GET DEVICE'S IMEI AND ANDROID SECURE ID PROGRAMMTICALLY

In this blog we will explain how to get system information  for example Device IMEI  &  Android Secure id.

First you can add READ_PHONE_STATE permission in android manifest file .

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

activity_main.xml.

 <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:gravity="center|top">

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:textSize="18dp"
        android:gravity="center"
        android:textStyle="bold"
        android:textColor="#066001"
        android:visibility="visible"
        android:text="ANDROID BEGINNER POINT TUTORIAL"
        android:id="@+id/textView" />
    <Button
        android:text="Get System Info"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="26dp"
        android:id="@+id/button" />
    <TextView
        android:text="IMEI No."
        android:textColor="#991313"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/textemei"
        android:textSize="18dp"
        android:layout_marginTop="30dp"
        tools:text="IMEI No." />

    <TextView
        android:text=""
        android:textStyle="bold"
        android:textSize="18dp"
        android:textColor="#991313"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/textViewemi" />

    <TextView
        android:text="Android Id"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/textid"
        android:layout_marginTop="30dp"
        android:textSize="18dp"
        android:textColor="#c345d3"
        tools:text="Android Id" />

    <TextView
        android:text=""
        android:textStyle="bold"
        android:textSize="18dp"
        android:textColor="#c345d3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/textViewid" />


</LinearLayout>

MainActivity.Java.

public class MainActivity extends AppCompatActivity implements View.OnClickListener{

    Button btninfo;
    TextView textIMEI,textid;

    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        textIMEI=(TextView)findViewById(R.id.textViewemi);
        textid=(TextView)findViewById(R.id.textViewid);
        btninfo=(Button)findViewById(R.id.button);
        btninfo.setOnClickListener(this);

    }

    @Override    public void onClick(View v) {
        switch (v.getId()){
            case R.id.button:
                textIMEI.setText(getIMEI()+".");
                textid.setText(getAndroidId()+".");
                break;
        }
    }

    public String getIMEI() {
        TelephonyManager telephonyManager = (TelephonyManager) this                .getSystemService(Context.TELEPHONY_SERVICE);
        return telephonyManager.getDeviceId();
    }

    public String getAndroidId() {
        return Settings.Secure.getString(this.getContentResolver(), Settings.Secure.ANDROID_ID);
    }
}