I am creating a sms forwarding app and and I am having a problem with my SmsListener class.
package sms.pack;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Environment;
import android.telephony.SmsMessage;
import android.util.Log;
public class SmsListener extends BroadcastReceiver{
private SharedPreferences preferences;
@Override
public void onReceive(Context context, Intent intent) {
if(intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED")){
Bundle bundle = intent.getExtras(); //---get the SMS message passed in---
SmsMessage[] msgs = null;
String device = "15555215556";
String msg_from;
if (bundle != null){
//---retrieve the SMS message received---
try{
Object[] pdus = (Object[]) bundle.get("pdus");
msgs = new SmsMessage[pdus.length];
for(int i=0; i<msgs.length; i++){
msgs[i] = SmsMessage.createFromPdu((byte[])pdus[i]);
msg_from = msgs[i].getOriginatingAddress();
String msgBody = msgs[i].getMessageBody();
if (msg_from == device)
{
savedata(msgBody);
}
}
}catch(Exception e){
// Log.d("Exception caught",e.getMessage());
}
}
}
}
public void savedata(String data)
{
try {
File root = Environment.getExternalStorageDirectory();
if (root.canWrite()){
File gpxfile = new File(root, "smsfile.txt");
FileWriter gpxwriter = new FileWriter(gpxfile);
BufferedWriter out = new BufferedWriter(gpxwriter);
out.write(data);
out.close();
}
} catch (IOException e) {
Log.e(data,"Could not write file " + e.getMessage());
}
}
}
my activity class
package sms.pack;
import java.util.List;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.ComponentName;
import android.content.Intent;
import android.content.pm.ResolveInfo;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;
public class SMS_forwardActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
public void openInbox() {
String application_name = "com.android.mms";
try {
Intent intent = new Intent("android.intent.action.MAIN");
intent.addCategory("android.intent.category.LAUNCHER");
intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
List<ResolveInfo> resolveinfo_list = this.getPackageManager()
.queryIntentActivities(intent, 0);
for (ResolveInfo info : resolveinfo_list) {
if (info.activityInfo.packageName
.equalsIgnoreCase(application_name)) {
launchComponent(info.activityInfo.packageName,
info.activityInfo.name);
break;
}
}
} catch (ActivityNotFoundException e) {
Toast.makeText(
this.getApplicationContext(),
"There was a problem loading the application: "
+ application_name, Toast.LENGTH_SHORT).show();
}
}
private void launchComponent(String packageName, String name) {
Intent launch_intent = new Intent("android.intent.action.MAIN");
launch_intent.addCategory("android.intent.category.LAUNCHER");
launch_intent.setComponent(new ComponentName(packageName, name));
launch_intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
this.startActivity(launch_intent);
}
public void startListening(View view)
{
Intent i = new Intent();
i.setClassName("sms.pack","sms.pack.SmsListener");
sendBroadcast(i);
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello" />
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Listen"
android:onClick="startListening"/>
</LinearLayout>
manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="sms.pack"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="10" />
<uses-permission android:name="android.permission.RECEIVE_SMS" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:label="@string/app_name"
android:name=".SMS_forwardActivity" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".listener.SmsListener">
<intent-filter>
<action android:name="android.provider.Telephony.SMS_RECEIVED" />
</intent-filter>
</receiver>
</application>
</manifest>
At the monent Activity class has a button that call the statListening class, which in turn starts the SmsListener class, which listens for a sms messsage to come from a certain number then saves the contents of the message to the SD card.
When I ran the project and clicked Listen, then sent the SMS from another VM phone, I found that there was no saved file in the SD card. So I decided to run the debug
When in debug mode I click the Listen button, then I send the message and I get an error in the debug
ActivityThread.handleReceiver(ActivityThread$handleReceiver)line1773
I can't figure out what is wrong with the code
specify the permissions in android manifest file as follows
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" >
</uses-permission>
and also specify priority for the listener so that the sms will be recieved to your app
<receiver android:name=".SmsReceiver" >
<intent-filter android:priority="50" >
<action
android:name="android.provider.Telephony.SMS_RECEIVED"
android:enabled="true" />
</intent-filter>
</receiver>