How to Build a QR Code Android App using Firebase?

By Ann Roberts On Apr 8, 2023

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

android:background="@drawable/back_qr"

android:gravity="center_horizontal"

tools:context=".MainActivity">

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="MY QR CODE"

android:textSize="24sp"

android:textStyle="bold"

android:fontFamily="@font/bold"

android:textColor="@color/white"

android:layout_marginTop="50dp"/>

<androidx.cardview.widget.CardView

android:layout_marginTop="35dp"

android:layout_width="290dp"

android:layout_height="350dp"

app:cardCornerRadius="25dp">

<ImageView

android:id="@+id/img_qr"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:scaleType="fitCenter">

</ImageView>

</androidx.cardview.widget.CardView>

<androidx.cardview.widget.CardView

android:layout_width="300dp"

android:layout_height="80dp"

android:layout_marginTop="20dp"

app:cardCornerRadius="50dp"

android:backgroundTint="#5754D3">

<RelativeLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content">

<com.google.android.material.floatingactionbutton.FloatingActionButton

android:layout_width="43dp"

android:layout_height="43dp"

android:id="@+id/btnQr"

android:layout_marginLeft="17dp"

android:layout_marginTop="20dp"

style="@style/floating_yellow">

</com.google.android.material.floatingactionbutton.FloatingActionButton>

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginTop="15dp"

android:text="Generate Your Qr Code"

android:layout_marginLeft="80dp"

android:textColor="@color/white"

android:textStyle="bold"

android:fontFamily="@font/bold"

android:textSize="16sp">

</TextView>

<EditText

android:id="@+id/edtgen"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:hint="Enter your Section Here"

android:background="@null"

android:layout_marginTop="45dp"

android:layout_marginLeft="80dp"

android:textColor="@color/white"

android:textColorHint="@color/white"

android:textSize="12sp" />

</RelativeLayout>

</androidx.cardview.widget.CardView>

<com.google.android.material.floatingactionbutton.FloatingActionButton

android:id="@+id/btnScan"

android:layout_width="50dp"

android:layout_height="50dp"

style="@style/floating_green"

android:layout_marginTop="60dp"

android:outlineSpotShadowColor="@color/black"

android:outlineAmbientShadowColor="@color/black"/>

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

android:background="@drawable/back_qr"

android:gravity="center_horizontal"

tools:context=".MainActivity">

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="MY QR CODE"

android:textSize="24sp"

android:textStyle="bold"

android:fontFamily="@font/bold"

android:textColor="@color/white"

android:layout_marginTop="50dp"/>

<androidx.cardview.widget.CardView

android:layout_marginTop="35dp"

android:layout_width="290dp"

android:layout_height="350dp"

app:cardCornerRadius="25dp">

<ImageView

android:id="@+id/img_qr"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:scaleType="fitCenter">

</ImageView>

</androidx.cardview.widget.CardView>

<androidx.cardview.widget.CardView

android:layout_width="300dp"

android:layout_height="80dp"

android:layout_marginTop="20dp"

app:cardCornerRadius="50dp"

android:backgroundTint="#5754D3">

<RelativeLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content">

<com.google.android.material.floatingactionbutton.FloatingActionButton

android:layout_width="43dp"

android:layout_height="43dp"

android:id="@+id/btnQr"

android:layout_marginLeft="17dp"

android:layout_marginTop="20dp"

style="@style/floating_yellow">

</com.google.android.material.floatingactionbutton.FloatingActionButton>

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginTop="15dp"

android:text="Generate Your Qr Code"

android:layout_marginLeft="80dp"

android:textColor="@color/white"

android:textStyle="bold"

android:fontFamily="@font/bold"

android:textSize="16sp">

</TextView>

<EditText

android:id="@+id/edtgen"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:hint="Enter your Section Here"

android:background="@null"

android:layout_marginTop="45dp"

android:layout_marginLeft="80dp"

android:textColor="@color/white"

android:textColorHint="@color/white"

android:textSize="12sp" />

</RelativeLayout>

</androidx.cardview.widget.CardView>

<com.google.android.material.floatingactionbutton.FloatingActionButton

android:id="@+id/btnScan"

android:layout_width="50dp"

android:layout_height="50dp"

style="@style/floating_green"

android:layout_marginTop="60dp"

android:outlineSpotShadowColor="@color/black"

android:outlineAmbientShadowColor="@color/black"/>

</LinearLayout>

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