安卓工作室 : “libpng warning: iCCP: Not recognizing known sRGB profile that has been edited”

Question

我从 :

升级了 gradle

dependencies {
        classpath 'com.android.tools.build:gradle:1.3.1'
    }

到:

dependencies {
        classpath 'com.android.tools.build:gradle:1.4.0-beta3'
    }

但我收到错误:

AAPT err(Facade for 1057495093): E:\android_studio_workspace\P2JN\p2jn\src\main\res\drawable-mdpi\reload_data.png: libpng warning: iCCP: Not recognizing known sRGB profile that has been edited
AAPT err(Facade for 1057495093): E:\android_studio_workspace\P2JN\p2jn\src\main\res\drawable\teamwork.png: libpng warning: iCCP: Not recognizing known sRGB profile that has been edited
AAPT err(Facade for 2049818754): E:\android_studio_workspace\P2JN\p2jn\src\main\res\drawable-hdpi\ic_action_update.png: libpng warning: iCCP: Not recognizing known sRGB profile that has been edited
AAPT err(Facade for 2049818754): E:\android_studio_workspace\P2JN\p2jn\src\main\res\drawable-ldpi\reload_data.png: libpng warning: iCCP: Not recognizing known sRGB profile that has been edited
AAPT err(Facade for 2049818754): E:\android_studio_workspace\P2JN\p2jn\src\main\res\drawable\get_started.png: libpng warning: iCCP: Not recognizing known sRGB profile that has been edited

编辑 我的 gradle 项目上的 buildToolsVersion:

buildToolsVersion "23.0.1"

那么如何解决呢？

Answer 1

这是一个警告，你的 png 图像有一些无效的元数据。 最简单有效的解决方案是使用 pngcrush 优化您的 png 图像。和 optipng公用事业。

运行

pngcrush -ow -rem allb -brute -reduce image.png

和

optipng -o7 image.png

在每个导致错误的图像上。

在 macOS 和 Linux 上，您可以使用 bash 脚本查找当前目录及其所有子目录中的所有 png 图像并优化它们:

#!/bin/sh

for i in `find . -name "*.png"`; do
    pngcrush -ow -rem allb -brute -reduce $i
    optipng -o7 $i
done

对于 Windows，将以下内容保存到批处理文件并运行:

@echo off
set /p UserInputPath= What Directory would you like?
cd %UserInputPath%
for /r %%i in (*.png) do ( pngcrush -ow -rem allb -brute -reduce "%%i" & optipng -o7 "%%i" )

要在 macOS 上安装 pngcrush 和 optipng 使用 Homebrew包管理器:

brew install pngcrush optipng