OnClick Listner of images in Grid View Android - android

I have a Grid View that have 4 images .So i want to identify which image has been clicked so that corresponding to that i can start a new activity .
So please help me how can i get this
I have tried this
dataView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
}
});


getView can be used for this purpose.for this in getView find View and apply onClicklistner their.to make all views clickable you need to setFocusable(false) on all focusable views.


I have got the solution
dataView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View v, int arg2,
long arg3) {
// TODO Auto-generated method stub
Toast.makeText(
getApplicationContext(),
links[arg2], Toast.LENGTH_SHORT).show();
}
});


int arg2 in the OnItemClick method specifies the position.Using that you can get the item clicked.

Related

OnItemClickListener() - Android listview

I was developing a sample app in Android and came across below code, I am just wondering what part of Java,OOPS concept is used when this line is used , can any one please explain in detail this kind of declaration ? why its being declaraed like this
mainlistview.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
} });

This is called an Anonymous class, in this example used as part of an Observer Pattern.

OnItemClickListener is an interface.
The ListView will save the interface implementation you gave (your new OnItemClick...).
And when the ListView detects a user click on item it will call the callback you gave (your implementation) via mOnItemClickCallback.onItemClick(params...)

In addition to what "metter" has stated,
this
mainlistview.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
} });
can also be written as
mainlistview.setOnItemClickListener(this);
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
/// do the stuff for item click
}

Have a look at observer and command pattern. These pattern help you to understand the concept.

Adding an event listener to listView

getSherlockActivity().findViewById(android.R.id.list);
new OnItemClickListener() {
#Override
public void onItemClick(AdapterView <? > arg0, View arg1, int position,
long id) {
// TODO Auto-generated method stub
Toast.makeText(getSherlockActivity(),
"You selected :", Toast.LENGTH_SHORT).show();
}
};
I am trying to add an event listener to my activity, but the toast message is not shown at all. I am calling this piece of code from onCreateView method

It doesn't seem like you are actually setting the click listener on your list, you are just creating it, and not even keeping a reference to it.
try like this:
ListView lv = (ListView)(getSherlockActivity().findViewById(android.R.id.list));
lv.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView <? > arg0, View arg1, int position,
long id) {
// TODO Auto-generated method stub
Toast.makeText(getSherlockActivity(),
"You selected :", Toast.LENGTH_SHORT).show();
}
});

getSherlockActivity().findViewById(android.R.id.list).setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView <? > arg0, View arg1, int position,
long id) {
// TODO Auto-generated method stub
Toast.makeText(getSherlockActivity(),
"You selected :", Toast.LENGTH_SHORT).show();
}});
EDITED
((ListView)getSherlockActivity()).findViewById(android.R.id.list).setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView <? > arg0, View arg1, int position,
long id) {
// TODO Auto-generated method stub
Toast.makeText(getSherlockActivity(),
"You selected :", Toast.LENGTH_SHORT).show();
}});
Add this line inside onCreate().

I do not see you adding anything. All you did was findViewById() for no purpose (as you did not used return value. Also you just created new OnItemClickListener for no reason as you do not use it either. And no, putting two lines of code next to each other won't make then automagically interact in any way...
Right approach is:
ListView v = (ListView)getSherlockActivity().findViewById(android.R.id.list);
v.setOnItemClickListener( new OnItemClickListener() {
...
...

Couple of weeks ago, I found same situation. I didn't use Sherlock but, it may help to set following line.
listView.setItemsCanFocus(false);
Also make sure to set clickable false to any Button in your row item.

Only add
ListView lv = (ListView)getSherlockActivity().findViewById(android.R.id.list);
lv.setOnItemClickListener(this);
#Override
public void onItemClick(AdapterView <? > arg0, View arg1, int position,
long id) {
}
and Activity should implement OnItemClickListener
or
ListView lv = (ListView)getSherlockActivity().findViewById(android.R.id.list);
lv.setOnItemClickListener( new OnItemClickListener() {
#Override
public void onItemClick(AdapterView <? > arg0, View arg1, int position,
long id) {
}

Click to list item in CalendarView

I'm trying to click current day in my CalendarView like code below
((ListView) calendar.findViewById(android.R.id.list)).setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
System.err.println("click");
}
});
, but this way doesn't help me and I don't know why. How can I bind click listener to CalendarView?

CalendarView has a nested listener interface CalendarView.OnDateChangeListener with the method onSelectedDayChange(...). You can implement it with custom logic and set using Calendar.setOnDateChangeListener(...) method.

Not Getting Click Event On List View

here is my click listner...
mListView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
Log.i("", "adfadf");
Toast.makeText(ScoreListActivity.this, "Clicked",Toast.LENGTH_SHORT).show();
}
});
Whats wrong in this code ....\
I am not Getting Click when I click an item of LISTVIEW...

Call the following code on your list items as they are created:
listItem.setDescendantFocusability(FOCUS_BLOCK_DESCENDANTS);

create Listview without using listactivity.only use activty

I know how can implement listview without using listactivity.But i dont know how get the clicked item from the listview.Please anyone tell me how listen the clicked item from the listview without using listactivity.

Please Follow this Link. Here you can find simple Listview example using Activity.
Using listview.setOnItemClickListener you can get Click on Listview.
listView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View view, int position,
long id)
{
}

You can implements OnItemClickListener and can write the method like below or just simply use eclipse to implement unimplemented method
public void onItemClick(AdapterView<?> arg0, View view, int position,
long id) {
}

First you have to make instance of list view Clickable like
lv.setClickable(true);
then
use following
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View view, int position,
long id)
{
}

use ListView.
Then with the listview object invoke
lv.setOnItemClickListener(new OnItemClickListener(){
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
//do your stuff
}
}

for click on listview in activiyt try this code...
ListView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
//write you action here
}
});

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