I am a bit confused on creating an image which will be acting as a background for my activities. So, in short, my aim is that my application should be able to fit the different screen sizes. Therefore, what size in pixel should my three images be to be able to fill the screen of the device in ldpi, mdpi and hdpi?
Thank you for any response.
In ldpi-folder, the recommended size is 240x320.
In mdpi-folder, the recommended size is 320x480.
In hdpi-folder, the recommended size is 480x800.
More information about this subject can be found here.
ldpi 240x320.
mdpi 320x480.
hdpi 480x800.
xhdpi 640*960.
xxhdpi 960x1440.
updated Jan,09,2016
ldpi mdpi hdpi xhdpi xxhdpi xxxhdpi
Launcher And Home 36*36 48*48 72*72 96*96 144*144 192*192
Action Bar And Tab 24*24 32*32 48*48 64*64 96*96 128*128
Notification 18*18 24*24 36*36 48*48 72*72 96*96
Background 240*320 320*480 480*800 768*1280 1080 *1920 1440*2560
updated Sep,23,2016
@CDrosos thanks.
This is helpful also: Device Metrics - design.google.com/devices
04 / 2013 : I have read another specifications in android developers
xlarge screens are at least 960dp x 720dp large screens are at least 640dp x 480dp normal screens are at least 470dp x 320dp small screens are at least 426dp x 320dp
http://developer.android.com/guide/practices/screens_support.html
来源：https://stackoverflow.com/questions/3694830/android-activity-image-background-size