Saving Data on Android

read
 and 
write
 access.
4. Add 
google-service.json
 to both 
starter
 and 
final
 projects.
raywenderlich.com
280

---

Note
: To see how to do the steps above, go back to 
"Chapter 11: Firebase 
Overview"
 and 
"Chapter 12: Introduction to Firebase Realtime Database"
.
Be sure to use the starter project from 
this chapter
 by opening the 
cloud-
storage
 folder and its 
starter
 project from the 
projects
 folder, rather than 
continuing with the final project you previously worked on. This chapter's 
starter project has a few things added to it, including placeholders for the code 
to add in this chapter.
Cloud Storage overview
Cloud Storage
 is another Firebase product used for saving files associated with your 
app. You can use it to store large documents or media files like images or videos.
Since Cloud Storage operates with large files, it's fundamental to provide robust 
network connection mechanisms and fallbacks. Cloud Storage handles all of the 
potential network problems for you. Depending on your connection, upload or 
download can take a while. If you lose the network connection in the middle of an 
upload or a download, the transfer will continue where it left off, after you reconnect 
to the network. This makes transferring your data very efficient.
Cloud Storage also has security features that will safely store your files away from 
the public. You can decide who can write data to and read data from the storage.
The foundations of Cloud Storage are the folders that you create to organize your 
data. You can then decide which users can access which folders.
There's more theory you could learn, but for now, you'll use the Firebase console to 
set up Cloud Storage and you'll use the 
WhatsUp
 app to store images and to 
download and display them to users on the app screen.
Saving Data on Android
Chapter 20: Cloud Storage
raywenderlich.com
281

---