LoginActivity

 public class LoginActivity extends ActionBarActivity implements OnClickListener {

    private static final String TAG = "login_activity";

    Button signup, showpass;

    FormEditText email, password;
    ActionProcessButton sign_in;

    TextView terms_textview, singup_tv;

    private CallbackManager mCallbackManager;
    private LoginButton mLoginButton;
    private String Token = null;

    private CheckBox Remember_toggle;
    private API api;
    private ProgressDialog progress;
    private  boolean remember_me = false;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        FacebookSdk.sdkInitialize(getApplicationContext());
        setContentView(R.layout.activity_login);
        init();
    }

    private void init() {
        api = new API(LoginActivity.this);

        progress = new ProgressDialog(this);
        progress.setCancelable(false);
        progress.setMessage(getResources().getString(R.string.Loading));
        progress.setProgressStyle(ProgressDialog.STYLE_SPINNER);

        mLoginButton = (LoginButton) findViewById(R.id.login_button);
        email = (FormEditText) findViewById(R.id.emailtext);
        password = (FormEditText) findViewById(R.id.passwordtext);

        Remember_toggle = (CheckBox) findViewById(R.id.rememberme);
        if (api.getSetting(AppStaticMembers.TAG_REMEMBER) != null) {
            if (api.getSetting(AppStaticMembers.TAG_REMEMBER).equals("true")) {
                email.setText(api.getSetting(AppStaticMembers.TAG_EMAIL));
            }
        }

        Remember_toggle.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if (isChecked) {
                    remember_me = true;
                } else {
                    remember_me = false;

                }
            }
        });

        setupUI(findViewById(R.id.loginrelative));

        mCallbackManager = CallbackManager.Factory.create();


        mLoginButton.registerCallback(mCallbackManager, new FacebookCallback<LoginResult>() {
            @Override
            public void onSuccess(LoginResult loginResult) {

            }

            @Override
            public void onCancel() {

            }

            @Override
            public void onError(FacebookException e) {

            }
        });

        sign_in = (ActionProcessButton) findViewById(R.id.signin);
        sign_in.setMode(ActionProcessButton.Mode.PROGRESS);


        showpass = (Button) findViewById(R.id.showpass);


        password.setTransformationMethod(new PasswordTransformationMethod());


        email.addValidator(new OrValidator("This not E-mail",
                        new EmailValidator(null))
        );

        terms_textview = (TextView) findViewById(R.id.termstv);
        singup_tv = (TextView) findViewById(R.id.singuptv);

        String terms_text = "By using this application, you agree to the (terms and conditions)";
        int start = terms_text.indexOf("(");
        int end = terms_text.indexOf(")");
        terms_textview.setMovementMethod(LinkMovementMethod.getInstance());

        terms_textview.setText(terms_text, TextView.BufferType.SPANNABLE);
        Spannable mSpannable = (Spannable) terms_textview.getText();
        ClickableSpan mClickableSpan = new ClickableSpan() {
            @Override
            public void onClick(View widget) {
                Toast.makeText(LoginActivity.this, "text to show", Toast.LENGTH_LONG).show();
            }
        };
        mSpannable.setSpan(mClickableSpan, start, end + 1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

        String sign_up_tv = "Don't have account ? Sign Up Now";
        int start2 = sign_up_tv.indexOf("?");
        int end2 = sign_up_tv.indexOf("w");

        singup_tv.setMovementMethod(LinkMovementMethod.getInstance());
        singup_tv.setText(sign_up_tv, TextView.BufferType.SPANNABLE);
        Spannable mspannable2 = (Spannable) singup_tv.getText();
        ClickableSpan mclickspan2 = new ClickableSpan() {
            @Override
            public void onClick(View widget) {
                Intent intent = new Intent(LoginActivity.this, loginup.class);
                startActivity(intent);
            }
        };
        mspannable2.setSpan(mclickspan2, start2 + 1, end2 + 1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);


        sign_in.setOnClickListener(this);
        //signup.setOnClickListener(this);
        showpass.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {

                if (event.getAction() == MotionEvent.ACTION_DOWN)
                    password.setTransformationMethod(HideReturnsTransformationMethod.getInstance());


                else if (event.getAction() == MotionEvent.ACTION_UP)
                    password.setTransformationMethod(PasswordTransformationMethod.getInstance());


                return false;
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_login, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        mCallbackManager.onActivityResult(requestCode, resultCode, data);
    }

    @Override
    public void onClick(View v) {

        switch (v.getId()) {
            case R.id.signin:
                loginmethod();
                break;


        }
    }

    private void loginmethod() {

        if (api.isNetworkConneted(LoginActivity.this)) {

            if (email.testValidity() && password.testValidity()) {
                User user = new User();
                user.email = email.getText().toString();
                user.password = password.getText().toString();

                try {
                    progress.show();
                    api.SingIn(user, sign_response);
                } catch (Exception e) {
                    e.printStackTrace();
                }

            }
        } else {
            Toast.makeText(getApplicationContext() , getApplicationContext().getString(R.string.no_internet) , Toast.LENGTH_LONG).show();
        }


    }

    onHttpRequestListener sign_response = new onHttpRequestListener() {
        @Override
        public void onHttpResult(HTTPResponse response, String send_data) {

            progress.hide();
            API api = new API(LoginActivity.this);
            User user = null;
            Intent intent = null;
            if (response.response == ResponseType.SUCCESS) {

                api.SetSetting(AppStaticMembers.TAG_TOKEN, response.token);
                JSONArray jsonArray = (JSONArray) response.data;
                JsonParser jsonparser = new JsonParser();
                try {
                    user = jsonparser.getUserData(jsonArray.getJSONObject(0));
                    api.SetSetting(AppStaticMembers.TAG_EMAIL, user.getEmail());
                    api.SetSetting(AppStaticMembers.TAG_ID, user.getId());
                    api.SetSetting(AppStaticMembers.IS_LOGGEDIN , AppStaticMembers.TRUE);

                    if(remember_me){
                        api.SetSetting(AppStaticMembers.TAG_REMEMBER , AppStaticMembers.TRUE);
                    }

                } catch (JSONException e) {
                    e.printStackTrace();
                }
                if(user.getType() != null){
                    if (user.getType().equals(AppStaticMembers.TAG_MERCHANT)){
                        intent = new Intent(LoginActivity.this, MainActivity.class);
                    }else if(user.getType().equals(AppStaticMembers.TAG_CUSTOMER)){
                        intent = new Intent(LoginActivity.this, CustomerMainActivity.class);
                    }

                    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                    startActivity(intent);
                    finish();
                }else {
                    AlertManger.showAlertDialog(LoginActivity.this, "Error", "Invaild user", false);
                    //Toast.makeText(LoginActivity.this , "Invaild user" , Toast.LENGTH_LONG).show();
                }

            } else {
                AlertManger.showAlertDialog(LoginActivity.this , "Error" , response.value , false);
               // Toast.makeText(LoginActivity.this,  response.value, Toast.LENGTH_LONG).show();
            }

        }
    };

    public String get_request() {

        final StringBuilder stringBuilder = new StringBuilder();
        final String[] line = {null};
        final BufferedReader[] reader = {null};


        new Thread(new Runnable() {
            @Override
            public void run() {
                try {

                    List<NameValuePair> params = new ArrayList<NameValuePair>();
                    params.add(new BasicNameValuePair(AppStaticMembers.TAG_TOKEN, Token));

                    URL url = new URL(AppStaticMembers.BASE_URL);
                    HttpURLConnection connection = (HttpURLConnection) url.openConnection();

                    connection.setRequestMethod("GET");
                    connection.setReadTimeout(AppStaticMembers.WAIT_RESPONSE_TIMEOUT);

                    OutputStream outputStream = connection.getOutputStream();
                    BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8"));
                    writer.write(getQuery(params));
                    writer.flush();
                    writer.close();
                    outputStream.close();
                    connection.connect();
                    if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
                        reader[0] = new BufferedReader(new InputStreamReader(connection.getInputStream()));
                        while ((line[0] = reader[0].readLine()) != null) {
                            stringBuilder.append(line[0]);
                        }
                    }


                } catch (Exception e) {
                    e.printStackTrace();

                } finally {
                    if (reader[0] != null) {
                        try {
                            reader[0].close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                }

                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            String message = stringBuilder.toString();

                            Toast.makeText(LoginActivity.this, "token is : " + message, Toast.LENGTH_LONG).show();
                        } catch (Exception e) {

                        }

                    }
                });

            }

        }).start();
        return stringBuilder.toString();

    }

    private String getQuery(List<NameValuePair> params) throws UnsupportedEncodingException {
        StringBuilder result = new StringBuilder();
        boolean first = true;

        for (NameValuePair pair : params) {
            if (first)
                first = false;
            else
                result.append("&");

            result.append(URLEncoder.encode(pair.getName(), "UTF-8"));
            result.append("=");
            result.append(URLEncoder.encode(pair.getValue(), "UTF-8"));
        }

        return result.toString();
    }


    private void hideKeyboard(View view) {
        InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE);
        inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0);

    }

    private void setupUI(final View view) {

        if (!(view instanceof EditText)) {
            view.setOnTouchListener(new View.OnTouchListener() {
                @Override
                public boolean onTouch(View v, MotionEvent event) {

                    hideKeyboard(view);
                    return false;
                }
            });
        }

        if (view instanceof ViewGroup) {
            for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
                View innerView = ((ViewGroup) view).getChildAt(i);
                setupUI(innerView);
            }
        }

    }


    @Override
    protected void onResume() {
        super.onResume();
        //AppEventsLogger.activateApp(this);
        if (sign_in != null) {
            sign_in.setProgress(0);
        }
    }

    @Override
    protected void onStop() {
        super.onStop();
        // AppEventsLogger.deactivateApp(this);
    }
}