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Async Image Loader Extension:异步图像加载器扩展 - App Inventor 2 拓展...

...r(--secondary-high)]512×512 8.95 KB AsyncImage An extension for MIT App Inventor 2. Simple asynchronous image loader extension to load image asynchronously in an image or arrangement component with circular image. This is a simple, light weight and fast async image loader since it does not...
https://bbs.tsingfun.com/thread-2498-1-1.html 

【解决】java.lang.ArrayIndexOutOfBoundsException: length=1; index=-1 a...

...nce(Looper.java:201) at android.os.Looper.loop(Looper.java:288) at android.app.ActivityThread.main(ActivityThread.java:8060) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571) at com.android.internal.os.ZygoteInit.ma...
https://bbs.tsingfun.com/thread-2518-1-1.html 

搜索不到ble设备 - App应用开发 - 清泛IT社区,为创新赋能!

使用AI伴侣能搜索到ble设备,但是安装apk后搜索不到,这是怎么回事呢大概率是权限问题,在手机设置将 app 相关权限都打开试试,尤其是发现设备等权限。
https://bbs.tsingfun.com/thread-2639-1-1.html 

【二进制】UrsAI2ByteArray 字节数组扩展:读写二进制数据,二进制文件读写...

...一个元素的索引)可以使用Base属性设置。可能的值为1(App Inventor中常用)或0(Java或C中常用)。组件以空数组开始,这意味着它不包含任何元素。可以使用以下方法添加元素:AddByte(无符号8位数字[0..255])AddWord(无符号16位数...
https://bbs.tsingfun.com/thread-2686-1-1.html 

ble蓝牙怎么接收中文 - App Inventor 2 拓展 - 清泛IT社区,为创新赋能!

...//www.fun123.cn/reference/iot/bluetooth_codec.html 保证单片机侧和App侧一致的中文编码方式即可。盲猜BLE中应该是UTF8编码,单片机GB2312编码。
https://bbs.tsingfun.com/thread-2704-1-1.html 

507问题求助 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

各位大佬们帮我看看为什么我的app会出现蓝牙无法连接问题,我是根据其他人的逻辑设计做下来的,但是我的手机连接不上蓝牙模块,会显示507问题
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getExtractedText on inactive InputConnection warning on android

... I ran into a similar issue. My logcat: W/IInputConnectionWrapper(21214): getTextBeforeCursor on inactive InputConnection W/IInputConnectionWrapper(21214): getSelectedText on inactive InputConnection W/IInputConnectionWrapper(21214): getTextBeforeCursor on inactive InputConnection W/I...
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Allow CORS REST request to a Express/Node.js application on Heroku

...d URL bar, etc. I'm now trying to get it working for requests from another app, on a different domain (CORS). 5 Answers ...
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Android Log.v(), Log.d(), Log.i(), Log.w(), Log.e() - When to use each one?

... Let's go in reverse order: Log.e: This is for when bad stuff happens. Use this tag in places like inside a catch statement. You know that an error has occurred and therefore you're logging an error. Log.w: Use this when you suspect something shady is going on. You may not be completely ...
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How can I access getSupportFragmentManager() in a fragment?

... This will return android.app.Fragment. In some cases, you need android.support.app.v4.Fragment so it will not work all the time. – codingpuss Jan 25 '15 at 2:41 ...