How to create a Custom Dialog box in android?

Create Xml Layout

   
        


    <ImageView
        android:id="@+id/logo"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:src="@drawable/ic_cloud_done"/>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:background="@color/white">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="@string/app_name"
            android:gravity="center_horizontal"
            android:textSize="18sp"
            android:padding="20dp"
            android:textColor="@color/black"/>
    </LinearLayout>


    <TextView
        android:id="@+id/dialog_ok"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Succesful"
        android:gravity="center_horizontal"
        android:textSize="18sp"
        android:textStyle="bold"
        android:padding="16dp"
        android:textColor="@color/white"/>

   
    
 

Java

  
        
    
        /* Custom Dialog */
        Dialog dialog = new Dialog(this);
        dialog.setContentView(R.layout.custom_dialog);
        dialog.setCancelable(false);
        dialog.show();

        TextView textView = dialog.findViewById(R.id.dialog_ok);

        textView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                dialog.dismiss();
                Toast.makeText(MainActivity.this, "Working", Toast.LENGTH_SHORT).show();
            }
        });