android:所有屏幕设备的图像尺寸

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

您必须创建不同的dimen，layout，图像和图标文件以支持所有设备。

changes in screen density.

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

Make this layout files, so that it will be same for all devices

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)

For Layout ，

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

For Images

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

For Icon

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

For Launcher icon

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)

结帐尺寸和 支持多屏官方文档。

Android Studio在您的Android Studio中安装了一个名为"批处理可绘制"的插件.这有助于创建不同大小的图像。

导入步骤： 文件->设置->插件->浏览存储库->单击安装按钮。

重新启动Android Studio，然后您将可以在Android Studio的文件菜单中找到"批处理可绘制"。

链接：https://github.com/winterDroid/android-drawable-importer-intellij-plugin

将大型图像放入可绘制文件夹.

您无需做其他任何事情，只需将不同分辨率的文件放入不同的drawable-xxx文件即可.请记住，所有图片都必须具有相同的名称，但是Android不会自动匹配每个图片的屏幕尺寸，因为文件名不匹配.祝你好运！