Develop Reference

setOnItemClickListener not updating with notifyDataSetChanged

I'm using notifyDataSetChanged with my custom GridViewAdapter which updates the listView however when I click on something with my updated listView, the old links are still there. I have the following ClickListener in my onCreate method.
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent intent = new Intent(getBaseContext(), SpiceList.class);
intent.putExtra("INGREDIENTS_CALL", true);
intent.putExtra("INGREDIENTS_SELECTED", position + 1);
if (recipeCall) {
intent.putExtra("RECIPE_CALL", true);
}
startActivity(intent);
}
});
I've tried duplicating this inside the buttons that update the listView but this does not work. Any ideas for how I can best update my listener to reflect my changed listView?
Thanks! :)

Not sure if i understand your question but let me see if i can try. You are changing the listviews views when you click on one?
Are you deleting any element in the array or List you are using for your adapter? So you remove an item and then call notifyDataSetChange()? or you add an item to the array and call the notify method?

Turns out the problem was in the way I was retrieving my SQL queries. I was making the position of my listener equal to the ID of the SQL entry I was retrieving. Therefore, even though my list changed, item 1 was still pulling SQL items with an ID of 1.
When I designed my queries in Android, I originally did not expect that I would run into this problem. However, now I've linked my SQL queries to the actual item ID and not the listener position. My new listener is now:
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent intent = new Intent(getBaseContext(), SpiceList.class);
intent.putExtra("INGREDIENTS_CALL", true);
intent.putExtra("INGREDIENTS_SELECTED", Integer.parseInt(resultsID.get(position)));
if (recipeCall) {
intent.putExtra("RECIPE_CALL", true);
}
startActivity(intent);
}
});
Thanks for your help!

Get all ListView items?

I want to get all the items in a list view that way when each one is clicked they will open the second activity?
Here I can get a specific list view item and use an if statement to say if this is clicked open/launch the second activity but I want to be able to say if any list view item is clicked open/launch the second activity how do I do that I know it sounds simple??
public void onItemClick(AdapterView<?> listView, View itemView, int itemPosition, long itemId)
{
Intent intent = new Intent(getApplicationContext(), SecondActivity.class);
startActivity(intent);
}
});
when I remove the if statement it keeps crashing logcat states:"RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list" am using :android:id="#android:id/list" my activity also extends ListActivity? I dont't get it

If I understand your question:
but I want to be able to say if any list view item is clicked open/launch the second activity how do I do that I know it sounds simple??
Just remove the if block like this:
public void onItemClick(AdapterView<?> listView, View itemView, int itemPosition, long itemId)
{
Intent intent = new Intent(getApplicationContext(), SecondActivity.class);
startActivity(intent);
}
});
And your second activity will be opened on any item click.
Hope this helps...

How to create clickable listview in Android using Sqlite3?

I have created listview in Android to show my records. And records are shown as well. Now I want to click on particular record from that listview to show/view particular record. And that record must show another layout for that profile. How to achieve it?

Create a onItemClick() event for the listview. Then, when you click on an item, a new intent will be created that will start a child activity that will display the particular record.
listView1.setOnItemClickListener(new ListView.OnItemClickListener()
{
public void onItemClick(AdapterView<?> listView, View itemView, int itemPosition, long itemId)
{
Intent launchActivity = new Intent(MyActivity.this, OtherActivity.class);
startActivity(launchActivity);
}
});

Android: Clicking children individually within a GridView

This is in the initial Activity when my app starts up. The gridview contains six click able icons that i want to all go to different activities. I have aboslutely no problem starting up a new activity for another thing to do in my app. I created one activity just to work with initially, a 'contact us' form. I want only one of these icons to go to that activity, however i can't find a way to make it so the onItemClickListener callback registers individual clicks for each icon and launches the appropriate activity; currently, no matter which icon i click, they all go to the same activity. See below for my code:
GridView gridview = (GridView) findViewById(R.id.gridview);
gridview.setAdapter(new ImageAdapter(this));
gridview.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View v, int position, long id)
{
Intent myIntent = new Intent();
myIntent.setClassName("com.beneast.main", "com.beneast.main.ContactUs");
startActivity(myIntent);
};
});
I am a bit of a noob at doing this as you can plainly see, this app is getting developed as i learn more stuff. But thanks for any help.

You need to make use of the int position parameter in the onitemClick method. The position parameter is the position of the icon in the gridview which has been clicked. So i would use a switch-case statement for your need as follows:
gridview.setOnItemClickListener(new OnItemClickListener(){
public void onItemClick(AdapterView<?> parent, View v, int position, long id)
{
switch(position)
{
case 0:
Intent myIntent = new Intent();
myIntent.setClassName("com.beneast.main", "com.beneast.main.ContactUs");
startActivity(myIntent);
break;
case 1:
Intent myIntent = new Intent();
myIntent.setClassName(X, Y);
startActivity(myIntent);
break;
}
};
});
You would continue this to cover all possible cases i.e. all icon positions in the gridview.

android list view clickable problem

i have this customized list. each row contains an image and two lines of text one below the other. i want to open a new activity when any list item is clicked. but i am not able to do so, even after implementing the setOnItemClickListener(). please correct me if i am wrong. the below is the code for the list.
PS: This is an normal activity and not list activity.
l1.setAdapter(new EfficientAdapter(this,eventTitleArray,eventDateArray,eventImageLinkArray));
//l1 = getListView();
l1.setClickable(true);
l1.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1,
int position, long arg3) {
Intent intent = new Intent(MainActivity.this, DisplayActivity.class);
Bundle b = new Bundle();
b.putString("event", eventTitleArray[position]);
intent.putExtras(bundle);
startActivity(intent);
Toast.makeText(getApplicationContext(), "Opening detailed view for:"+eventTitleArray[position], Toast.LENGTH_SHORT).show();
}
});

Please have a look whether the row layout has any items which are focusable. If an ListView Item contains focusable children, the Listview Handler will not be fired.

I think there is a bug in the SDK that prevents the onItemClickListeners from firing when there are focusable views in the View of your items.
So you should try to do a setFocusable(false) on all the Views of your items.
The problem is described here