How to send SMS in android?

kuzulis

Use Qt Android Extras helpers. Also you can read about here (from first to last episode).

Shrinidhi Upadhyaya

@Mikeeeeee , you can write a java class which contains the function to send the sms, and after that you can use the QtAndroid and QAndroidJniEnvironment in your cpp class and call the function defined in your java class.
Something like this:-

QtAndroid::androidActivity().callMethod<void>("sendSMS");

I had used "textLocal" (sms platform) in a project i was working on and it worked really nice, so they have few API's which you can make use of.If you want the code for that please have a look at this[http://api.textlocal.in/docs/sendsms].

For more information about QtAndroid[https://doc.qt.io/qt-5/qtandroid.html] and QAndroidJniEnvironment[https://doc.qt.io/qt-5/qandroidjnienvironment.html]

Mikeeeeee

If I add QT + = androidextras, I get an error: Unknown module (s) in QT: androidextras

Shrinidhi Upadhyaya

Hi @Mikeeeeee , you need to add like this:-

android: QT += androidextras

Mikeeeeee

In .pro the file was compiled. If I add #include <Qt Android Extras> I get errors: 'QtAndroidExtras' file not found , QtAndroidExtras: No such file or directory
#include <QtAndroidExtras>

SGaist

Might be a silly question but are you building that with your Qt Android kit ?

Mikeeeeee

MinGW does not compile, Clang compiles. Thanks.

SGaist

That has nothing to do with your error. You were using a Qt build that was not for Android, likely your desktop build.

MinGW is unrelated to the Qt Android version. The compiler is provided by the Android NDK.

Mikeeeeee

How to call a method in Qt from java SmsManager::createAppSpecificSmsTokenWithPackageinfo(String prefixes, PendingIntent intent)

jsulm

@Mikeeeeee Take a look at https://doc.qt.io/qt-5/qandroidjniobject.html

Mikeeeeee

Will this option work, or should we do it differently?

    QAndroidJniObject testSms;
    testSms.callMethod< jint > ("createAppSpecificSmsTokenWithPackageInfo(32133)");

Pablo J. Rogina

@Mikeeeeee said in How to send SMS in android?:

Will this option work

Have you already tried? Trial and error is a way to learn...

Mikeeeeee

It doesn't work. How can this be fixed to work?

JonB

@Mikeeeeee

    QAndroidJniObject testSms;
    testSms.callMethod< jint > ("createAppSpecificSmsTokenWithPackageInfo(32133)");

With the warning that I know absolutely nothing about this:

You are using the overload https://doc.qt.io/qt-5/qandroidjniobject.html#callMethod, callMethod(const char *methodName). It may well be that methodName has to be a method name, "createAppSpecificSmsTokenWithPackageInfo(32133)" is a full function call. You may have to use overload https://doc.qt.io/qt-5/qandroidjniobject.html#callMethod-1, callMethod(const char *methodName, const char *sig, ...), and specify the function signature and pass 32133 as parameter, in order to call functions with parameters?

Have you/can you test if you can call a method which does not take any parameters, does that work OK?

Mikeeeeee

The SmsManager class has a getcarrierconfigvalues() function without an argument.
This code also generates an error:

    QAndroidJniObject testSms;
    testSms.callMethod< jint > ("getCarrierConfigValues()");

jsulm

@Mikeeeeee said in How to send SMS in android?:

generates an error

Please post the error

Mikeeeeee

"org.qt project.example.smsTest" crashed.

jsulm

@Mikeeeeee Does it crash when

testSms.callMethod< jint > ("getCarrierConfigValues()");

is executed?
Also consider that some APIs require your app to request access rights from the user.

KroMignon

@Mikeeeeee If you remove all the "SMS sending" stuff from your source code, does it compile and can you start it on your device (or emulator) ?

KroMignon

@Mikeeeeee When you have a working Qt Android App, adding SMS sending support is not that compilcated.

ensure Android Extras are enabled (in pro file, add android: QT += androidextras)
ensure you have add required permission in AndroidManifest.xml (android.permission.SEND_SMS )
Add following code to the class you want to use to send SMS, for example JniHandler:

#include <QtAndroid>
#include <QAndroidJniObject>
#include <QtAndroidExtras/QAndroidJniObject>
#include <QtAndroidExtras/QAndroidJniEnvironment>
#include <jni.h>
...

void JniHandler::sendSMS(const QString& phoneNumber, const QString& message)
{
    QtAndroid::runOnAndroidThreadSync([phoneNumber, message]  {
        // get the Qt android activity
        QAndroidJniObject activity = QtAndroid::androidActivity();
        if (activity.isValid()){
            // get the default SmsManager
            QAndroidJniObject mySmsManager = QAndroidJniObject::callStaticObjectMethod("android/telephony/SmsManager",
                                                                                       "getDefault",
                                                                                       "()Landroid/telephony/SmsManager;" );
            // get phone number & text from UI and convert to Java String
            QAndroidJniObject myPhoneNumber = QAndroidJniObject::fromString(phoneNumber);
            QAndroidJniObject myTextMessage = QAndroidJniObject::fromString(message);
            QAndroidJniObject scAddress = NULL;
            QAndroidJniObject sentIntent = NULL;
            QAndroidJniObject deliveryIntent = NULL;
        
            // call the java function:
            // public void SmsManager.sendTextMessage(String destinationAddress,
            //                                        String scAddress, String text,
            //                                        PendingIntent sentIntent, PendingIntent deliveryIntent)
            // see: http://developer.android.com/reference/android/telephony/SmsManager.html
        
            mySmsManager.callMethod<void>("sendTextMessage",
                                          "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Landroid/app/PendingIntent;Landroid/app/PendingIntent;)V",
                                           myPhoneNumber.object<jstring>(),
                                           scAddress.object<jstring>(),
                                           myTextMessage.object<jstring>(), NULL, NULL );
        
              }
        else {
            qDebug() << "Something wrong with Qt activity...";
        }
    }
}

This should do the job.