AndroidTaco
Lurker
Hey everyone, I'm new to the forum but have a big question that I need some serious help with 
I know there are tons of questions on this topic, but I can't really find a direct answer to this topic that's a little easier to understand (I'm not super good at Android yet
).
If I want to create a button (or any image resource) that will take up the same space on the screen on all devices - how do I do that?
I understand that there are specific screen sizes and dpi's that Android looks at etc. but I don't quite understand how big a specific image should be to look right on any screen.
Say that I have the following setup for my drawable and layout folders (Application is only landscape):
res/drawable-ldpi/button.png (120 dpi)
res/drawable-mdpi/button.png (160 dpi)
res/drawable-hdpi/button.png (240 dpi)
res/layout-small/main.xml - button is set to 100dp
res/layout-normal/main.xml - button is set to 100dp
res/layout-large/main.xml - button is set to 100dp
Say I have a button that I want to be 100dp on any screen. Following the 3:4:6 scale ratio rule it seems that if I have a button resource that's 100px wide for the mdpi density I should make another button for the ldpi density that's 75px, and one for the hdpi density that's 150px. Is that correct? Do I create the 75px button at 120dpi, the 100px button at 160dpi and the 150px button at 240dpi and then just say android:layout_width="100dp" in all three layout files? Or do I make all three buttons 100px at the different dpi's?
Now what if I have that button 9 patched. Do I have to create the button three times at 120dpi, 160dpi and 240dpi all of which are 100px in size? Or do I just create one 9 patched button at 100px and 160dpi and place it in the mdpi drawable folder?
The online documentation is a bit confusing for me so I'm looking for a simplified answer.
This is for Android versions 1.6+ (Not the new stuff for 3.2 etc)
Thanks for your help ... I just want a button to take up the same space on a 3.7" screen as a 7" screen and not be blurry!
I know there are tons of questions on this topic, but I can't really find a direct answer to this topic that's a little easier to understand (I'm not super good at Android yet
).If I want to create a button (or any image resource) that will take up the same space on the screen on all devices - how do I do that?
I understand that there are specific screen sizes and dpi's that Android looks at etc. but I don't quite understand how big a specific image should be to look right on any screen.
Say that I have the following setup for my drawable and layout folders (Application is only landscape):
res/drawable-ldpi/button.png (120 dpi)
res/drawable-mdpi/button.png (160 dpi)
res/drawable-hdpi/button.png (240 dpi)
res/layout-small/main.xml - button is set to 100dp
res/layout-normal/main.xml - button is set to 100dp
res/layout-large/main.xml - button is set to 100dp
Say I have a button that I want to be 100dp on any screen. Following the 3:4:6 scale ratio rule it seems that if I have a button resource that's 100px wide for the mdpi density I should make another button for the ldpi density that's 75px, and one for the hdpi density that's 150px. Is that correct? Do I create the 75px button at 120dpi, the 100px button at 160dpi and the 150px button at 240dpi and then just say android:layout_width="100dp" in all three layout files? Or do I make all three buttons 100px at the different dpi's?
Now what if I have that button 9 patched. Do I have to create the button three times at 120dpi, 160dpi and 240dpi all of which are 100px in size? Or do I just create one 9 patched button at 100px and 160dpi and place it in the mdpi drawable folder?
The online documentation is a bit confusing for me so I'm looking for a simplified answer.
This is for Android versions 1.6+ (Not the new stuff for 3.2 etc)
Thanks for your help ... I just want a button to take up the same space on a 3.7" screen as a 7" screen and not be blurry!