Import 7.app.ListView Tutorial With Example In Android Studio The code for the MainActivity.java is given below. Take note of the efficient use of ConstraintLayout in the above code. The code for the xml layout file activity_main.xml is given below.
Let’s create a basic application that displays a string in a TextView from an ArrayList after a delay. The output reflected in the application is shown below. Let’s set the above drawable in the ProgressBar present in the activity_main.xml. Generally it’s recommended to set it in multiples of 360. android:toDegrees value can be increased or decreased to change the speed of rotation. The attribute android:fillAfter indicates that the transformation is applied after the animation is over. The code for the progress_icon.xml RotateDrawable is given below. The tag is used to do so in the xml as shown below. A RotateDrawable is defined in the xml by encapsulating the current drawable and assigning it the angle and degrees of rotation. Oops! What’s wrong with the ProgressBar? Why isn’t it rotating? Well we need to set a RotateDrawable as the value of the attribute. The output that the above layout reflects in our application is given below. The code for activity_main.xml looks like this:
Let’s see what happens when we place an icon in the ProgressBar. The ProgressBar class contains an attribute indeterminateDrawable which replaces the default indicator with the drawable specified. Custom Progress Bar Android Studio Project Structure Now let’s try to add a ProgressBar that spins an icon indeterminately. We’ve set three circular ProgressBars that rotate endlessly in the above layout.
The code for the layout above should look like this: Let’s see the classical way of showing a loading icon in our application’s activity. This gives their application as well as logo brand a touch that makes them stand out from the rest. Going by the current trend, apps like Reddit, UBER, Foodpanda and Twitter have replaced the commonly used Progress Bar with their application’s icon as the loading icon. Most of the time, we end up using a ProgressBar as the loading icon while the data gets loaded. In this tutorial, we’ll create a custom progress bar by implementing a spinning logo icon in our application. Custom progress bar in android application gives it a personal touch.
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