發(fā)布結(jié)果");notifyDataSetChanged();}
<代碼> @Override受保護(hù)的FilterResults performFiltering(CharSequence約束){Log.d(TAG, "執(zhí)行過濾");約束 = 約束.toString().toLowerCase();Log.d(TAG, "約束:"+約束);列出<ChatObject>filtersFriendList = new LinkedList有人可以幫我如何正確顯示過濾后的數(shù)組適配器嗎?我認(rèn)為 notifyDataSetChanged 沒有被調(diào)用.謝謝.
我的問題解決了，發(fā)現(xiàn)我要重寫 getCount() 和 getItem().
I have an edit text as a search bar and a list view that filters the text that I typed but unfortunately, it doesn't filter the list view. I have used an customize array adapter with object Friend. Friend object has name, address and phone number but I only want to filter its name. In my activity...
searchBarTextView.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
friendListAdapter.getFilter().filter(s);
}}
While in adapter...
@Override
public Filter getFilter() {
Log.d(TAG, "begin getFilter");
if(newFilter == null) {
newFilter = new Filter() {
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
// TODO Auto-generated method stub
Log.d(TAG, "publishResults");
notifyDataSetChanged();
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
Log.d(TAG, "performFiltering");
constraint = constraint.toString().toLowerCase();
Log.d(TAG, "constraint : "+constraint);
List<ChatObject> filteredFriendList = new LinkedList<ChatObject>();
for(int i=0; i<friendList.size(); i++) {
Friend newFriend = friendList.get(i);
Log.d(TAG, "displayName : "+newFriend.getDisplayName().toLowerCase());
if(newFriend.getDisplayName().toLowerCase().contains(constraint)) {
Log.d(TAG, "equals : "+newFriend.getDisplayName());
filteredFriendList.add(newFriend);
}
}
FilterResults newFilterResults = new FilterResults();
newFilterResults.count = filteredFriendList.size();
newFilterResults.values = filteredFriendList;
return newFilterResults;
}
};
}
Log.d(TAG, "end getFilter");
return newFilter;
}
Could someone please help me how to correctly show the filtered array adapter? I think the notifyDataSetChanged is not invoked. Thanks.
My problem is solved, found out that I have to override getCount() and getItem().
這篇關(guān)于從編輯文本中過濾列表視圖的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！