Open top menu


This artical described how to used JSON in android. In this example we implement Registration an Login via JSON.explain below...

Step 1:


 first,you have add manifest permission.

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

Step 2:

create the Registratio and Login UserInteface (UI) field inside res/layout/login and registration xml class.

registration.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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical"
    tools:ignore="ScrollViewSize" >

    <ScrollView
        android:id="@+id/scrollView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_margin="3dp"
            android:orientation="vertical"
            android:paddingBottom="10dp"
            android:paddingTop="10dp" >

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_margin="5dp"
                android:orientation="vertical"
                android:padding="5dp" >

                <EditText
                    android:id="@+id/editText_name"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_margin="4dp"
                    android:ems="10"
                    android:hint="@string/edit_name"
                    android:inputType="textPersonName"
                    android:textColorHint="@color/hint_edittextcolor"
                    android:textSize="14sp" >
                </EditText>

                <EditText
                    android:id="@+id/editText_mobile"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_margin="4dp"
                    android:ems="10"
                    android:hint="@string/edit_mobile"
                    android:inputType="number"
                    android:textColorHint="@color/hint_edittextcolor"
                    android:textSize="14sp" />

                <EditText
                    android:id="@+id/editText_email"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_margin="4dp"
                    android:ems="10"
                    android:hint="@string/edit_email"
                    android:inputType="textEmailAddress"
                    android:textColorHint="@color/hint_edittextcolor"
                    android:textSize="14sp" />

                <EditText
                    android:id="@+id/editText_password"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_margin="4dp"
                    android:ems="10"
                    android:hint="@string/edit_pass"
                    android:inputType="textPassword"
                    android:textColorHint="@color/hint_edittextcolor"
                    android:textSize="14sp" />

                <EditText
                    android:id="@+id/editText_cofPassword"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_margin="4dp"
                    android:ems="10"
                    android:hint="@string/edit_confpass"
                    android:inputType="textPassword"
                    android:textColorHint="@color/hint_edittextcolor"
                    android:textSize="14sp" />
            </LinearLayout>

            <Button
                android:id="@+id/btn_signUp"
                android:layout_width="fill_parent"
                android:layout_height="47dp"
                android:layout_marginBottom="7dp"
                android:layout_marginLeft="7dp"
                android:layout_marginRight="7dp"
                android:layout_marginTop="30dp"
                android:text="@string/btn_submit" />
        </LinearLayout>
    </ScrollView>

</LinearLayout>

login.xml
.......................................................................................................................................................
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/scrollView1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical" >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="7dip"
            android:orientation="vertical" >

            <EditText
                android:id="@+id/email"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_margin="4dp"
                android:ems="10"
                android:hint="@string/edit_email"
                android:inputType="textEmailAddress"
                android:textColorHint="@color/hint_edittextcolor"
                android:textSize="14sp" />

            <requestFocus />

            <EditText
                android:id="@+id/password"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="4dip"
                android:layout_marginRight="4dip"
                android:layout_marginTop="8dip"
                android:ems="10"
                android:hint="@string/edit_pass"
                android:inputType="textPassword"
                android:textColorHint="@color/hint_edittextcolor"
                android:textSize="14sp" />

            <Button
                android:id="@+id/btn_signUp"
                android:layout_width="fill_parent"
                android:layout_height="47dp"
                android:layout_marginLeft="7dp"
                android:layout_marginRight="7dp"
                android:layout_marginTop="40dp"
                android:text="@string/btn_login" />
        </LinearLayout>

        <TableLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dip"
            android:stretchColumns="2" >

            <TableRow
                android:id="@+id/tableRow1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="8dip"
                android:layout_marginRight="8dip" >

                <TextView
                    android:id="@+id/textView1"
                    android:layout_width="wrap_content"
                    android:layout_height="50dip"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:text="@string/dolnt_Account" />

                <TextView
                    android:id="@+id/textView_registration"
                    android:layout_width="wrap_content"
                    android:layout_height="50dip"
                    android:layout_gravity="right"
                    android:layout_marginRight="12dp"
                    android:gravity="right|center"
                    android:paddingLeft="10dip"
                    android:paddingRight="10dip"
                    android:text="@string/btn_submit"
                    android:textColor="@color/yellow"
                    android:textSize="20sp"
                    android:textStyle="bold|italic" />
            </TableRow>
        </TableLayout>
    </LinearLayout>

</ScrollView>


Step 3:

create rest JSON Api class inside Src/RestAPI .java

package com.example.androidbeginnerpoint;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map.Entry;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONObject;

import android.content.Context;
import android.util.Log;

@SuppressWarnings("deprecation")
public class RestAPI {

String apiUrl;
Context context;
ArrayList<HashMap<String, String>> ParameterList = new ArrayList<HashMap<String, String>>();

public String getApiUrl() {
return apiUrl;
}

public void setApiUrl(String apiUrl) {
this.apiUrl = apiUrl;
}


public String ResponseApi() {
InputStream inputStream = null;
String result = "";
JSONObject jsonObject = new JSONObject();

try {

for (HashMap<String, String> map : ParameterList)
for (Entry<String, String> mapEntry : map.entrySet()) {

jsonObject.accumulate(mapEntry.getKey(),mapEntry.getValue());


}

HttpClient httpclient = new DefaultHttpClient();

HttpPost httpPost = new HttpPost(apiUrl);
String json = "";

json = jsonObject.toString();

StringEntity se = new StringEntity(json);

httpPost.setEntity(se);

httpPost.setHeader("Accept", "application/json");
httpPost.setHeader("Content-type", "application/json");

HttpResponse httpResponse = httpclient.execute(httpPost);

inputStream = httpResponse.getEntity().getContent();

if (inputStream != null)
result = convertInputStreamToString(inputStream);
else
result = "Did not work!";
} catch (Exception e) {
Log.d("InputStream", e.getLocalizedMessage());
}
return result;

}

public ArrayList<HashMap<String, String>> getParameterList() {
return ParameterList;
}

public void setParameterList(ArrayList<HashMap<String, String>> parameterList) {
ParameterList = parameterList;
}

private static String convertInputStreamToString(InputStream inputStream)
throws IOException {
BufferedReader bufferedReader = new BufferedReader(
new InputStreamReader(inputStream));
String line = "";
String result = "";
while ((line = bufferedReader.readLine()) != null)
result += line;
inputStream.close();
return result;
}
}




Step 4:

create Resgistration.java class inside src folder.


package com.example.androidbeginnerpoint;

import java.util.ArrayList;
import java.util.HashMap;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnFocusChangeListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.Webnetware.Sqlitedatabase.DatabaseAdapter;
import com.Webnetware.adapter.ConnectionDetector;
import com.Webnetware.adapter.Listview_Utility;
import com.Webnetware.resApi.RestAPI;

public class Registrations extends Activity implements OnFocusChangeListener,
                                android.view.View.OnClickListener {

                EditText edit_name, edit_mobile, edit_email,editText_cofPassword,editText_password;
                String string_name, string_mobile, string_email,string_password ;
                String customerId="";
                Button btn_signUp;
                ProgressDialog progressdialog;
                 
                public static final String Pssword = "PsswordKey";
                public static final String Email = "emailKey";
                 
                 
                 
             // get the rest api class

                RestAPI obj_restapi = new RestAPI();
//created all Json parameter store in  array.you have to check json
                ArrayList<HashMap<String, String>> ParameterList = new ArrayList<HashMap<String, String>>();
                HashMap<String, String> map = new HashMap<String, String>();
               
                 
               
                @Override
                protected void onCreate(Bundle savedInstanceState) {
                                // TODO Auto-generated method stub
                                super.onCreate(savedInstanceState);
                        
                                setContentView(R.layout.registration_form);
                                edit_name = (EditText) findViewById(R.id.editText_name);
                                edit_mobile = (EditText) findViewById(R.id.editText_mobile);
                                edit_email = (EditText) findViewById(R.id.editText_email);
                                editText_password = (EditText) findViewById(R.id.editText_password);
                                editText_cofPassword = (EditText) findViewById(R.id.editText_cofPassword);
                                btn_signUp = (Button) findViewById(R.id.btn_signUp);

                                btn_signUp.setOnClickListener(this);
                                edit_name.setOnFocusChangeListener(this);
                                edit_mobile.setOnFocusChangeListener(this);
                                edit_email.setOnFocusChangeListener(this);
                                editText_password.setOnFocusChangeListener(this);
                                editText_cofPassword.setOnFocusChangeListener(this);
                                }
                                 
                }

                @Override
                public void onFocusChange(View v, boolean hasFocus) {
                                 
                               
                                switch (v.getId()) {
                                case R.id.editText_name:
                                                edit_name.setError(null);
                                                break;
                                case R.id.editText_mobile:
                                                edit_mobile.setError(null);
                                                break;
                                case R.id.editText_email:
                                                edit_email.setError(null);
                                case R.id.editText_password:
                                                edit_mobile.setError(null);
                                                break;
                                case R.id.editText_cofPassword:
                                                edit_email.setError(null);
                                default:
                                                break;
                                }

                }

                @Override
                public void onClick(View v) {
                       
// editText validation         

                                if (edit_name.getText().toString().equals("")) {

                                                edit_name.setError("Enter Name");
                                                edit_name.requestFocus();
                                } else if (editText_password.getText().toString().equals("")) {

                                                editText_password.setError("Enter Email Address");
                                                editText_password.requestFocus();
                                               
                                } else if (editText_cofPassword.getText().toString().equals("")) {

                                                editText_cofPassword.setError("Enter Email Address");
                                                editText_cofPassword.requestFocus();
                             }else if (!editText_cofPassword.getText().toString().equals(editText_password.getText().toString())) {
           
                                                utils.AlertDialogBox1(Registrations.this);
                                               
                                } else if (edit_email.getText().toString().equals("")) {

                                                edit_email.setError("Enter Email Address");
                                                edit_email.requestFocus();
                                }
                                  else if (!edit_email.getText().toString()
                                                                   .matches("^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"
                                                             + "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$")) {
                                                edit_email.setError("Enter valid Email address");
                                                edit_email.requestFocus();
                                } else if (edit_mobile.getText().toString().equals("")) {

                                                edit_mobile.setError("Enter Mobile Number");
                                                edit_mobile.requestFocus();
                                } else if (edit_mobile.getText().toString().length() < 10
                                                                || edit_mobile.getText().toString().length() > 10) {
                                                edit_mobile.setError("Enter 10 Digt Number");
                                                edit_mobile.requestFocus();
                                }

                                else {

                                                string_name = edit_name.getText().toString();
                                                string_mobile = edit_mobile.getText().toString();
                                                string_email = edit_email.getText().toString();                 
                                                string_password = editText_password.getText().toString();

                                            // put the all editText String in map array

                                                map.put("Name", string_name);
                                                map.put("EmailID", string_email);                                           
                                                map.put("Password", string_password);
                                                map.put("Mobile1", string_mobile);
                                               
                                                ParameterList.add(map);

                                                new HttpAsyncTask().execute();

                                }
                }

                private class HttpAsyncTask extends AsyncTask<String, Void, String> {
                                @Override
                                protected void onPreExecute() {
                                                super.onPreExecute();
                                                progressdialog = new ProgressDialog(Registrations.this);
                                                progressdialog.setMessage("Please Wait...");
                                                progressdialog.show();
                                                progressdialog.setCancelable(false);
                                                progressdialog.setCanceledOnTouchOutside(false);

                                }

                                @Override
                                protected String doInBackground(String... cname) {
                                                try {
// set the URL via rest api object
                                                                                                                    obj_restapi.setApiUrl("http://www.Register.com/apis/Registration.ashx");
                                                                                                

// set the parameter array
 ob j_restapi.setParameterList(ParameterList);
                                                              
       } catch (Exception e) {
                               Log.d("Exception", e.toString());
}
     return obj_restapi.ResponseApi()

}

   @Override
    protected void onPostExecute(String result) {
     JSONObject json2;
     String value = "True";
      try {                             
         // json object       
             json2 = new JSONObject(result);
          // get json response           
             JSONArray Profiles = json2.getJSONArray("Profiles");
              for (int i = 0; i < Profiles.length(); i++) {
             JSONObject e = Profiles.getJSONObject(i); 
               customerId = e.getString("ID");            
                                                                   
                                                                }                                                                   
 if (value.equals(json2.getString("Message"))) {                                                                                        Toast.makeText(getApplication(), "Your Well Come" ,Toast.LENGTH_LONG).show();                      Intent intent = new Intent(Registrations.this,LoginActivity.class);                       
  startActivity(intent);                                                                
  overridePendingTransition(R.anim.slide_in_right,R.anim.stay);                                                              finish();                                                              

    if (progressdialog != null) {
         progressdialog.dismiss();
       }  
 } else {                                                                                                                                                    
Toast.makeText(getApplication(), "Please Try     Again...",  Toast.LENGTH_LONG).show();                                                                                                         
   if (progressdialog != null) {
     progressdialog.dismiss();                                                                                          
        }                                                                        
       }                                                          
   } catch (JSONException e) {

                                           e.printStackTrace();
                                                }                                                                              
    
                                }
                }

}

                                                                          
                                                                               
                                                                              
                                                    

Step 5:

create Login.java class inside src folder.




package com.example.androidbeginnerpoint;

import java.util.ArrayList;

import java.util.HashMap;



import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import com.Webnetware.Sqlitedatabase.DatabaseAdapter;
import com.Webnetware.adapter.ConnectionDetector;
import com.Webnetware.adapter.Listview_Utility;
import com.Webnetware.resApi.RestAPI;

import android.annotation.SuppressLint;
import android.app.ActionBar;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnFocusChangeListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class LoginActivity extends Activity implements
android.view.View.OnClickListener {
TextView sginUp_btn;
EditText edit_email, editText_password;
String string_email, string_password;
Button btn_signIn;
ProgressDialog progressdialog;

RestAPI obj_restapi = new RestAPI();
ArrayList<HashMap<String, String>> ParameterList = new ArrayList<HashMap<String, String>>();
HashMap<String, String> map = new HashMap<String, String>();

public static final String Pssword = "PsswordKey";
public static final String Email = "emailKey";

@SuppressLint("NewApi")
@Override
protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);
getActionBar().setTitle(" LogIn");
ActionBar actionBar = getActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
setContentView(R.layout.login_actvity);
setContentView(R.layout.login_actvity);
sginUp_btn = (TextView) findViewById(R.id.textView_registration);
edit_email = (EditText) findViewById(R.id.email);
editText_password = (EditText) findViewById(R.id.password);
btn_signIn = (Button) findViewById(R.id.btn_signUp);
btn_signIn.setOnClickListener(this);
sginUp_btn.setOnClickListener(this);
}  
}

//
private class HttpAsyncTask extends AsyncTask<String, Void, String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
progressdialog = new ProgressDialog(LoginActivity.this);
progressdialog.setMessage("Please Wait...");
progressdialog.show();
progressdialog.setCancelable(false);
progressdialog.setCanceledOnTouchOutside(false);

}

@Override
protected String doInBackground(String... cname) {
try {
// set json url
obj_restapi.setApiUrl("http://.comp/ais/Login.ashx");
//set json parameter array
obj_restapi.setParameterList(ParameterList);

} catch (Exception e) {
Log.d("Exception", e.toString());
}

return obj_restapi.ResponseApi();
}

@Override
protected void onPostExecute(String result) {
JSONObject json2;
String value = "True";
try {
json2 = new JSONObject(result);

if (value.equals(json2.getString("Message"))) {
SharedPreferences.Editor editor = sharedpreferences.edit();
editor.putString(Email, string_email);
editor.putString(Pssword, string_password);
editor.commit();

Toast.makeText(getApplication(), "Your Well Come...",Toast.LENGTH_LONG).show();
Intent intent = new Intent(LoginActivity.this,MainActivity.class);
startActivity(intent);
overridePendingTransition(R.anim.slide_in_right,R.anim.stay);

if (progressdialog != null) {
progressdialog.dismiss();
}
else {
Toast.makeText(getApplication(), "Please Try Again...",Toast.LENGTH_LONG).show();
if (progressdialog != null) {
progressdialog.dismiss();
}
}

} catch (JSONException e) {

e.printStackTrace();
}

}
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
overridePendingTransition(R.anim.stay, R.anim.slide_out_right);
return true;
default:
return super.onOptionsItemSelected(item);
}
}

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_signUp:
string_email = edit_email.getText().toString();
string_password = editText_password.getText().toString();
map.put("EmailID", string_email);
map.put("Password", string_password);
ParameterList.add(map);

new HttpAsyncTask().execute();
break;
case R.id.textView_registration:
 
Intent intent = new Intent(LoginActivity.this,Registrations.class);
startActivity(intent);
overridePendingTransition(R.anim.slide_in_right,R.anim.stay);
break;

default:
break;
}

}

}



Step 6:

       Login json

Parameter:

{"EmailID":"com@gmail.com","Password":"123"}


Result:

{"Message":"True","Profiles":[{"ID":"30"}]}

Step 7:

Registration Json

Parameter:

{"Name":"jhone","EmailID":"com@gmail.com","Password":"123”,"Mobile1":"674543223"

}


Result:

{"Message":"True","Profiles":[{"ID":"35"}]}


try this ,


1 comment:

  1. wow its wonerfull code...its code is solve my problem

    ReplyDelete