:
$ nvm_nodejs_org_mirror=https://npm.taobao.org/dist NVM Install 0.11.11
So you'll see a very fast progress bar:
######################################################################## 100.0%nowusingnode v0.11.11
If you do not want to enter the environment variable nvm_nodejs_org_mirror every time, then I recommend you to add to the. bashrc file:
# nvmexportnvm_nodejs_org_mirror=https://npm.taobao.org/distsource~/git/nvm/nvm.sh
Then the terminal input
Soloader is a small, open-source project for loading so library files from Facebook , with the primary role of automatically checking and loading multiple dependent so library files. In the Android platform, react-native projects use a large number of dynamic link libraries, the JNI technology, as Java and Javascript Communication bridge between the two programming languages.Unzip the installer package fo
group in Azure portal for the "Bloom" ASP. NET MVC siteDownload the Publish profile configuration to the specified native location, which is used primarily for authentication when publishing an ASP. NET site to Azure3. One click to publish an ASP. NET MVC site to AzureSelect Import Imports, where the publish profile d
The network request fetch method in React native is the simplest, but it can implement most network requests and need to know more access:1190000003810652/** * Sample React Native App * https://github.com/facebook/react-
Suppose we now have a need to customize a component that consists of a small icon and a text description of the icon, with a background color, a back-view setting, and a width height setting. As shown is the composition of two such components.First, in the Index.android.js directory to create a new JS file, named Item.js, enter the template code inside/*** Sample React Native
after the--alias parameter is what you need to use to sign the app in the future, so remember to record the alias. The project location where the generated KeyStore file is placedTo edit the ~/.gradle/gradle.properties, add the following code (note replace it with the corresponding password)Myapp_release_store_file=my-release-key.keystoreMyapp_release_key_alias=my-key-aliasmyapp_release_store_password=*****myapp_release_key_password=*****Note: Once
React Native Knowledge 10-ListView components, react10-listview
ListView-a core component used to efficiently display a list of changed data that can be vertically rolled. The most basic method is to create a ListView. dataSource data source, then pass it a common data array, then use the data source to instantiate a ListView component, and define its renderRow callback function, this function accepts each
certificate management tools for details.Execute in the main directory of the project:keytool -genkey -v -keystore my-release-key.keystore -alias my-key-alias -keyalg RSA -keysize 2048 -validity 10000[注:在产生的时候需要提供密钥和存储密码,后续会用到]mv my-release-key.keystore android/app/2, modifyandroid/gradle.propertiesFile, add the followingMYAPP_RELEASE_STORE_FILE=my-release-key.keystoreMYAPP_RELEASE_KEY_ALIAS=my-key-aliasMYAPP_RELEASE_STORE_PASSWORD=xxMYAPP_RELEASE_KE
Recently trying to use React Native to do something, found that the real machine debugging or some pits exist. IOS Real-Computer debuggingFirst, you have to make the debug computer and your phone must be in the same WiFi network below
Open the files for your IOS project AppDelegate.m
Change jsCodeLocation to localhost your computer's local area network IP address
In Xcode , select your pho
React native uses props for data transfer and communication between pages. In react native, there are two ways to store and pass data: props (attributes) and state (states), Where:
Props is typically specified in the parent component and, once specified, no longer changes in the lifetime of the specified compo
if the device is addedAfterThen modify the IP,IP address is your computer's IPv4 address, where you can directly use the ipconfig command to see the address, but each boot may assign you a different IP, you can go to fix your IP, go to the network settings on the computer to find the adapterModify the IPv4 network, this look at the personal situationAfter you run the react-native run-android command in the
React NativeA set of cross-platform scenarios based on the node. JS model environment, using the react UI environment.The real-world scenario might be a node. JS-based model environment, based on each platform's UI environment.iOS Environment installation1. Install NVMHttps://github.com/creationix/nvm#installation2. Install nodeNVM Install 5.3.0NVM Alias Default node3. Installing WatchmanBrew Install Watchm
First, the basic software1. Installing jdk-1.8.0_922. Install Android studio-2.1.2 (the one with file size 1.2G)3. Install node. JS (Currently the latest is 6.3.0)4. Installing git-2.9.05. Install genymotion-2.7.2 (enter setting configuration SDK for Android Studio SDK)Note The 1:genymotion Simulator opens to open wifi,react native needNOTE 2: Set the environment variable Android_home value: C:\USERS\CLOCK\
getMoviesFromApiAsync() { return fetch(‘http://facebook.github.io/react-native/movies.json‘) .then((response) => response.json()) .then((responseJson) => { return responseJson.movies; }) .catch((error) => { console.error(error); }); }You can also use the/syntax in the ES7 standard in the React native
:
_handlemoveshouldsetpanrespondercapture2 (Event:object, Gesturestate:object,): boolean {
console.log ( Gesturestate.dy);
Console.log (' _handlemoveshouldsetpanrespondercapture2 ');
When you swipe to the top and continue to pull down,
return this._reachend2gesturestate.dy>=0;
}
Okay ~ Our first page of the parent control gets the swipe event, we continue to pull up, that is, to pull up the distance to our "Pull up View Details" component:_handlepanr
abnormal, pause execution, automatically locate the problem line, which is very helpful to our debugging program, it is recommended to open.
Performance analysis?? As mentioned in the introduction of the Google Chrome Debug Timeline tool Profiles , you can do a performance analysis together, such as Timeline the information provided below:Focus on optimization by viewing the total time spent on app execution over a specified time period, and whi
Android uses the package name as the unique ID for the app.Assuming the package name is com.oc.objective, the following needs to be modified.Two Java files
Android/app/src/main/java/com/project_name/mainactivity.java
Android/app/src/main/java/com/project_name/mainapplication.java
修改第一行package com.oc.objective;Description file for Android
Android/
React native for Android throws the following exception, workaround:Java.lang.RuntimeException:Unable to load script from assets ' Index.android.bundle '.Https://stackoverflow.com/questions/44446523/unable-to-load-script-from-assets-index-android-bundle-on-windows
(in project directory)mkdir android/app/src/main/assets
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