Source-code-Calculator-App-Demo-Calculator-App
https://drive.google.com/uc?export=download&id=1Triam8NAfKUIv9r0bv7HdexMDoO5Q7by

Source-code-Calculator-App-Calculator-Interface-Setup
https://drive.google.com/uc?export=download&id=1oRuhHmeGFxh0ZulHvoxLP_2-L8BY3IK4

Source-code-Calculator-App-Continue-with-Interface
https://drive.google.com/uc?export=download&id=1F3QCH7NP549OI8yJRdTJlUWc66Dr2A7O

Source-code-Calculator-App-Fine-Tuning-the-Layout
https://drive.google.com/uc?export=download&id=1-vRLc0uAAtx3VOsq5Z6xsL2_PpbZYUVp

Source-code-Calculator-App-Create-Landscape-Layout
https://drive.google.com/uc?export=download&id=1drjZ8hvudmnXb2Xa9dCRFxX4GFttdVs_

GitHub-Google-StyleGuide
https://github.com/google/styleguide

Source-code-Calculator-App-Coding-the-Calculator
https://drive.google.com/uc?export=download&id=1IxOqFt3hIXcAt3myDGl5XQpoqRDHtX75

Source-code-Calculator-App-Add-onClickListeners
https://drive.google.com/uc?export=download&id=1JxQuopqkxOWndwqkayZR7BN9nrAV5Q2t

Source-code-Calculator-App-Write-Perform-Operation-Function
https://drive.google.com/uc?export=download&id=1oaI63rHQwPVszFK7-s2dldZvT2ap_BbA

Source-code-Calculator-App-Bug-Fix-and-Code-Improvements
https://drive.google.com/uc?export=download&id=1B1Ao66GqoVDOxuwLMDJSIQG-bol5DTMM

Source-code-Calculator-App-Bug-Fix-Challlenge-and-Save-State
https://drive.google.com/uc?export=download&id=18LfksDfZCDFFZCt_93y9pDg_qfr47gcv

Source-code-Calculator-App-Widget-References-in-Kotlin
https://drive.google.com/uc?export=download&id=1V2Jg0DfKHNgmz96TybhQQarjVjNWo7lq

Guideline
https://developer.android.com/reference/android/support/constraint/Guideline.html

Source-code-Calculator-App-Guidelines
https://drive.google.com/uc?export=download&id=1IAWu7zjvJQsFCyY7ErPPULGd766Vtbac

Source-code-Calculator-App-Fixing-Landscape-Layout
https://drive.google.com/uc?export=download&id=1TDRP0bvlGb-pBX5x5tYrUoWtUxZluacU

Source-code-Calculator-App-Add-Neg-Button-to-Layout
https://drive.google.com/uc?export=download&id=1BSsWoK3V_iuIWT-19RwaFdfNik7IlSq5

Source-code-Calculator-App-Code-Changes-for-Neg-Button
https://drive.google.com/uc?export=download&id=1tddBcolUMMPbm6UIo_tYKPMYxr4zHAo9

Source-code-Calculator-App-Add-Neg-Button-to-Portrait
https://drive.google.com/uc?export=download&id=1peApoIePCNyAC6yg3JEQGoVWlqyxccni