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                                   Phone Call

We are discussing how to make phone call in android pro-grammatically. The simple steps create an application can be used phone call. You can used android Intent to make phone call by calling built-in phone call functionality of the android.

Intent-Object:- ACTION_CALL action call built in android
Device functionality.

Intent phoneIntent = new Intent(Intent.ACTION_CALL);

Show complete example:

package com.example.androidbignnerpopint;

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;

import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;

public class MainActivity extends Activity {
   Button b1;
  
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      b1=(Button)findViewById(R.id.button);
      call();
   }
  
   private void call() {
      Intent in=new Intent(Intent.ACTION_CALL,Uri.parse("0000000000"));
      try{
         startActivity(in);
      }
     
      catch (android.content.ActivityNotFoundException ex){
         Toast.makeText(getApplicationContext(),"Not found your Activity",Toast.LENGTH_SHORT).show();
      }
   }
  
   @Override
   public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.menu_main, menu);
      return true;
   }
  
   @Override
   public boolean onOptionsItemSelected(MenuItem item) {
      // Handle action bar item clicks here. The action bar will
      // automatically handle clicks on the Home/Up button, so long
      // as you specify a parent activity in AndroidManifest.xml.
     
      int id = item.getItemId();
     
      //noinspection SimplifiableIfStatement
      if (id == R.id.action_settings) {
         return true;
      }
      return super.onOptionsItemSelected(item);
   }
}

Main.xml

<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:paddingLeft="@dimen/activity_horizontal_margin"
   android:paddingRight="@dimen/activity_horizontal_margin"
   android:paddingTop="@dimen/activity_vertical_margin"
   android:paddingBottom="@dimen/activity_vertical_margin"
   tools:context=".MainActivity">
  
   <TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Androidbignnerpoint Phone Call Example"
      android:id="@+id/textView"
      android:gravity="center"
      android:layout_alignParentTop="true"
      android:layout_centerHorizontal="true"
      android:textSize="20dp" />

   <TextView
       android:id="@+id/textView1"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_below="@+id/textView"
       android:layout_centerHorizontal="true"
       android:layout_marginTop="52dp"
       android:text="08976357623" />

   <Button
       android:id="@+id/button1"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_below="@+id/textView1"
       android:layout_centerHorizontal="true"
       android:layout_marginTop="132dp"
       android:text="Call" />

</RelativeLayout>


But don’t forget given permission in androidmanifest.xml class.


<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
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                                     Alert Dialog

The alert dialog create easily, we are discuss about alert Dialog popup window. The alert dialog used basically two button Yes or NO.

     The used some method type discussing:-

·       setTitle(): -set  title be appear in the dialog.

·       setIcon():- set the icon in alert dialog.

·       setOnclicklistener():-  call back (click event) Mathod in dialog.

·       setMessage():-set message display in the alert dialog.

 

       AlertDialog alertDialog = new AlertDialog.Builder(
                        AlertDialogActivity.this).create();

        // Setting Dialog Title
        alertDialog.setTitle("Confirm Delete...");

        // Setting Dialog Message
        alertDialog.setMessage("Are you sure you want delete this?");

        // Setting Icon to Dialog
        alertDialog.setIcon(R.drawable.alert);

        // Setting OK Button
        alertDialog.setButton("Yes", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                // Write your code here to execute after dialog closed
                Toast.makeText(getApplicationContext(), "You clicked on OK",                      Toast.LENGTH_SHORT).show();
                }
        });
         // Setting Negative "NO" Button
        alertDialog.setNegativeButton("NO", new DialogInterface.OnClickListener()         {
            public void onClick(DialogInterface dialog, int which) {
            // Write your code here to invoke NO event
            Toast.makeText(getApplicationContext(), "You clicked on NO",                     Toast.LENGTH_SHORT).show();
            dialog.cancel();
            }
        });


        // Showing Alert Message

        alertDialog.show();









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                                              SMS SENDING TUTORIAL

  Android, you can use SmsManager  or devices Built-in SMS application to send text. In this tutorial, basic examples to send SMS message −

 
SmsManager smsManager = SmsManager.getDefault();
smsManager.sendTextMessage("phoneNo", null, "your text", null, null);

following example show how to used SmsManager;

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.Androidbeginnerpoint"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="18" />
    <uses-permission android:name="android.permission.SEND_SMS" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.Androidbeginnerpoint.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

actvity_main.xml

<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="MainActivity">

   <TextView
      android:id="@+id/textView1"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="SEND SMS"
      android:layout_alignParentTop="true"
      android:layout_centerHorizontal="true"
      android:textSize="30dp" />

   <EditText
       android:id="@+id/editText2"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_alignEnd="@+id/imageButton"
       android:layout_alignLeft="@+id/editText"
       android:layout_alignRight="@+id/editText"
       android:layout_alignStart="@+id/editText"
       android:layout_below="@+id/editText"
       android:hint="Enter SMS"
        />

   <Button
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Send Sms"
      android:id="@+id/btnSendSMS"
      android:layout_below="@+id/editText2"
      android:layout_centerHorizontal="true"
      android:layout_marginTop="48dp" />

   <EditText
       android:id="@+id/editText"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_below="@+id/textView1"
       android:layout_centerHorizontal="true"
       android:ems="10"
       android:hint="Enter Phone Number"
       android:phoneNumber="true"
       android:layout_marginTop="100dp"
        >

       <requestFocus />
   </EditText>

</RelativeLayout>



MainActivity.java

package com.example.Androidbeginnerpoint;

import android.os.Bundle;
import android.app.Activity;
import android.telephony.SmsManager;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {
   Button sendBtn;
   EditText txtphoneNo;
   EditText txtMessage;
  
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);

      sendBtn = (Button) findViewById(R.id.btnSendSMS);
      txtphoneNo = (EditText) findViewById(R.id.editText);
      txtMessage = (EditText) findViewById(R.id.editText2);

      sendBtn.setOnClickListener(new View.OnClickListener() {
         public void onClick(View view) {
            sendSMSMessage();
         }
      });
   }
   protected void sendSMSMessage() {
      Log.i("Send SMS", "");
      String phoneNo = txtphoneNo.getText().toString();
      String message = txtMessage.getText().toString();
     
      try {
         SmsManager smsManager = SmsManager.getDefault();
         smsManager.sendTextMessage(phoneNo, null, message, null, null);
         Toast.makeText(getApplicationContext(), "SMS sent.", Toast.LENGTH_LONG).show();
      }
     
      catch (Exception e) {
         Toast.makeText(getApplicationContext(), "SMS faild, please try again.", Toast.LENGTH_LONG).show();
         e.printStackTrace();
      }
   }
  
   @Override
   public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.main, menu);
      return true;
   }
}



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