[Solved] Android send sms in Dual SIM Phone

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Try the following method where simIndex is 0 for sim1 and 1 for sim2:

 public void sendSMS(final String number,final String text)
    {
        final PendingIntent localPendingIntent1 = PendingIntent.getBroadcast(mContext, 0, new Intent(this.SENT), 0);
        final PendingIntent localPendingIntent2 = PendingIntent.getBroadcast(mContext, 0, new Intent(this.DELIVERED), 0);

        if (Build.VERSION.SDK_INT >= 22)
        {

            SubscriptionManager subscriptionManager=((Activity)mContext).getSystemService(SubscriptionManager.class);
            SubscriptionInfo subscriptionInfo=subscriptionManager.getActiveSubscriptionInfoForSimSlotIndex(simIndex);
            SmsManager.getSmsManagerForSubscriptionId(subscriptionInfo.getSubscriptionId()).sendTextMessage(number, null, text, localPendingIntent1, localPendingIntent2);
        }
        SmsManager.getSmsManagerForSubscriptionId(subscriptionInfo.getSubscriptionId()).sendTextMessage(number, null, text, localPendingIntent1, localPendingIntent2);
    }

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solved Android send sms in Dual SIM Phone