Harshal Kalavadiya: Login Example with JSON web service Android

For integrating JSON service example you need below jar for that
1. apache-mime4j-0.6.jar
2. gson-2.1.jar
3. httpmime-4.0.1,jar
4. json_simple-1.1.jar

layout_login.xml

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



<RelativeLayout
android:id="@+id/rel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true">

<TextView
android:id="@+id/txt_title"
style="@style/LargeTextView"
android:layout_marginBottom="@dimen/margin_15dp"
android:layout_centerHorizontal="true"
android:hint="Sign IN" />
<android.support.design.widget.TextInputLayout
android:id="@+id/input_layout_email"
android:layout_width="match_parent"
android:layout_below="@+id/txt_title"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/margin_10dp">

<EditText
android:id="@+id/edt_email"
style="@style/Edittext"
android:hint="Email" />

</android.support.design.widget.TextInputLayout>

<android.support.design.widget.TextInputLayout
android:id="@+id/input_layout_pass"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/input_layout_email">

<EditText
android:id="@+id/edt_password"
style="@style/Edittext"
android:hint="Password"
android:inputType="textPassword" />

</android.support.design.widget.TextInputLayout>

<TextView
android:id="@+id/txt_forgot_password"
style="@style/NormalTextView"
android:layout_below="@+id/input_layout_pass"
android:layout_marginLeft="@dimen/margin_10dp"
android:layout_marginTop="@dimen/margin_10dp"
android:text="@string/forgot_password" />

<TextView
android:id="@+id/txt_new_user"
style="@style/NormalTextView"
android:layout_alignParentRight="true"
android:layout_below="@+id/input_layout_pass"
android:layout_marginLeft="@dimen/margin_10dp"
android:layout_marginRight="@dimen/margin_10dp"
android:layout_marginTop="@dimen/margin_10dp"
android:text="@string/new_user" />

<TextView
android:id="@+id/txt_login"
style="@style/NormalTextView"
android:layout_below="@+id/txt_forgot_password"
android:layout_centerHorizontal="true"
android:layout_marginTop="@dimen/margin_20dp"
android:background="@drawable/login_rect"
android:padding="@dimen/margin_10dp"
android:text="LOGIN"
android:textColor="@android:color/white" />

</RelativeLayout>

</RelativeLayout>

LoginActivity.java

package com.example.sphere65.loginregisterskeleton;

import android.app.Activity;

import android.app.AlertDialog;

import android.app.ProgressDialog;

import android.content.Context;

import android.content.DialogInterface;

import android.content.Intent;

import android.os.AsyncTask;

import android.os.Bundle;

import android.support.design.widget.TextInputLayout;

import android.support.v7.app.AppCompatActivity;

import android.support.v7.widget.Toolbar;

import android.text.Editable;

import android.text.TextUtils;

import android.text.TextWatcher;

import android.view.ContextThemeWrapper;

import android.view.LayoutInflater;

import android.view.View;

import android.view.WindowManager;

import android.view.inputmethod.InputMethodManager;

import android.widget.EditText;

import android.widget.TextView;

import android.widget.Toast;

import parser.GetSecrateKey;

public class LoginActivity extends AppCompatActivity {

TextInputLayout mTextInputLayoutEmail;

EditText mEditTextEmail;

TextInputLayout mTextInputLayoutPassword;

EditText mEditTextPassword;

TextView mTextViewForgotPassword;

TextView mTextViewNewUser;

TextView mTextViewLogin;

Context context;

String evalue="";

GetSecrateKey mGetSecrateKey;

PostParseGet mPostParseGet;

AllMethods mAllMethods;

ProgressDialog mProgressDialog;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.layout_login);

context=this;

mGetSecrateKey=new GetSecrateKey();

mPostParseGet=new PostParseGet(LoginActivity.this);

mAllMethods=new AllMethods(LoginActivity.this);

mTextInputLayoutEmail=(TextInputLayout)findViewById(R.id.input_layout_email);

mTextInputLayoutPassword=(TextInputLayout)findViewById(R.id.input_layout_pass);

mEditTextEmail=(EditText)findViewById(R.id.edt_email);

mEditTextPassword=(EditText)findViewById(R.id.edt_password);

mTextViewForgotPassword=(TextView)findViewById(R.id.txt_forgot_password);

mTextViewNewUser=(TextView)findViewById(R.id.txt_new_user);

mTextViewLogin=(TextView)findViewById(R.id.txt_login);

mEditTextEmail.addTextChangedListener(new MyTextWatcher(mEditTextEmail));

mEditTextPassword.addTextChangedListener(new MyTextWatcher(mEditTextPassword));

mTextViewLogin.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

loginDone();

}

});

}

private void loginDone() {

if (!validateEmail()) {

return;

}

else if (!validatePassword()) {

return;

}

else

{

Toast.makeText(getApplicationContext(), "You have logged in successfully.", Toast.LENGTH_SHORT).show();

/* Call Login web service with neccessory parameter

if (mAllMethods.check_Internet()==true)

{

new loginAysnTask().execute();

}

else

{

mAllMethods.ShowDialog(LoginActivity.this,"",getString(R.string.net_not_available),"OK");

}

clearAllField();

}

public class loginAysnTask extends AsyncTask<Void,Void,Void> {

@Override

protected void onPreExecute() {

super.onPreExecute();

mProgressDialog=ProgressDialog.show(LoginActivity.this,"","Loading..");

}

@Override

protected Void doInBackground(Void... voids) {

mGetSecrateKey=(GetSecrateKey)mPostParseGet.login(mGetSecrateKey,mEditTextEmail.getText().toString(),mEditTextPassword.getText().toString());

return null;

}

@Override

protected void onPostExecute(Void aVoid) {

super.onPostExecute(aVoid);

if (mProgressDialog!=null)

{

mProgressDialog.dismiss();

}

if(mPostParseGet.isNetError){

mAllMethods.ShowDialog(LoginActivity.this, "", getString(R.string.net_not_available), "OK");

}

else if (mPostParseGet.isOtherError) {

mAllMethods.ShowDialog(LoginActivity.this, "", getString(R.string.data_not_found), "OK");

}

else

{

if (mGetSecrateKey!=null)

{

if (mGetSecrateKey.getRes_code().equalsIgnoreCase("1"))

{

Toast.makeText(getApplicationContext(), mGetSecrateKey.getRes_msg(), Toast.LENGTH_SHORT).show();

}

else

{

Toast.makeText(getApplicationContext(), mGetSecrateKey.getRes_msg(), Toast.LENGTH_SHORT).show();

}

public void clearAllField()

{

mEditTextEmail.clearFocus();

mEditTextPassword.clearFocus();

}

private boolean validateEmail() {

String email = mEditTextEmail.getText().toString().trim();

if (email.isEmpty() || !isValidEmail(email)) {

mTextInputLayoutEmail.setError(getString(R.string.err_msg_email));

requestFocus(mEditTextEmail);

return false;

} else {

mTextInputLayoutEmail.setErrorEnabled(false);

}

return true;

}

private boolean validatePassword() {

if (mEditTextPassword.getText().toString().trim().isEmpty()) {

mTextInputLayoutPassword.setError(getString(R.string.err_msg_password));

requestFocus(mEditTextPassword);

return false;

} else {

mTextInputLayoutPassword.setErrorEnabled(false);

}

return true;

}

private static boolean isValidEmail(String email) {

return !TextUtils.isEmpty(email) && android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches();

}

private void requestFocus(View view) {

if (view.requestFocus()) {

getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);

}

private class MyTextWatcher implements TextWatcher {

private View view;

private MyTextWatcher(View view) {

this.view = view;

}

public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

}

public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {

}

public void afterTextChanged(Editable editable) {

switch (view.getId()) {

case R.id.edt_email:

validateEmail();

break;

case R.id.edt_password:

validatePassword();

break;

}

AllUrl.java

public class AllUrl {

public static String url="https://www.mylink.com/webservice/";

}

AllMethods.java

package com.example.sphere65.loginregisterskeleton;

import android.app.Activity;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.Context;

import android.content.DialogInterface;

import android.content.res.Configuration;

import android.net.ConnectivityManager;

import android.net.NetworkInfo;

import android.support.v4.app.FragmentActivity;

import android.util.DisplayMetrics;

import android.view.View;

import android.view.inputmethod.InputMethodManager;

import java.text.DateFormat;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Date;

public class AllMethods {

ConnectivityManager mConnectivityManager;

NetworkInfo mNetworkInfo;

boolean isNetError;

public Activity mActivity;

Context mContext;

FragmentActivity mActivity2;

Dialog mDialogRentRimDialog;

public String formatPhoneNumber(String number){

number = number.substring(0, number.length()-4) + "-" + number.substring(number.length()-4, number.length());

number = number.substring(0,number.length()-8)+")"+number.substring(number.length()-8,number.length());

number = number.substring(0, number.length()-12)+"("+number.substring(number.length()-12, number.length());

number = number.substring(0, number.length()-14)+"+"+number.substring(number.length()-14, number.length());

return number;

}

public void hideSoftKeyboard(Activity activity) {

InputMethodManager inputMethodManager = (InputMethodManager) activity.getSystemService(Activity.INPUT_METHOD_SERVICE);

inputMethodManager.hideSoftInputFromWindow(activity.getCurrentFocus().getWindowToken(), 0);

}

public AllMethods() {

// TODO Auto-generated constructor stub

}

public AllMethods(Context mContext) {

// TODO Auto-generated constructor stub

this.mContext=mContext;

}

public AllMethods(Activity mContext) {

// TODO Auto-generated constructor stub

this.mActivity=mContext;

}

public AllMethods(FragmentActivity mContext) {

// TODO Auto-generated constructor stub

this.mActivity=mContext;

}

public void ShowDialog(final Activity activity, String Title ,String Message,String Ok)

{

AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(activity);

alertDialogBuilder.setTitle(Title);

alertDialogBuilder

.setMessage(Message)

.setCancelable(true)

.setPositiveButton(Ok,new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog,int id) {

dialog.cancel();

}

});

AlertDialog alertDialog = alertDialogBuilder.create();

alertDialog.show();

}

public void hideKeyboard(Activity mActivity2,View view) {

InputMethodManager inputMethodManager =(InputMethodManager)mActivity2.getSystemService(Activity.INPUT_METHOD_SERVICE);

inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0);

}

public void ShowDialog(FragmentActivity activity, String Title ,String Message,String Ok)

{

AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(activity);

alertDialogBuilder.setTitle(Title);

alertDialogBuilder

.setMessage(Message)

.setCancelable(true)

.setPositiveButton(Ok,new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog,int id) {

dialog.cancel();

}

});

AlertDialog alertDialog = alertDialogBuilder.create();

alertDialog.show();

}

/*public boolean checkEmail(String EdittextString) {

return FragmentDashboard.emailPattern.matcher(EdittextString).matches();

}*/

public boolean check_Internet()

{

mConnectivityManager= (ConnectivityManager)mActivity.getSystemService(Context.CONNECTIVITY_SERVICE);

mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();

if(mNetworkInfo != null && mNetworkInfo.isConnectedOrConnecting())

{

isNetError = false;

return true;

}

else

{

isNetError = true;

return false;

}

PostParseGet.java

package com.example.sphere65.loginregisterskeleton;

import android.app.Activity;

import android.content.Context;

import android.net.ConnectivityManager;

import android.net.NetworkInfo;

import android.support.v4.app.FragmentActivity;

import com.google.gson.Gson;

import org.apache.http.HttpResponse;

import org.apache.http.NameValuePair;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.conn.scheme.Scheme;

import org.apache.http.conn.scheme.SchemeRegistry;

import org.apache.http.conn.ssl.SSLSocketFactory;

import org.apache.http.conn.ssl.X509HostnameVerifier;

import org.apache.http.entity.mime.HttpMultipartMode;

import org.apache.http.entity.mime.MultipartEntity;

import org.apache.http.entity.mime.content.FileBody;

import org.apache.http.entity.mime.content.StringBody;

import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.impl.conn.SingleClientConnManager;

import org.apache.http.message.BasicNameValuePair;

import org.apache.http.params.BasicHttpParams;

import org.apache.http.params.HttpConnectionParams;

import org.apache.http.params.HttpParams;

import org.apache.http.util.EntityUtils;

import java.io.File;

import java.util.ArrayList;

import java.util.List;

import javax.net.ssl.HostnameVerifier;

import javax.net.ssl.HttpsURLConnection;

import parser.GetSecrateKey;

public class PostParseGet {

public Activity mContext;

public boolean isNetError = false;

public boolean isOtherError = false;

public boolean isDeviceToken = false;

List<NameValuePair> nameValuePairs;

Object mFillObject;

public static ArrayList<String>mflist;

ConnectivityManager mConnectivityManager;

NetworkInfo mNetworkInfo;

Gson mGson;

public PostParseGet(Activity context) {

mContext = context;

mGson = new Gson();

mflist=new ArrayList<String>();

}

public PostParseGet(FragmentActivity context) {

mContext = context;

mGson = new Gson();

mflist=new ArrayList<String>();

}

public Object getmFillObject() {

return mFillObject;

}

public void setmFillObject(Object mFillObject) {

this.mFillObject = mFillObject;

}

public boolean isDeviceToken() {

return isDeviceToken;

}

public void setDeviceToken(boolean isDeviceToken) {

this.isDeviceToken = isDeviceToken;

}

/**

* Function checks internet if avail, Post data to particular Url and filled

* json object relating to the response.

* @param string

* @param nameValuePairs

* @param object

* @param context

* @return object

* @throws CustomException

* */

public Object postHttpURL(String url, List<NameValuePair> nameValuePairs, Object mObject) {

HttpPost httppost;

HttpParams httpParameters;

int timeoutConnection = 60000;

HttpClient httpclient = null;

HttpResponse response = null;

String data = "";

isOtherError = false;

System.out.println("Url " + url);

mFillObject= null;

if(check_Internet())

{

try {

mFillObject = mObject.getClass().newInstance();

HostnameVerifier hostnameVerifier = SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER;

DefaultHttpClient client = new DefaultHttpClient();

SchemeRegistry registry = new SchemeRegistry();

SSLSocketFactory socketFactory = SSLSocketFactory.getSocketFactory();

socketFactory.setHostnameVerifier((X509HostnameVerifier) hostnameVerifier);

registry.register(new Scheme("https", socketFactory, 443));

SingleClientConnManager mgr = new SingleClientConnManager(client.getParams(), registry);

DefaultHttpClient httpClient = new DefaultHttpClient(mgr, client.getParams());

// Set verifier

HttpsURLConnection.setDefaultHostnameVerifier(hostnameVerifier);

// HttpURLConnection urlc = (HttpURLConnection) url.openConnection();

httppost = new HttpPost(url);

httpParameters = new BasicHttpParams();

// HttpConnectionParams.setSoTimeout(httpParameters, timeoutConnection);

HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);

httpclient = new DefaultHttpClient(httpParameters);

MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);

System.out.println("nameValuePairs "+nameValuePairs.size());

if (nameValuePairs != null)

{

for(int index=0; index < nameValuePairs.size(); index++)

{

String paramName=nameValuePairs.get(index).getName();

String paramValue=nameValuePairs.get(index).getValue();

System.out.println("paramName "+paramName);

System.out.println("paramValue "+paramValue);

if(paramName.equalsIgnoreCase("docsimage")||paramName.equalsIgnoreCase("faceimage") )

{

if(paramValue.length()>0)

{

entity.addPart(paramName, new FileBody(new File (paramValue)));

}

else

{

// mflist.clear();

entity.addPart(nameValuePairs.get(index).getName(), new StringBody(nameValuePairs.get(index).getValue()));

}

httppost.setEntity(entity);

}

response = httpclient.execute(httppost);

System.out.println("httppost " + httppost.toString());

data = EntityUtils.toString(response.getEntity());

System.out.println("Final Data "+data);

if(data.equalsIgnoreCase("{\"is_device_deleted\":true}"))

setDeviceToken(true);

mFillObject = mGson.fromJson(data, mFillObject.getClass());

} catch (Exception e) {

isOtherError = true;

e.printStackTrace();

}

return mFillObject;

}

/**

* Function

* Takes and keeps a reference of the passed context in order to Check whether Internet is available or not.

* @param context

* @return The return will be true if the internet is available and false if not.

public boolean check_Internet()

{

mConnectivityManager= (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE);

mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();

if(mNetworkInfo != null && mNetworkInfo.isConnectedOrConnecting())

{

isNetError = false;

return true;

}

else

{

isNetError = true;

return false;

}

public Object login( GetSecrateKey mGetFlag,String usenrname,String password ) {

nameValuePairs = new ArrayList<NameValuePair>();

nameValuePairs.add(new BasicNameValuePair("user_email", usenrname));

nameValuePairs.add(new BasicNameValuePair("user_password", password));

return postHttpURL(AllUrl.url+"user/login",nameValuePairs, mGetFlag);

}

Harshal Kalavadiya

Friday, 22 January 2016

Login Example with JSON web service Android

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