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Android - How To Override the “Back” button so it doesn't Finish() my Activity?
... This solution won't bring the activity back when you re-launch the app from the home screen (if there is another activity on the task stack).
– IgorGanapolsky
Aug 24 '17 at 17:09
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rails - Devise - Handling - devise_error_messages
...tation. I'll let you know how it goes.
Update
Yep, that works. I created app/helpers/devise_helper.rb and overrode it like so:
module DeviseHelper
def devise_error_messages!
'KABOOM!'
end
end
So knowing this, I can modify the method to display error messages the way I want it to.
To he...
How to deal with INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES without uninstall?
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It means the new copy of your application (on your development machine) was signed with a different signing key than the old copy of your application (installed on the device/emulator). For example, if this is a device, you might have put the old copy on ...
Android - Using Custom Font
I applied a custom font to a TextView , but it doesn't seems to change the typeface.
21 Answers
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Runtime vs. Compile time
...specially for people without much background in programming languages. To approach this problem, I find it helpful to ask
What invariants does the program satisfy?
What can go wrong in this phase?
If the phase succeeds, what are the postconditions (what do we know)?
What are the inputs and output...
Making the Android emulator run faster
...sluggish. For some devices, like the Motorola Droid and the Nexus One, the app runs faster in the actual device than the emulator. This is a problem when testing games and visual effects.
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自己搭建的MQTT云服务器 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
自己搭建的MQTT云服务器，怎么用APP inventor 做APP远程控制开关灯？ 谢谢指导MQTT保姆级入门教程已出，请参考：https://www.fun123.cn/reference/iot/MQTTGuide.html
按照例程我实现了功能，但编译成APK安装在手机上后，有个致命问题：每次...
App Inventor 2 参考文档 · App Inventor 2 中文网
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App Inve...
App Inventor 2 颜色代码块 · App Inventor 2 中文网
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App Inve...
APP 添加新的房间开关 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
APP 在使用中 如果想添加新的房间开关控制，在前期制作APP 时，如何制作这一部分功能?我的理解，就是新增一个设备连接成功即可，然后把它归类到某个房间。房间可以添加多个，维护设备和房间的一个映射关系。意思就是 ...