I want to send sms to a particular phone number in my flutter application. I tried all flutter packages regarding this issue and github repos but I screw up and did not find any useful source.
Here's my last attempt code.
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:sms/sms.dart';
void main() {
runApp(new MaterialApp(
title: "Send sms Demo",
home: new SendSms(),
));
}
class SendSms extends StatefulWidget {
#override
_SendSmsState createState() => new _SendSmsState();
}
class _SendSmsState extends State<SendSms> {
Future<Null> sendSms()async {
SmsSender smsSender = new SmsSender();
smsSender.sendSms(new SmsMessage('+*****7337544', 'test send sms')); //instead xxx... to receiver
phone
}
#override
Widget build(BuildContext context) {
return new Material(
child: new Container(
alignment: Alignment.center,
child: new FlatButton(onPressed: () => sendSms(), child: const Text("Click here to Send SMS")),
),
);
}
}
And I put this in AndroidManifest.xml
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.SEND_SMS"/>
I’ve recently uploaded a sample project on Github that make use of the telephony package, which request for SEND_SMS permissions and dispatch SMS.
Here is the repo
In this sample you have to fire the message with a button, but you can do it automatically if you want to.
Related
I list all pptx files from storage now I want to display these files inside my app using a file path. I used different packages like power file view, flutter file reader. but engine load failed all time so i need a material related opening pptx files inside my flutter app
Add this in your pubspec.yaml
pdftron_flutter:
git:
url: git://github.com/PDFTron/pdftron-flutter.git
main.dart
import 'package:flutter/material.dart';
import 'dart:async';
import 'package:flutter/services.dart';
import 'package:pdftron_flutter/pdftron_flutter.dart';
void main() => runApp(MyApp());
class MyApp extends StatefulWidget {
#override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
String _version = 'Unknown';
#override
void initState() {
super.initState();
initPlatformState();
PdftronFlutter.openDocument("https://pdftron.s3.amazonaws.com/downloads/pdfref.pdf");
}
// Platform messages are asynchronous, so we initialize via an async method.
Future<void> initPlatformState() async {
String version;
// Platform messages may fail, so we use a try/catch PlatformException.
try {
PdftronFlutter.initialize();
version = await PdftronFlutter.version;
} on PlatformException {
version = 'Failed to get platform version.';
}
// If the widget was removed from the tree while the asynchronous platform
// message was in flight, we want to discard the reply rather than calling
// setState to update our non-existent appearance.
if (!mounted) return;
setState(() {
_version = version;
});
}
#override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('PDFTron flutter app'),
),
body: Center(
child: Text('Running on: $_version\n'),
),
),
);
}
}
For more help read this blog
A flutter newbie, I'm trying to get my app to take values from a local json file and render them on-screen.
The logic isn't waiting for the class constructor to populate the relevant string variable before rendering the app on screen.
Here's the code that illustrates my problem.
First, my main.dart file:
import 'dart:io';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'sampleDataClass.dart';
import 'package:provider/provider.dart';
String assetFilePath = 'assets/basicData.json';
void main() async {
WidgetsFlutterBinding.ensureInitialized();
FlutterError.onError = (details) {
FlutterError.presentError(details);
if (kReleaseMode) exit(1);
};
runApp(const MyApp());
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
#override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
#override
Widget build(BuildContext context) {
return ChangeNotifierProvider(
create: (context) => MyAppState(),
child: const MaterialApp(
title: "Sample screen",
home: MyHomePage(),
)
);
}
}
class MyAppState extends ChangeNotifier {
SampleDataClass current = SampleDataClass(assetFilePath);
}
class MyHomePage extends StatelessWidget {
const MyHomePage({super.key});
#override
Widget build(BuildContext context) {
var myAppState = context.watch<MyAppState>();
var myAppBasicData = myAppState.current;
return Scaffold(
appBar: AppBar(
backgroundColor: Colors.indigo,
foregroundColor: Colors.amberAccent,
title: const Text("This is the App Bar"),
elevation: 10,
),
body: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(children: [
Expanded(
child: Container(
color: Colors.blueGrey,
padding: const EdgeInsets.all(10),
child: (
Text(myAppBasicData.language,
style: const TextStyle(
color: Colors.white,
))))),
]),
]
),
);
}
}
Here is my SampleDataClass.dart file:
import 'dart:core';
import 'dart:convert';
import 'package:flutter/services.dart' show rootBundle;
class SampleDataClass {
String classFilePath = "";
String language = "not populated";
String batteryName = "not populated";
SampleDataClass(filePath) {
rootBundle.loadString(filePath).then((jsonDataString) {
Map classDataMap = jsonDecode(jsonDataString);
language = classDataMap['language'];
print(language);
batteryName = classDataMap['batteryName'];
print(batteryName);
});
}
Map<String, dynamic> toJson() => {
'language': language,
'batteryName': batteryName,
};
}
And here's my pubspec.yaml file:
name: samples
description: A new Flutter project.
environment:
sdk: '>=2.18.6 <3.0.0'
flutter:
sdk: flutter
cupertino_icons: ^1.0.2
provider: ^4.1.1
dev_dependencies:
flutter_test:
sdk: flutter
flutter_lints: ^2.0.0
flutter:
uses-material-design: true
assets:
- assets/basicData.json
Finally, my basicData.json file looks like this:
{
"language": "English",
"batteryName": "Exercise 32"
}
The print statements in the sampleDataClass class work fine but as you can see if you run the code (from the command line using "flutter run --no-sound-null-safety"), the app renders the initial values of the variables before the class constructor assigns the json values to them.
What I expected was the class constructor to complete writing the relevant json values to the class members before handing back the class instance to the build widget in main.dart to render the app on-screen.
I realise that this is a very elementary question, but it is a key pending learning task for me!
Thank you all very much in advance!
it looks like rootBundle is an async function, you have to wait till it finishes then you notify the UI to render with new data,
How to handle this :
you should have 3 states loading state , error state , loaded state ,
create an init(path) function in SampleDataClass class that returns SampleDataClass instance.
Also, in the init() function at the beginning you have to change the state to loading state then when you get the data you set the state to loaded state, then notify listeners this will help the screen to know which state the page is in.
in the screen , call didChangeDependencies() and inside it, call your Provider => init function ( current = contecxt.read<YPUR_PROVIDER>().init(path); )
therefore the current object is being initialized, the page is showing a loader, and once the initialization is done, the provider will notify the page and it will change the loading view to the loaded view (your current view).
Another Tip::
your app will close whenever there is an error, it is not a good practice, since flutter will through non-fatal exception
FlutterError.onError = (details) {
FlutterError.presentError(details);
if (kReleaseMode) exit(1);
There is a choice of two excellent solutions to my problem with very little effort and no need for any change management (yet).
Indeed, so similar is the problem described that I probably should have found it before I posted this query here. As a newbie in this discipline, I clearly didn't conduct my search with the appropriate key words; for that I apologise!
Thanks very much to everyone for your patience.
The two solution options (which even I was able to follow) can be found here:
Calling an async method from a constructor in Dart
I am trying to get a CardField from the flutter_stripe package to appear on web. Simply with this code, a card field will display on ios and android. Though once I run on the app on Chrome, a blank line appears with the error, "Bad state: Source maps are not done loading".
I have the flutter_stripe and flutter_stripe_web package both installed and I cannot seem to figure this out. Any advice would be appreciated!
import 'package:flutter/material.dart';
import 'package:flutter_stripe/flutter_stripe.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
#override
MyAppState createState() => MyAppState();
}
class MyAppState extends State<MyApp> {
CardFieldInputDetails? _card;
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Test',
home: Scaffold(
body: Column(
children: [
CardField(
cursorColor: Colors.black,
enablePostalCode: true,
countryCode: 'US',
postalCodeHintText: 'Enter the us postal code',
onCardChanged: (card) {
setState(() {
_card = card;
});
},
),
],
),
),
);
}
}
ios image
web image
Turns out I just needed to include Stripe.publishableKey = 'your publishable key' inside main()!
The flutter_stripe project only has limited, experimental support for the web right now. The maintainers recommend you use Stripe Checkout instead.
If you really want to get the CardField working on the web I was going to suggest you post an issue to the flutter_stripe repo, but it looks like you've already done so.
I have a login screen which uses phone authentication for creating account.
I have used Firebase Phone auth for login and also have stored one number for testing purpose.
But don't know how to pass the number and OTP to generate Pre Launch Report.
They are asking for Username, Username Resource ID, Password , Password Resource ID.
Where to find Resource ID for username and password fields in flutter code.
In the Google play console at the bottom of the left
Click on App content
Click on App access
Click on manage
Click on add new instructions
Add your all details here it should be test accounts
Try this :
dependencies:
flutter_runtime_env: ^0.0.4
Example:
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter_runtime_env/flutter_runtime_env.dart';
void main() => runApp(MyApp());
class MyApp extends StatefulWidget {
#override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
bool _isInFirebaseTestLab = false;
#override
void initState() {
super.initState();
initPlatformState();
}
// Platform messages are asynchronous, so we initialize in an async method.
Future<void> initPlatformState() async {
var result = await inFirebaseTestLab();
setState(() {
_isInFirebaseTestLab = result;
});
}
#override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('is in FirebaseTest Lab'),
),
body: Center(
child: Text('is in FirebaseTest Lab: $_isInFirebaseTestLab\n'),
),
),
);
}
}
I am using package of location and google maps flutter in my screen and I want to detect wether user using fake gps or not.. Is there a package that can detect mock location in flutter that available in android and ios? I have tried using TrustFall package but my app always close unexpectedly.. is there another way to detect mock location in flutter?
Use Geolocator and check the Position object's isMocked property.
you can use TrustLocation
permissions:
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
usage :
import 'package:trust_location/trust_location.dart';
/* Assuming in an async function */
/// query the current location.
LatLongPosition position = await TrustLocation.getLatLong;
/// check mock location on Android device.
bool isMockLocation = await TrustLocation.isMockLocation;
using steam:
// input seconds into parameter for getting location with repeating by timer.
// this example set to 5 seconds.
TrustLocation.start(5);
/// the stream getter where others can listen to.
TrustLocation.onChange.listen((values) =>
print('${values.latitude} ${values.longitude} ${values.isMockLocation}')
);
/// stop repeating by timer
TrustLocation.stop();
Example:
import 'package:flutter/material.dart';
import 'dart:async';
import 'package:flutter/services.dart';
import 'package:trust_location/trust_location.dart';
import 'package:location_permissions/location_permissions.dart';
void main() => runApp(MyApp());
class MyApp extends StatefulWidget {
#override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
String _latitude;
String _longitude;
bool _isMockLocation;
/// initialize state.
#override
void initState() {
super.initState();
requestLocationPermission();
// input seconds into parameter for getting location with repeating by timer.
// this example set to 5 seconds.
TrustLocation.start(5);
getLocation();
}
/// get location method, use a try/catch PlatformException.
Future<void> getLocation() async {
try {
TrustLocation.onChange.listen((values) => setState(() {
_latitude = values.latitude;
_longitude = values.longitude;
_isMockLocation = values.isMockLocation;
}));
} on PlatformException catch (e) {
print('PlatformException $e');
}
}
/// request location permission at runtime.
void requestLocationPermission() async {
PermissionStatus permission =
await LocationPermissions().requestPermissions();
print('permissions: $permission');
}
#override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Trust Location Plugin'),
),
body: Padding(
padding: const EdgeInsets.all(20.0),
child: Center(
child: Column(
children: <Widget>[
Text('Mock Location: $_isMockLocation'),
Text('Latitude: $_latitude, Longitude: $_longitude'),
],
)),
),
),
);
}
}
for more information you can see https://pub.dev/packages/trust_location
github link : https://github.com/wongpiwat/trust-location
I think better to use safe_device. It's working on both Android and IOS