uppana.blogg.se - Android studio themes not working

With that in mind, replace in res/value/styles.xml with. So, that is what we will use in this tutorial. The latter approach is simplest, in that it accommodates “dark mode” scenarios and does not require that you deal with two themes or two sets of colors.

Use a single “day-night” theme with two sets of colors.

Ignore Google and stick with a light theme.

This means that you, the developer, have four main courses of action: In Android 10, Google is starting to steer developers towards having two themes: a light one for normal use and a “dark mode” one. This is not great for people using apps in dark places or at night, though. Historically, Google would steer developers towards a “light” theme, with dark text on a mostly-white background. By default, a DarkActionBar theme will add an app bar for us, which we do not need.Īnother consideration is whether the overall color scheme will be “light” or “dark”. However, we will be configuring the app bar ourselves with a Toolbar.

colorAccent will be used for certain pieces of widgets, such as the text-selection cursor in EditText widgets.

colorPrimaryDark mostly is used for coloring the status bar (the bar at the top of the screen that has the time, battery level, signal strength, etc.).

colorPrimary will be the dominant color and will be the background color of the app bar.And, it associates our three colors with three roles in the theme: This particular theme inherits from, as indicated in the parent attribute. By convention, style resources with “Theme” in the name are themes. Style resources can be applied either to widgets (to tailor that particular widget) or as a theme to an activity or entire application. Here, we see that we have a style resource named Theme.ToDo. T08-Nav/ToDo/app/src/main/res/values/styles.xml) setContentView ( AppCompatDelegateImplV9. ensureSubDecor ( AppCompatDelegateImplV9. createSubDecor ( AppCompatDelegateImplV9. AppCompat theme ( or descendant ) with this activity. IllegalStateException : You need to use a Theme. Fabric public class AboutActivity extends AppCompatActivity : java.

Here is my AboutActivity code import android.