iOS App asset catalogs gen

app-icon-gen.php

<?php

if (!isset($argv[1])) {
	echo '[!] Need image path', PHP_EOL;
	echo $argv[0], ' [imagepath]', PHP_EOL;
	
	exit(1);
}

$image = realpath($argv[1]);
if (!file_exists($image)) {
	echo '[!] Image not exists', PHP_EOL;
}

$output_dir = dirname($image) . DIRECTORY_SEPARATOR . 'out';
$image_name = basename($image);

echo 'Making dir ', $output_dir, ' ...';
if (is_dir($output_dir)) {
	echo 'Already Exists!', PHP_EOL;
} else {
	mkdir($output_dir);
	echo 'Done', PHP_EOL;
}

// iOS
echo 'iOS', PHP_EOL;

$image_dir = $output_dir . DIRECTORY_SEPARATOR . 'AppIcon.appiconset';
echo 'Making dir ', $image_dir, ' ...';
if (is_dir($image_dir)) {
	echo 'Already Exists!', PHP_EOL;
} else {
	mkdir($image_dir);
	echo 'Done', PHP_EOL;
}

$image_dir .= DIRECTORY_SEPARATOR;

echo 'Copy Contents.json...';
copy('./appicon.json', $image_dir . 'Contents.json');
echo 'Done', PHP_EOL;

echo 'Resizing image...', PHP_EOL;
$image_data = imagecreatefrompng($image);

$appicon_settings = file_get_contents('./appicon.json');
$appicon_settings = str_replace("\n", '', $appicon_settings);
$sizes = json_decode($appicon_settings, true);

foreach ($sizes['images'] as $image_setting) {
	echo '  ', join('  ', $image_setting), '  ';
	
	$size = $image_setting['size'];
	$scale = (int)$image_setting['scale'];
	$filename = $image_setting['filename'];
	
	list($width, $height) = explode('x', $size);
	$width *= $scale;
	$height *= $scale;
	
	$new_file = imagecreatetruecolor($width, $height);
	imagealphablending($new_file, false);
	imagesavealpha($new_file, true);
	
	$transparent = imagecolorallocatealpha($new_file, 255, 255, 255, 127);
	imagefilledrectangle($new_file, 0, 0, $width, $height, $transparent);
	
	imagecopyresampled($new_file, $image_data, 0, 0, 0, 0, $width, $height, 1024, 1024);
	
	imagepng($new_file, $image_dir . $filename);
	echo 'Done', PHP_EOL;
}

// Android
echo 'Android', PHP_EOL;

$image_dir = $output_dir . DIRECTORY_SEPARATOR . 'res';
echo 'Making dir ', $image_dir, ' ...';
if (is_dir($image_dir)) {
	echo 'Already Exists!', PHP_EOL;
} else {
	mkdir($image_dir);
	echo 'Done', PHP_EOL;
}

$image_dir .= DIRECTORY_SEPARATOR;

$android_image_sizes = array(
	72 => 'drawable-hdpi',
	48 => 'drawable-mdpi',
	96 => 'drawable-xhdpi',
	144 => 'drawable-xxhdpi'
);

foreach ($android_image_sizes as $size => $folder_name) {
	echo '  ', $size, '  ', $folder_name, '  ';
	
	$folder_path = $image_dir . $folder_name;
	if (!is_dir($folder_path)) mkdir($folder_path);
	
	$new_file = imagecreatetruecolor($size, $size);
	imagealphablending($new_file, false);
	imagesavealpha($new_file, true);
	
	$transparent = imagecolorallocatealpha($new_file, 255, 255, 255, 127);
	imagefilledrectangle($new_file, 0, 0, $size, $size, $transparent);
	
	imagecopyresampled($new_file, $image_data, 0, 0, 0, 0, $size, $size, 1024, 1024);
	
	imagepng($new_file, $folder_path . DIRECTORY_SEPARATOR . 'ic_launcher.png');
	echo 'Done', PHP_EOL;
}

echo 'All Done', PHP_EOL;
exit(0);

appicon.json

{
  "images" : [
    {
      "idiom" : "iphone",
      "size" : "29x29",
      "scale" : "1x",
      "filename" : "Icon-29.png"
    },
    {
      "idiom" : "iphone",
      "size" : "29x29",
      "scale" : "2x",
      "filename" : "Icon-29@2x.png"
    },
    {
      "idiom" : "iphone",
      "size" : "29x29",
      "scale" : "3x",
      "filename" : "Icon-29@3x.png"
    },
    {
      "idiom" : "iphone",
      "size" : "40x40",
      "scale" : "2x",
      "filename" : "Icon-40@2x.png"
    },
    {
      "idiom" : "iphone",
      "size" : "40x40",
      "scale" : "3x",
      "filename" : "Icon-40@3x.png"
    },
    {
      "idiom" : "iphone",
      "size" : "57x57",
      "scale" : "1x",
      "filename" : "Icon-57.png"
    },
    {
      "idiom" : "iphone",
      "size" : "57x57",
      "scale" : "2x",
      "filename" : "Icon-57@2x.png"
    },
    {
      "idiom" : "iphone",
      "size" : "60x60",
      "scale" : "2x",
      "filename" : "Icon-60@2x.png"
    },
    {
      "idiom" : "iphone",
      "size" : "60x60",
      "scale" : "3x",
      "filename" : "Icon-60@3x.png"
    },
    {
      "idiom" : "ipad",
      "size" : "29x29",
      "scale" : "1x",
      "filename" : "Icon-29.png"
    },
    {
      "idiom" : "ipad",
      "size" : "29x29",
      "scale" : "2x",
      "filename" : "Icon-29@2x.png"
    },
    {
      "idiom" : "ipad",
      "size" : "40x40",
      "scale" : "1x",
      "filename" : "Icon-40.png"
    },
    {
      "idiom" : "ipad",
      "size" : "40x40",
      "scale" : "2x",
      "filename" : "Icon-40@2x.png"
    },
    {
      "idiom" : "ipad",
      "size" : "50x50",
      "scale" : "1x",
      "filename" : "Icon-50.png"
    },
    {
      "idiom" : "ipad",
      "size" : "50x50",
      "scale" : "2x",
      "filename" : "Icon-50@2x.png"
    },
    {
      "idiom" : "ipad",
      "size" : "72x72",
      "scale" : "1x",
      "filename" : "Icon-72.png"
    },
    {
      "idiom" : "ipad",
      "size" : "72x72",
      "scale" : "2x",
      "filename" : "Icon-72@2x.png"
    },
    {
      "idiom" : "ipad",
      "size" : "76x76",
      "scale" : "1x",
      "filename" : "Icon-76.png"
    },
    {
      "idiom" : "ipad",
      "size" : "76x76",
      "scale" : "2x",
      "filename" : "Icon-76@2x.png"
    }
  ],
  "info" : {
    "version" : 1,
    "author" : "xcode"
  },
  "properties" : {
    "pre-rendered" : true
  }
}