Re: [android-developers] Re: Fancy ListView help
The tag, setTag(), is just a generic object pointer for use by the program. Typically what would happen would be to instantiate an object that contains information about the button and place pointer to the object in the button view's tag field: button.setTag((Object)myObject); then whenever the callback is called you get the pointer to the object with something like MyObject myObject = (MyObject)view.getTag() Then the info you set whenever creating the buttonView is available again in te callback. Hope this helps! On Tue, Dec 29, 2009 at 10:19 AM, Abhi wrote: > Hi > > Your suggestion sounds good. But I haven't been able to figure out how > to use tags with buttons to determine the position. Would you be able > to give me an example? > > Thanks, > > Abhi > > On Dec 22, 10:30 am, WoodManEXP wrote: > > Although I use ListView a lot it has always been a little confusing to > > understand how it manages its views returned from BaseAdapter.getView > > (). > > > > If you know you have just the six list rows, which is not a lot, then > > every time BaseAdapter.getView() is called create the view hierarchy, > > with the button in each row, and return it. > > > > Of course for each button attach a listener with setOnClickListener > > and that listener will get called whenever the button is clicked/ > > touched. You can use the tag field of the button view to help you > > determine at click time which button has been clicked. > > > > Or you can instantiate a separate listener for each button and set > > something in the listener class to is the view clicked. > > > > Make the listener a private class under the containing Activity and it > > can easily get at all the state contained in the Activity. Or make the > > Activity an implementer of View.OnClickListener and just pass > > Activity.this to setOnClickListener. > > > > In all cases onClick(View v) will be called whenever the button is > > clicked/touched. > > > > Hope this helps… > > > > On Dec 22, 8:58 am,Abhi wrote: > > > > > > > > > Hi guys, > > > > > All I need is a listview with 6 items, each having an icon, textview > > > and a button/imageview. I want to be able to click the button/ > > > imageview to open up a new activity and each row opens up a different > > > activity. > > > > > Any suggestions? > > > > >Abhi > > > > > On Dec 21, 8:11 pm,Abhi wrote: > > > > > > Hi, > > > > > > I am using excerpts from this website - > http://www.androidguys.com/2008/07/14/fancy-listviews-part-one/ > > > > (under Dynamic) to build my own ListView with 6 list rows. I am doing > > > > the exact same thing, but with a button added to each row. I want to > > > > be able to listen to each button click and take action according to > > > > the position of the button pressed. > > > > > > I don't know how to use the onClick and Listener in the above case. > > > > Any help would be appreciated. I have posted this question a number > of > > > > times but haven't been able to receive a satisfactory reply. > > > > > > I see that the original post is from Mark Murphy who is an active > > > > member of this group. If I hear from him, nothing like it! > > > > > > Thanks, > > > > > > Abhishek- Hide quoted text - > > > > - Show quoted text - > > -- > 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 -- 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: Fancy ListView help
Hi Your suggestion sounds good. But I haven't been able to figure out how to use tags with buttons to determine the position. Would you be able to give me an example? Thanks, Abhi On Dec 22, 10:30 am, WoodManEXP wrote: > Although I use ListView a lot it has always been a little confusing to > understand how it manages its views returned from BaseAdapter.getView > (). > > If you know you have just the six list rows, which is not a lot, then > every time BaseAdapter.getView() is called create the view hierarchy, > with the button in each row, and return it. > > Of course for each button attach a listener with setOnClickListener > and that listener will get called whenever the button is clicked/ > touched. You can use the tag field of the button view to help you > determine at click time which button has been clicked. > > Or you can instantiate a separate listener for each button and set > something in the listener class to is the view clicked. > > Make the listener a private class under the containing Activity and it > can easily get at all the state contained in the Activity. Or make the > Activity an implementer of View.OnClickListener and just pass > Activity.this to setOnClickListener. > > In all cases onClick(View v) will be called whenever the button is > clicked/touched. > > Hope this helps… > > On Dec 22, 8:58 am,Abhi wrote: > > > > > Hi guys, > > > All I need is a listview with 6 items, each having an icon, textview > > and a button/imageview. I want to be able to click the button/ > > imageview to open up a new activity and each row opens up a different > > activity. > > > Any suggestions? > > >Abhi > > > On Dec 21, 8:11 pm,Abhi wrote: > > > > Hi, > > > > I am using excerpts from this website > > > -http://www.androidguys.com/2008/07/14/fancy-listviews-part-one/ > > > (under Dynamic) to build my own ListView with 6 list rows. I am doing > > > the exact same thing, but with a button added to each row. I want to > > > be able to listen to each button click and take action according to > > > the position of the button pressed. > > > > I don't know how to use the onClick and Listener in the above case. > > > Any help would be appreciated. I have posted this question a number of > > > times but haven't been able to receive a satisfactory reply. > > > > I see that the original post is from Mark Murphy who is an active > > > member of this group. If I hear from him, nothing like it! > > > > Thanks, > > > > Abhishek- Hide quoted text - > > - Show quoted text - -- 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: Fancy ListView help
Although I use ListView a lot it has always been a little confusing to understand how it manages its views returned from BaseAdapter.getView (). If you know you have just the six list rows, which is not a lot, then every time BaseAdapter.getView() is called create the view hierarchy, with the button in each row, and return it. Of course for each button attach a listener with setOnClickListener and that listener will get called whenever the button is clicked/ touched. You can use the tag field of the button view to help you determine at click time which button has been clicked. Or you can instantiate a separate listener for each button and set something in the listener class to is the view clicked. Make the listener a private class under the containing Activity and it can easily get at all the state contained in the Activity. Or make the Activity an implementer of View.OnClickListener and just pass Activity.this to setOnClickListener. In all cases onClick(View v) will be called whenever the button is clicked/touched. Hope this helps… On Dec 22, 8:58 am, Abhi wrote: > Hi guys, > > All I need is a listview with 6 items, each having an icon, textview > and a button/imageview. I want to be able to click the button/ > imageview to open up a new activity and each row opens up a different > activity. > > Any suggestions? > > Abhi > > On Dec 21, 8:11 pm, Abhi wrote: > > > Hi, > > > I am using excerpts from this website > > -http://www.androidguys.com/2008/07/14/fancy-listviews-part-one/ > > (under Dynamic) to build my own ListView with 6 list rows. I am doing > > the exact same thing, but with a button added to each row. I want to > > be able to listen to each button click and take action according to > > the position of the button pressed. > > > I don't know how to use the onClick and Listener in the above case. > > Any help would be appreciated. I have posted this question a number of > > times but haven't been able to receive a satisfactory reply. > > > I see that the original post is from Mark Murphy who is an active > > member of this group. If I hear from him, nothing like it! > > > Thanks, > > > Abhishek > > -- 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: Fancy ListView help
Hi guys, All I need is a listview with 6 items, each having an icon, textview and a button/imageview. I want to be able to click the button/ imageview to open up a new activity and each row opens up a different activity. Any suggestions? Abhi On Dec 21, 8:11 pm, Abhi wrote: > Hi, > > I am using excerpts from this website > -http://www.androidguys.com/2008/07/14/fancy-listviews-part-one/ > (under Dynamic) to build my own ListView with 6 list rows. I am doing > the exact same thing, but with a button added to each row. I want to > be able to listen to each button click and take action according to > the position of the button pressed. > > I don't know how to use the onClick and Listener in the above case. > Any help would be appreciated. I have posted this question a number of > times but haven't been able to receive a satisfactory reply. > > I see that the original post is from Mark Murphy who is an active > member of this group. If I hear from him, nothing like it! > > Thanks, > > Abhishek -- 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
