我有PSD,分辨率是1080X1920,它包含一个分辨率为22X22的Dot图像.
我已裁剪该图像并将其放入我的res文件夹中.
我的问题是Android如何知道该图像适用于1080X1920屏幕.它会在小屏幕上打开相同的图像,在2560×1440分辨率下打开更小的图像.
有没有办法,除了为每个屏幕尺寸放置不同的图像,告诉Android使用图像的特定屏幕尺寸和其他屏幕的比例
解决方法
直接使用
https://romannurik.github.io/AndroidAssetStudio/
For example,two devices that both report a screen size of normal
might have actual screen sizes and aspect ratios that are slightly
different when measured by hand. Similarly,two devices that report a
screen density of hdpi might have real pixel densities that are
slightly different. Android makes these differences abstract to
applications,so you can provide UI designed for the generalized sizes
and densities and let the system handle any final adjustments as
necessary
屏幕密度的变化.
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
制作此布局文件,以使其对所有设备都相同.
根据设备提供填充,边距,字体和所有属性.
res/layout/main_activity.xml # For handsets (smaller than 600dp available width) res/layout-sw600dp/main_activity.xml # For 7” tablets (600dp wide and bigger) res/layout-sw720dp/main_activity.xml # For 10” tablets (720dp wide and bigger)
对于布局,
res/layout/my_layout.xml // layout for normal screen size ("default")
res/layout-large/my_layout.xml // layout for large screen size
res/layout-xlarge/my_layout.xml // layout for extra-large screen size
res/layout-xlarge-land/my_layout.xml // layout for extra-large in landscape orientation
对于图像
res/drawable-mdpi/graphic.png // bitmap for medium-density res/drawable-hdpi/graphic.png // bitmap for high-density res/drawable-xhdpi/graphic.png // bitmap for extra-high-density res/drawable-xxhdpi/graphic.png // bitmap for extra-extra-high-density
对于图标
res/mipmap-mdpi/my_icon.png // launcher icon for medium-density res/mipmap-hdpi/my_icon.png // launcher icon for high-density res/mipmap-xhdpi/my_icon.png // launcher icon for extra-high-density res/mipmap-xxhdpi/my_icon.png // launcher icon for extra-extra-high-density res/mipmap-xxxhdpi/my_icon.png // launcher icon for extra-extra-extra-high-density
对于Launcher图标
36x36 (0.75x) for low-density 48x48 (1.0x baseline) for medium-density 72x72 (1.5x) for high-density 96x96 (2.0x) for extra-high-density 180x180 (3.0x) for extra-extra-high-density 192x192 (4.0x) for extra-extra-extra-high-density (launcher icon only; see note above)
