Top 5 Android Studio Plugins

Send Push Notification to Different Devices using OneSignal & Firebase -...

Send Push Notification to  Different Devices using OneSignal  - Firebase - part 3

Source Code of Part (1,2,3)



MainActivity:



package com.example.administrator.firebasetutorial;

import android.content.Intent;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.auth.UserProfileChangeRequest;
import com.onesignal.OneSignal;

public class MainActivity extends AppCompatActivity {
private FirebaseAuth mAuth;
private EditText email,password,name;
private Button signin, signup;
FirebaseUser user;
static String LoggedIn_User_Email;

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

OneSignal.startInit(this).init();



mAuth = FirebaseAuth.getInstance(); // important Call

signin = (Button)findViewById(R.id.signin);
signup = (Button)findViewById(R.id.signup);
email = (EditText)findViewById(R.id.etEmail);
password = (EditText)findViewById(R.id.etPassword);
name = (EditText)findViewById(R.id.etName);

//Check if User is Already LoggedIn
if(mAuth.getCurrentUser() != null)
{
//User NOT logged In
finish();
startActivity(new Intent(getApplicationContext(),SignIn.class));
}

user = mAuth.getCurrentUser();


//Setting the tags for Current User.
LoggedIn_User_Email =user.getEmail();
OneSignal.sendTag("User_ID", LoggedIn_User_Email);


signin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String getemail = email.getText().toString().trim();
String getepassword = password.getText().toString().trim();
callsignin(getemail,getepassword);

}
});

signup.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {

String getemail = email.getText().toString().trim();
String getepassword = password.getText().toString().trim();
callsignup(getemail,getepassword);

}
});

}

//Create Account
private void callsignup(String email,String password) {

mAuth.createUserWithEmailAndPassword(email, password)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
Log.d("TESTING", "Sign up Successful" + task.isSuccessful());

// If sign in fails, display a message to the user. If sign in succeeds
// the auth state listener will be notified and logic to handle the
// signed in user can be handled in the listener.
if (!task.isSuccessful()) {
Toast.makeText(MainActivity.this, "Signed up Failed", Toast.LENGTH_SHORT).show();
}
else
{
userProfile();
Toast.makeText(MainActivity.this, "Created Account", Toast.LENGTH_SHORT).show();
Log.d("TESTING", "Created Account");
}
}
});
}

//Set UserDisplay Name
private void userProfile()
{
FirebaseUser user = mAuth.getCurrentUser();
if(user!= null)
{
UserProfileChangeRequest profileUpdates = new UserProfileChangeRequest.Builder()
.setDisplayName(name.getText().toString().trim())
//.setPhotoUri(Uri.parse("https://example.com/jane-q-user/profile.jpg")) // here you can set image link also.
.build();

user.updateProfile(profileUpdates)
.addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task) {
if (task.isSuccessful()) {
Log.d("TESTING", "User profile updated.");
}
}
});
}
}


//Now start Sign In Process
//SignIn Process
private void callsignin(String email,String password) {

mAuth.signInWithEmailAndPassword(email, password)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
Log.d("TESTING", "sign In Successful:" + task.isSuccessful());

// If sign in fails, display a message to the user. If sign in succeeds
// the auth state listener will be notified and logic to handle the
// signed in user can be handled in the listener.
if (!task.isSuccessful()) {
Log.w("TESTING", "signInWithEmail:failed", task.getException());
Toast.makeText(MainActivity.this, "Failed", Toast.LENGTH_SHORT).show();
}
else {
Intent i = new Intent(MainActivity.this, SignIn.class);
finish();
startActivity(i);
}
}
});

}


}

ShowData:

package com.example.administrator.firebasetutorial;

import android.content.DialogInterface;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.bumptech.glide.Glide;
import com.bumptech.glide.load.engine.DiskCacheStrategy;
import com.firebase.ui.database.FirebaseRecyclerAdapter;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;

/**
* Created by Administrator on 16-03-2017.
*/

public class ShowData extends AppCompatActivity {

RecyclerView recyclerView;
FirebaseDatabase firebaseDatabase;
DatabaseReference myRef;
private FirebaseRecyclerAdapter<ShowDataItems, ShowDataViewHolder> mFirebaseAdapter;

public ShowData() {
// Required empty public constructor
}

@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.show_data_layout);

firebaseDatabase = FirebaseDatabase.getInstance();
myRef = FirebaseDatabase.getInstance().getReference("User_Details");

recyclerView = (RecyclerView)findViewById(R.id.show_data_recycler_view);
recyclerView.setLayoutManager(new LinearLayoutManager(ShowData.this));
Toast.makeText(ShowData.this, "Wait ! Fetching List...", Toast.LENGTH_SHORT).show();

}


@Override
protected void onStart() {
super.onStart();

//Log.d("LOGGED", "IN onStart ");
mFirebaseAdapter = new FirebaseRecyclerAdapter<ShowDataItems, ShowDataViewHolder>
(ShowDataItems.class, R.layout.show_data_single_item, ShowDataViewHolder.class, myRef)
{

public void populateViewHolder(final ShowDataViewHolder viewHolder, ShowDataItems model, final int position) {
viewHolder.Image_URL(model.getImage_URL());
viewHolder.Image_Title(model.getImage_Title());


//OnClick Item it will Delete data from Database
viewHolder.itemView.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(final View v) {
AlertDialog.Builder builder = new AlertDialog.Builder(ShowData.this);
builder.setMessage("Do you want to Delete this data ?").setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
int selectedItems = position;
mFirebaseAdapter.getRef(selectedItems).removeValue();
mFirebaseAdapter.notifyItemRemoved(selectedItems);
recyclerView.invalidate();
onStart();
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
AlertDialog dialog = builder.create();
dialog.setTitle("Confirm");
dialog.show();
}
});


}
};

recyclerView.setAdapter(mFirebaseAdapter);
}

//View Holder For Recycler View
public static class ShowDataViewHolder extends RecyclerView.ViewHolder {
private final TextView image_title;
private final ImageView image_url;



public ShowDataViewHolder(final View itemView) {
super(itemView);
image_url = (ImageView) itemView.findViewById(R.id.fetch_image);
image_title = (TextView) itemView.findViewById(R.id.fetch_image_title);


}

private void Image_Title(String title) {
image_title.setText(title);
}

private void Image_URL(String title) {
// image_url.setImageResource(R.drawable.loading);
Glide.with(itemView.getContext())
.load(title)
.crossFade()
.placeholder(R.drawable.loading)
.thumbnail(0.1f)
.diskCacheStrategy(DiskCacheStrategy.ALL)
.into(image_url);
}
}
}

ShowDataItems:

package com.example.administrator.firebasetutorial;

/**

 * Created by Administrator on 16-03-2017.

 */

//This is a data class, will help us to retrieve data from Database..

public class ShowDataItems {

    private String Image_URL,Image_Title;   //put this name same as Database Fields

    public ShowDataItems(String image_URL, String image_Title) {

        Image_URL = image_URL;

        Image_Title = image_Title;

    }

    public ShowDataItems()

    {

        //Require a Empty Constructor

    }

    public String getImage_URL() {

        return Image_URL;

    }

    public void setImage_URL(String image_URL) {

        Image_URL = image_URL;

    }

    public String getImage_Title() {

        return Image_Title;

    }

    public void setImage_Title(String image_Title) {

        Image_Title = image_Title;

    }

}

SignIn:

package com.example.administrator.firebasetutorial;

import android.content.Intent;

import android.os.AsyncTask;

import android.os.Bundle;

import android.os.StrictMode;

import android.support.annotation.Nullable;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

import com.google.firebase.auth.FirebaseAuth;

import com.google.firebase.auth.FirebaseUser;

import java.io.OutputStream;

import java.net.HttpURLConnection;

import java.net.URL;

import java.util.Scanner;

/**

 * Created by Administrator on 16-03-2017.

 */

public class SignIn extends AppCompatActivity {

    Button signout,upload_bttn,showData,notification;

    private FirebaseAuth mAuth;

    TextView username;

    @Override

    public void onCreate(@Nullable Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.welcome);

        mAuth = FirebaseAuth.getInstance(); // important Call

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

        username = (TextView) findViewById(R.id.tvName);

        upload_bttn = (Button)findViewById(R.id.upload);

        showData = (Button)findViewById(R.id.show_data);

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

        //Again check if the user is Already Logged in or Not

        if(mAuth.getCurrentUser() == null)

        {

            //User NOT logged In

            finish();

            startActivity(new Intent(getApplicationContext(),MainActivity.class));

        }

        //Fetch the Display name of current User

        FirebaseUser user = mAuth.getCurrentUser();

        if (user != null) {

            username.setText("Welcome, " + user.getDisplayName());

        }

        signout.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                mAuth.signOut();

                finish();

                startActivity(new Intent(getApplicationContext(), MainActivity.class));

            }

        });

        upload_bttn.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                startActivity(new Intent(getApplicationContext(),UploadInfo.class));

            }

        });

        showData.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                startActivity(new Intent(getApplicationContext(),ShowData.class));

            }

        });

        notification.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                sendNotification();

            }

        });

    }

    private void sendNotification()

    {

        AsyncTask.execute(new Runnable() {

            @Override

            public void run() {

                int SDK_INT = android.os.Build.VERSION.SDK_INT;

                if (SDK_INT > 8) {

                    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()

                            .permitAll().build();

                    StrictMode.setThreadPolicy(policy);

                    String send_email;

                    //This is a Simple Logic to Send Notification different Device Programmatically....

                    if (MainActivity.LoggedIn_User_Email.equals("user1@gmail.com")) {

                        send_email = "user2@gmail.com";

                    } else {

                        send_email = "user1@gmail.com";

                    }

                    try {

                        String jsonResponse;

                        URL url = new URL("https://onesignal.com/api/v1/notifications");

                        HttpURLConnection con = (HttpURLConnection) url.openConnection();

                        con.setUseCaches(false);

                        con.setDoOutput(true);

                        con.setDoInput(true);

                        con.setRequestProperty("Content-Type", "application/json; charset=UTF-8");

                        con.setRequestProperty("Authorization", "Basic YTUzMWE2M2UtMTZiYy00M2FhLWEyMjItYWQ5YWI1MDgzM2U2");

                        con.setRequestMethod("POST");

                        String strJsonBody = "{"

                                + "\"app_id\": \"0523d5af-d75a-4916-a8dd-3e9109e0f10b\","

                                + "\"filters\": [{\"field\": \"tag\", \"key\": \"User_ID\", \"relation\": \"=\", \"value\": \"" + send_email + "\"}],"

                                + "\"data\": {\"foo\": \"bar\"},"

                                + "\"contents\": {\"en\": \"English Message\"}"

                                + "}";

                        System.out.println("strJsonBody:\n" + strJsonBody);

                        byte[] sendBytes = strJsonBody.getBytes("UTF-8");

                        con.setFixedLengthStreamingMode(sendBytes.length);

                        OutputStream outputStream = con.getOutputStream();

                        outputStream.write(sendBytes);

                        int httpResponse = con.getResponseCode();

                        System.out.println("httpResponse: " + httpResponse);

                        if (httpResponse >= HttpURLConnection.HTTP_OK

                                && httpResponse < HttpURLConnection.HTTP_BAD_REQUEST) {

                            Scanner scanner = new Scanner(con.getInputStream(), "UTF-8");

                            jsonResponse = scanner.useDelimiter("\\A").hasNext() ? scanner.next() : "";

                            scanner.close();

                        } else {

                            Scanner scanner = new Scanner(con.getErrorStream(), "UTF-8");

                            jsonResponse = scanner.useDelimiter("\\A").hasNext() ? scanner.next() : "";

                            scanner.close();

                        }

                        System.out.println("jsonResponse:\n" + jsonResponse);

                    } catch (Throwable t) {

                        t.printStackTrace();

                    }

                }

            }

        });

    }

}

UploadInfo:

package com.example.administrator.firebasetutorial;

import android.Manifest;

import android.app.ProgressDialog;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.net.Uri;

import android.os.Build;

import android.os.Bundle;

import android.os.PersistableBundle;

import android.support.annotation.NonNull;

import android.support.annotation.Nullable;

import android.support.v4.content.ContextCompat;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.Button;

import android.widget.ImageView;

import android.widget.TextView;

import android.widget.Toast;

import com.bumptech.glide.Glide;

import com.bumptech.glide.load.engine.DiskCacheStrategy;

import com.firebase.client.Firebase;

import com.google.android.gms.tasks.OnSuccessListener;

import com.google.firebase.database.DatabaseReference;

import com.google.firebase.database.FirebaseDatabase;

import com.google.firebase.storage.FirebaseStorage;

import com.google.firebase.storage.StorageReference;

import com.google.firebase.storage.UploadTask;

/**

 * Created by Administrator on 16-03-2017.

 */

public class UploadInfo extends AppCompatActivity {

    Button select_image,upload_button;

    ImageView user_image;

    TextView title;

    public static final int READ_EXTERNAL_STORAGE = 0;

    private static final int GALLERY_INTENT = 2;

    private ProgressDialog mProgressDialog;

    private Firebase mRoofRef;

    private Uri mImageUri = null;

    private DatabaseReference mdatabaseRef;

    private StorageReference mStorage;

    @Override

    public void onCreate(@Nullable Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.upload_layout);

        Firebase.setAndroidContext(this);

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

        upload_button = (Button)findViewById(R.id.upload_bttn);

        user_image = (ImageView) findViewById(R.id.user_image);

        title = (TextView) findViewById(R.id.etTitle);

        //Initialize the Progress Bar

        mProgressDialog = new ProgressDialog(UploadInfo.this);

        //Select Image From External Storage..

        select_image.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v)

            {

                //Check for Runtime Permission

                if (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_EXTERNAL_STORAGE)

                        != PackageManager.PERMISSION_GRANTED)

                {

                    Toast.makeText(getApplicationContext(), "Call for Permission", Toast.LENGTH_SHORT).show();

                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)

                    {

                        requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, READ_EXTERNAL_STORAGE);

                    }

                }

                else

                {

                    callgalary();

                }

            }

        });

        //Initialize Firebase Database paths for database and Storage

        mdatabaseRef = FirebaseDatabase.getInstance().getReference();

        mRoofRef = new Firebase("https://fir-tutorial-5800f.firebaseio.com/").child("User_Details").push();  // Push will create new child every time we upload data

        mStorage = FirebaseStorage.getInstance().getReferenceFromUrl("gs://fir-tutorial-5800f.appspot.com/");

        //Click on Upload Button Title will upload to Database

        upload_button.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                final String mName = title.getText().toString().trim();

                if(mName.isEmpty())

                {

                    Toast.makeText(getApplicationContext(), "Fill all Field", Toast.LENGTH_SHORT).show();

                    return;

                }

                Firebase childRef_name = mRoofRef.child("Image_Title");

                childRef_name.setValue(mName);

                Toast.makeText(getApplicationContext(), "Updated Info", Toast.LENGTH_SHORT).show();

            }

        });

    }

    //Check for Runtime Permissions for Storage Access

    @Override

    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        switch (requestCode) {

            case READ_EXTERNAL_STORAGE:

                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED)

                    callgalary();

                return;

        }

        Toast.makeText(getApplicationContext(), "...", Toast.LENGTH_SHORT).show();

    }

    //If Access Granted gallery Will open

    private void callgalary() {

        Intent intent = new Intent(Intent.ACTION_PICK);

        intent.setType("image/*");

        startActivityForResult(intent, GALLERY_INTENT);

    }

    //After Selecting image from gallery image will directly uploaded to Firebase Database

    //and Image will Show in Image View

    @Override

    public void onActivityResult(int requestCode, int resultCode, Intent data) {

        super.onActivityResult(requestCode, resultCode, data);

        if (requestCode == GALLERY_INTENT && resultCode == RESULT_OK) {

            mImageUri = data.getData();

            user_image.setImageURI(mImageUri);

            StorageReference filePath = mStorage.child("User_Images").child(mImageUri.getLastPathSegment());

            mProgressDialog.setMessage("Uploading Image....");

            mProgressDialog.show();

            filePath.putFile(mImageUri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {

                @Override

                public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {

                    Uri downloadUri = taskSnapshot.getDownloadUrl();  //Ignore This error

                    mRoofRef.child("Image_URL").setValue(downloadUri.toString());

                    Glide.with(getApplicationContext())

                            .load(downloadUri)

                            .crossFade()

                            .placeholder(R.drawable.loading)

                            .diskCacheStrategy(DiskCacheStrategy.RESULT)

                            .into(user_image);

                    Toast.makeText(getApplicationContext(), "Updated.", Toast.LENGTH_SHORT).show();

                    mProgressDialog.dismiss();

                }

            });

        }

    }

}

Store, Retrieve, Delete Data & Images from Firebase with RecyclerView - ...

Store, Retrieve, Delete Data & Images from Firebase with RecyclerView - Firebase - part 2

MainActivity:



package com.example.administrator.firebasetutorial;



import android.content.Intent;

import android.support.annotation.NonNull;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

import android.widget.Toast;

import com.google.android.gms.tasks.OnCompleteListener;

import com.google.android.gms.tasks.Task;

import com.google.firebase.auth.AuthResult;

import com.google.firebase.auth.FirebaseAuth;

import com.google.firebase.auth.FirebaseUser;

import com.google.firebase.auth.UserProfileChangeRequest;



public class MainActivity extends AppCompatActivity {

    private FirebaseAuth mAuth;

    private EditText email,password,name;

    private Button signin, signup;



    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);



        mAuth = FirebaseAuth.getInstance(); // important Call



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

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

        email = (EditText)findViewById(R.id.etEmail);

        password = (EditText)findViewById(R.id.etPassword);

        name = (EditText)findViewById(R.id.etName);



        //Check if User is Already LoggedIn

        if(mAuth.getCurrentUser() != null)

        {

            //User NOT logged In

            finish();

            startActivity(new Intent(getApplicationContext(),SignIn.class));

        }



        signin.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

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

                String getepassword = password.getText().toString().trim();

                callsignin(getemail,getepassword);



            }

        });



        signup.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {



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

                String getepassword = password.getText().toString().trim();

                callsignup(getemail,getepassword);



            }

        });



    }



    //Create Account

    private void callsignup(String email,String password) {



        mAuth.createUserWithEmailAndPassword(email, password)

                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {

                    @Override

                    public void onComplete(@NonNull Task<AuthResult> task) {

                        Log.d("TESTING", "Sign up Successful" + task.isSuccessful());



                        // If sign in fails, display a message to the user. If sign in succeeds

                        // the auth state listener will be notified and logic to handle the

                        // signed in user can be handled in the listener.

                        if (!task.isSuccessful()) {

                            Toast.makeText(MainActivity.this, "Signed up Failed", Toast.LENGTH_SHORT).show();

                        }

                        else

                        {

                            userProfile();

                            Toast.makeText(MainActivity.this, "Created Account", Toast.LENGTH_SHORT).show();

                            Log.d("TESTING", "Created Account");

                        }

                    }

                });

    }



    //Set UserDisplay Name

    private void userProfile()

    {

        FirebaseUser user = mAuth.getCurrentUser();

        if(user!= null)

        {

            UserProfileChangeRequest profileUpdates = new UserProfileChangeRequest.Builder()

                    .setDisplayName(name.getText().toString().trim())

                    //.setPhotoUri(Uri.parse("https://example.com/jane-q-user/profile.jpg"))  // here you can set image link also.

                    .build();



            user.updateProfile(profileUpdates)

                    .addOnCompleteListener(new OnCompleteListener<Void>() {

                        @Override

                        public void onComplete(@NonNull Task<Void> task) {

                            if (task.isSuccessful()) {

                                Log.d("TESTING", "User profile updated.");

                            }

                        }

                    });

        }

    }





    //Now start Sign In Process

    //SignIn Process

    private void callsignin(String email,String password) {



        mAuth.signInWithEmailAndPassword(email, password)

                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {

                    @Override

                    public void onComplete(@NonNull Task<AuthResult> task) {

                        Log.d("TESTING", "sign In Successful:" + task.isSuccessful());



                        // If sign in fails, display a message to the user. If sign in succeeds

                        // the auth state listener will be notified and logic to handle the

                        // signed in user can be handled in the listener.

                        if (!task.isSuccessful()) {

                            Log.w("TESTING", "signInWithEmail:failed", task.getException());

                            Toast.makeText(MainActivity.this, "Failed", Toast.LENGTH_SHORT).show();

                        }

                        else {

                            Intent i = new Intent(MainActivity.this, SignIn.class);

                            finish();

                            startActivity(i);

                        }

                    }

                });



    }





}

SignIn:

package com.example.administrator.firebasetutorial;

import android.content.Intent;

import android.os.Bundle;

import android.support.annotation.Nullable;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

import com.google.firebase.auth.FirebaseAuth;

import com.google.firebase.auth.FirebaseUser;

/**

 * Created by Administrator on 16-03-2017.

 */

public class SignIn extends AppCompatActivity {

    Button signout, upload_bttn,showData;

    private FirebaseAuth mAuth;

    TextView username;

    @Override

    public void onCreate(@Nullable Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.welcome);

        mAuth = FirebaseAuth.getInstance(); // important Call

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

        upload_bttn = (Button)findViewById(R.id.upload);

        showData = (Button)findViewById(R.id.show_data);

        username = (TextView) findViewById(R.id.tvName);

        //Again check if the user is Already Logged in or Not

        if(mAuth.getCurrentUser() == null)

        {

            //User NOT logged In

            finish();

            startActivity(new Intent(getApplicationContext(),MainActivity.class));

        }

        //Fetch the Display name of current User

        FirebaseUser user = mAuth.getCurrentUser();

        if (user != null) {

            username.setText("Welcome, " + user.getDisplayName());

        }

        signout.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                mAuth.signOut();

                finish();

                startActivity(new Intent(getApplicationContext(), MainActivity.class));

            }

        });

        upload_bttn.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                startActivity(new Intent(getApplicationContext(),Uploadinfo.class));

            }

        });

        showData.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                startActivity(new Intent(getApplicationContext(),ShowData.class));

            }

        });

    }

}

ShowData:

package com.example.administrator.firebasetutorial;

import android.content.DialogInterface;

import android.content.Intent;

import android.net.Uri;

import android.os.Bundle;

import android.support.annotation.Nullable;

import android.support.v7.app.AlertDialog;

import android.support.v7.app.AppCompatActivity;

import android.support.v7.widget.LinearLayoutManager;

import android.support.v7.widget.RecyclerView;

import android.view.View;

import android.widget.ImageView;

import android.widget.TextView;

import android.widget.Toast;

import com.bumptech.glide.Glide;

import com.bumptech.glide.load.engine.DiskCacheStrategy;

import com.firebase.ui.database.FirebaseRecyclerAdapter;

import com.google.firebase.database.DatabaseReference;

import com.google.firebase.database.FirebaseDatabase;

import static android.R.attr.direction;

import static java.security.AccessController.getContext;

/**

 * Created by Administrator on 16-03-2017.

 */

public class ShowData extends AppCompatActivity {

    RecyclerView recyclerView;

    FirebaseDatabase firebaseDatabase;

    DatabaseReference myRef;

    private FirebaseRecyclerAdapter<ShowDataItems, ShowDataViewHolder> mFirebaseAdapter;

    public ShowData() {

        // Required empty public constructor

    }

    @Override

    public void onCreate(@Nullable Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.show_data_layout);

        firebaseDatabase = FirebaseDatabase.getInstance();

       // myRef = firebaseDatabase.getReference("User_Details");

        myRef = FirebaseDatabase.getInstance().getReference("User_Details");

        recyclerView = (RecyclerView)findViewById(R.id.show_data_recycler_view);

        recyclerView.setLayoutManager(new LinearLayoutManager(ShowData.this));

        Toast.makeText(ShowData.this, "Wait !  Fetching List...", Toast.LENGTH_SHORT).show();

    }

    @Override

    public void onStart() {

        super.onStart();

        //Log.d("LOGGED", "IN onStart ");

        mFirebaseAdapter = new FirebaseRecyclerAdapter<ShowDataItems, ShowDataViewHolder>(ShowDataItems.class, R.layout.show_data_single_item, ShowDataViewHolder.class, myRef) {

            public void populateViewHolder(final ShowDataViewHolder viewHolder, ShowDataItems model, final int position) {

                viewHolder.Image_URL(model.getImage_URL());

                viewHolder.Image_Title(model.getImage_Title());

                //OnClick Item

                viewHolder.itemView.setOnClickListener(new View.OnClickListener() {

                    @Override

                    public void onClick(final View v) {

                        AlertDialog.Builder builder = new AlertDialog.Builder(ShowData.this);

                        builder.setMessage("Do you want to Delete this data ?").setCancelable(false)

                                .setPositiveButton("Yes", new DialogInterface.OnClickListener() {

                                    @Override

                                    public void onClick(DialogInterface dialog, int which) {

                                        int selectedItems = position;

                                        mFirebaseAdapter.getRef(selectedItems).removeValue();

                                        mFirebaseAdapter.notifyItemRemoved(selectedItems);

                                        recyclerView.invalidate();

                                        onStart();

                                    }

                                })

                                .setNegativeButton("No", new DialogInterface.OnClickListener() {

                                    @Override

                                    public void onClick(DialogInterface dialog, int which) {

                                        dialog.cancel();

                                    }

                                });

                        AlertDialog dialog = builder.create();

                        dialog.setTitle("Confirm");

                        dialog.show();

                    }

                });

            }

        };

        recyclerView.setAdapter(mFirebaseAdapter);

    }

    //View Holder For Recycler View

    public static class ShowDataViewHolder extends RecyclerView.ViewHolder {

        private final TextView image_title;

        private final ImageView image_url;

        public ShowDataViewHolder(final View itemView) {

            super(itemView);

            image_url = (ImageView) itemView.findViewById(R.id.fetch_image);

            image_title = (TextView) itemView.findViewById(R.id.fetch_image_title);

        }

        private void Image_Title(String title) {

            image_title.setText(title);

        }

        private void Image_URL(String title) {

           // image_url.setImageResource(R.drawable.loading);

            Glide.with(itemView.getContext())

                    .load(title)

                    .crossFade()

                    .placeholder(R.drawable.loading)

                    .thumbnail(0.1f)

                    .diskCacheStrategy(DiskCacheStrategy.ALL)

                    .into(image_url);

        }

    }

}

ShowDataItems:

package com.example.administrator.firebasetutorial;

/**

 * Created by Administrator on 16-03-2017.

 */

public class ShowDataItems {

    private String Image_URL,Image_Title;  //put this name same as Database Fields

    public ShowDataItems(String image_URL, String image_title) {

        Image_URL = image_URL;

        Image_Title = image_title;

    }

 public ShowDataItems()

 {

     //Empty Constructor Needed

 }

    public String getImage_URL() {

        return Image_URL;

    }

    public void setImage_URL(String image_URL) {

        Image_URL = image_URL;

    }

    public String getImage_Title() {

        return Image_Title;

    }

    public void setTitle(String title) {

        Image_Title = title;

    }

}

UploadInfo:

package com.example.administrator.firebasetutorial;

import android.Manifest;

import android.app.ProgressDialog;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.net.Uri;

import android.os.Build;

import android.os.Bundle;

import android.support.annotation.NonNull;

import android.support.annotation.Nullable;

import android.support.v4.content.ContextCompat;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.Button;

import android.widget.ImageView;

import android.widget.TextView;

import android.widget.Toast;

import com.bumptech.glide.Glide;

import com.bumptech.glide.load.engine.DiskCacheStrategy;

import com.firebase.client.Firebase;

import com.google.android.gms.tasks.OnSuccessListener;

import com.google.firebase.database.DatabaseReference;

import com.google.firebase.database.FirebaseDatabase;

import com.google.firebase.storage.FirebaseStorage;

import com.google.firebase.storage.StorageReference;

import com.google.firebase.storage.UploadTask;

/**

 * Created by Administrator on 16-03-2017.

 */

public class Uploadinfo extends AppCompatActivity {

    Button select_image,upload_button;

    ImageView user_image;

    TextView title;

    public static final int READ_EXTERNAL_STORAGE = 0;

    private static final int GALLERY_INTENT = 2;

    private ProgressDialog mProgressDialog;

    private Firebase mRoofRef;

    private Uri mImageUri = null;

    private DatabaseReference mdatabaseRef;

    private StorageReference mStorage;

    @Override

    public void onCreate(@Nullable Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.upload_layout);

        Firebase.setAndroidContext(this);

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

        upload_button = (Button)findViewById(R.id.upload_bttn);

        user_image = (ImageView) findViewById(R.id.user_image);

        title = (TextView) findViewById(R.id.etTitle);

        //Initialize the Progress Bar

        mProgressDialog = new ProgressDialog(Uploadinfo.this);

        //Select image from External Storage...

        select_image.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v)

            {

                //Check for Runtime Permission

                if (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_EXTERNAL_STORAGE)

                        != PackageManager.PERMISSION_GRANTED)

                {

                    Toast.makeText(getApplicationContext(), "Call for Permission", Toast.LENGTH_SHORT).show();

                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)

                    {

                        requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, READ_EXTERNAL_STORAGE);

                    }

                }

                else

                    {

                    callgalary();

                }

            }

        });

        //Initialize Firebase Database paths for database and Storage

        mdatabaseRef = FirebaseDatabase.getInstance().getReference();

        mRoofRef = new Firebase("https://fir-tutorial-5800f.firebaseio.com/").child("User_Details").push();  // Push will create new child every time we upload data

        mStorage = FirebaseStorage.getInstance().getReferenceFromUrl("gs://fir-tutorial-5800f.appspot.com/");

        //Click on Upload Button Title will upload to Database

        upload_button.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                final String mName = title.getText().toString().trim();

                if(mName.isEmpty())

                {

                    Toast.makeText(getApplicationContext(), "Fill all Field", Toast.LENGTH_SHORT).show();

                    return;

                }

                Firebase childRef_name = mRoofRef.child("Image_Title");

                childRef_name.setValue(mName);

                Toast.makeText(getApplicationContext(), "Updated Info", Toast.LENGTH_SHORT).show();

            }

        });

    }

    //Check for Runtime Permissions for Storage Access

    @Override

    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        switch (requestCode) {

            case READ_EXTERNAL_STORAGE:

                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED)

                    callgalary();

                return;

        }

        Toast.makeText(getApplicationContext(), "...", Toast.LENGTH_SHORT).show();

    }

    //If Access Granted gallery Will open

    private void callgalary() {

        Intent intent = new Intent(Intent.ACTION_PICK);

        intent.setType("image/*");

        startActivityForResult(intent, GALLERY_INTENT);

    }

    //After Selecting image from gallery image will directly uploaded to Firebase Database

    //and Image will Show in Image View

    @Override

    public void onActivityResult(int requestCode, int resultCode, Intent data) {

        super.onActivityResult(requestCode, resultCode, data);

        if (requestCode == GALLERY_INTENT && resultCode == RESULT_OK) {

            mImageUri = data.getData();

            user_image.setImageURI(mImageUri);

            StorageReference filePath = mStorage.child("User_Images").child(mImageUri.getLastPathSegment());

            mProgressDialog.setMessage("Uploading Image....");

            mProgressDialog.show();

            filePath.putFile(mImageUri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {

                @Override

                public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {

                    Uri downloadUri = taskSnapshot.getDownloadUrl();  //Ignore This error

                    mRoofRef.child("Image_URL").setValue(downloadUri.toString());

                    Glide.with(getApplicationContext())

                            .load(downloadUri)

                            .crossFade()

                            .placeholder(R.drawable.loading)

                            .diskCacheStrategy(DiskCacheStrategy.RESULT)

                            .into(user_image);

                    Toast.makeText(getApplicationContext(), "Updated.", Toast.LENGTH_SHORT).show();

                    mProgressDialog.dismiss();

                }

            });

        }

    }

}

Firebase Tutorial Authentication - Part 1

Main Activity:

package com.example.administrator.firebasetutorial;

import android.content.Intent;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.auth.UserProfileChangeRequest;
import com.onesignal.OneSignal;

public class MainActivity extends AppCompatActivity {
private FirebaseAuth mAuth;
private EditText email,password,name;
private Button signin, signup;
static String LoggedIn_User_Email;

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

mAuth = FirebaseAuth.getInstance(); // important Call

signin = (Button)findViewById(R.id.signin);
signup = (Button)findViewById(R.id.signup);
email = (EditText)findViewById(R.id.etEmail);
password = (EditText)findViewById(R.id.etPassword);
name = (EditText)findViewById(R.id.etName);

//Check if User is Already LoggedIn
if(mAuth.getCurrentUser() != null)
{
//User NOT logged In
finish();
startActivity(new Intent(getApplicationContext(),SignIn.class));
}




signin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String getemail = email.getText().toString().trim();
String getepassword = password.getText().toString().trim();
callsignin(getemail,getepassword);

}
});

signup.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {

String getemail = email.getText().toString().trim();
String getepassword = password.getText().toString().trim();
callsignup(getemail,getepassword);

}
});

}

//Create Account
private void callsignup(String email,String password) {

mAuth.createUserWithEmailAndPassword(email, password)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
Log.d("TESTING", "Sign up Successful" + task.isSuccessful());

// If sign in fails, display a message to the user. If sign in succeeds
// the auth state listener will be notified and logic to handle the
// signed in user can be handled in the listener.
if (!task.isSuccessful()) {
Toast.makeText(MainActivity.this, "Signed up Failed", Toast.LENGTH_SHORT).show();
}
else
{
userProfile();
Toast.makeText(MainActivity.this, "Created Account", Toast.LENGTH_SHORT).show();
Log.d("TESTING", "Created Account");
}
}
});
}

//Set UserDisplay Name
private void userProfile()
{
FirebaseUser user = mAuth.getCurrentUser();
if(user!= null)
{
UserProfileChangeRequest profileUpdates = new UserProfileChangeRequest.Builder()
.setDisplayName(name.getText().toString().trim())
//.setPhotoUri(Uri.parse("https://example.com/jane-q-user/profile.jpg")) // here you can set image link also.
.build();

user.updateProfile(profileUpdates)
.addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task) {
if (task.isSuccessful()) {
Log.d("TESTING", "User profile updated.");
}
}
});
}
}


//Now start Sign In Process
//SignIn Process
private void callsignin(String email,String password) {

mAuth.signInWithEmailAndPassword(email, password)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
Log.d("TESTING", "sign In Successful:" + task.isSuccessful());

// If sign in fails, display a message to the user. If sign in succeeds
// the auth state listener will be notified and logic to handle the
// signed in user can be handled in the listener.
if (!task.isSuccessful()) {
Log.w("TESTING", "signInWithEmail:failed", task.getException());
Toast.makeText(MainActivity.this, "Failed", Toast.LENGTH_SHORT).show();
}
else {
Intent i = new Intent(MainActivity.this, SignIn.class);
finish();
startActivity(i);
}
}
});

}


}




Sign IN:

package com.example.administrator.firebasetutorial;

import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.StrictMode;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;

import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Scanner;

/**
* Created by Administrator on 16-03-2017.
*/

public class SignIn extends AppCompatActivity {
Button signout,upload_bttn,showData,notification;
private FirebaseAuth mAuth;
TextView username;

@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.welcome);

mAuth = FirebaseAuth.getInstance(); // important Call
signout = (Button)findViewById(R.id.signout);
username = (TextView) findViewById(R.id.tvName);




//Again check if the user is Already Logged in or Not
if(mAuth.getCurrentUser() == null)
{
//User NOT logged In
finish();
startActivity(new Intent(getApplicationContext(),MainActivity.class));
}

//Fetch the Display name of current User
FirebaseUser user = mAuth.getCurrentUser();

if (user != null) {
username.setText("Welcome, " + user.getDisplayName());
}


signout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mAuth.signOut();
finish();
startActivity(new Intent(getApplicationContext(), MainActivity.class));
}
});
}
}