3/31/2024 0 Comments Simple server android apk![]() ![]() observeOn(AndroidSchedulers. ![]() By default, Android Studio 2.2 and the Android Plugin for Gradle 2.2 sign your app using both APK Signature Scheme v2 and the traditional signing scheme, which uses JAR. If you want to do network operation just use it like this: Observable Android 7.0 introduces APK Signature Scheme v2, a new app-signing scheme that offers faster app install times and more protection against unauthorized alterations to APK files. I recommend using RxJava/RxAndroid if you want to do this on another thread. I'm not familiar with socket.emit() method but it might throw network exception since it's running on UI thread and you are not allowed to do that. Object.keys(io.sockets.sockets).forEach(function (id) Server Side(Node.js) var app = require('express')() Ĭonsole.log('Android device has been connected') Ĭonsole.log('message from Android : ' + data) Yesterday, this error didn't happened and another error occured. What android says is ": Attempt to invoke virtual method 'void ()' on a null object reference". When I press send button, My android app shut down. But I cant send message to android from node.js. When I write a word at android app and press button, the message transmitted successfully(I can confirm by console at node.js). This is just a example, actually my object is android send a data(message) to server, and receive another data(message) from server. That is When I write a word at edittext in android app such as "Hi", Then android app send message "Hi" to node.js server and node.js server send message "Hi has sent successflly" to android app. ![]()
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