Tutorial 4 - Data Retrieve

 

This is Sample Project Which you can improve UI design & Coding skills .

*This is data retrieve from database*

activity_home

HomeActivity

WordPress

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    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:orientation="vertical"
    tools:context=".HomeActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:background="@drawable/top_gradient" />

    <TextView

        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Covid Tracker"
        android:textStyle="bold"
        android:layout_marginTop="10dp"
        android:height="30dp"
        android:fontFamily="sans-serif-smallcaps"
        android:textAlignment="center"
        android:textSize="25dp"
        android:textColor="@color/white"
        android:gravity="center_horizontal" />

    <ScrollView

        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="10dp">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginLeft="10dp"
        android:layout_marginTop="40dp"
        android:layout_marginRight="10dp"
        android:orientation="vertical">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="30dp"
            android:text="Your Profile"
            android:fontFamily="@font/baloo"
            android:textAlignment="center"
            android:textSize="20dp"
            android:gravity="center_horizontal" />

        <ImageView
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:layout_gravity="center"
            android:layout_marginTop="20dp"
            android:src="@drawable/ic_user"
            android:scaleType="centerCrop"
            />

        <EditText
            android:id="@+id/profileName"
            android:layout_width="350dp"
            android:layout_height="45dp"
            android:editable="false"
            android:textColor="@color/textcolor"
            android:background="@drawable/input_style"
            android:drawableRight="@drawable/ic_user"
            android:hint="Your Name"
            android:layout_gravity="center"
            android:paddingRight="10dp"
            android:paddingLeft="10dp"
            android:layout_marginTop="10dp"
            android:fontFamily="@font/baloo"
            />

        <EditText
            android:id="@+id/profileEmail"
            android:layout_width="350dp"
            android:layout_height="45dp"
            android:editable="false"
            android:background="@drawable/input_style"
            android:drawableRight="@drawable/ic_email"
            android:hint="Your Email Address"
            android:textColor="@color/textcolor"
            android:layout_gravity="center"
            android:paddingRight="10dp"
            android:paddingLeft="10dp"
            android:layout_marginTop="10dp"
            android:fontFamily="@font/baloo"
            />

        <EditText
            android:id="@+id/profilePhone"
            android:layout_width="350dp"
            android:layout_height="45dp"
            android:editable="false"
            android:background="@drawable/input_style"
            android:drawableRight="@drawable/ic_phone"
            android:hint="Your Phone"
            android:textColor="@color/textcolor"
            android:layout_gravity="center"
            android:paddingRight="10dp"
            android:paddingLeft="10dp"
            android:layout_marginTop="10dp"
            android:fontFamily="@font/baloo"
            />

    </LinearLayout>
    </ScrollView>
    <Button
        android:id="@+id/btn_logout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/button_style"
        android:layout_alignParentEnd="true"
        android:text="Log Out"
        android:textSize="18dp"
        android:textStyle="bold"
        android:textColor="#FFF"
        android:layout_alignParentRight="true"
        android:layout_alignParentBottom="true"/>

</RelativeLayout>

package com.rrmchathura.myfirstapp;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.firestore.DocumentReference;
import com.google.firebase.firestore.DocumentSnapshot;
import com.google.firebase.firestore.EventListener;
import com.google.firebase.firestore.FirebaseFirestore;
import com.google.firebase.firestore.FirebaseFirestoreException;

public class HomeActivity extends AppCompatActivity {

private EditText fullName,email,phone;
FirebaseAuth fAuth;
FirebaseFirestore fStore;
String userID;

    private Button logout;

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

        fullName = findViewById(R.id.profileName);
        email = findViewById(R.id.profileEmail);
        phone = findViewById(R.id.profilePhone);

        logout = findViewById(R.id.btn_logout);

        fAuth = FirebaseAuth.getInstance();
        fStore = FirebaseFirestore.getInstance();

        userID = fAuth.getCurrentUser().getUid();

        DocumentReference documentReference = fStore.
           collection("users").document(userID);
        documentReference.
           addSnapshotListener(new EventListener<DocumentSnapshot>() {
            @Override
            public void onEvent(@Nullable  DocumentSnapshot documentSnapshot,
                                @Nullable FirebaseFirestoreException error) {
                phone.setText(documentSnapshot.getString("phone"));
                fullName.setText(documentSnapshot.getString("fName"));
                email.setText(documentSnapshot.getString("email"));
            }
        });

        logout.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                FirebaseAuth.getInstance().signOut();
                Toast.makeText(HomeActivity.
                        this,"Logeed Out!",Toast.LENGTH_SHORT).show();
                startActivity(new Intent(HomeActivity.
                        this,LoginActivity.class));
                finish();
            }
        });
    }
}