Mosaic

1、前进和后退相应的步数
2、马赛克是张笔触图片，根据滑动时触控的颜色更改笔触的颜色，根据手指滑动的方向绘制
3、绘画的图片做过压缩，最后保存的图片没有压缩

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Name		Name	Last commit message	Last commit date
Latest commit History 29 Commits
app		app
gradle/wrapper		gradle/wrapper
imgs		imgs
.gitignore		.gitignore
README.md		README.md
build.gradle		build.gradle
gradle.properties		gradle.properties
gradlew		gradlew
gradlew.bat		gradlew.bat
settings.gradle		settings.gradle

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