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How to dynamically update a ListView on Android
This example demonstrates How to dynamically update a ListView on Android
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Step 2 − Add the following code to res/layout/activity_main.xml.
<?xml version = "1.0" encoding = "utf-8"?> <LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android" android:orientation = "vertical" android:layout_width = "match_parent" android:gravity = "center" android:layout_height = "match_parent"> <ListView android:id = "@+id/list" android:layout_width = "fill_parent" android:layout_height = "wrap_content" /> </LinearLayout>
In the above code, we have taken listview.
Step 3 − Add the following code to src/MainActivity.java
How to dynamically update a ListView on Android
Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen –
Now click on any item it will update the value to 100 as shown below –
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