概述

之前用的一个批量导出APP图标和启动图的软件，今天发现收费了，于是自己造了个简单的轮子。

实现

Mac上的sips命令，可以很方便的帮助用户修改图片尺寸

Xcode里面的APP启动图资源包含两部分

图片资源

描述文件

所以这个脚本的功能就是两个

生成描述文件Contents.json

修改图片尺寸并关联描述文件

生成描述文件

使用echo简单粗暴的写入

setContents(){

echo { >> ./AppIcon/Contents.json

echo " \"images\"" : [>> ./AppIcon/Contents.json

echo " "{>> ./AppIcon/Contents.json

echo " \"size\"" : "\"20x20\"",>> ./AppIcon/Contents.json

echo " \"idiom\"" : "\"iphone\"",>> ./AppIcon/Contents.json

echo " \"scale\"" : "\"2x\"",>> ./AppIcon/Contents.json

echo " \"filename\"" : "\"icon_40x40.png\"">> ./AppIcon/Contents.json

echo " "},>> ./AppIcon/Contents.json

echo " "{>> ./AppIcon/Contents.json

echo " \"size\"" : "\"20x20\"",>> ./AppIcon/Contents.json

echo " \"idiom\"" : "\"iphone\"",>> ./AppIcon/Contents.json

echo " \"scale\"" : "\"3x\"",>> ./AppIcon/Contents.json

echo " \"filename\"" : "\"icon_60x60.png\"">> ./AppIcon/Contents.json

echo " "},>> ./AppIcon/Contents.json

echo " "{>> ./AppIcon/Contents.json

echo " \"size\"" : "\"29x29\"",>> ./AppIcon/Contents.json

echo " \"idiom\"" : "\"iphone\"",>> ./AppIcon/Contents.json

echo " \"scale\"" : "\"2x\"",>> ./AppIcon/Contents.json

echo " \"filename\"" : "\"icon_58x58.png\"">> ./AppIcon/Contents.json

echo " "},>> ./AppIcon/Contents.json

echo " "{>> ./AppIcon/Contents.json

echo " \"size\"" : "\"29x29\"",>> ./AppIcon/Contents.json

echo " \"idiom\"" : "\"iphone\"",>> ./AppIcon/Contents.json

echo " \"scale\"" : "\"3x\"",>> ./AppIcon/Contents.json

echo " \"filename\"" : "\"icon_87x87.png\"">> ./AppIcon/Contents.json

echo " "},>> ./AppIcon/Contents.json

echo " "{>> ./AppIcon/Contents.json

echo " \"size\"" : "\"40x40\"",>> ./AppIcon/Contents.json

echo " \"idiom\"" : "\"iphone\"",>> ./AppIcon/Contents.json

echo " \"scale\"" : "\"2x\"",>> ./AppIcon/Contents.json

echo " \"filename\"" : "\"icon_80x80.png\"">> ./AppIcon/Contents.json

echo " "},>> ./AppIcon/Contents.json

echo " "{>> ./AppIcon/Contents.json

echo " \"size\"" : "\"40x40\"",>> ./AppIcon/Contents.json

echo " \"idiom\"" : "\"iphone\"",>> ./AppIcon/Contents.json

echo " \"scale\"" : "\"3x\"",>> ./AppIcon/Contents.json

echo " \"filename\"" : "\"icon_120x120.png\"">> ./AppIcon/Contents.json

echo " "},>> ./AppIcon/Contents.json

echo " "{>> ./AppIcon/Contents.json

echo " \"size\"" : "\"60x60\"",>> ./AppIcon/Contents.json

echo " \"idiom\"" : "\"iphone\"",>> ./AppIcon/Contents.json

echo " \"scale\"" : "\"2x\"",>> ./AppIcon/Contents.json

echo " \"filename\"" : "\"icon_120x120.png\"">> ./AppIcon/Contents.json

echo " "},>> ./AppIcon/Contents.json

echo " "{>> ./AppIcon/Contents.json

echo " \"size\"" : "\"60x60\"",>> ./AppIcon/Contents.json

echo " \"idiom\"" : "\"iphone\"",>> ./AppIcon/Contents.json

echo " \"scale\"" : "\"3x\"",>> ./AppIcon/Contents.json

echo " \"filename\"" : "\"icon_180x180.png\"">> ./AppIcon/Contents.json

echo " "},>> ./AppIcon/Contents.json

echo " "{>> ./AppIcon/Contents.json

echo " \"size\"" : "\"1024x1024\"",>> ./AppIcon/Contents.json

echo " \"idiom\"" : "\"ios-marketing\"",>> ./AppIcon/Contents.json

echo " \"scale\"" : "\"1x\"",>> ./AppIcon/Contents.json

echo " \"filename\"" : "\"icon_1024x1024.png\"">> ./AppIcon/Contents.json

echo " "}>> ./AppIcon/Contents.json

echo " "],>> ./AppIcon/Contents.json

echo " \"info\"" : {>> ./AppIcon/Contents.json

echo " \"version\"" : 1,>> ./AppIcon/Contents.json

echo " \"author\"" : "\"xcode\"">> ./AppIcon/Contents.json

echo " "}>> ./AppIcon/Contents.json

echo }>> ./AppIcon/Contents.json

}

修改图片尺寸

iconWithSize() {

sips -Z $1 icon.png --out ./AppIcon/icon_$1x$1.png

}

函数调用

mkdir AppIcon

setContents

for size in 40 58 60 80 87 120 180 1024

do

iconWithSize $size

done

效果展示

怎么使用

AppIcon

下载对应的sh文件，放到你想导出图片的目录下，将你的原图命名为icon.png，然后在控制台中进入该目录，执行

sh AppIcon.sh

LaunchImage

下载对应的sh文件，放到你想导出图片的目录下，将你的原图命名为Default.png，然后在控制台中进入该目录，执行

sh AppLaunch.sh

就可以得到你要的资源啦。

扩展

在命令行使用sips命令修改图片尺寸

重新定义单个图片尺寸(忽略比例)

sips -z 768 1024 xxx.png

修改后图片尺寸为1024x768

重新定义单个图片尺寸(保留比例)

sips -Z 500 xxx.png

==保留图片比例，宽高不超过500。注意是大写的Z==。要想保留图片原始比例就得这样做，比如你有一张尺寸为750 x 1334的图片，执行完上面这条命令后，图片尺寸就变成了281x500

在一个目录里批量修改同一后缀格式的图片尺寸

sips -Z 300 *.png

只需要用*作为通配符来代替图片名就可以了

下载点我