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app inventor 2 怎么进行延迟操作？ - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...可以考虑计时器设置一个间隔，到计时点后停止计时器并调用你的逻辑来实现。
低功耗蓝牙接收串口16数据 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...电脑没发数据也在跳变）。接收到的是10进制的数据通过调用AsciiConversion1模块转化和提取转化都不行。波特率设置为9600，这个很重要！！
经过测试，发送接收的字节都是正常的：
在没有发送数据的时候，不会跳变。
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【解决】java.lang.ArrayIndexOutOfBoundsException: length=1; index=-1 a...
...nternal.os.ZygoteInit.main(ZygoteInit.java:1091)复制代码原因：没有调用 SetWebView 方法导致的。
AppInventor写二进制文件 - App应用开发 - 清泛IT社区，为创新赋能！
...用遍历字节列表，然后将字节逐一将追加到拓展中，最后调用拓展方法保存为二进制文件。
Showing the same file in both columns of a Sublime Text window
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Ctrl+Shift+2 shortcut for split screen and drag the file over
– zadubz
Dec 18 '14 at 14:15
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Software keyboard resizes background image on Android
...e software keyboard appears, it resizes the background image. Refer to the screenshot below:
17 Answers
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LinearLayout not expanding inside a ScrollView
...and last add this ScrollView to LinearLyout.If defined area is exceed from Screen size then u will get a Scroll within ScrollView.
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Multiple submit buttons on HTML form – designate one button as default [duplicate]
... the default button first. If you can't hack the layout to give you the on-screen order you want, then you can do it by having a dummy invisible button first in the source, with the same name/value as the button you want to be default:
<input type="submit" class="defaultsink" name="COMMAND" valu...
How do I stop a Git commit when VI is on the screen waiting for a commit message?
...w.com%2fquestions%2f4323440%2fhow-do-i-stop-a-git-commit-when-vi-is-on-the-screen-waiting-for-a-commit-message%23new-answer', 'question_page');
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/data/user/0/xxxx/files（内部存储）和 /storage/emulated/0/Android/data...
...会出现在相册或音乐应用中。
若需加入媒体库，需手动调用 MediaScannerConnection.scanFile()。
内部存储：
永远不会被媒体扫描。
5. 选择建议优先使用内部存储：
存储敏感数据（如数据库、配置文件）或小体积文件，确保绝对隐...