This tutorial explains the way to create a simple ListView application which. I have solved your problem, you have to change the height of the linear layout because it is hidden when the app bar layout is applied.Your listview should placed below the app bar layout.I have changed android:layoutheight'300dp', android:layoutmarginTop'100dp' in your linear layout.Now your listview is appearing. It seems to be something with my adapter. ListView is the mostly using component in Android to display any list of items. This Button on-click would generate an AlertDialog with a ListView inside it. Below is the code for the activitymain.xml file. Navigate to the app > res > layout > activitymain.xml and add the below code to that file. Step 1 Create a new project in Android Studio, go to File New. Step 3: Working with the activitymain.xml file. : Attempt to invoke virtual method 'void ()' on a null object reference ArrayAdapter importIn android, you can delete multiple items from list.
After launching my application I have this error message
I'm new to Android Studio and I'm trying to implement a listview in a fragment with an adapter.
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