ohhhh i see, my mistake 
. thankyou so much for fixing it, i appreciate it so much! thankyou!
Thanks for sharing the aia file so I just need to move the break block right under the set block to fix the app. 
is there any way to make it using an image instead of color? Im a bit of a beginner myself, so I'm not sure if it's possible or not
you can following this tutorial first to understand how it works. then you can change it to imagesprite version.
the link doesn't work for me?
It's working from my side.
Uploading: Screenshot 2024-12-18 170852.png…
這是沒修改的
我想请问一下 App Inventor开发探底--俄罗斯方块开发笔记金从军 第15章 完善游戏功能 · 俄罗斯方块开发笔记网址里说得绘製预报组块怎麽编程,还是版本更新以前的设计已经不能了,虽然前面十章都还可以,预报组块显示不出图片我不太懂怎麽修改通过对画块过程的调用
你说的跟我这个不是一个教程啊。如果你会开发前面14章的功能，这个应该不难。不过是在一个新的画布上划线而已。