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Android 4.3 Bluetooth Low Energy unstable
...w Energy (testing on the Nexus 4). After getting started with the official BLE APIs in Android 4.3, I have noticed that after I connect a device for the first time I am rarely able to successfully connect to / communicate with that device or any other device again.
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AppInventor2实现蓝牙开启提醒，当蓝牙未开启时弹窗提醒用户开启蓝牙 - 创...
1、代码如下：
当蓝牙未启用时，会自动弹出交互框，让用户选择启用手机蓝牙。
当蓝牙已启用时，这2个代码块将没有任何效果（不提醒也不报错）。
2、也可加一个判断，代码如下：
3、蓝牙开启提醒的交互效果如...
首次打开app时，提示打开蓝牙权限，打开后点击开始搜索，设备列表没有显示...
...由 fun_hcf 于 2025-08-11 09:48 编辑
首次打开app时，提示打开蓝牙权限，打开后点击开始搜索，设备列表没有显示蓝牙设备，而且app卡住了点不动，后面需要先在手机系统设置先打开蓝牙，然后启动app才能搜索到设备，请问大家这个...
Get the distance between two geo points
...r results[] get the correct distance.
– Gastón Saillén
Nov 11 '18 at 2:58
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蓝牙客户端组件：为什么不显示蓝牙设备列表？为啥蓝牙列表为空 - App Inven...
转会员提问：蓝牙客户端组件：为什么不显示蓝牙设备列表？为啥蓝牙列表为空？
解决方法：设置中打开 app 的“附近设备权限”即可。
【HarmonyOS】真机测试ble - HarmonyOS NEXT - 清泛IT社区，为创新赋能！
...:
[2:01:15 PM] 组件数: 9
[2:01:15 PM] 同步 Form 属性: Title=BLE硬件控制demo TitleVisible=true ShowStatusBar=true
[2:01:15 PM] YAIL[234]: (begin (require <com.google.youngandroid.runtime>) (process-repl-input "JzMV(3fN...
[2:01:15 PM] → SimpleYail 执行
[2:01:15...
[SOLVED] Can't send payload > 23bytes(MTU setted to 128bytes) - #9 by ...
...cheme is dark */
/* user picked a theme a light scheme and also enabled a dark scheme */
/* deal with light scheme first */
@media (prefers-color-scheme: light) {
:root {
--primary: #222222;
--secondary: #ffffff;
--tertiary: #008...
Case insensitive XPath contains() possible?
...ÇÅÏÕÑŒ', 'abcdefghijklmnopqrstuvwxyzäöüéèêàáâòóôùúûçåïõñœ'),'foo')]");
– Stefan Steiger
Nov 29 '13 at 9:34
1
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How do you find the last day of the month? [duplicate]
...ed Nov 2 '10 at 15:07
Øyvind BråthenØyvind Bråthen
52.2k2525 gold badges113113 silver badges138138 bronze badges
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Eclipse comment/uncomment shortcut?
... to change the shortcuts for Swedish users?
– David Mårtensson
Sep 9 '13 at 22:30
1
@DavidMårte...