我必须在listview中的Edittext项目上添加搜索功能来自baseadapter 我正在使用此代码,但.getFilter()。filter(s.toString());不来了
我的代码是:
approvedfriendList.setAdapter(new ApprovedList());
//*********Search Functionality in Approved Friend List************************
serch_item.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// TODO Auto-generated method stub
// approvedfriendList.getFilterTouchesWhenObscured().f
}
@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
}
});
approvedfriendList is ArrayList
我在这里没有得到如何使用.getFilter()。filter(s.toString()); with ApprovedList()(基本适配器类)
答案 0 :(得分:0)
首先,您应该通过添加以下代码行启用列表视图进行过滤:
list.setTextFilterEnabled(true);
然后只需在文本视图中添加文本观察器:
text.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
adapter.getFilter().filter( s.toString());
list.setAdapter(adapter);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void afterTextChanged(Editable prefix) {
}
});
答案 1 :(得分:0)
我在我的应用中实现了对联系人的搜索。 Followimg是代码的一部分:
searchContacts.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
temp.clear();
for (int i = 0; i < emailIds.size(); i++) {
if (emailIds.get(i).toLowerCase().startsWith(s.toString())) {
temp.add(emailIds.get(i));
}
}
Collections.sort(temp);
contacts.notifyDataSetChanged();
for (int i = 0; i < temp.size(); i++) {
if (sqlHandler.isChecked(temp.get(i))) {
lvContacts.setItemChecked(i, true);
} else {
lvContacts.setItemChecked(i, false);
}
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable s) {
}
});