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Getting started with React Native

Alongside node comes a tool called npm which stands for node package manager....First of all, you need to install Android studio for using a virtual android device....Now, go to play store on the virtual device and install expo app....Finally, click on “Run on Android device/emulator” button....some of the React Native code and understand what are all those gibberish mean.

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react-native获取设备信息组件（react-native-device-info）

二、组件介绍 1.首先需要安装组件:npm install react-native-device-info --save 2.IOS初始化:打开Xcode——>右击Libraries——>选择文件到当前项目...，进入到node_modules/react-native-device-info——>添加.xcodeproj文件 2.1.在Xcode中点击你的工程名字——>Build Phases——>Link.../React 并且修改 recursive 2.3.好了，下面就是基本的用法了 import DeviceInfo from 'react-native-device-info' console.log...()); // e.g US 3.Android的安装： 3.1首先需要修改下Gradle文件在你的根目录下运行:react-native link react-native-device-info...翻译链接:https://github.com/rebeccahughes/react-native-device-info

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A Cold Dive into React Native (Tutorial for Beginners)

web technologies in the mobile space, things like Apache Cordova spring to mind, which allow us to package...Without any major refactoring, a website or web application works on the mobile device....What helps is installing Watchman through the Brew package manager with brew install watchman..../assets/fonts/" ] } After we’ve done all that, we can finally run react-native link....The way React Native works is that it puts all of our JavaScript files in a bundle.

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Why Use React Native for Your Mobile App Development in 2020

of time is all discussed in this article....React Native is the recipe that allows you to write code for your application once and use it for all...What does this all mean?...to device, React Native does not handle some of these as natively as it can....You can visit React Native’s website to see a list of other companies that currently use React Native

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产品动态 | TRTC React Native SDK上线啦

React Native 是一个使用React和应用平台的原生功能来构建 Android 和 iOS 应用的开源框架。...通过 React Native，您可以使用 JavaScript 来访问移动平台的 API，以及使用 React 组件来描述 UI 的外观和行为：一系列可重用、可嵌套的代码。...TRTC React Native SDK 是基于腾讯云 iOS/Android 平台的 TRTC SDK 进行封装的，架构图整体跟Flutter类似。...集成SDK ReactNative SDK 已经发布到 npm (https://www.npmjs.com/package/trtc-react-native)，您可以通过配置 package.json...在项目的 package.json 中写如下依赖： "dependencies": { "trtc-react-native": "^2.0.0"}, 2.

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蓝牙4.0通讯协议

手机端应用：通过 BLE 接收心率数据。在应用中显示实时心率。实现思路硬件平台：ESP32 开发板（支持 BLE）。...BLE 角色：心率传感器作为 BLE 外围设备（Peripheral）。手机作为 BLE 中心设备（Central）。...pubspec.yaml dependencies: flutter: sdk: flutter flutter_blue: ^0.8.0 手机端代码 import 'package:flutter.../material.dart'; import 'package:flutter_blue/flutter_blue.dart'; void main() => runApp(HeartRateApp...device.connect(); setState(() { connectedDevice = device; }); // 获取服务 List<BluetoothService

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Android 9.0 蓝牙扫描流程

Java 层调到 JNI 层的com_android_bluetooth_btservice_AdapterService.cpp文件中的 startDiscoveryNative 方法： private native...; adv_filt_param->filt_logic_type = BTA_DM_BLE_PF_FILT_LOGIC_OR; adv_filt_param->list_logic_type...= BTA_DM_BLE_PF_LIST_LOGIC_OR; adv_filt_param->rssi_low_thres = LOWEST_RSSI_VALUE; adv_filt_param...= BT_DEVICE_TYPE_BLE && p_search_data->inq_res.device_type == BT_DEVICE_TYPE_BLE))) {...)p_search_data->inq_res.device_type; } if (p_search_data->inq_res.device_type == BT_DEVICE_TYPE_BLE

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深入浅出低功耗蓝牙(BLE)协议栈（实战篇）

/configure make && make plugins sudo make suidinstall sudo make plugins-install （6）安装BLE解密工具crackle crackle...to LE White List lewlrm Remove device from LE White List lewlsz Read size of LE White...List lewlclr Clear LE White list lecc Create a LE Connection ledc Disconnect a LE...Show all help options --help-gatt Show all GATT commands --help-params...Show all Characteristics Value/Descriptor Read/Write arguments Application Options

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ReactNative开发环境的搭建与开发前准备

这个工具用来初始化ReactNative项目，命令如下： npm install -g react-native-cli 使用react-native -v命令来检查是否安装成功：到此...命令成功执行后，进入到项目根目录中，如下：使用react-native run-ios或者react-native run-android来进行iOS项目或者Android项目的运行，如果你看到如下图所示的界面...用来安装插件，List Packages用来查看已经安装过的插件，Remove Package用来删除一个已经安装的插件等，如下：点击Install Package进入SublimeText...插件五：react-native-snippets react-native-snippets可以快速的创建ReactNative类等代码块，用法github如下： https://github.com.../Shrugs/react-native-snippets。

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React native开发中常见的错误

react native环境搭建请移步：react native环境搭建这里说说react native创建完成之后，运行中出现的常见问题，问题1： java.lang.RuntimeException...这个是因为未找到运行的设备解决方法：注意在运行命令：react-native run-android之前一定要确保手机已经连接上电脑。...这个是因为react-native版本升级了，但是在项目的build.gradle没有改成升级的版本号。...问题8 com.android.ddmlib.InstallException: Failed to install all ?...A：请用编辑器打开项目目录中的package.json，找到类似下面的一行配置 "react-native": "0.31.0" Q：应该使用什么IDE开发？

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现有Android项目引入ReactNative--九步大法

动态添加ReactNative 第一步：初始化package.json文件：在工程根目录下的CMD中输入npm init，然后会生成package.json文件 ?...第三步：添加react和react-native 模块：在根目录执行如下代码： npm install --save react react-native 效果如图： ?...查看项目中有node_modules，说明react和react native 安装完成,如果没有说明安装失败，需要重新安装第四步：添加index.android.js文件到项目中： import React...第五步：添加ReactNative相关依赖： 1.在app的build.gradle文件中添加react-native依赖库 compile "com.facebook.react:react-native...2.在project的build.gradle文件中添加react-native路径 maven { // All of React Native (JS, Obj-C sources,

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RN组件库-别考虑了关注收藏吧

/react-native-toast 获取设备各类信息 https://github.com/rebeccahughes/react-native-device-info WebStorm ReactNative...jpush-react-native //官方版本 https://github.com/jpush/jpush-react-native react-native-jpush 由 React Native...侧滑按钮 https://github.com/dancormier/react-native-swipeout https://github.com/jemise111/react-native-swipe-list-view...加密 https://www.npmjs.com/package/crypto-js 缓存管理 https://github.com/reactnativecn/react-native-http-cache...类似网易新闻标签（首页） https://www.npmjs.com/package/react-native-scrollable-tab-view 视频播放 npm install react-native-video

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React Native ios 常见错误和解决方法

/react-native/React +\$(SRCROOT)/../../React +\$(SRCROOT)/.....Native 'config.h' file not found cd node_modules/react-native/third-party/glog-0.3.5 ../...../nodejs-assets\/.*/, /android\/.*/, /ios\/.*/]), }, }; Clear watchman watches: watchman watch-del-all.../react-native/React $(SRCROOT)/../../React $(SRCROOT)/...../react-native/React 更改模拟器 react-native run-ios --simulator "iPhone 7 Plus" 注意事项执行 react-native link

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AudioManager setMode机制

' // is not DEVICE_OUT_BLE_* even when BLE is connected....setLeAudioVolumeOnModeUpdate(mode); // when entering RINGTONE, IN_CALL or IN_COMMUNICATION mode, clear all...这儿有一个回调 onPlaybackConfigChange private void onPlaybackConfigChange(List...updateHearingAidVolumeOnVoiceActivityUpdate(); } // Update playback active state for all...这儿还有一个逻辑: void initMonitor() { AudioSystem.setRecordingCallback(this); } 这儿会注册Native的通知，Native

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React Native android 常见错误和解决方法

这个 BUG 是 Xcode.11 引起的, 可以查看这个问题的提交记录，链接为：https://github.com/facebook/react-native/issues/25138 我们只需要找到...of React Native (JS, Obj-C sources, Android binaries) is installed from npm url "$rootDir.../node_modules/react-native/android" } maven { url "https://maven.google.com...打开 ReactNative 根目录下的 node_modules 文件夹找到 react-native-yunpeng-alipay 文件夹并打开依次打开目录： android -> src ->...:react-native:+' // compile -> implementation } Execution failed for task ':app:processDebugManifest

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Windows环境下搭建React Native

/ 安装react-native命令行工具react-native-cli https://github.com/facebook/react-native 将react-native-cli克隆到某个盘...进入刚刚目录下的react-native目录下的react-native-cli目录，输入npm install –g 安装成功之后 ? ?...7、运行package 在命令行中进入项目目录，输入react-native start，等待一段时间： ?...7、运行项目刚刚运行package的命令行不要关闭，重新启动一个新的命令行，进入项目目录，输入react-native run-android ?...这时候我们摇一摇手机，点击Dev Settings后，点击Debug server host & port for device,设置IP和端口 “摇一摇”这个动作在模拟器可以用ctrl+M (Menu

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产品动态 | TRTC React Native SDK开挂辅助神器上线~

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React-Native 入门

package.json: 主工程描述文件。这些是我们接触最多比较重要的一些文件或文件夹。 2、运行项目初始化项目之后，就可以运行项目了。...image.png USB 连接手机（手机需要开启开发者选项和 USB 调试），命令行输入，adb devices: image.png 当看到有 device 时，说明手机连接成功，adb 可用。...c:\user\user.gradle\wrapper\dists\gradle-3.5.1-all\42vjebfdws9pjts3l4bouoq0p 下，名称可能不一致，和自己的对应上就可以。...@0.44.0react-native upgrade 然后修改项目根目录下的 package.json 为如下： {"name":"NewProjet","version":"0.0.1","private...首先还是确定自己的手机连接上了电脑，如果是无线调试的话，需要设置 ip 和端口，步骤如下：摇晃手机，显示菜单 =》点击Dev Settings =》点击Debug server host & port for device

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React Native之常用第三方库

react-native-animatable 动画 react-native-carousel 轮播 react-native-countdown 倒计时 react-native-device-info...可滚动标签 react-native-side-menu 侧栏 react-native-swiper 轮播 react-native-video 视频播放 react-native-viewpager.../jemise111/react-native-swipe-list-view 图表 https://github.com/tomauty/react-native-chart 下拉放大.../package/crypto-js 缓存管理 https://github.com/reactnativecn/react-native-http-cache ListView的优化...://github.com/cnjon/react-native-pdf-view 获取设备信息 https://github.com/rebeccahughes/react-native-device-info

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前端高级工程师（大前端）-慕K全栈开发

Native和FlutterReact Native慕课前端高级工程师（大前端）中React Native允许使用React构建原生移动应用。...javascriptimport React from 'react';import { Text, View } from 'react-native';export default function...Native!...pythonimport openaiprompt = "Generate a Python function to sort a list of numbers."..._id}>{task.description})} );}export default App;移动端使用React Native

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点击加载更多

Getting started with React Native

react-native获取设备信息组件（react-native-device-info）

A Cold Dive into React Native (Tutorial for Beginners)

Why Use React Native for Your Mobile App Development in 2020

产品动态 | TRTC React Native SDK上线啦

蓝牙4.0通讯协议

Android 9.0 蓝牙扫描流程

深入浅出低功耗蓝牙(BLE)协议栈（实战篇）

ReactNative开发环境的搭建与开发前准备

React native开发中常见的错误

现有Android项目引入ReactNative--九步大法

RN组件库-别考虑了关注收藏吧

React Native ios 常见错误和解决方法

AudioManager setMode机制

React Native android 常见错误和解决方法

Windows环境下搭建React Native

产品动态 | TRTC React Native SDK开挂辅助神器上线~

React-Native 入门

React Native之常用第三方库

前端高级工程师（大前端）-慕K全栈开发

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