How to send SMS in android?

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.

Mikeeeeee

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

android.permission.SEND_SMS

android.permission.SEND_SMS must be added to .pro file?

KroMignon

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

android.permission.SEND_SMS must be added to .pro file?

No, it must be added into the manifest (AndroidManifest.xml) ==> editing-manifest-files

Mikeeeeee

Void MainWindow::sendSMS is missing ")". Added so and still not working. What's right?

void MainWindow::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...";
        }
    });
}