Pramod P Deore

Pramod P Deore wrote:Hello everybody, In my application I want to send sms, but the application must have to run in the background. It send the sms but it is not run in the background. I have following code.

//Background.java
  package com.micro; import android.app.Activity; import android.content.Intent; import android.os.Bundle; public class Background extends Activity {    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);                startService(new Intent(this, MyService.class));    } }

My Service class look like this

//MyService.java
  package com.micro; import android.app.Activity; import android.app.PendingIntent; import android.app.Service; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.media.MediaPlayer; import android.os.IBinder; import android.telephony.gsm.SmsManager; import android.util.Log; import android.widget.Toast; public class MyService extends Service { @Override public IBinder onBind(Intent intent) { return null; } @Override public void onCreate() { sendSMS("9960XXXXXX","Pramod Deore"); }   @Override public void onDestroy() { } @Override public void onStart(Intent intent, int startid) { } public  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(){                      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()        {                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);            }       }

//AndroidManifest.xml

[<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"      package="com.micro"      android:versionCode="1"      android:versionName="1.0">    <application android:icon="@drawable/icon" android:label="@string/app_name">        <activity android:name=".Background"                  android:label="@string/app_name">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity> <service android:enabled="true" android:name=".MyService" />    </application>    <uses-sdk android:minSdkVersion="3" />         <uses-permission android:name="android.permission.SEND_SMS">    </uses-permission>        <uses-permission android:name="android.permission.RECEIVE_SMS">    </uses-permission> </manifest>

But when I run it It is not running in the background.

Thanks

new Thread(new Runnable() { public void run() { progressBar.setVisibility(View.INVISIBLE); } }).start();

Use external libraray like AchatEngine,MPAndroid chart.... there are many more which can be used

They are printing but output is too large therefore it override previous output and start displaying from 1712 !2156|

make sure you had added permission
<uses-permission android:name="android.permission.CALL_PHONE"></uses-permission>

Hi Welcome to javaranch, can you show us your code.

The size of a reference isn't well defined, but it is typically 4 bytes on a 32-bit system and 8 bytes on a 64-bit system.

A reference variable "obj" contains an address, or a reference to an address (similar to pointer variables in C++). A reference variable provides direct access to this memory address.

Your life is message to the world, make sure it is inspiring.

You can't restart a thread

In case 2nd of your example you can add validation of setter method so another programmer can't set any value that can be create problem in future for your code. But suupose you can't use getter and setter method to set variable value as in case 1 of your code then any value directly assign to your variable. So it is better to use private for variables and public for getter and setter methods.

Thanks Henry and Jeff now I got it.

.Now my query is that can Map accept duplicate keys that is ok ...but does it accept duplicate keys with duplicate values..can you advise me in which case the map throws the error if we play with Map...!!

Yes it accept duplicate keys with duplicate values.By definition, the put command replaces the previous value associated with the given key in the map.

Hi Darryl thanks for reply, But I couldn't get it, will you please explain it. Thanks

Local Inner class Cannot refer to a non-final variable inside an inner class defined in a method. Because A local variable, exists only during the method invocation. Means there scope is limited to that particular method. Now when I changed to it as final there scope also changes? Means local variables are stored on stack. and if I declared local variables as final now they are stored on Heap? What is the scope of final local variables?