
learn to input a conversion amount with a bottom sheet keyboard, wire rate item clicks to open it, validate input, and update the rates list via a viewmodel state.
Create a user base amount class, store the base currency and amount in shared preferences, and wire this data through a use case, the view model, and rates updates.
Build a standalone, reusable currency flag component that draws a flag from a currency code via a country service. Use Glide for image loading.
Enhance the app interface with a custom app bar and coordinated layout. Implement locale-aware currency formatting, a one-unit rate reference, and updated theming and menus.
Build a time series line chart by implementing the get time series rates use case, wiring it to the chart view model, and rendering data via a custom view.
Define dimension resources and paints, then render a grid and labels on the chart, adjusting margins, offsets, and label measurements for correct spacing.
Learn to build an Android currency selector with two dropdowns and a swap button, using a modal bottom sheet and a shared ViewModel to update chart settings.
Learn to handle view touch events on a chart, tap to display the nearest rate with date, and update the user interface via a chart view callback.
Add a loading state to the chart view by overlaying a semi-transparent foreground. Show an indeterminate progress indicator, disable touch during loading, and implement fade in and fade out animations.
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