Wednesday, May 11, 2016

Customized Row with SQLite & Edit , Delete Functionality --- Mini App

" Jai Saraswati Maa" 
Hi ... Dear All ..Today I am uploading a superb example of Customized List View with Edit & Delete Functionality on each Row - Reflecting with SQLite DataBase.

 ***** Please refer  first my previous post 

Registration & Login Simple One  


http://androidclue4u.blogspot.in/2016/04/registration-login-simple-one.html


 **** It's Just a Mini App you can add such functionality with your App.
**** Please have a patience.

FirstName i am taken as userName for login Purpose.

 Please check.
I am using Android Studio 1.5.1
Minimun SDK API 19
Target SDK API 23
Please Like us & put your valuable suggestions in comment box.

 A. Output Screen Will be like ---
1.       First Screen on Which you have all options ... Please Register First 


2      Registration   Form   
      

3    Login Screen 
   


 4    View All Saved data in a List with Buttons 
    


 5   If you click on Edit so you can change First Name & Last Name  only ....
  


B.  All xml files are 
1.   activity_main.xml   

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

 
<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="com.exam.ravi.customlistwithbutton.MainActivity">

    <Button        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Login"

        android:id="@+id/logBut"

        android:onClick="logUser"

        android:layout_alignParentTop="true"

        android:layout_centerHorizontal="true"

        android:layout_marginTop="54dp" />

    <Button        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="New User"

        android:id="@+id/newuserBut"

        android:onClick="registerUser"

        android:layout_below="@+id/logBut"

        android:layout_alignEnd="@+id/logBut"

        android:layout_marginTop="75dp" />

    <Button        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="ViewAll"

        android:id="@+id/button2"

        android:layout_below="@+id/newuserBut"

        android:layout_centerHorizontal="true"

        android:layout_marginTop="65dp"

        android:onClick="viewAll" />
</RelativeLayout>

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

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

    android:layout_width="match_parent" android:layout_height="match_parent">

    <EditText        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:id="@+id/logUser"

        android:layout_alignParentTop="true"

        android:layout_alignParentStart="true"

        android:layout_marginTop="54dp"

        android:hint="UserName"

        android:layout_alignParentEnd="true" />

    <EditText        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:id="@+id/logPass"        android:layout_below="@+id/logUser"

        android:layout_alignParentStart="true"

        android:layout_marginTop="40dp"

        android:hint="Password"

        android:inputType="textPassword"

        android:layout_alignEnd="@+id/logUser" />

    <Button        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Login Me"

        android:id="@+id/button"

        android:layout_centerVertical="true"

        android:layout_centerHorizontal="true"

        android:onClick="loginUser" />
</RelativeLayout>


3. reguser.xml


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



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



    android:orientation="vertical" android:layout_width="match_parent"



    android:layout_height="match_parent">

    <EditText        android:layout_width="wrap_content"



        android:layout_height="wrap_content"



        android:id="@+id/fName"



        android:layout_alignParentTop="true"



        android:layout_alignParentStart="true"



        android:layout_marginTop="58dp"



        android:hint="First Name"



        android:layout_alignParentEnd="true" />

    <EditText        android:layout_width="wrap_content"



        android:layout_height="wrap_content"



        android:id="@+id/lName"



        android:layout_below="@+id/fName"



        android:layout_alignParentStart="true"



        android:layout_marginTop="42dp"



        android:hint="Last Name"        android:layout_alignParentEnd="true" />

    <EditText        android:layout_width="wrap_content"



        android:layout_height="wrap_content"



        android:inputType="textPassword"



        android:ems="10"        android:id="@+id/userPass"



        android:layout_centerVertical="true"



        android:hint=" Password "        android:layout_alignParentStart="true"



        android:layout_alignParentEnd="true" />

    <Button        android:layout_width="wrap_content"



        android:layout_height="wrap_content"



        android:text="Register"



        android:id="@+id/regist"



        android:layout_below="@+id/userPass"



        android:layout_centerHorizontal="true"



        android:layout_marginTop="50dp"



        android:onClick="regMe"/>
</RelativeLayout>




4. single_row.xml




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



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



    android:layout_width="match_parent" android:layout_height="match_parent">


<LinearLayout    android:layout_width="match_parent"



    android:layout_height="wrap_content"



    android:orientation="horizontal"    >
   <LinearLayout       android:layout_width="wrap_content"



       android:layout_height="wrap_content"



       android:orientation="vertical"



       android:layout_weight="2">


    <TextView        android:layout_width="wrap_content"



        android:layout_height="wrap_content"



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



        android:text="Large Text"



        android:id="@+id/textFname"



        android:layout_alignParentTop="true"



        android:layout_alignParentStart="true" />

    <TextView        android:layout_width="wrap_content"



        android:layout_height="wrap_content"



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



        android:text="Large Text"



        android:id="@+id/textLname"



        android:layout_below="@+id/textView"



        android:layout_alignParentStart="true" />


   </LinearLayout>
      <LinearLayout



          android:layout_width="wrap_content"




          android:layout_height="wrap_content"



          android:orientation="horizontal">


          <Button           android:layout_width="wrap_content"



           android:layout_height="wrap_content"



           android:layout_weight="1"



           android:text="Delete"



           android:id="@+id/rowDel"/>


          <Button              android:layout_width="wrap_content"



              android:layout_height="wrap_content"



              android:layout_weight="1"



              android:text="Edit"              android:id="@+id/rowEdit"/>

      </LinearLayout>


</LinearLayout>
</RelativeLayout>




5. viewalllay.xml  




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



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



    android:layout_width="match_parent" android:layout_height="match_parent">

    <ListView        android:layout_width="wrap_content"



        android:layout_height="wrap_content"



        android:id="@+id/listView"



        android:layout_alignParentTop="true"



        android:layout_alignParentStart="true" />
</RelativeLayout>




6. edit_lay.xml


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



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



    android:layout_width="match_parent"



    android:layout_height="match_parent">
    <EditText



        android:layout_width="wrap_content"



        android:layout_height="wrap_content"



        android:id="@+id/fChname"



        android:layout_alignParentTop="true"



        android:layout_alignParentStart="true"



        android:layout_marginTop="58dp"



        android:hint="First Name"        android:layout_alignParentEnd="true" />

    <EditText        android:layout_width="wrap_content"



        android:layout_height="wrap_content"



        android:id="@+id/lChname"



        android:hint="Last Name"



        android:layout_below="@+id/fChname"



        android:layout_alignParentStart="true"



        android:layout_marginTop="60dp"



        android:layout_alignParentEnd="true" />

    <Button        android:layout_width="wrap_content"



        android:layout_height="wrap_content"



        android:text="Change"



        android:id="@+id/chButton"



        android:layout_below="@+id/lChname"



        android:layout_centerHorizontal="true"



        android:layout_marginTop="77dp" />
</RelativeLayout>



C. Java Code 

1.   MainActivity.java is as 


package com.exam.ravi.customlistwithbutton;

import android.content.Intent;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;


public class MainActivity extends AppCompatActivity {

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

    }
   public void logUser(View view)
    {
        startActivity(new Intent(this, Login.class));
    }


    public void  registerUser(View view)
      {
        startActivity(new Intent(this,RegUser.class));
      }
    public void  viewAll(View view)
    {
        startActivity(new Intent(this,ViewAll.class));
    }
}




2. Login.java 




package com.exam.ravi.customlistwithbutton;

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


public class Login  extends AppCompatActivity {
    EditText EdLogUser, EdLogPass;
    String user, pass;

    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.loglay);
        EdLogUser = (EditText) findViewById(R.id.logUser);
        EdLogPass = (EditText) findViewById(R.id.logPass);
    }

    public void loginUser(View view) {
        user = EdLogUser.getText().toString();
        pass = EdLogPass.getText().toString();
        MyHelp myHelp = new MyHelp(this);
        Cursor crob = myHelp.getInfo(myHelp);
        crob.moveToFirst();
        boolean logstatus = false;
        String NAME = "";
        do {
            if ((user.equals(crob.getString(0))) && (pass.equals(crob.getString(1)))) 


            {
                logstatus = true;
                NAME = crob.getString(0);
            }
        } while (crob.moveToNext());
        if (logstatus) {
         Toast.makeText(getBaseContext(), "Login Success .. . \n Welcome " + NAME, 


                           Toast.LENGTH_LONG).show();
           finish();
        } else {
        Toast.makeText(getBaseContext(), "Login Failed \n Please Check your detail",


                         Toast.LENGTH_LONG).show();
         finish();
        }
    }
}




3. RegUser.java  


package com.exam.ravi.customlistwithbutton;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

public class RegUser extends AppCompatActivity
{
   EditText EdFname,EdLname,EdPass;
    String sFname,sLname,sPass;
    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.reguser);
        EdFname = (EditText) findViewById(R.id.fName);
        EdLname = (EditText) findViewById(R.id.lName);
        EdPass = (EditText) findViewById(R.id.userPass);
    }
    public void regMe(View view)
    {
        sFname = EdFname.getText().toString();
        sLname = EdLname.getText().toString();
        sPass = EdPass.getText().toString();
        MyHelp myob = new MyHelp(this);
        myob.putInfo(myob, sFname, sLname,sPass);
        Toast.makeText(RegUser.this, "Registered Successfully....",


                                    Toast.LENGTH_SHORT).show();
        finish();

    }
}


4. ViewAll.java 


package com.exam.ravi.customlistwithbutton;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.ListView;

import java.util.ArrayList;

public class ViewAll  extends AppCompatActivity {
    ArrayList<DisInfo> showData;
    MyAdapter adapter;
    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.viewalllay);
        MyHelp myHelper = new MyHelp(this);
        showData= myHelper.getAllRows(myHelper);
        adapter= new MyAdapter(this,R.layout.single_row,showData);
        ListView listView = (ListView) findViewById(R.id.listView);
        listView.setAdapter(adapter);

    }
}




5. DisInfo.java 


package com.exam.ravi.customlistwithbutton;

/** * Created by Ravi on 4/28/2016. */public class DisInfo {
    String dis_fname;
    String dis_lname;
    String dis_pass;

    public String getDis_fname() {
        return dis_fname;
    }

    public void setDis_fname(String dis_fname) {
        this.dis_fname = dis_fname;
    }

    public String getDis_lname() {
        return dis_lname;
    }

    public void setDis_lname(String dis_lname) {
        this.dis_lname = dis_lname;
    }

    public String getDis_pass() {
        return dis_pass;
    }

    public void setDis_pass(String dis_pass) {
        this.dis_pass = dis_pass;
    }
}




6. Edit_Act.java   


package com.exam.ravi.customlistwithbutton;

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

public class Edit_Act  extends AppCompatActivity {

    Context context =this;
    EditText EdFName,EdLName,EdPass;
    String getFName,getLName,pass;
    Button change;
    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.edit_lay);
        EdFName = (EditText) findViewById(R.id.fChname);
        EdLName = (EditText) findViewById(R.id.lChname);
        Intent iget = getIntent();
        getFName = iget.getStringExtra("tit");
        getLName = iget.getStringExtra("des");
        pass = iget.getStringExtra("pass");
        EdFName.setText(getFName);
        EdLName.setText(getLName);
        change = (Button) findViewById(R.id.chButton);
        change.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View v) {
                MyHelp myob = new MyHelp(context);
                myob.updateInfo(myob,pass,EdFName.getText().toString(),


                                   EdLName.getText().toString());
                Intent intent = new Intent(Edit_Act.this, ViewAll.class);
                startActivity(intent);
                finish();
            }
        });


    }
}




7. MyAdapter.java 




package com.exam.ravi.customlistwithbutton;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import java.io.ByteArrayInputStream;
import java.util.ArrayList;


public class MyAdapter extends ArrayAdapter<DisInfo> {

    Context context;
    String ret_fname,ret_lname,ret_pass;
    String newUser;
    int layoutResourceId;
    ArrayList<DisInfo> data = new ArrayList<DisInfo>();

    public MyAdapter(Context context, int layoutResourceId, ArrayList<DisInfo> data) 


    {
        super(context, layoutResourceId, data);
        this.layoutResourceId = layoutResourceId;
        this.context = context;
        this.data = data;
    }

    @Override



    public View getView(final int position, View convertView, ViewGroup parent) {
        View row = convertView;
        Holder holder = null;
        if(row == null)
        {
            LayoutInflater inflater = ((Activity)context).getLayoutInflater();
            row = inflater.inflate(layoutResourceId, parent, false);
            holder = new Holder();
            holder.txtTitle = (TextView)row.findViewById(R.id.textFname);
            holder.txtDesc = (TextView)row.findViewById(R.id.textLname);
            holder.butDel = (Button) row.findViewById(R.id.rowDel);
            holder.butEdit = (Button) row.findViewById(R.id.rowEdit);
            row.setTag(holder);
        }
        else        {
            holder = (Holder)row.getTag();
        }
        DisInfo picture = data.get(position);
        ret_fname = picture.dis_fname;
        ret_lname = picture.dis_lname;
        ret_pass = picture.dis_pass;
        holder.txtTitle.setText(ret_fname);
        holder.txtDesc.setText(ret_lname);
        holder.butDel.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View v) {
                DisInfo picture = data.get(position);
                ret_fname = picture.dis_fname;
                ret_pass = picture.dis_pass;
                MyHelp myob = new MyHelp(context);
                myob.deleteUser(myob, ret_fname, ret_pass);
                Intent intent = new Intent(context, MainActivity.class);
                context.startActivity(intent);
            }
        });

        holder.butEdit.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View v)
            {
                Intent iob = new Intent(context,Edit_Act.class);
                DisInfo picture = data.get(position);
                ret_fname = picture.dis_fname;
                ret_lname = picture.dis_lname;
                ret_pass = picture.dis_pass;
                iob.putExtra("tit", ret_fname);
                iob.putExtra("des",ret_lname);
                iob.putExtra("pass",ret_pass);
                context.startActivity(iob);
            }
        });
        return  row;
    }
    static class Holder
    {
        TextView txtTitle;
        TextView txtDesc;
        Button butDel,butEdit;

    }
}




8. MyHelp.java




package com.exam.ravi.customlistwithbutton;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
import android.widget.Toast;

import java.util.ArrayList;


public class MyHelp  extends SQLiteOpenHelper {
    public static final String KEY_ID="_id";
    private static final String DB_NAME="cont.db";
    private static final String TAB_NAME="info";
    private static final int DB_VER=1;
    private static final  String CREATE_QUERY = "create table " + TAB_NAME + " ( " +


      KEY_ID +" integer primary key autoincrement, " +
     UserInfo.F_NAME + " text not null, " + UserInfo.L_NAME + " text not null, " +


                    UserInfo.PASS + " text not null);";

    Context ctx;
    public MyHelp(Context context)
    {
        super(context,DB_NAME,null,DB_VER);
        ctx=context;
    }
    @Override    public void onCreate(SQLiteDatabase sdb) {

        sdb.execSQL(CREATE_QUERY);
        Log.d("rrrr", "oncreate");
    }

    @Override



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


       {
        db.execSQL("DROP TABLE IF EXISTS " + TAB_NAME);
        Log.d("rrrr", "onupgrade");
        onCreate(db);

    }
    public  void putInfo(MyHelp mob,String fname,String lname,String pass)
    {
        SQLiteDatabase SQ= mob.getWritableDatabase();
        ContentValues CV=new ContentValues();
        CV.put(UserInfo.F_NAME, fname);
        CV.put(UserInfo.L_NAME, lname);
        CV.put(UserInfo.PASS, pass);
        SQ.insert(TAB_NAME, null, CV);
    }
    public Cursor getInfo(MyHelp mob)
    {
        SQLiteDatabase SQ= mob.getWritableDatabase();
        String cols[]={UserInfo.F_NAME,UserInfo.PASS};
        Cursor CR= SQ.query(TAB_NAME,cols,null,null,null,null,null); 
        return  CR;
    }

    public void deleteUser(MyHelp mob,String username,String userpass)
    {
     String selection = UserInfo.F_NAME + " LIKE ? AND " + UserInfo.PASS + " LIKE ?";
        String args[]={username,userpass};
        SQLiteDatabase SQ = mob.getWritableDatabase();
        SQ.delete(TAB_NAME,selection,args);

    }
    public void updateInfo(MyHelp mob,String pass,


                                    String newuserFname,String newuserLname)
    {
        SQLiteDatabase SQ = mob.getWritableDatabase();
        String selection = UserInfo.PASS + " LIKE ? ";
        String args[]={pass};
        ContentValues CV = new ContentValues();
        CV.put(UserInfo.F_NAME,newuserFname);
        CV.put(UserInfo.L_NAME,newuserLname);
        SQ.update(TAB_NAME, CV, selection, args);

    }
    public ArrayList<DisInfo> getAllRows(MyHelp mob)
    {
        ArrayList<DisInfo> data = new ArrayList<DisInfo>();
        SQLiteDatabase SQ = mob.getReadableDatabase();
        String col[] = {UserInfo.F_NAME,UserInfo.L_NAME,UserInfo.PASS};
        Cursor cob = SQ.query(TAB_NAME,col,null,null,null,null,null);
        if(cob!=null)
        {
            cob.moveToFirst();
            do {
                DisInfo displayData = new DisInfo();
                displayData.setDis_fname(cob.getString(0));
                displayData.setDis_lname(cob.getString(1));
                displayData.setDis_pass(cob.getString(2));
                data.add(displayData);
            }while(cob.moveToNext());
        }
        Toast.makeText(ctx, "Retrieved", Toast.LENGTH_LONG).show();

        return data;
    }


}




9. UserInfo.java 


package com.exam.ravi.customlistwithbutton;


public class UserInfo {
     public static final String F_NAME = "f_name";
    public static final  String L_NAME = "l_name";
    public static final  String PASS = "pass";



} 
















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4 comments:








  1. UnknownMay 11, 2016 at 7:34 AM
    Great Example Sir, I've been looking for this everywhere Now i can add more functionality into my project <3 :)
    ReplyDelete
  2. Ravi GodaraMay 11, 2016 at 7:58 AM
    Thanks Vipul..... I know what my students want........  Thanks.....
    ReplyDelete
  3. MartinezJune 25, 2016 at 2:00 AM
    Thanks for all your information.Website is very nice and informative content.


    Personalised Phone Covers

    ReplyDelete
  4. Ravi GodaraJune 25, 2016 at 6:12 PM
    Thanks Martinez for your valuable feedback...........
    ReplyDelete




































        

      









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