Once you do that you will see a red line under the class name, hover your mouse over that error and Android Studio will warn you that you need to create a constructor.Īndroid custom adapter constructor. To be able to access the functions of ArrayAdapter we need to use extends with ArrayAdapter. Right click on the project package name → New → Java ClassĦ- I’ve named the custom adapter class as CustomAdapter.java. In this tutorial we will be using the following:ġ- Open up Android Studio and create a new project and give it a name, in our case we’ve named it (SpinnerImages), choose API 16 as the minimum SDK, then choose a blank activity, click “Finish” and wait for Android Studio to build your project.Ģ- Let’s create a new xml file and name it custom_spinner_row.xml, this file will have all the views that will be shown for each row inside Android spinner.ģ- Inside custom_spinner_row.xml will have 2 Android textviews and 1 Android imageview, the 2 textviews will be used for country name and population while the imageview will be used for the country flag.Ĥ- Open activity_main.xml file, here we will add an Android spinner.ĥ- Next we need to create a custom adapter, this adapter will be used to initialize the views inside custom_spinner_row.xml so that we can use it later with android spinner to show the data. The spinner will have a list of country names and flags, when you tap on any of the item an Android toast message will appear on the screen.īy the end of this article, we will have an app that looks like this.
MToastToShow = Toast.makeText( this, " Hello world, I am a toast.", Toast.Hi and welcome to another tutorial from Codingdemos, in this tutorial you will learn how create android custom spinner with images and text. Set the toast and duration int toastDurationInMilliSeconds = 10000 In this example, the countdown is used to display a toast message for a specific duration when a button is pressed: The CountDownTimer class schedules a countdown for a time in milliseconds with notifications at specified intervals until the countdown is finished. You can use a android.os.CountDownTimer to count down the time for which to display a toast. There is no way to directly change the duration for which the toast is shown using the show() method without reimplementing the whole Toast class in your application, but there is a workaround. But what if you have a long error message that needs to be shown for longer than that? Or if you need to show a countdown that updates every second?
The duration for which a toast is displayed on screen is unfortunately defined by a flag: you can either show it for a SHORT duration, which is 2 seconds or a LONG duration which is 3,5 seconds. Toast.makeText(context, " Hello world, I am a toast.", Toast.LENGTH_SHORT).show() Context context = getApplicationContext()
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