Category: Android Tutorials

October 15, 2018

Sqlite Example in Android

actvity_main.xml

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

    tools:context=".MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Name"
        android:id="@+id/textView"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Surname"
        android:id="@+id/textView2"
        android:layout_below="@+id/editText_name"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Marks"
        android:id="@+id/textView3"
        android:layout_below="@+id/editText_surname"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/editText_name"
        android:layout_alignTop="@+id/textView"
        android:layout_toRightOf="@+id/textView"
        android:layout_toEndOf="@+id/textView" />

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/editText_surname"
        android:layout_alignTop="@+id/textView2"
        android:layout_toRightOf="@+id/textView2"
        android:layout_toEndOf="@+id/textView2" />

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/editText_Marks"
        android:layout_below="@+id/editText_surname"
        android:layout_toRightOf="@+id/textView3"
        android:layout_toEndOf="@+id/textView3" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Add Data"
        android:id="@+id/button_add"
        android:layout_below="@+id/editText_Marks"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_marginTop="76dp" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="View All"
        android:id="@+id/button_viewAll"
        android:layout_above="@+id/button_update"
        android:layout_centerHorizontal="true" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Update"
        android:id="@+id/button_update"
        android:layout_below="@+id/button_add"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />


    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Delete"
        android:id="@+id/button_delete"
        android:layout_centerVertical="true"
        android:layout_below="@+id/button_viewAll"
        android:layout_alignLeft="@+id/button_viewAll"
        android:layout_alignStart="@+id/button_viewAll" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="id"
        android:id="@+id/textView_id"
        android:layout_below="@+id/editText_Marks"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/editText_id"
        android:layout_alignTop="@+id/textView_id"
        android:layout_toRightOf="@+id/textView3"
        android:layout_toEndOf="@+id/textView3" />

</RelativeLayout>

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<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:tools="http://schemas.android.com/tools"

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context=".MainActivity">

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textAppearance="?android:attr/textAppearanceLarge"

android:text="Name"

android:id="@+id/textView"

android:layout_alignParentTop="true"

android:layout_alignParentLeft="true"

android:layout_alignParentStart="true" />

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textAppearance="?android:attr/textAppearanceLarge"

android:text="Surname"

android:id="@+id/textView2"

android:layout_below="@+id/editText_name"

android:layout_alignParentLeft="true"

android:layout_alignParentStart="true" />

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textAppearance="?android:attr/textAppearanceLarge"

android:text="Marks"

android:id="@+id/textView3"

android:layout_below="@+id/editText_surname"

android:layout_alignParentLeft="true"

android:layout_alignParentStart="true" />

<EditText

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:id="@+id/editText_name"

android:layout_alignTop="@+id/textView"

android:layout_toRightOf="@+id/textView"

android:layout_toEndOf="@+id/textView" />

<EditText

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:id="@+id/editText_surname"

android:layout_alignTop="@+id/textView2"

android:layout_toRightOf="@+id/textView2"

android:layout_toEndOf="@+id/textView2" />

<EditText

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:id="@+id/editText_Marks"

android:layout_below="@+id/editText_surname"

android:layout_toRightOf="@+id/textView3"

android:layout_toEndOf="@+id/textView3" />

<Button

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Add Data"

android:id="@+id/button_add"

android:layout_below="@+id/editText_Marks"

android:layout_alignParentLeft="true"

android:layout_alignParentStart="true"

android:layout_marginTop="76dp" />

<Button

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="View All"

android:id="@+id/button_viewAll"

android:layout_above="@+id/button_update"

android:layout_centerHorizontal="true" />

<Button

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Update"

android:id="@+id/button_update"

android:layout_below="@+id/button_add"

android:layout_alignParentLeft="true"

android:layout_alignParentStart="true" />

<Button

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Delete"

android:id="@+id/button_delete"

android:layout_centerVertical="true"

android:layout_below="@+id/button_viewAll"

android:layout_alignLeft="@+id/button_viewAll"

android:layout_alignStart="@+id/button_viewAll" />

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textAppearance="?android:attr/textAppearanceLarge"

android:text="id"

android:id="@+id/textView_id"

android:layout_below="@+id/editText_Marks"

android:layout_alignParentLeft="true"

android:layout_alignParentStart="true" />

<EditText

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:id="@+id/editText_id"

android:layout_alignTop="@+id/textView_id"

android:layout_toRightOf="@+id/textView3"

android:layout_toEndOf="@+id/textView3" />

</RelativeLayout>

MainActivity.Java

package com.androindian.raj.sqlite;

import android.database.Cursor;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    DatabaseHelper myDb;
    EditText editName,editSurname,editMarks ,editTextId;
    Button btnAddData;
    Button btnviewAll;
    Button btnDelete;

    Button btnviewUpdate;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
         myDb= new DatabaseHelper(this);

        editName = (EditText)findViewById(R.id.editText_name);
        editSurname = (EditText)findViewById(R.id.editText_surname);
        editMarks = (EditText)findViewById(R.id.editText_Marks);
        editTextId = (EditText)findViewById(R.id.editText_id);
        btnAddData = (Button)findViewById(R.id.button_add);
        btnviewAll = (Button)findViewById(R.id.button_viewAll);
        btnviewUpdate= (Button)findViewById(R.id.button_update);
        btnDelete= (Button)findViewById(R.id.button_delete);
        AddData();
        viewAll();
        UpdateData();
        DeleteData();
    }

    public void DeleteData() {
        btnDelete.setOnClickListener(
                new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        Integer deletedRows =
                                myDb.deleteData(editTextId.getText().toString());
                        if(deletedRows > 0)
                            Toast.makeText(MainActivity.this,"Data Deleted",Toast.LENGTH_LONG).show();
                        else
                            Toast.makeText(MainActivity.this,"Data not Deleted",Toast.LENGTH_LONG).show();
                    }
                }
        );
    }
    public void UpdateData() {
        btnviewUpdate.setOnClickListener(
                new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        boolean isUpdate = myDb.updateData(editTextId.getText().toString(),
                                editName.getText().toString(),
                                editSurname.getText().toString(),editMarks.getText().toString());
                        if(isUpdate == true)
                            Toast.makeText(MainActivity.this,"Data Update",Toast.LENGTH_LONG).show();
                        else
                            Toast.makeText(MainActivity.this,"Data not Updated",Toast.LENGTH_LONG).show();
                    }
                }
        );
    }
    public  void AddData() {
        btnAddData.setOnClickListener(
                new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        boolean isInserted = myDb.insertData(editName.getText().toString(),
                                editSurname.getText().toString(),
                                editMarks.getText().toString() );
                        if(isInserted == true)
                            Toast.makeText(MainActivity.this,"Data Inserted",Toast.LENGTH_LONG).show();
                        else
                            Toast.makeText(MainActivity.this,"Data not Inserted",Toast.LENGTH_LONG).show();
                    }
                }
        );
    }

    public void viewAll() {
        btnviewAll.setOnClickListener(
                new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        Cursor res = myDb.getAllData();
                        if(res.getCount() == 0) {
                            // show message
                            showMessage("Error","Nothing found");
                            return;
                        }

                        StringBuffer buffer = new StringBuffer();
                        while (res.moveToNext()) {
                            buffer.append("Id :"+ res.getString(0)+"\n");
                            buffer.append("Name :"+ res.getString(1)+"\n");
                            buffer.append("Surname :"+ res.getString(2)+"\n");
                            buffer.append("Marks :"+ res.getString(3)+"\n\n");
                        }

                        // Show all data
                        showMessage("Data",buffer.toString());
                    }
                }
        );
    }

    public void showMessage(String title,String Message){
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setCancelable(true);
        builder.setTitle(title);
        builder.setMessage(Message);
        builder.show();
    }



}

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package com.androindian.raj.sqlite;

import android.database.Cursor;

import android.support.v7.app.AlertDialog;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

DatabaseHelper myDb;

EditText editName,editSurname,editMarks ,editTextId;

Button btnAddData;

Button btnviewAll;

Button btnDelete;

Button btnviewUpdate;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

myDb= new DatabaseHelper(this);

editName = (EditText)findViewById(R.id.editText_name);

editSurname = (EditText)findViewById(R.id.editText_surname);

editMarks = (EditText)findViewById(R.id.editText_Marks);

editTextId = (EditText)findViewById(R.id.editText_id);

btnAddData = (Button)findViewById(R.id.button_add);

btnviewAll = (Button)findViewById(R.id.button_viewAll);

btnviewUpdate= (Button)findViewById(R.id.button_update);

btnDelete= (Button)findViewById(R.id.button_delete);

AddData();

viewAll();

UpdateData();

DeleteData();

}

public void DeleteData() {

btnDelete.setOnClickListener(

new View.OnClickListener() {

@Override

public void onClick(View v) {

Integer deletedRows =

myDb.deleteData(editTextId.getText().toString());

if(deletedRows > 0)

Toast.makeText(MainActivity.this,"Data Deleted",Toast.LENGTH_LONG).show();

else

Toast.makeText(MainActivity.this,"Data not Deleted",Toast.LENGTH_LONG).show();

}

);

}

public void UpdateData() {

btnviewUpdate.setOnClickListener(

new View.OnClickListener() {

@Override

public void onClick(View v) {

boolean isUpdate = myDb.updateData(editTextId.getText().toString(),

editName.getText().toString(),

editSurname.getText().toString(),editMarks.getText().toString());

if(isUpdate == true)

Toast.makeText(MainActivity.this,"Data Update",Toast.LENGTH_LONG).show();

else

Toast.makeText(MainActivity.this,"Data not Updated",Toast.LENGTH_LONG).show();

}

);

}

public void AddData() {

btnAddData.setOnClickListener(

new View.OnClickListener() {

@Override

public void onClick(View v) {

boolean isInserted = myDb.insertData(editName.getText().toString(),

editSurname.getText().toString(),

editMarks.getText().toString() );

if(isInserted == true)

Toast.makeText(MainActivity.this,"Data Inserted",Toast.LENGTH_LONG).show();

else

Toast.makeText(MainActivity.this,"Data not Inserted",Toast.LENGTH_LONG).show();

}

);

}

public void viewAll() {

btnviewAll.setOnClickListener(

new View.OnClickListener() {

@Override

public void onClick(View v) {

Cursor res = myDb.getAllData();

if(res.getCount() == 0) {

// show message

showMessage("Error","Nothing found");

return;

}

StringBuffer buffer = new StringBuffer();

while (res.moveToNext()) {

buffer.append("Id :"+ res.getString(0)+"\n");

buffer.append("Name :"+ res.getString(1)+"\n");

buffer.append("Surname :"+ res.getString(2)+"\n");

buffer.append("Marks :"+ res.getString(3)+"\n\n");

}

// Show all data

showMessage("Data",buffer.toString());

}

);

}

public void showMessage(String title,String Message){

AlertDialog.Builder builder = new AlertDialog.Builder(this);

builder.setCancelable(true);

builder.setTitle(title);

builder.setMessage(Message);

builder.show();

}

DataBaseHelper.java

package com.androindian.raj.sqlite;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

public class DatabaseHelper extends SQLiteOpenHelper {
    public static final String DATABASE_NAME = "Student.db";
    public static final String TABLE_NAME = "student_table";
    public static final String COL_1 = "ID";
    public static final String COL_2 = "NAME";
    public static final String COL_3 = "SURNAME";
    public static final String COL_4 = "MARKS";

    public DatabaseHelper(Context context) {
        super(context, DATABASE_NAME, null, 1);
    }
    @Override
    public void onCreate(SQLiteDatabase db) {
        db.execSQL("create table " + TABLE_NAME +" " +
                "(ID INTEGER PRIMARY KEY AUTOINCREMENT," +
                "NAME TEXT,SURNAME TEXT,MARKS INTEGER)");
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        db.execSQL("DROP TABLE IF EXISTS "+TABLE_NAME);
        onCreate(db);
    }

    public boolean insertData(String name,
                              String surname,String marks) {
        SQLiteDatabase db = this.getWritableDatabase();
        ContentValues contentValues = new ContentValues();
        contentValues.put(COL_2,name);
        contentValues.put(COL_3,surname);
        contentValues.put(COL_4,marks);
        long result = db.insert(TABLE_NAME,null ,contentValues);
        if(result == -1)
            return false;
        else
            return true;
    }

    public Cursor getAllData() {
        SQLiteDatabase db = this.getWritableDatabase();
        Cursor res = db.rawQuery("select * from "+TABLE_NAME,null);
        return res;
    }

    public boolean updateData(String id,String name,String surname,String marks) {
        SQLiteDatabase db = this.getWritableDatabase();
        ContentValues contentValues = new ContentValues();
        contentValues.put(COL_1,id);
        contentValues.put(COL_2,name);
        contentValues.put(COL_3,surname);
        contentValues.put(COL_4,marks);
        db.update(TABLE_NAME, contentValues,
                "ID = ?",new String[] { id });
        return true;
    }

    public Integer deleteData (String id) {
        SQLiteDatabase db = this.getWritableDatabase();
        return db.delete(TABLE_NAME, "ID = ?",new String[] {id});
    }
}

package com.androindian.raj.sqlite;

import android.content.ContentValues;

import android.content.Context;

import android.database.Cursor;

import android.database.sqlite.SQLiteDatabase;

import android.database.sqlite.SQLiteOpenHelper;

public class DatabaseHelper extends SQLiteOpenHelper {

public static final String DATABASE_NAME = "Student.db";

public static final String TABLE_NAME = "student_table";

public static final String COL_1 = "ID";

public static final String COL_2 = "NAME";

public static final String COL_3 = "SURNAME";

public static final String COL_4 = "MARKS";

public DatabaseHelper(Context context) {

super(context, DATABASE_NAME, null, 1);

}

@Override

public void onCreate(SQLiteDatabase db) {

db.execSQL("create table " + TABLE_NAME +" " +

"(ID INTEGER PRIMARY KEY AUTOINCREMENT," +

"NAME TEXT,SURNAME TEXT,MARKS INTEGER)");

}

@Override

public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

db.execSQL("DROP TABLE IF EXISTS "+TABLE_NAME);

onCreate(db);

}

public boolean insertData(String name,

String surname,String marks) {

SQLiteDatabase db = this.getWritableDatabase();

ContentValues contentValues = new ContentValues();

contentValues.put(COL_2,name);

contentValues.put(COL_3,surname);

contentValues.put(COL_4,marks);

long result = db.insert(TABLE_NAME,null ,contentValues);

if(result == -1)

return false;

else

return true;

}

public Cursor getAllData() {

SQLiteDatabase db = this.getWritableDatabase();

Cursor res = db.rawQuery("select * from "+TABLE_NAME,null);

return res;

}

public boolean updateData(String id,String name,String surname,String marks) {

SQLiteDatabase db = this.getWritableDatabase();

ContentValues contentValues = new ContentValues();

contentValues.put(COL_1,id);

contentValues.put(COL_2,name);

contentValues.put(COL_3,surname);

contentValues.put(COL_4,marks);

db.update(TABLE_NAME, contentValues,

"ID = ?",new String[] { id });

return true;

}

public Integer deleteData (String id) {

SQLiteDatabase db = this.getWritableDatabase();

return db.delete(TABLE_NAME, "ID = ?",new String[] {id});

}

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Active Android is the Advanced library for SQLite Data Base. First add below gradle and repository into your app gradle

repositories {
    mavenCentral()
    maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
}

compile 'com.michaelpardo:activeandroid:3.1.0-SNAPSHOT'

repositories {

mavenCentral()

maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }

}

compile 'com.michaelpardo:activeandroid:3.1.0-SNAPSHOT'

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Network Checking

In some of the devices even when the internet is present also those will show net is not present on those case you can use code for network checking activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">


    <Button
        android:id="@+id/button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Button"
        tools:layout_editor_absoluteX="4dp"
        tools:layout_editor_absoluteY="16dp"
        tools:ignore="MissingConstraints" />
</android.support.constraint.ConstraintLayout>

<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context=".MainActivity">

<Button

android:id="@+id/button"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="Button"

tools:layout_editor_absoluteX="4dp"

tools:layout_editor_absoluteY="16dp"

tools:ignore="MissingConstraints" />

</android.support.constraint.ConstraintLayout>

MainActivity.java

package com.androindian.raj.test;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.Network;
import android.net.NetworkInfo;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    Button button;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button=findViewById(R.id.button);

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                ConnectivityManager manager= (ConnectivityManager) getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE);
                if (manager!=null){
                    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
                        Network[] network = manager.getAllNetworks();
                        NetworkInfo info=manager.getActiveNetworkInfo();
                        if (info!=null&&info.isConnectedOrConnecting()){
                            Toast.makeText(MainActivity.this,
                                    "Net is there",Toast.LENGTH_LONG).show();
                        }
                        //some times above code id sutable that time you can use below code
               /* if (network.length >= 0) {
                    for (Network mntework : network) {
                        info = manager.getNetworkInfo(mntework);
                        if (info.getState().equals(NetworkInfo.State.CONNECTED)) {
                            return true;
                        }
                    }
                }*/
                    }else {
                        NetworkInfo[] networkInfos = manager.getAllNetworkInfo();
                        if (networkInfos != null) {
                            for (NetworkInfo info : networkInfos) {
                                if (info.getState() == NetworkInfo.State.CONNECTED) {
                                    Toast.makeText(MainActivity.this,
                                            "Net is Not there",Toast.LENGTH_LONG).show();
                                }
                            }
                        }
                    }
                }
            }
        });
    }
}

package com.androindian.raj.test;

import android.content.Context;

import android.net.ConnectivityManager;

import android.net.Network;

import android.net.NetworkInfo;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

Button button;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

button=findViewById(R.id.button);

button.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

ConnectivityManager manager= (ConnectivityManager) getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE);

if (manager!=null){

if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {

Network[] network = manager.getAllNetworks();

NetworkInfo info=manager.getActiveNetworkInfo();

if (info!=null&&info.isConnectedOrConnecting()){

Toast.makeText(MainActivity.this,

"Net is there",Toast.LENGTH_LONG).show();

}

//some times above code id sutable that time you can use below code

/* if (network.length >= 0) {

for (Network mntework : network) {

info = manager.getNetworkInfo(mntework);

if (info.getState().equals(NetworkInfo.State.CONNECTED)) {

return true;

}

}*/

}else {

NetworkInfo[] networkInfos = manager.getAllNetworkInfo();

if (networkInfos != null) {

for (NetworkInfo info : networkInfos) {

if (info.getState() == NetworkInfo.State.CONNECTED) {

Toast.makeText(MainActivity.this,

"Net is Not there",Toast.LENGTH_LONG).show();

}

});

}

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