I am trying to send data from one android phone to another using "react-native-bluetooth-classic". I successfully run the example in the repo, but I am not able to connect to the paired devices. Sometimes, I can connect to a phone but the other can't connect back.
Is there any configuration I should to the phone's bluetooth?
Merged the pull request last night, should be able to connect from one device to another with the provided BluetoothClassicExample app using the Accept Connection button at the bottom of the device list.
async acceptConnections() {
console.log("App is accepting connections now...");
this.setState({ isAccepting: true });
try {
let connectedDevice = await RNBluetoothClassic.accept();
if (connectedDevice) { // Undefined if cancelled
this.setState({ connectedDevice, isAccepting: false });
}
} catch(error) {
console.log(error);
this.refs.toast.show(
`Unable to accept client connection`,
DURATION.LENGTH_SHORT
);
this.setSTate({ isAccepting: false });
}
}
This is only available on Android as from what I've seen, there are no ways to see the connection on IOS. I was able to connect my Android to my IOS using the example app, but without the Android MFi protocols, the data just gets sent into the IOS void.
Related
I have tried to follow this guide https://rnfirebase.io/messaging/usage/ios-setup to set up push notifications for my React-Native application. In particular, I have done the following:
Adding Push Notification & Background Mode capabilities(with Remote fetch and background activities)
Register a key(with APNs enabled) in Apple developer account and upload it to firebase console settings with the correct KeyID(obtained when registering the key) and TeamID(obtained from developer's membership detail)
Register the App Identifier(with APNs capability). Since there are two bundle Identifiers for my project - org.reactjs.native.example.AppName and org.test.AppName, I have tried both but none works.
Register a Provisioning profile. I believe this wil automatically sync with my Xcode.
I note that I can further configure the APNs capability after registering the App Identifier, but this is not mentioned in the guide and I didn't do that:
To configure push notifications for this App ID, a Client SSL Certificate that allows your notification server to connect to the Apple Push Notification Service is required. Each App ID requires its own Client SSL Certificate. Manage and generate your certificates below.
In my React-Native application, I have the following code:
const App => {
useEffect(() => {
async function requestUserPermission() {
const authStatus = await messaging().requestPermission();
const enabled =
authStatus === messaging.AuthorizationStatus.AUTHORIZED ||
authStatus === messaging.AuthorizationStatus.PROVISIONAL;
if (enabled) {
console.log('Authorization status:', authStatus);
}
}
requestPermission();
});
useEffect(() => {
async function getToken() {
await messaging().registerDeviceForRemoteMessages();
const token = await messaging().getToken();
console.log(token);
}
getToken();
});
...
}
After accepting the notification permission request when the app launch. This will output the FCMs token, which I use to send a test message in the Firebase console.
Did I miss any steps? Is it possible to send push notifications in React-Native debug built running under metro in the first place? Thank you in advance.
I figured out the problem. It is because I used a different bundle ID when building the product in XCode and when registering the identifier in Apple Developer Account. The steps by steps does work as of writing.
I have tried to open gmail using linking.openUrl - mailto option. I can open gmail in my real device with first attempt.But In emulator its not open in first attempt and if I click same link second time it open gmail.
I couldn't understand what could be the cause.
Sample code:
Linking.canOpenURL(url)
.then(ok => {
if (ok) {
console.log(Linking.openURL(url));
return Linking.openURL(url);
} else {
console.warn("can't open mailto: iOS sim doesn't support it");
}
})
.catch(err => {
console.error(err);
});
Initially checking given url is valid or not. If valid try to open using openUrl concept
I have updated my app on app and play store and I want to force my app users to update the new version of app in App store and playstore.
You can check for the App Store / Play Store version of your app by using this library
react-native-appstore-version-checker.
In expo app you can get the current bundle version using Constants.nativeAppVersion. docs.
Now in your root react native component, you can add an event listener to detect app state change. Every time the app transitions from background to foreground, you can run your logic to determine the current version and the latest version and prompt the user to update the app.
import { AppState } from 'react-native';
class Root extends Component {
componentDidMount() {
AppState.addEventListener('change', this._handleAppStateChange);
}
_handleAppStateChange = (nextState) => {
if (nextState === 'active') {
/**
Add code to check for the remote app version.
Compare it with the local version. If they differ, i.e.,
(remote version) !== (local version), then you can show a screen,
with some UI asking for the user to update. (You can probably show
a button, which on press takes the user directly to the store)
*/
}
}
componentWillUnmount() {
AppState.removeEventListener('change', this._handleAppStateChange);
}
}
import VersionCheck from 'react-native-version-check';
i have used version check lib for this purpose and approach i used is below. if version is lower i'm opening a modal on which an update button appears, and that button redirects to app store/google play
componentDidMount() {
this.checkAppUpdate();
}
checkAppUpdate() {
VersionCheck.needUpdate().then(res => {
if (res.isNeeded) {
setTimeout(() => {
this.setState({openModal: true});
});
}
});
}
updateApp = () => {
VersionCheck.getStoreUrl({
appID: 'com.showassist.showassist',
appName,
})
.then(url => {
Linking.canOpenURL(url)
.then(supported => {
if (!supported) {
} else {
return Linking.openURL(url);
}
})
.catch(err => console.error('An error occurred', err));
})
.catch(err => {
console.log(`error is: ${err}`);
});
};
For future readers.
If you are using Expo managed workflow, install this package react-native-version-check-expo using yarn add react-native-version-check-expo or npm install react-native-version-check-expo.
Consult the package documentation on Github for usage guidelines.
I'm using react-native-version-check-expo library to achieve this. Working fine for me.
if you are looking for an easy to integrate built in solution. You can use App Upgrade https://appupgrade.dev/ service to force update your mobile apps.
Create new version entry for your app version that you want to update in the app upgrade service and select whether you want to force it or just want to let users know that new version is available.
Integrate your app with App Upgrade using available SDK. Official SDK are available for React Native, Flutter, Expo, Android and iOS(Swift).
The SDK will take care of the rest.
Whenever you want to force upgrade a version just create a version entry in app upgrade dashboard.
You can also integrate using API. Just call the appupgrade api from your app with the required details such as your app version, platform, environment and app name.
The API will return you the details.. that this app needs to be updated or not.
Based on the response you can show popup in your app.You can call this API when app starts or periodically to check for the update. You can even provide a custom message.
API response:
See the response has force update true. So handle in the app by showing popup.
You can find the complete user documentation here. https://appupgrade.dev/docs
Thanks.
I am making a react native app for android devices using socket.io-client. Everything works fine but when the app goes on background mode (e.g. an other app launched) the socket connections disconnects from the server (app emits 'disconnect' event).
What is the best way to deal with it?
In the disconnect event of the socket I reconnect it, if user is not logging out.
socketInstance.on('disconnect', (err) => {
console.log('SOCKET DISCONNECT', err);
var deauthorize = store.getState().auth.account.deauthorize;
if (!deauthorize) {
store.dispatch(NotificationActions.addNotificationAction('SOCKET DISCONNECT'));
store.dispatch(AppActions.shouldConnectAction());
store.dispatch(CommunicationActions.connectSocketAction());
}
});
I'm trying to implement push notification with Appcelerator Cloud Service on Android But I have some issues ... tiapp.xml here :
<sdk-version>2.0.2.GA</sdk-version>
<modules>
<module platform="commonjs" version="2.0.5">ti.cloud</module>
<module platform="android" version="2.0.5">ti.cloudpush</module>
</modules>
Android runtime v8 and ti.cloudpush included, here is my app.js file
var win = Ti.UI.createWindow({
backgroundColor:'#ccc',
title:'Android Cloud Push Notification'
})
var CloudPush = require('ti.cloudpush');
CloudPush.debug = true;
CloudPush.enabled = true;
CloudPush.showTrayNotificationsWhenFocused = true;
CloudPush.focusAppOnPush = false;
var deviceToken;
var Cloud = require('ti.cloud');
Cloud.debug = true;
var submit = Ti.UI.createButton({
title : 'Register For Push Notification',
color:'#000',
height : 53,
width : 200,
top : 100,
});
win.add(submit);
submit.addEventListener('click', function(e) {
CloudPush.retrieveDeviceToken({
success: function deviceTokenSuccess(e) {
alert('Device Token: ' + e.deviceToken);
deviceToken = e.deviceToken
loginDefault();
},
error: function deviceTokenError(e) {
alert('Failed to register for push! ' + e.error);
}
});
});
function defaultSubscribe(){
Cloud.PushNotifications.subscribe({
channel: 'chanel',
device_token: deviceToken,
type: 'android'
}, function (e){
if (e.success) {
alert('Subscribed for Push Notification!');
}else{
alert('Error:' +((e.error && e.message) || JSON.stringify(e)));
}
});
}
function loginDefault(e){
//Create a Default User in Cloud Console, and login
Cloud.Users.login({
login: 'android',
password: 'android'
}, function (e) {
if (e.success) {
alert("login success");
defaultSubscribe();
} else {
alert('Error: ' +((e.error && e.message) || JSON.stringify(e)));
}
});
}
CloudPush.addEventListener('callback', function (evt) {
//alert(evt);
alert(evt.payload);
});
CloudPush.addEventListener('trayClickLaunchedApp', function (evt) {
//Ti.API.info('Tray Click Launched App (app was not running)');
alert('Tray Click Launched App (app was not running');
});
CloudPush.addEventListener('trayClickFocusedApp', function (evt) {
//Ti.API.info('Tray Click Focused App (app was already running)');
alert('Tray Click Focused App (app was already running)');
});
win.open();
I had the user android / android in the Appcelerator cloud console for the development mode. Launched my app to my device with debogage mode
On the app : Just click on the button "register for push notification" and see 3 alerts
1) Device Token : " all numbers "
2) login success
3) Subscribed for Push Notification!
On the Appcelerator Cloud console :
Logs -> see login & subscribe, opened it and everything's ok
Push Notifications -> 1 Android clients subscribed to push notifications. And send one throught push notifications with alert & title
And nothing appears at all ... try reboot, try to turn the app off and send another one, nothing.
I was using a device (LG OPTIMUS ONE) with android 2.2.1 with internet on it (wifi). So, I tried with another phone (SAMSUNG GALAXY S2) 3.3.2 with internet on it (wifi)
And the only change is in the cloud console :
Push Notifications -> 2 Android clients subscribed to push notifications.
But it is the same, no notification appears.
Please, I really need help for this, I succeed with iOS in 2 days and I do not understand what is the big deal here ?
I don't think I need to register with Google C2DM for using ACS.
ACS use MQTT protocol for sending push.
(I followed this step by step tut : http://www.titaniumtutorial.com/2012/06/appcelerator-cloud-push-notification-in.html)
Have you already done one project with push notification on Android & Ti ?
I checked my settings and everything is fine.
But, because I'm desperate, I also register to C2DM and nothing better, I guess I have to wait a bit more before testing.
I use the upush module in the Marketplace, took me 10 minutes to gtet it up and running, saved me loads of time.
Have you registered with Google C2DM? You need to fill out the form at https://developers.google.com/android/c2dm/signup to send notifications to the device. Make sure you have your correct App ID in the Appcelerator Cloud Settings.