Senden einer SMS über Android

group 'uk.co.placona'
version '1.0-SNAPSHOT'

buildscript {
    repositories { jcenter() }
    dependencies {
        classpath 'com.github.jengelman.gradle.plugins:shadow:1.2.3'
    }
}

apply plugin: 'java'
apply plugin: 'application'
apply plugin: 'com.github.johnrengelman.shadow'

sourceCompatibility = 1.8
mainClassName = 'SMSBackend'

repositories {
    mavenCentral()
}

dependencies {
    testCompile group: 'junit', name: 'junit', version: '4.11'
    compile 'com.sparkjava:spark-core:2.6.0'
    compile group: 'com.twilio.sdk', name: 'twilio', version: '7.9.0'
    compile 'org.slf4j:slf4j-simple:1.6.1'
}

import static spark.Spark.*;

public class SMSBackend {
   public static void main(String[] args) {
       get("/", (req, res) -> "Hello, World!");
   }
}

ngrok http 4567

import com.twilio.http.TwilioRestClient;
import com.twilio.rest.api.v2010.account.Message;
import com.twilio.rest.api.v2010.account.MessageCreator;
import com.twilio.type.PhoneNumber;
import spark.Spark;

import static spark.Spark.get;
import static spark.Spark.post;

public class SMSBackend {
   public static void main(String[] args) {
       get("/", (req, res) -> "Hello, World");

        TwilioRestClient client = new TwilioRestClient.Builder(System.getenv("TWILIO_ACCOUNT_SID"), System.getenv("TWILIO_AUTH_TOKEN")).build();

        post("/sms", (req, res) -> {
            String body = req.queryParams("Body");
            String to = req.queryParams("To");
            String from = YOUR_TWILIO_PHONE_NUMBER;

            Message message = new MessageCreator(
                    new PhoneNumber(to),
                    new PhoneNumber(from),
                    body).create(client);

            return message.getSid();
        });
   }
}

dependencies {
   compile fileTree(dir: 'libs', include: ['*.jar'])
   testCompile 'junit:junit:4.12'
   compile 'com.android.support:appcompat-v7:23.3.0'
   compile 'com.squareup.okhttp3:okhttp:3.2.0'
}

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
   package="uk.co.placona.twiliosms">

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

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:tools="http://schemas.android.com/tools"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:paddingBottom="@dimen/activity_vertical_margin"
   android:paddingLeft="@dimen/activity_horizontal_margin"
   android:paddingRight="@dimen/activity_horizontal_margin"
   android:paddingTop="@dimen/activity_vertical_margin"
   tools:context="uk.co.placona.twiliosms.MainActivity">

   <TextView
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="Phone Number"
       android:id="@ id/textView"
       android:layout_alignParentTop="true"
       android:layout_alignParentLeft="true"
       android:layout_alignParentStart="true" />

   <EditText
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:id="@ id/txtNumber"
       android:hint=" 44 12345 67890"
       android:layout_below="@ id/textView"
       android:layout_alignParentLeft="true"
       android:layout_alignParentStart="true"
       android:layout_alignParentRight="true"
       android:layout_alignParentEnd="true" />

   <TextView
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="Message"
       android:id="@ id/textView2"
       android:layout_below="@ id/txtNumber"
       android:layout_alignParentLeft="true"
       android:layout_alignParentStart="true" />

   <EditText
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:inputType="textMultiLine"
       android:ems="10"
       android:id="@ id/txtMessage"
       android:layout_below="@ id/textView2"
       android:layout_alignParentLeft="true"
       android:layout_alignParentStart="true"
       android:layout_alignRight="@ id/txtNumber"
       android:layout_alignEnd="@ id/txtNumber" />

   <Button
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="Send"
       android:id="@ id/btnSend"
       android:layout_centerVertical="true"
       android:layout_alignRight="@ id/txtMessage"
       android:layout_alignEnd="@ id/txtMessage" />

</RelativeLayout>

package uk.co.placona.twiliosms;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import java.io.IOException;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

public class MainActivity extends AppCompatActivity {

private EditText mTo;
private EditText mBody;
private Button mSend;
private OkHttpClient mClient = new OkHttpClient();
private Context mContext;

@Override
protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_main);

   mTo = (EditText) findViewById(R.id.txtNumber);
   mBody = (EditText) findViewById(R.id.txtMessage);
   mSend = (Button) findViewById(R.id.btnSend);
   mContext = getApplicationContext();
}

Call post(String url, Callback callback) throws IOException{
    RequestBody formBody = new FormBody.Builder()
            .add("To", mTo.getText().toString())
            .add("Body", mBody.getText().toString())
            .build();
    Request request = new Request.Builder()
            .url(url)
            .post(formBody)
            .build();
Call response = mClient.newCall(request);
    response.enqueue(callback);
    return response;
}

mSend.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        try {
            post(mContext.getString("YOUR_NGROK_URL/sms"), new  Callback(){

                @Override
                public void onFailure(Call call, IOException e) {
                    e.printStackTrace();
                }

                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            mTo.setText("");
                            mBody.setText("");
                            Toast.makeText(getApplicationContext(),"SMS Sent!",Toast.LENGTH_SHORT).show();
                        }
                    });
                }
            });
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
});