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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...
How do I align views at the bottom of the screen?
...onstrain the bottom of the view to the bottom of the ConstraintLayout with app:layout_constraintBottom_toBottomOf="parent"
The example below creates a FloatingActionButton that will be aligned to the end and the bottom of the screen.
<android.support.constraint.ConstraintLayout
xmlns:android...
ImageView in circular through xml
... edited Jan 28 at 9:28
Ajay Gurappanavar
44622 silver badges1313 bronze badges
answered Feb 28 '14 at 21:07
O...
Duplicate ID, tag null, or parent id with another fragment for com.google.android.gms.maps.MapFragme
I have an application with three tabs.
23 Answers
23
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Running a Haskell program on the Android OS
... thus I assume this means you can not distribute native executables on the app store even when the NDK gcc port can generate native executables just fine. This also probably kills the option for using LLVM unless you can get the NDK JNI working with LLVM.
The biggest hurdle isn't so much of getting...
App Inventor 2 NotificationStyle 拓展：个性化通知栏样式 · App Inventor 2 中文网
创建 Apps 首页 关于我们 关于我们 发布日志 服务条款 教育 入门必读 中文教程 IoT专题 AI2拓展 ChatGPT接入 Aia Store 开通VIP ...
Remove/hide a preference from the screen
... i need completely hide one of the preferences from the screen based on my app state. There is a setEnabled method, but it's not exactly what i want. I want to remove that preference from the screen completely.
Is it possible ?
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How to Customize a Progress Bar In Android
I am working on an app in which I want to show a ProgressBar , but I want to replace the default Android ProgressBar .
9 ...
Android selector & text color
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without the android:drawable the app crashes with this selector xml
– neufuture
Sep 18 '11 at 13:34
4
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Android ListView with different layouts for each row
...ecause Android OS keeps the layout reference to reuse your item when it disappears and appears back on the screen. If you don't use this approach, every single time that your item appears on the screen Android OS will create a new one and causing your app to leak memory.
public class ViewHolder {
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