IssueTracker

removed the dup; this is possibly about how android spans work on empty strings.

• the calculation in the composable level seemed correct but the layout was not
• it happens for a new line as well
• one problem with both includeFontPadding true/false is that the cursor height is possibly can be visually improved to match the text ascent/descent rather than line top/bottom (might be challenging)

I do not fully understand your points, though I was wondering if a similar "trick" to measure "HHHHHHHHHHH" cannot be used here, because if I'm not mistaken the cursor gets drawn by text layout measuring on empty string.

StaticLayout does not call LineHeightSpan's for empty sstring (or the empty final line at the end of the string - a string that ends with "\n")

Thank you for fixing this. Will be this cherry-picked to 1.2.x release?

I think this will be in a 1.3 alpha/beta release (https://developer.android.com/jetpack/androidx/releases/compose-ui#1.3.0-alpha02)

unfortunately we cant cherry pick it into an older release.

I handled that, I used setSystemBarsAppearance and it works but why do I need to do that?

The splash screen is copied to your application when you use the listener, and then belongs to your application, using the same theme as the postSplashScreenTheme, so you need to ensure your app theme matches the starting theme for a seamless transition. We might add an helper method to be sure the right window attribute can be set when you use a listener.

If you have any other question or comment to make, I'll keep the bug open for the day, otherwise I'll close it as work as intended.

I think the helper method will be useful. I don't have more questions.

Thank you for your feedback

After further investigation, I found a suitable fix. Hera is a demo with and without the fix

Do you know when a fix will be available?

I can't make any promises but I estimate within the 2 next weeks if no other bug arise.

I don't think this issue has been fixed entirely. Yes it seems the style is applied, but it breaks the automatic colour change of the navigation bar and doesn't apply the scrim behind 3 button navigation.

Follow these steps to reproduce.

1. Create a new project (I used a bottom tab project for my base)
2. Implement basic instructions for SplashScreen (have some code snippits below)
3. Implement edge-to-edge as in this document https://developer.android.com/develop/ui/views/layout/edge-to-edge#java If your activity has a dark background, you'd think to set android:windowLightNavigationBar to false, but setting this attribute will stop the automatic contrast feature for the bottom buttons.

Important to note, this is NOT an issue when using the gesture based navigation. Seems to only impact 2 & 3 button navigation.

Here is some code to kickstart.

themes.xml

<resources xmlns:tools="http://schemas.android.com/tools">
    <!-- Base application theme. -->
    <style name="Theme.MyApplication" parent="Theme.AppCompat.DayNight.NoActionBar">
        <!-- Primary brand color. -->
        <item name="colorPrimary">@color/purple_500</item>
        <item name="colorPrimaryVariant">@color/purple_700</item>
        <item name="colorOnPrimary">@color/white</item>
        <!-- Secondary brand color. -->
        <item name="colorSecondary">@color/teal_200</item>
        <item name="colorSecondaryVariant">@color/teal_700</item>
        <item name="colorOnSecondary">@color/black</item>
        <!-- Status bar color. -->
        <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
        <item name="android:navigationBarColor">
            @android:color/transparent
        </item>
        <item name="android:windowLightNavigationBar">true</item>
        
    </style>

    <style name="Theme.App.Starting" parent="Theme.SplashScreen">
        <item name="windowSplashScreenBackground">@color/splashscreen_bg</item>
        <item name="postSplashScreenTheme">@style/Theme.MyApplication</item>

    </style>
</resources>

MainActivity

SplashScreen splashScreen = SplashScreen.installSplashScreen(this);
        super.onCreate(savedInstanceState);
        WindowCompat.setDecorFitsSystemWindows(getWindow(), false);

        binding = ActivityMainBinding.inflate(getLayoutInflater());
        setContentView(binding.getRoot());

        splashScreen.setOnExitAnimationListener(splashScreenViewProvider -> {
            final View splashScreenView = splashScreenViewProvider.getView();

            splashScreenView
                    .animate()
                    .setDuration(0)
                    // Hack to avoid automatic layout transitions
                    .setStartDelay(Math.min(0, 0))
                    .alpha(0.0f)
                    .setInterpolator(new AccelerateInterpolator())
                    .setListener(new AnimatorListenerAdapter() {
                        @Override
                        public void onAnimationEnd(Animator animation) {
                            super.onAnimationEnd(animation);
                            splashScreenViewProvider.remove();
                        }
                    }).start();
        });

Can confirm. It only works in version 1.0.0-alpha02. All other version after are broken when using exit animation.