SQLLITE_GUJ_INFO_ListView

Step 1:activity_main &java
Step 2:delete xml & java
Step 3:update xml & java
Atep 4;single.xml
Step 5:dbhelper.java
Step 6:persondata.java(pojo)




Step 1:activity_main &java

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:orientation="vertical"
    tools:context="demoproject.aalap.com.myapplication.MainActivity">

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/txtemail"
        android:hint="enter email"/>
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/txtpass"
        android:hint="enter password"/>
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="enter re-password"
        android:id="@+id/rpass"/>
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="insert"
        android:id="@+id/insert"/>
    <ListView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/list"></ListView>

</LinearLayout>

Step 1:MainAvtivity.java

package demoproject.aalap.com.myapplication;

import android.content.Context;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {
    EditText e1,e2,e3;
    Button b1;
    persondata p;
    dbhelper db;
    ListView lv;
    private ArrayList<persondata> ar;


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

        e1=(EditText)findViewById(R.id.txtemail);
        e2=(EditText)findViewById(R.id.txtpass);
        e3=(EditText)findViewById(R.id.rpass);
        b1=(Button)findViewById(R.id.insert);
        lv=(ListView)findViewById(R.id.list);
        db=new dbhelper(MainActivity.this);




        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String em=e1.getText().toString();
                String pws=e2.getText().toString();
                String rpwd=e3.getText().toString();

                if(em.length()==0||pws.length()==0||rpwd.length()==0)
                {
                    Toast.makeText(MainActivity.this,"fill all field",Toast.LENGTH_LONG).show();
                    e1.setError("enter email");
                    e2.setError("enter password");
                    e3.setError("enter re-paaword");
                }
                else if(!pws.equals(rpwd))
                {
                    Toast.makeText(MainActivity.this,"password is not match",Toast.LENGTH_LONG).show();
                    e2.setError("password is not match");
                    e3.setError("password is not match");
                }
                else if(pws.length()<6)
                {
                    Toast.makeText(MainActivity.this,"minimum length is 6 character",Toast.LENGTH_LONG).show();
                    e2.setError("enter password");
                }
                else
                {
                    p=new persondata();
                    p.setEmail(em);
                    p.setPass(pws);
                    db.insertdata(p);
                    finish();
                    startActivity(getIntent());
                }

            }
        });
        ar=db.getdata();
        custumadeptert ad=new custumadeptert(MainActivity.this,ar);
        lv.setAdapter(ad);
        lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {

                persondata p=(persondata)ar.get(i);
                Intent intent=new Intent(MainActivity.this,delete.class);
                int k=p.getId();
                intent.putExtra("id",String.valueOf(k));
                intent.putExtra("email",p.getEmail());
                intent.putExtra("pass",p.getPass());
                startActivity(intent);

            }



        });
    }


    public class custumadeptert extends BaseAdapter {
        Context context;
        LayoutInflater inflater;
        ArrayList<persondata>ar;
        TextView tv;
        persondata p;
        custumadeptert(Context context,ArrayList<persondata> ar)
        {
            this.context=context;
            this.ar=ar;
        }
        @Override
        public int getCount() {
            return ar.size();
        }

        @Override
        public Object getItem(int position) {
            return null;
        }

        @Override
        public long getItemId(int position) {
            return 0;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            inflater=(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            View v=inflater.inflate(R.layout.single,parent,false);
            tv=(TextView)v.findViewById(R.id.txtviw);
            p=(persondata)ar.get(position);
            tv.setText(p.getId()+"   "+p.getEmail()+"     "+p.getPass());
            return v;

        }
    }

}


Step 2:update.xml & java

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:orientation="vertical"
    tools:context="demoproject.aalap.com.myapplication.update">

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/uemail"
        android:hint="enter email"/>
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/pwd"
        android:hint="enter password"/>
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/update"
        android:text="update"/>


</LinearLayout>

Step 2:update.java

package demoproject.aalap.com.myapplication;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class update extends AppCompatActivity {
    EditText e1,e2;
    Button b1;
    persondata p;
    dbhelper db;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_update);

        e1=(EditText)findViewById(R.id.uemail);
        e2=(EditText)findViewById(R.id.pwd);
        b1=(Button)findViewById(R.id.update);

        db=new dbhelper(update.this);

        Intent a=getIntent();
        final String  id1=a.getStringExtra("id1");
        final String eml=a.getStringExtra("email");
        String pwd=a.getStringExtra("pass");

        e1.setText(id1+"    "+eml);
        e2.setText(pwd);

        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                p=new persondata();
                p.setEmail(e1.getText().toString());
                p.setPass(e2.getText().toString());
                db.updatedata(p,id1);

                Intent i=new Intent(update.this,MainActivity.class);
                startActivity(i);

            }
        });
    }

}


Step 3:single.xml

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

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/txtviw"
        android:text="text"/>

</LinearLayout>

Step 4:delete xml & java

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:orientation="vertical"
    tools:context="demoproject.aalap.com.myapplication.delete">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/tv1"/>
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/btn1"
        android:text="delete"/>
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="update"
        android:id="@+id/upd"/>


</LinearLayout>

Step 4:delete.java

package demoproject.aalap.com.myapplication;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class delete extends AppCompatActivity {
    TextView t1;
    Button b1,b2;
    dbhelper db;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_delete);

        t1=(TextView)findViewById(R.id.tv1);
        b1=(Button)findViewById(R.id.btn1);
        b2=(Button)findViewById(R.id.upd);

        db=new dbhelper(delete.this);
        Intent i=getIntent();
        final String id=i.getStringExtra("id");
        final String em=i.getStringExtra("email");
        final String ps=i.getStringExtra("pass");

        t1.setText(id+"   "+em+"   "+ps);

        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                int k=Integer.parseInt(id);
                db.deletedata(k);

                Intent i=new Intent(delete.this,MainActivity.class);
                startActivity(i);
            }
        });





        b2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                Intent a=new Intent(delete.this,update.class);
                a.putExtra("email",em);
                a.putExtra("pass",ps);
                a.putExtra("id1",id);
                startActivity(a);
            }
        });
    }
}

Step 5:dbhelper.java

package demoproject.aalap.com.myapplication;

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

import java.util.ArrayList;

/**
 * Created by ADMIN on 25-07-2018.
 */

public class dbhelper extends SQLiteOpenHelper {
    private static String dbname="mydatabase";
    private static int dbvirsion=1;
    private static String tbname="persiond";
    private static String uid="id";
    private static String uemail="email";
    private static String upass="pass";
    ArrayList<persondata>ar;
    dbhelper(Context context)
    {
        super(context,dbname,null,dbvirsion);

    }
    @Override
    public void onCreate(SQLiteDatabase db)
    {
        String sql="create table "+tbname+" ("+uid+" integer primary key autoincrement, "+uemail+" varchar(30), "+upass+" varchar(30))";
        db.execSQL(sql);

    }

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

    }
    public void insertdata(persondata p)
    {
        SQLiteDatabase db=getWritableDatabase();
        ContentValues cv=new ContentValues();
        cv.put(uemail,p.getEmail());
        cv.put(upass,p.getPass());
        db.insert(tbname,null,cv);
    }
    public ArrayList<persondata> getdata()
    {
        ar=new ArrayList<>();
        SQLiteDatabase db=this.getReadableDatabase();

        String sql="Select *, "+uid+" as _id from "+tbname;
        Cursor c=db.rawQuery(sql,null);
        while (c.moveToNext())
        {
            persondata p=new persondata();
            int id=c.getInt(0);
            String em=c.getString(1);
            String ps=c.getString(2);

            p.setId(id);
            p.setEmail(em);
            p.setPass(ps);

            ar.add(p);
        }
        return ar;
    }
    public void deletedata(int id)
    {
        SQLiteDatabase db=this.getWritableDatabase();
        String sql="delete from "+tbname+" where "+uid+"="+id;
        db.execSQL(sql);
    }


    public void updatedata(persondata p,String id)
    {
        SQLiteDatabase db=this.getWritableDatabase();
        ContentValues cv=new ContentValues();
        cv.put(uemail,p.getEmail());
        cv.put(upass,p.getPass());
        db.update(tbname,cv,uid+"=?",new String[]{id});
    }


}

Step 6:persondata.java(pojo class)

package demoproject.aalap.com.myapplication;

/**
 * Created by ADMIN on 25-07-2018.
 */

public class persondata {
    int id;
    String email,pass;

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getPass() {
        return pass;
    }

    public void setPass(String pass) {
        this.pass = pass;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }
}


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