我有ArrayAdapter这个项目的结构:
< XML版本=1.0编码=UTF-8&GT?;
< RelativeLayout的...>
<的TextView
机器人:ID =@ + ID / itemTextView
... />
< / RelativeLayout的>
和添加此适配器,以便:
mAdapter =新的ArrayAdapter<字符串>(这一点,R.layout.item,
R.id.itemTextView,itemsText);
一切都很好,但我想更新适配器的项目文本。我找到了解决方法
mAdapter.notifyDataSetChanged();
但不知道如何使用它。请帮助。
UPD 我的code:
的String [] itemsText = {123,345,567};
ArrayAdapter<字符串> mAdapter;
的onCreate
mAdapter =新的ArrayAdapter<字符串>(这一点,R.layout.roomitem,
R.id.itemTextView,itemsText);
setListAdapter(mAdapter);
itemsText = {789,910,1011};
的onClick
mAdapter.notifyDataSetChanged();
//这是不工作
解决方案
我觉得这样的事情
公共无效updatedData(名单itemsArrayList){
mAdapter.clear();
如果(itemsArrayList!= NULL){
对于(Object对象:itemsArrayList){
mAdapter.insert(对象,mAdapter.getCount());
}
}
mAdapter.notifyDataSetChanged();
}
I have ArrayAdapter with this items structure:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout ... >
<TextView
android:id="@+id/itemTextView"
... />
</RelativeLayout>
And add this adapter so:
mAdapter = new ArrayAdapter<String>(this, R.layout.item,
R.id.itemTextView, itemsText);
All is fine but I want to update text in adapter's items. I found a solution
mAdapter.notifyDataSetChanged();
but do not understand how to use it. Help please.
upd My code:
String[] itemsText = {"123", "345", "567"};
ArrayAdapter<String> mAdapter;
onCreate
mAdapter = new ArrayAdapter<String>(this, R.layout.roomitem,
R.id.itemTextView, itemsText);
setListAdapter(mAdapter);
itemsText = {"789", "910", "1011"};
onClick
mAdapter.notifyDataSetChanged();
//it's dont work
解决方案
I think something like this
public void updatedData(List itemsArrayList) {
mAdapter.clear();
if (itemsArrayList != null){
for (Object object : itemsArrayList) {
mAdapter.insert(object, mAdapter.getCount());
}
}
mAdapter.notifyDataSetChanged();
}
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