Add cache , swipe back

• 增加缓存功能
• 增加滑动返回

Bug fixes

修复按钮被遮挡的bug，增加页面色彩

Add night mode and change views

Fully support night mode

add no images mode and partily night mode

add no images mode and partily night mode , improve the logic of handle net error.

fix some bugs and add scrollbar in detail activity

fix some bugs and add scrollbar in detail activity

First release version

add some feature