I'am new to blackberry cascades and was trying my hands on call functionality.
However after running my sample program, the following error is occuring:
import bb.cascades 1.4
import bb.system.phone 1.0
Page {
Container {
layout: StackLayout {
}
Button {
id: callButton
text: "Call me"
verticalAlignment: VerticalAlignment.Center
horizontalAlignment: HorizontalAlignment.Center
onClicked: {
phone.requestDialpad("(519) 555-0100")
}
}
}
attachedObjects: [
Phone {
id: phone
}
]
}
and in my .pro file
LIBS += -lbbsystem
the error I'am facing is: module "bb.system.phone" is not installed
My program is loading but a black screen is displayed.
Any help will be appreciated.
Thanks in advance.
Since the Phone class is a C++ class, the first thing we must do is to register the Phone class as qmlRegisterType for QML access.
See this for help
Add this line to main.cpp
qmlRegisterType("bb.system.phone", 1, 0, "Phone");
For more help
Related
I have a React Native application built with Expo. On How can I add links in a Highcharts tooltip that will open on mobile's browser? I was able to pass a URL to Highcharts so that when a tooltip is clicked, that URL is opened:
return(
<View style={styles.container}>
<ChartView
onMessage={m => this.onMessage(m)}
config={config}
/>
</View>
This triggers this method to open the URL:
onMessage = (m) => {
let data = JSON.parse(m.nativeEvent.data);
Linking.openURL(data.url)
};
And the URL gets populated through a global variable window.myURL and sending the message with postMessage():
render() {
let Highcharts = "Highcharts";
let config ={
...
plotOptions: {
series: {
stickyTracking: false,
point: {
events: {
click: function(e) {
window.postMessage(JSON.stringify({'url': window.myUrl}));
}
}
}
},
},
tooltip: {
useHTML: true,
formatter: function () {
window.myUrl = extras.url;
return `<div class="text">some text</div>`;
}
};
This works well on iOS (both physical and emulator), but does not on Android (neither physical nor emulator).
I have gone through different Github issues such as onMessage not called in native code even though sent from webview( android) and react native html postMessage can not reach to WebView and they tend to suggest using some timeout on window.postMessage(). However, I see that even this does not work:
plotOptions: {
series: {
point: {
events: {
click: function(e) {
setTimeout(function() {
console.log('bla');
window.postMessage(JSON.stringify({'url': window.myUrl}));
}, 200);
}
}
}
},
},
Since even console.log() does not work, it looks to me as if the click event is not being caught by Android.
How can I make Android aware of this event so that I can go through the message and then open the URL?
The "click" event is fine. Problem is that, RN core's <WebView> implementation for Android is flawed at polyfilling window.postMessage(). This issue has been well discussed in this github issue.
So it seems the nature of problem, is RN has to polyfill the native window.postMessage for some reason, but the override didn't take place timely, causing window.postMessage calls still made to the native one.
One solution (for Android) proposed in that github issue, is simply stop using the native window.postMessage, and directly use the internal interface, which is the actual polyfill function.
// in place of `window.postMessage(data)`, use:
window.__REACT_WEB_VIEW_BRIDGE.postMessage(String(data))
One heads-up though, this API is not public and might be subject to change in future.
I run a simple demo to use cordova-plugin-qrscanner, it can scan qrcode but no camera preview.
qrscannerDemo on Github
Related code blow:
import { Component } from '#angular/core';
import { NavController } from 'ionic-angular';
import { AndroidPermissions } from '#ionic-native/android-permissions';
import { QRScanner, QRScannerStatus } from '#ionic-native/qr-scanner';
#Component({
selector: 'page-home',
templateUrl: 'home.html'
})
export class HomePage {
constructor(public navCtrl: NavController,
public androidPermissions: AndroidPermissions,
public qrScanner: QRScanner) {
}
qrscanner() {
// Optionally request the permission early
this.qrScanner.prepare()
.then((status: QRScannerStatus) => {
if (status.authorized) {
// camera permission was granted
alert('authorized');
// start scanning
let scanSub = this.qrScanner.scan().subscribe((text: string) => {
console.log('Scanned something', text);
alert(text);
this.qrScanner.hide(); // hide camera preview
scanSub.unsubscribe(); // stop scanning
});
this.qrScanner.resumePreview();
// show camera preview
this.qrScanner.show();
// wait for user to scan something, then the observable callback will be called
} else if (status.denied) {
alert('denied');
// camera permission was permanently denied
// you must use QRScanner.openSettings() method to guide the user to the settings page
// then they can grant the permission from there
} else {
// permission was denied, but not permanently. You can ask for permission again at a later time.
alert('else');
}
})
.catch((e: any) => {
alert('Error is' + e);
});
}
}
<ion-header>
<ion-navbar transparent>
<ion-title>
Ionic Blank
</ion-title>
</ion-navbar>
</ion-header>
<ion-content padding style="background: none transparent;">
<button ion-button (click)="qrscanner()">qrscanner</button>
</ion-content>
I run the ionic project on android then click the button but nothing happened and no camera preview show.
I test the project again and find it can scan qrcode and get the result test, but no camera preview.
I search the problem, someone says should to set the body and any elements transparent. I try but does not work.
Android. Nothing appears on screen. #35
AnyOne help?
In top level index.html:
<ion-app style="background: none transparent;"></ion-app>
In camera display page html file:
<ion-content style="background: none transparent;">
After some research even i found the answer and surely this works fantastic for all ,but #nokeieng answer helped me too..
1) First, make a new component for qrscanner. In ionic there is a lifecycle in ionic so go according to that after entering the component this event trigger ionViewDidEnter().In this event the camera opens and let you scan.
ionViewDidEnter(){
this.qrScanner.prepare()
.then((status: QRScannerStatus) => {
if (status.authorized) {
// camera permission was granted
var camtoast = this.toastCtrl.create({
message: 'camera permission granted',
duration: 1000
});
camtoast.present();
// start scanning
this.qrScanner.show()
window.document.querySelector('ion-app').classList.add('cameraView');
let scanSub = this.qrScanner.scan().subscribe((text: string) => {
console.log('Scanned something', text);
window.document.querySelector('ion-app').classList.remove('cameraView');
this.qrScanner.hide(); // hide camera preview
const toast = this.toastCtrl.create({
message: 'You scanned text is this :'+text,
duration: 6000
});
toast.present();
scanSub.unsubscribe(); // stop scanning
});
} else if (status.denied) {
const toast = this.toastCtrl.create({
message: 'camera permission was denied',
duration: 3000
});
toast.present();
// camera permission was permanently denied
// you must use QRScanner.openSettings() method to guide the user to the settings page
// then they can grant the permission from there
} else {
const toast = this.toastCtrl.create({
message: 'You can ask for permission again at a later time.',
duration: 3000
});
toast.present();
// permission was denied, but not permanently. You can ask for permission again at a later time.
}
})
.catch((e: any) => console.log('Error is', e));
}
2) After this remove the camera class when back button is pressed for that add this code.
ionViewWillLeave() will triggers when component is destroyed or left.
ionViewWillLeave(){
window.document.querySelector('ion-app').classList.remove('cameraView');
}
3) We are done with .ts file. Now we have to make the component and the main element i.e ion-app transparent so that we can see the camera for that we add this css inside theme/variables.scss
ion-app.cameraView ion-nav{opacity:0}
and
ion-app.cameraView,ion-app.cameraView ion-content,ion-app.cameraView .nav-decor,{
background: transparent url("../../assets/imgs/camera_overlay.png") !important;
background-size: 100% 100% !important;}
4) As you can see I have given a background image so that we get a camera overlay preview
and you are done with the code just run this command in terminal to see live changes in ionic
ionic cordova run android --livereload
You just need to toggle the ion-app display between "none" and "block" if the status is authorized.
const ionApp = <HTMLElement>document.getElementsByTagName("ion-app")[0];
// start scanning
const scanSub = this.qrScanner.scan().subscribe((link: string) => {
ionApp.style.display = "block";
this.qrScanner.hide(); // hide camera preview
scanSub.unsubscribe(); // stop scanning
});
ionApp.style.display = "none";
this.qrScanner.show();
There is a div, with class=“nav-decor”, which has a black background, this needs to be changed to transparent.
I changed 3 things to transparent for the camera to show: ion-app, ion-content and .nav-decor
My solution was to have a “cameraView” class, which would set the ion-app, ion-content and .nav-decor to have a transparent background.
I used this CSS
ion-app.cameraView, ion-app.cameraView ion-content, ion-app.cameraView .nav-decor {
background: transparent none !important;
}
And then these functions to show the camera after qrScanner.show() and hide it after I’m finished scanning
showCamera() {
(window.document.querySelector('ion-app') as HTMLElement).classList.add('cameraView');
}
hideCamera() {
(window.document.querySelector('ion-app') as HTMLElement).classList.remove('cameraView');
}
I've work around following many answers,
Here is my solution combined all of the answer I've read.
In my scss file named page-scan.scss
page-scan {}
ion-app.cameraView,
ion-app.cameraView ion-content,
ion-app.cameraView .nav-decor,
ion-header,
ion-navbar,
ion-title {
background: transparent none !important;
}
ion-app.cameraView {
background-size: 100% 100% !important;
/* To show image border */
background-image: url([YOU CAN USE BASE64 image here!!]) !important;
}
Note: image border like this one
Here is the sample image:
file scan.html
<ion-header>
<ion-navbar color="primary_dark">
<ion-title>scan</ion-title>
</ion-navbar>
</ion-header>
<ion-content>
</ion-content>
file scan.ts. add these functions to show and hide camera preview
private showCamera() {
((<any>window).document.querySelector('ion-app') as HTMLElement).classList.add('cameraView');
}
private hideCamera() {
((<any>window).document.querySelector('ion-app') as HTMLElement).classList.remove('cameraView');
}
And finally, call show, scan and preview camera like code below
this.showCamera();
this.qrScanner.show()
this.subScan = this.qrScanner.scan()
See issue on github here
Update your cordova-android.
I fixed this when updated to cordova android 10.1.0
cordova platform remove android
cordova platform add android#10.1.0
.ion-page{display:none important!}
I've been playing around with React Native, getting custom locations to work and setting the "NSLocationWhenInUseUsageDescription" key. The error, when running on the ios simulator, is this:
{
"code": 2,
"message": "Unable to retrieve location.",
"PERMISSION_DENIED": 1,
"POSITION_UNAVAILABLE": 2,
"TIMEOUT": 3
}
This is what I have, pretty much straight from the Geolocation example page https://facebook.github.io/react-native/docs/geolocation.html
/* eslint no-console: 0 */
'use strict';
var React = require('react');
var ReactNative = require('react-native');
var {
StyleSheet,
Text,
View,
} = ReactNative;
export default class GeolocationExample extends React.Component {
state = {
initialPosition: 'unknown'
};
componentDidMount() {
navigator.geolocation.getCurrentPosition(
(position) => {
var initialPosition = JSON.stringify(position);
this.setState({initialPosition});
},
(error) => alert(JSON.stringify(error)),
{enableHighAccuracy: true, timeout: 20000, maximumAge: 1000}
);
}
render() {
return (
<View>
<Text>
<Text style={styles.title}>Initial position: </Text>
{this.state.initialPosition}
</Text>
</View>
);
}
}
var styles = StyleSheet.create({
title: {
fontWeight: '500',
},
});
Any help would be appreciated!
You need to set the location in the Simulator. There is an option for that in simulator menus as described in this question: Set the location in iPhone Simulator
In Simulator navigator, Choose Debug, at bottom choose Location, next choose Apple, then CMD+R to reload and it worked.
As Santosh suggested, you need to set the location in the iOS Simulator: Debug > Location.
Keep in my mind that from time to time, you will get the "PERMISSION_DENIED " error even tho you set the location in the simulator. If this is happening, you need to select a different predefined location and then the error goes away.
Adding an update to Santosh's answer, please note that in my current version of simulator (11.4) the option to set location is found in:
Features -> Location
(Posting this as a new answer since I am not allowed to comment yet).
I was testing on a real device and it was giving the same error.
I just restarted my device and it started working. Anyone who is still facing the issue can give it a try.
So, for those who are still looking for the answer in Physical device
if you're using
import Geolocation from '#react-native-community/geolocation';
then
Geolocation.getCurrentPosition(
info => {console.log(info)},error=>{console.log(error)}});
if you don't handle the error it will throw error or make your app crash.
Now it's iOS Simulator: Features > Location.
I'm trying to use youtube component in my react-native app. But it keeps giving me an error "element type is invalid: expected a string or a class/function but got: object. Check the render method of xx"
I installed react-native-youtube and my package.json seems to be ok.
"dependencies": {
"react": "15.2.1",
"react-native": "0.30.0",
"react-native-tabbar-navigator": "^0.3.0",
"react-native-youtube": "^0.7.2"
}
}
And my Main.js code looks like the below.
import React, { Component } from 'react';
import {
StyleSheet,
Text,
TextInput,
View,
TouchableHighlight,
ActivityIndicator,
Image
} from 'react-native';
var YouTube = require('react-native-youtube');
Class Main extends Component {
render() {
return (
<View style={styles.container}>
<YouTube
ref="youtubePlayer"
videoId="KVZ-P-ZI6W4"
play={true}
hidden={false}
playsInline={true}
loop={false}
onReady={(e)=>{this.setState({isReady: true})}}
onChangeState={(e)=>{this.setState({status: e.state})}}
onChangeQuality={(e)=>{this.setState({quality: e.quality})}}
onError={(e)=>{this.setState({error: e.error})}}
onProgress={(e)=>{this.setState({currentTime: e.currentTime, duration: e.duration})}}
style={{alignSelf: 'stretch', height: 300, backgroundColor: 'black', marginVertical: 10}}/>
</View>
);
}
}
I really have no idea why this error happens. Please share any ideas you have!! (:
Best
Use import YouTube from 'react-native-youtube'; instead of var YouTube = require('react-native-youtube');
Also, you have Class in your code starting with uppercase instead of class
I'm facing a problem using this 2 PhoneGap plugins: "BarcodeScanner" & "ChildBrowser" (inside an iOS app, with XCode 4 & PhoneGap 2.0).
I've a button "Scan" on my app UI. When the user clic on this button, the barcode scanner is launched.
So, in the Success function of the barcode scanner callback, I need to open the recovered URL from the scan in a new Childbrowser window (inner the app).
But the new Childbrowser window is never been opened, while the console displays "Opening Url : http://fr.wikipedia.org/" (for example).
Here is my JS part of code:
$("#btnStartScan").click(function() {
var scanBarcode = window.plugins.barcodeScanner.scan(
function(result) {
if (!result.cancelled){
openUrl(result.text);
}
},
function(error) {
navigator.notification.alert("scanning failed: " + error);
});
});
function openUrl(url)
{
try {
var root = this;
var cb = window.plugins.childBrowser;
if(cb != null) {
cb.showWebPage(url);
}
else{
alert("childbrowser is null");
}
}
catch (err) {
alert(err);
}
}
And all works fine if I call my openURL() function inside a Confirm alert callback for example, like this:
if (!result.cancelled){
navigator.notification.confirm("Confirm?",
function (b) {
if (b === 1) {
openUrl(result.text);
}
},
'Test',
'Yes, No');
}
But I need to launch the ChildBrowser window directly after a scan, without any confirm alert etc.
Does anybody know how to solve this please?
I also have this same problem.
Solve it by set timeout.
var scanBarcode = window.plugins.barcodeScanner.scan(
function(result) {
if (!result.cancelled){
setTimeout(function(){ openUrl(result.text); },500);
}
},
function(error) {
navigator.notification.alert("scanning failed: " + error);
});
I'm running into the exact same problem.
My application also has another mechanism to show a webpage besides the barcode reader and when I do that action I can see that the barcode-related page HAD loaded, but it never was shown.
In ChildBrowserViewController.m, I'm looking at the last line of loadURL() which is webView.hidden = NO; and I'm thinking that the child browser is set visible after we barcode but something about the barcode reader window caused the child browser to get set to the wrong z-order, but I'm not familiar enough with the sdk to know how to test that or try to bring it to the front.
Hope this helps target a potential area.