Hi Dianne, I have never been able to successfully make MATCH_PARENT work. It seems to work for making the width (but not the height) of a floating Activity match the screen size, but I was never able to do the same for an AlertDialog.
Here's an AlertDialog from my app using MATCH_PARENT for the AlertDialog's content view. No views inside have a specific size set: http://picasaweb.google.com/zvasvari/ScreenWidth#5554064956779202578 As you can see, it's way too narrow for the screen and, of course, it's even worse in landscape mode. Now here's the same dialog if I give it a minWidth of 300dp, nicely filling the screen. This is on a Nexus One (480x800): http://picasaweb.google.com/zvasvari/ScreenWidth#5554064961041980722 I've tried many-a-times in vain to make an AlertDialog expend to the screen size, but so far, I've been unsuccessful without giving it a minWidth. Zsolt On Dec 23, 3:44 pm, Dianne Hackborn <[email protected]> wrote: > This is 500dp in the tall dimension? The two screens have different aspect > ratios, so the tall/wide dimensions are different. The scaling factor > between mdpi (160) and hdpi (240) is 1.5. 800 / 1.5 == 533. 480 * 1.5 == > 720. > > (And of course those aren't the only aspect ratios. QVGA is even shorter > (that is why it is a small screen), while some devices like droid are taller > at 480 x 852.) > > If you want to fill the screen, the easiest way to do this is to just make > your window's layout in that dimension be MATCH_PARENT. If you aren't using > MATCH_PARENT, your layout should be computing the size it needs based on its > content and using that, not trying to impose numbers to match the screen. > > (There is another level of complexity here when moving to significantly > larger screens. The phone screens are relatively simple, in that just > allowing the dialog fill the available width if it could at all use it ends > up working well. On an xlarge screen, though, that looks ridiculous. > Honeycomb should have some help for this problem...) > > > > > > On Wed, Dec 22, 2010 at 11:33 PM, Zsolt Vasvari <[email protected]> wrote: > > Thanks, Dianne. I am now just retrieving an int from 0 - 100 and > > divide it by 100 and set it as the weight. It works fine, but it's > > just extra code and I am lazy person, which is why I asked. :) > > > On a related question: > > > I am defining the width of my pop-up window as 500dp, this fits nicely > > into my HDPI screen on my Nexus One (480x800), but the same 500dp on > > an MDPI device (320x480) is wider than the screen and I need to set > > the width to 460dp. I would have thought using DIP as the unit of > > measure would deal with this. > > > Thanks, > > Tom > > > On Dec 23, 9:41 am, Dianne Hackborn <[email protected]> wrote: > > > Oh also you can just do a percentage dimension ("50%") and retrieve it > > with > > > a base value of 1 or 100 as desired. > > > > On Wed, Dec 22, 2010 at 5:40 PM, Dianne Hackborn <[email protected] > > >wrote: > > > > > You can use them as attributes, but unfortunately right now there is no > > way > > > > to get them as direct resources. > > > > > Well you can probably do it by being tricky -- use <item> to define a > > raw > > > > resource, and Resources.getValue() to retrieve its value. > > > > > (One reason why this doesn't exist is if it made entries in R. for > > float > > > > values it would create code that can't compile since "float" is a > > keyboard. > > > > :p I solved that with ints by calling them integers, and booleans by > > > > calling them bools, but we never really needed floats so I never tried > > to > > > > come up with something to call them.) > > > > > On Wed, Dec 22, 2010 at 5:04 PM, Zsolt Vasvari <[email protected]> > > wrote: > > > > >> Am I missing something or there is no mechanism to define a float > > > >> value as a resource? > > > > >> I am trying to have a locale dependent weight added to some of my > > > >> buttons. Right now, as a workaround, I am defining the weight as an > > > >> Integer and then divide and manualy set it. But why would there be > > > >> such a seemingly arbitrary decision made as not to allow floats but > > > >> allow ints? > > > > >> -- > > > >> You received this message because you are subscribed to the Google > > > >> Groups "Android Developers" group. > > > >> To post to this group, send email to > > [email protected] > > > >> To unsubscribe from this group, send email to > > > >> [email protected]<android-developers%2bunsubs[email protected]> > > <android-developers%2bunsubs[email protected]> > > > >> For more options, visit this group at > > > >>http://groups.google.com/group/android-developers?hl=en > > > > > -- > > > > Dianne Hackborn > > > > Android framework engineer > > > > [email protected] > > > > > Note: please don't send private questions to me, as I don't have time > > to > > > > provide private support, and so won't reply to such e-mails. All such > > > > questions should be posted on public forums, where I and others can see > > and > > > > answer them. > > > > -- > > > Dianne Hackborn > > > Android framework engineer > > > [email protected] > > > > Note: please don't send private questions to me, as I don't have time to > > > provide private support, and so won't reply to such e-mails. All such > > > questions should be posted on public forums, where I and others can see > > and > > > answer them.- 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 [email protected] > > To unsubscribe from this group, send email to > > [email protected]<android-developers%2bunsubs[email protected]> > > For more options, visit this group at > >http://groups.google.com/group/android-developers?hl=en > > -- > Dianne Hackborn > Android framework engineer > [email protected] > > Note: please don't send private questions to me, as I don't have time to > provide private support, and so won't reply to such e-mails. All such > questions should be posted on public forums, where I and others can see and > answer them.- 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 [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
