以编程方式发送短信而无需打开消息应用

Question

到目前为止,我使用以下代码通过我的应用程序发送短信到另一部手机.

Intent intent = new Intent( Intent.ACTION_VIEW, Uri.parse( "sms:" + srcNumber)); 
                    intent.putExtra( "sms_body", message ); 
                    startActivity(intent);

但是,这会打开本机消息传递应用程序,从而将我的应用程序活动置于后台.是否可以直接发送短信而无需打开本机消息应用程序？如果有,怎么样？

Answer 1

您可以通过以下方式从您的应用程序发送消息:

public void sendSMS(String phoneNo, String msg) {
    try {      
        SmsManager smsManager = SmsManager.getDefault();
        smsManager.sendTextMessage(phoneNo, null, msg, null, null);    
        Toast.makeText(getApplicationContext(), "Message Sent",
              Toast.LENGTH_LONG).show();
    } catch (Exception ex) {
        Toast.makeText(getApplicationContext(),ex.getMessage().toString(),
              Toast.LENGTH_LONG).show();
        ex.printStackTrace();
    } 
}

您还需要授予发送消息的SEND_SMS权限AndroidManifest.xml

<uses-permission android:name="android.permission.SEND_SMS" />

Answer 2

public void sendLongSMS() {
    String phoneNumber = "0123456789";
    String message = "Hello World! Now we are going to demonstrate " + 
        "how to send a message with more than 160 characters from your Android application.";
    SmsManager smsManager = SmsManager.getDefault();
    ArrayList<String> parts = smsManager.divideMessage(message); 
    smsManager.sendMultipartTextMessage(phoneNumber, null, parts, null, null);
}

并且不要忘记添加

<uses-permission android:name="android.permission.SEND_SMS"/>

Answer 3

发送带有许可请求的短信：

附加清单：

<uses-permission android:name="android.permission.SEND_SMS" />

添加Java函数：

void sendSmsMsgFnc(String mblNumVar, String smsMsgVar)
{
    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.SEND_SMS) == PackageManager.PERMISSION_GRANTED)
    {
        try
        {
            SmsManager smsMgrVar = SmsManager.getDefault();
            smsMgrVar.sendTextMessage(mblNumVar, null, smsMsgVar, null, null);
            Toast.makeText(getApplicationContext(), "Message Sent",
                    Toast.LENGTH_LONG).show();
        }
        catch (Exception ErrVar)
        {
            Toast.makeText(getApplicationContext(),ErrVar.getMessage().toString(),
                    Toast.LENGTH_LONG).show();
            ErrVar.printStackTrace();
        }
    }
    else
    {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
        {
            requestPermissions(new String[]{Manifest.permission.SEND_SMS}, 10);
        }
    }

}

Answer 4

是的，找到我自己问题的答案:)

相同地使用以下代码：

 SmsManager sms = SmsManager.getDefault();
                     sms.sendTextMessage(srcNumber, null, message, null, null);

这要求在Android清单xml上声明以下权限。

  <uses-permission android:name="android.permission.SEND_SMS"/>

Answer 5

发送带有交货报告的短信的完整功能。

//sent sms
private void sendSMS(String phoneNumber, String message) {
    String SENT = "SMS_SENT";
    String DELIVERED = "SMS_DELIVERED";

    PendingIntent sentPI = PendingIntent.getBroadcast(this, 0, new Intent(SENT), 0);
    PendingIntent deliveredPI = PendingIntent.getBroadcast(this, 0, new Intent(DELIVERED), 0);

    // ---when the SMS has been sent---
    registerReceiver(new BroadcastReceiver() {
        @Override
        public void onReceive(Context arg0, Intent arg1) {

            switch (getResultCode()) {

                case Activity.RESULT_OK:

                    Toast.makeText(getBaseContext(), "SMS sent",
                            Toast.LENGTH_SHORT).show();
                    break;

                case SmsManager.RESULT_ERROR_GENERIC_FAILURE:

                    Toast.makeText(getBaseContext(), "Generic failure",
                            Toast.LENGTH_SHORT).show();
                    break;

                case SmsManager.RESULT_ERROR_NO_SERVICE:

                    Toast.makeText(getBaseContext(), "No service",
                            Toast.LENGTH_SHORT).show();
                    break;

                case SmsManager.RESULT_ERROR_NULL_PDU:

                    Toast.makeText(getBaseContext(), "Null PDU",
                            Toast.LENGTH_SHORT).show();
                    break;

                case SmsManager.RESULT_ERROR_RADIO_OFF:

                    Toast.makeText(getBaseContext(), "Radio off",
                            Toast.LENGTH_SHORT).show();
                    break;
            }
        }
    }, new IntentFilter(SENT));

    // ---when the SMS has been delivered---
    registerReceiver(new BroadcastReceiver() {
        @Override
        public void onReceive(Context arg0, Intent arg1) {

            switch (getResultCode()) {

                case Activity.RESULT_OK:

                    Toast.makeText(getBaseContext(), "SMS delivered",
                            Toast.LENGTH_SHORT).show();
                    break;

                case Activity.RESULT_CANCELED:

                    Toast.makeText(getBaseContext(), "SMS not delivered",
                            Toast.LENGTH_SHORT).show();
                    break;
            }
        }
    }, new IntentFilter(DELIVERED));

    SmsManager sms = SmsManager.getDefault();
    sms.sendTextMessage(phoneNumber, null, message, sentPI, deliveredPI);
}