How to Update Data in Back4App Database in Android?
What we are going to build in this article?
We will be building a simple application in which we will be updating the previously added data in our Back4App database.
Step by Step Implementation
Step 1: Creating a new Activity for updating the data
For creating a new Activity navigate to the app > res > layout > Right-Click on it and click on New > then click on Empty Activity to create a new Activity, and we will name it as UpdateCourseActivity.
Step 2: Updating our Adapter class for opening a new activity on clicking the RecyclerView item
As we have created our Adapter class in the previous article for displaying the list of courses in Recycler View. In this article, we will add onClickListener() inside that Adapter class for RecyclerView item click listener. Add the following code snippet to the CourseRVAdapter.java file.
Below is the updated code for the CourseRVAdapter.java file.
Step 3: Working with the activity_update_course.xml file
Navigate to the app > res > layout > activity_update_course.xml and add the below code to it.
Step 4: Working with the UpdateCourseActivity.java file
Navigate to the app > java > your app’s package name > UpdateCourseActivity.java file and add the below code to it. Comments are added inside the code to understand the code in more detail.
Now run your app and try updating your course. Make sure you have previously added some courses to your list.
Below is the file structure in Android Studio after performing the Update operation:
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