自定义图标

tool/generate_icon2.ps1

@@ -0,0 +1,29 @@
+$source = 'd:\UserData\Desktop\my_proj\mooknote\assets\icon\app_icon2.png'
+$sizes = @{
+    'mipmap-mdpi' = 48
+    'mipmap-hdpi' = 72
+    'mipmap-xhdpi' = 96
+    'mipmap-xxhdpi' = 144
+    'mipmap-xxxhdpi' = 192
+}
+
+Add-Type -AssemblyName System.Drawing
+$original = [System.Drawing.Image]::FromFile($source)
+
+foreach ($dir in $sizes.Keys) {
+    $size = $sizes[$dir]
+    $bitmap = New-Object System.Drawing.Bitmap($size, $size)
+    $graphics = [System.Drawing.Graphics]::FromImage($bitmap)
+    $graphics.InterpolationMode = [System.Drawing.Drawing2D.InterpolationMode]::HighQualityBicubic
+    $graphics.DrawImage($original, 0, 0, $size, $size)
+    $graphics.Dispose()
+    
+    $output = "d:\UserData\Desktop\my_proj\mooknote\android\app\src\main\res\$dir\ic_launcher2.png"
+    $bitmap.Save($output, [System.Drawing.Imaging.ImageFormat]::Png)
+    $bitmap.Dispose()
+    
+    Write-Host "Generated $output (${size}x${size})"
+}
+
+$original.Dispose()
+Write-Host "Done!"