u010448932的博客

http://www.baiheee.com/Documents/090522/090522165226.htm https://www.cnblogs.com/ljf181275034/articles/2942700.html

打开可视化界面 选中项目，依次展开“src/main/res/layout"，双击"activity_main.xml"，这样右侧就有“preview”选项卡了，点击activity_main.xml下端的“Design”、“Text”可切换。 ...

HI3519sudo dpkg-reconfigure dash  选择nosudo apt-get install ncurses-dev build-essential u-boot-tools libusb-1.0-0 libusb-1.0-0-dev git wget fakeroot kernel-package zlib1g-dev libncurses5-dev cvs automa...