[android-developers] Disabling records in a List View
I have a list view which is populated via records from the database.
Now i have to make some records visible but unavailable for selection,
how can i achieve that?
here's my code
public class SomeClass extends ListActivity {
private static ListString products;
private DataHelper dh;
public void onCreate(Bundle savedInstanceState) {
dh = new DataHelper(this);
products = dh.GetMyProducts(); /* Returns a ListString*/
super.onCreate(savedInstanceState);
setListAdapter(new ArrayAdapterString(this,
R.layout.myproducts,
products));
ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(
new OnItemClickListener() {
@Override
public void onItemClick(AdapterView? arg0,
View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(),
((TextView)
arg1).getText(),
Toast.LENGTH_SHORT).show();
}
}
);
}
}
The layout file myproducts.xml is as follows
?xml version=1.0 encoding=utf-8?
TextView xmlns:android=http://schemas.android.com/apk/res/android;
android:layout_width=fill_parent
android:layout_height=wrap_content
android:padding=10dp
android:textSize=16sp
/TextView
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[android-developers] Re: Disabling records in a List View
Thanks Mark, I'll try it out. Cheers! On Apr 18, 6:20 pm, Mark Murphy mmur...@commonsware.com wrote: Prathamesh Shetye wrote: I have a list view which is populated via records from the database. Now i have to make some records visible but unavailable for selection, how can i achieve that? Step #1: Create your own subclass of ArrayAdapter Step #2: Override areAllItemsEnabled() in that subclass to return false Step #3: Override isItemEnabled() in that subclass to return true for the enabled positions and false for the disabled positions Note that disabled rows do not get dividers around them. Dividers only separate a pair of enabled rows. -- Mark Murphy (a Commons Guy)http://commonsware.com|http://twitter.com/commonsguy Warescription: Three Android Books, Plus Updates, One Low Price! -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Disabling records in a List View
Hi Mark, Here's what I did
My Existing Class extending ListActivity
/
***/
public class LifeProducts extends ListActivity {
private static ListString products;
private static ListString actives;
private DataHelper dh;
private ListMyProducts ips;
public void onCreate(Bundle savedInstanceState) {
dh = new DataHelper(this);
ips = dh.GetMyProducts();
products = new ArrayListString();
actives = new ArrayListString();
for(MyProducts ip : ips){
products.add(ip.name);
if (ip.active == 0)
actives.add(N);
else
actives.add(Y);
}
super.onCreate(savedInstanceState);
ProductAdapterString pas = new ProductAdapterString(this,
R.layout.life_products, products);
pas.setActiveList(actives);
setListAdapter(pas);
ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(
new OnItemClickListener() {
@Override
public void onItemClick(AdapterView? arg0,
View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(),
((TextView)
arg1).getText(),
Toast.LENGTH_SHORT).show();
}
}
);
}
}
and here's how i overloaded the ArrayAdapter
/
***/
@SuppressWarnings({ unchecked, hiding })
public class ProductAdapterString extends ArrayAdapter{
public ProductAdapter(Context context, int textViewResourceId, List
objects) {
super(context, textViewResourceId, objects);
// TODO Auto-generated constructor stub
}
public ListString actives;
public void setActiveList(ListString act){
actives = act;
}
@Override
public boolean areAllItemsEnabled(){
return false;
}
@Override
public boolean isEnabled(int position){
for (String s : actives){
if (s == Y)
return true;
else
return false;
}
return true;
}
}
/
***/
Now my Database has 8 records, which are to be displayed
I am not getting any error but the my output just contains the last
records displayed 8 times
what am i doing wrong??
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[android-developers] Re: Disabling records in a List View
never mind, solved it, cheers mate!
On Apr 18, 8:26 pm, Prathamesh Shetye prathamesh.she...@gmail.com
wrote:
Hi Mark, Here's what I did
My Existing Class extending ListActivity
/
***
/
public class LifeProducts extends ListActivity {
private static ListString products;
private static ListString actives;
private DataHelper dh;
private ListMyProducts ips;
public void onCreate(Bundle savedInstanceState) {
dh = new DataHelper(this);
ips = dh.GetMyProducts();
products = new ArrayListString();
actives = new ArrayListString();
for(MyProducts ip : ips){
products.add(ip.name);
if (ip.active == 0)
actives.add(N);
else
actives.add(Y);
}
super.onCreate(savedInstanceState);
ProductAdapterString pas = new ProductAdapterString(this,
R.layout.life_products, products);
pas.setActiveList(actives);
setListAdapter(pas);
ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(
new OnItemClickListener() {
@Override
public void onItemClick(AdapterView? arg0,
View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), ((TextView)
arg1).getText(),
Toast.LENGTH_SHORT).show();
}
}
);
}
}
and here's how i overloaded the ArrayAdapter
/
***
/
@SuppressWarnings({ unchecked, hiding })
public class ProductAdapterString extends ArrayAdapter{
public ProductAdapter(Context context, int textViewResourceId, List
objects) {
super(context, textViewResourceId, objects);
// TODO Auto-generated constructor stub
}
public ListString actives;
public void setActiveList(ListString act){
actives = act;
}
@Override
public boolean areAllItemsEnabled(){
return false;
}
@Override
public boolean isEnabled(int position){
for (String s : actives){
if (s == Y)
return true;
else
return false;
}
return true;
}}
/
***
/
Now my Database has 8 records, which are to be displayed
I am not getting any error but the my output just contains the last
records displayed 8 times
what am i doing wrong??
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[android-developers] Re: About how to make new buttons in a row?
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