Initial Commit

FirstPage/app/src/main/java/tn/cbe/nandhu1296/firstpage/Users.java

+package tn.cbe.nandhu1296.firstpage;
+
+import android.app.ProgressDialog;
+import android.content.Intent;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+import android.widget.TextView;
+
+import com.android.volley.Request;
+import com.android.volley.RequestQueue;
+import com.android.volley.Response;
+import com.android.volley.VolleyError;
+import com.android.volley.toolbox.StringRequest;
+import com.android.volley.toolbox.Volley;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+
+public class Users extends AppCompatActivity {
+    ListView usersList;
+    TextView noUsersText;
+    ArrayList<String> al = new ArrayList<>();
+    int totalUsers = 0;
+    ProgressDialog pd;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) { 
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_users);
+
+        usersList = (ListView)findViewById(R.id.usersList);
+        noUsersText = (TextView)findViewById(R.id.noUsersText);
+
+        pd = new ProgressDialog(Users.this);
+        pd.setMessage("Loading...");
+        pd.show();
+
+        String url = "https://chatapp-84987.firebaseio.com/users.json";
+
+        StringRequest request = new StringRequest(Request.Method.GET, url, new Response.Listener<String>(){
+            @Override
+            public void onResponse(String s) {
+                doOnSuccess(s);
+            }
+        },new Response.ErrorListener(){
+            @Override
+            public void onErrorResponse(VolleyError volleyError) {
+                System.out.println("" + volleyError);
+            }
+        });
+
+        RequestQueue rQueue = Volley.newRequestQueue(Users.this);
+        rQueue.add(request);
+
+        usersList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+                UserDetails.chatWith = al.get(position);
+                startActivity(new Intent(Users.this, Chat.class));
+            }
+        });
+    }
+
+    public void doOnSuccess(String s){
+        try {
+            JSONObject obj = new JSONObject(s);
+
+            Iterator i = obj.keys();
+            String key = "";
+
+            while(i.hasNext()){
+                key = i.next().toString();
+
+                if(!key.equals(UserDetails.username)) {
+                    al.add(key);
+                }
+
+                totalUsers++;
+            }
+
+        } catch (JSONException e) {
+            e.printStackTrace();
+        }
+
+        if(totalUsers <=1){
+            noUsersText.setVisibility(View.VISIBLE);
+            usersList.setVisibility(View.GONE);
+        }
+        else{
+            noUsersText.setVisibility(View.GONE);
+            usersList.setVisibility(View.VISIBLE);
+            usersList.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, al));
+        }
+
+        pd.dismiss();
+    }
+}

FirstPage/app/src/main/java/tn/cbe/nandhu1296/firstpage/login.java

+package tn.cbe.nandhu1296.firstpage;
+
+import android.app.ProgressDialog;
+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;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.android.volley.Request;
+import com.android.volley.RequestQueue;
+import com.android.volley.Response;
+import com.android.volley.VolleyError;
+import com.android.volley.toolbox.StringRequest;
+import com.android.volley.toolbox.Volley;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+public class login extends AppCompatActivity {
+    TextView register;
+    EditText username, password;
+    Button loginButton,fb1,google;
+    String user, pass;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_login);
+//goo();
+        register = (TextView)findViewById(R.id.register);
+        username = (EditText)findViewById(R.id.username);
+        password = (EditText)findViewById(R.id.password);
+        loginButton = (Button)findViewById(R.id.loginButton);
+//google =(Button)findViewById(R.id.button112) ;
+
+
+        register.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                startActivity(new Intent(login.this, Register.class));
+            }
+        });
+
+        loginButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                user = username.getText().toString();
+                pass = password.getText().toString();
+
+                if(user.equals("")){
+                    username.setError("can't be blank");
+                }
+                else if(pass.equals("")){
+                    password.setError("can't be blank");
+                }
+                else{
+                    String url = "https://chatapp-84987.firebaseio.com/users.json";
+                    final ProgressDialog pd = new ProgressDialog(login.this);
+                    pd.setMessage("Loading...");
+                    pd.show();
+
+                    StringRequest request = new StringRequest(Request.Method.GET, url, new Response.Listener<String>(){
+                        @Override
+                        public void onResponse(String s) {
+                            if(s.equals("null")){
+                                Toast.makeText(login.this, "user not found", Toast.LENGTH_LONG).show();
+                            }
+                            else{
+                                try {
+                                    JSONObject obj = new JSONObject(s);
+
+                                    if(!obj.has(user)){
+                                        Toast.makeText(login.this, "user not found", Toast.LENGTH_LONG).show();
+                                    }
+                                    else if(obj.getJSONObject(user).getString("password").equals(pass)){
+
+                                        UserDetails.username = user;
+                                        UserDetails.password = pass;
+                                        startActivity(new Intent(login.this, Users.class));
+                                    }
+                                    else {
+                                        Toast.makeText(login.this, "incorrect password", Toast.LENGTH_LONG).show();
+                                    }
+                                } catch (JSONException e) {
+                                    e.printStackTrace();
+                                }
+                            }
+
+                            pd.dismiss();
+                        }
+                    },new Response.ErrorListener(){
+                        @Override
+                        public void onErrorResponse(VolleyError volleyError) {
+                            System.out.println("" + volleyError);
+                            pd.dismiss();
+                        }
+                    });
+
+                    RequestQueue rQueue = Volley.newRequestQueue(login.this);
+                    rQueue.add(request);
+                }
+
+            }
+        });
+    }
+
+   /* private void goo() {
+        Intent inte= new Intent(Intent.ACTION_SEND);
+        inte.setType("text/plain");
+        inte.setPackage("com.facebook.katana");
+        startActivity(inte);
+    } */
+}

FirstPage/app/src/main/res/drawable-v21/ic_menu_camera.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M12,12m-3.2,0a3.2,3.2 0,1 1,6.4 0a3.2,3.2 0,1 1,-6.4 0" />
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M9,2L7.17,4H4c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2V6c0,-1.1 -0.9,-2 -2,-2h-3.17L15,2H9zm3,15c-2.76,0 -5,-2.24 -5,-5s2.24,-5 5,-5 5,2.24 5,5 -2.24,5 -5,5z" />
+</vector>

FirstPage/app/src/main/res/drawable-v21/ic_menu_gallery.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M22,16V4c0,-1.1 -0.9,-2 -2,-2H8c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2zm-11,-4l2.03,2.71L16,11l4,5H8l3,-4zM2,6v14c0,1.1 0.9,2 2,2h14v-2H4V6H2z" />
+</vector>

FirstPage/app/src/main/res/drawable-v21/ic_menu_manage.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M22.7,19l-9.1,-9.1c0.9,-2.3 0.4,-5 -1.5,-6.9 -2,-2 -5,-2.4 -7.4,-1.3L9,6 6,9 1.6,4.7C0.4,7.1 0.9,10.1 2.9,12.1c1.9,1.9 4.6,2.4 6.9,1.5l9.1,9.1c0.4,0.4 1,0.4 1.4,0l2.3,-2.3c0.5,-0.4 0.5,-1.1 0.1,-1.4z" />
+</vector>
\ No newline at end of file

FirstPage/app/src/main/res/drawable-v21/ic_menu_send.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M2.01,21L23,12 2.01,3 2,10l15,2 -15,2z" />
+</vector>

FirstPage/app/src/main/res/drawable-v21/ic_menu_share.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M18,16.08c-0.76,0 -1.44,0.3 -1.96,0.77L8.91,12.7c0.05,-0.23 0.09,-0.46 0.09,-0.7s-0.04,-0.47 -0.09,-0.7l7.05,-4.11c0.54,0.5 1.25,0.81 2.04,0.81 1.66,0 3,-1.34 3,-3s-1.34,-3 -3,-3 -3,1.34 -3,3c0,0.24 0.04,0.47 0.09,0.7L8.04,9.81C7.5,9.31 6.79,9 6,9c-1.66,0 -3,1.34 -3,3s1.34,3 3,3c0.79,0 1.5,-0.31 2.04,-0.81l7.12,4.16c-0.05,0.21 -0.08,0.43 -0.08,0.65 0,1.61 1.31,2.92 2.92,2.92 1.61,0 2.92,-1.31 2.92,-2.92s-1.31,-2.92 -2.92,-2.92z" />
+</vector>

FirstPage/app/src/main/res/drawable-v21/ic_menu_slideshow.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M4,6H2v14c0,1.1 0.9,2 2,2h14v-2H4V6zm16,-4H8c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2V4c0,-1.1 -0.9,-2 -2,-2zm-8,12.5v-9l6,4.5 -6,4.5z" />
+</vector>