Making Phone Call Example in Android

main.xml

<?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" >

        <EditText
            android:id="@+id/number_edit_text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentTop="true"
            android:layout_marginLeft="35dp"
            android:layout_marginTop="16dp"
            android:ems="10"
            android:inputType="phone" />

        <Button
            android:id="@+id/call_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/number_edit_text"
            android:layout_marginLeft="72dp"
            android:layout_marginTop="36dp"
            android:text="Make Call" />

    </RelativeLayout>

 MainActivity.java

 package com.rajeshvijayakumar.android;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends Activity {

    private Button mCallbutton;
    private EditText mNumberEditText;

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mNumberEditText = (EditText) findViewById(R.id.number_edit_text);
        mCallbutton = (Button) findViewById(R.id.call_button);

        PhoneCallListener phoneListener = new PhoneCallListener();
        TelephonyManager telephonyManager = (TelephonyManager) this
                .getSystemService(Context.TELEPHONY_SERVICE);
        telephonyManager.listen(phoneListener,
                PhoneStateListener.LISTEN_CALL_STATE);

        // add button listener
        mCallbutton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {

                Intent callIntent = new Intent(Intent.ACTION_CALL);
                callIntent.setData(Uri.parse("tel:"+mNumberEditText.getText().toString()));
                startActivity(callIntent);

            }

        });

    }

    private class PhoneCallListener extends PhoneStateListener {

        private boolean isPhoneCalling = false;
        private String TAG = PhoneCallListener.class.getSimpleName();
       
        @Override
        public void onCallStateChanged(int state, String incomingNumber) {

            if (TelephonyManager.CALL_STATE_RINGING == state) {
                // phone ringing
                Log.d(TAG, "RINGING STATE");
            }

            if (TelephonyManager.CALL_STATE_OFFHOOK == state) {
                // active
                Log.d(TAG, "OFFHOOK STATE");
                isPhoneCalling = true;
            }

            if (TelephonyManager.CALL_STATE_IDLE == state) {
                Log.d(TAG, "IDLE");
            }
        }
    }
}

 Output :

Source Code : Download this Example Here

Sending SMS Example in Android

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="wrap_content"
        android:layout_height="wrap_content"
        android:text="Enter Phone Number : "
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <EditText
        android:id="@+id/phone_no_edit_text"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:phoneNumber="true" >
    </EditText>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Enter Message : "
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <EditText
        android:id="@+id/sms_edit_text"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:inputType="textMultiLine"
        android:lines="5"
        android:gravity="top" />

    <Button
        android:id="@+id/send_button"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Send" />

</LinearLayout>

MessageActivity.java

package com.rajeshvijayakumar.sendsms;

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

public class MessageActivity extends Activity {

    Button mSendButton;
    EditText mPhoneNoEditText;
    EditText mMessageText;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mSendButton = (Button) findViewById(R.id.send_button);
        mPhoneNoEditText = (EditText) findViewById(R.id.phone_no_edit_text);
        mMessageText = (EditText) findViewById(R.id.sms_edit_text);

        mSendButton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

                String phoneNo = mPhoneNoEditText.getText().toString();
                String sms = mMessageText.getText().toString();

                try {
                    SmsManager smsManager = SmsManager.getDefault();
                    smsManager.sendTextMessage(phoneNo, null, sms, null, null);
                    Toast.makeText(getApplicationContext(), "SMS Sent Successfully!",
                            Toast.LENGTH_LONG).show();
                } catch (Exception e) {
                    Toast.makeText(getApplicationContext(), "please try again later!",
                            Toast.LENGTH_LONG).show();
                    e.printStackTrace();
                }

            }
        });

    }
}

Output :

 

Source Code :  Download this Example Here

Sending Mail Example in Android

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="wrap_content"
        android:layout_height="wrap_content"
        android:text="To : "
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <EditText
        android:id="@+id/to_edit_text"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:inputType="textEmailAddress" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Subject : "
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <EditText
        android:id="@+id/subject_edit_text"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Message : "
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <EditText
        android:id="@+id/message_edit_text"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="top"
        android:inputType="textMultiLine"
        android:lines="5" />

    <Button
        android:id="@+id/send_email_button"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Send" />

</LinearLayout>

EmailActivity.java

package com.rajeshvijayakumar.android;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class EmailActivity extends Activity {

    Button mSendButton;
    EditText mTo;
    EditText mSubject;
    EditText mMessage;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mSendButton = (Button) findViewById(R.id.send_email_button);
        mTo = (EditText) findViewById(R.id.to_edit_text);
        mSubject = (EditText) findViewById(R.id.subject_edit_text);
        mMessage = (EditText) findViewById(R.id.message_edit_text);

        mSendButton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

              String to = mTo.getText().toString();
              String subject = mSubject.getText().toString();
              String message = mMessage.getText().toString();

              Intent email = new Intent(Intent.ACTION_SEND);
              email.putExtra(Intent.EXTRA_EMAIL, new String[]{ to});
              email.putExtra(Intent.EXTRA_SUBJECT, subject);
              email.putExtra(Intent.EXTRA_TEXT, message);

              //prompts email client only
              email.setType("message/rfc822");
             
              startActivity(Intent.createChooser(email, "Choose an Email client :"));
             
            }
        });
    }
}

Output :

Source Code :  Download this example here

Custom Toast Example in Android

activity_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"
    tools:context=".MainActivity" >

    <Button
        android:id="@+id/toast_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:text="Click Here to Display Toast" />

</RelativeLayout>

custom_toast_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/custom_linear_toast"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="horizontal"
    android:background="@android:color/black">

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_2" />

    <TextView
        android:id="@+id/toast_message"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Custom Layout as a Toast"
        android:textColor="@android:color/white"
        android:textAppearance="?android:attr/textAppearanceLarge" />

</LinearLayout>

MainActivity.java

package com.rajeshvijayakumar.toast_example;

import android.app.Activity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity implements OnClickListener {

    private Button mToastButton;
   
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mToastButton = (Button) findViewById(R.id.toast_button);
        mToastButton.setOnClickListener(this);
       
    }

    @Override
    public void onClick(View v) {

        if(v.getId() == R.id.toast_button) {
            LayoutInflater inflater = getLayoutInflater();
            View layout = inflater.inflate(R.layout.custom_toast_layout,
                    (ViewGroup) findViewById(R.id.custom_linear_toast));
          
         Toast toast = new Toast(getApplicationContext());
          toast.setGravity(Gravity.BOTTOM, 0, 0);
          toast.setDuration(Toast.LENGTH_LONG);
          toast.setView(layout);
          toast.show();
        }
    }
}

Output :

Source Code : Download this example Here

Simple Toast Example in Android

activity_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"

    tools:context=".MainActivity" >

    <Button

        android:id="@+id/toast_button"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_centerHorizontal="true"

        android:layout_centerVertical="true"

        android:text="Click Here to Display Toast" />

</RelativeLayout>

MainActivity.java

package com.rajeshvijayakumar.toast_example;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.Toast;

public class MainActivity extends Activity implements OnClickListener {

    private Button mToastButton;

   

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        mToastButton = (Button) findViewById(R.id.toast_button);

        mToastButton.setOnClickListener(this);

       

    }

    @Override

    public void onClick(View v) {

        if(v.getId() == R.id.toast_button) {

            Toast.makeText(this, "You have clicked, So Toast is appeared", Toast.LENGTH_LONG).show();

        }

    }

}

Output :

Source Code : Download this Example Here