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UNICODE MYANMAR FONT FOR ANDROID ANDROID
Android also added new requirements to the Android ecosystem CDD that takes a stronger stance in requiring Unicode, including a new subtag "Qaag" which OEMs should use as a locale designating non-Unicode Burmese. This means starting in Android Q, Android makes it easier for users to switch to Unicode: a user can now use a Unicode font to read Unicode and non-Unicode text for the first time. The results of the font enumeration are changed only by a system update, so you should cache them.Īndroid added a new Myanmar font to Android Q that is Unicode-compliant and capable of rendering both Unicode and non-Unicode Burmese (commonly known as Zawgyi), right out of the box. In Java, you can use SystemFonts.getAvailableFonts, or in the NDK, you can use ASystemFontIterator. If you want to get all available system fonts, you can do this with a new font enumeration API. If no exact style is supported, a font with the closest, most similar style is returned.If no font supports the given string, a font for Tofu (?), the missing glyph symbol, is returned.The FontMatcher API never returns nullptr: A simplified pseudocode example looks like this:Īuto = AFontMatcher_match("たすく a.k.a. The FontMatcher API returns us the font object and length. In Android Q, you can retrieve the supported system font for a string with the FontMatcher NDK API. Apps doing their own text rendering such as games, document viewers, or browsers need this information. With more than 100 languages supported by Android, and with different fonts supporting different character sets, knowing which system font can render a given character is not trivial. LineBackgroundSpan and LineHeightSpan interfaces now have standard implementations: LineBackgroundSpan.Standard and LineHeightSpan.Standard. TextAppearanceSpan now supports typeface, shadow settings, fontFeatureSettings and fontVariationSettings. The fontVariationSettings attribute can be set directly on the TextView in Android Q and in AppCompatTextView: TextAppearance now supports the fontVariationSettings attribute: To define the general font family (serif, sans-serif, or monospace) to be used when text is rendered using system fonts, use the setSystemFallback() method to set the system fallback font:Īndroid Q brings several updates to different text styling APIs: For example, putting Lato, Kosugi, and Material into the same font family creates an invalid configuration, as does putting two bold fonts into the same font family. When creating the font family, make sure you don’t put fonts that belong to different families in the same font family object nor the same style fonts into the same font family. Our icon font example can be implemented like this:īutton.typeface = Typeface.CustomFallbackBuilder(įont.Builder(assets, "icon_font.ttf").build() Android Q enables the creation of a typeface from multiple font families with a new API, Typeface.CustomFallbackBuilder, that allows adding up to 64 font families per typeface.
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Pre-Android Q, you can create a Typeface using a single font family. The Button class accepts only a single instance of a typeface to be set on the text. Use multiple custom fonts in the same TextViewĬonsider a button which mixes a custom font (Lato in this example) with an icon font: TextView.hyphenationFrequency = Layout.HYPHENATION_FREQUENCY_NORMALįind out more about how hyphenation works from this talk at Android Dev Summit 2018.
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You can set this in multiple ways:Īs a TextAppearance attribute in styles.xml: If you want to use hyphenation, you need to manually turn it on in your app by setting the hyphenation frequency to normal. Given that hyphenation often isn’t needed for all TextViews in an app, and because of the impact on performance, we decided to turn hyphenation off by default in Android Q and AppCompat v1.1.0. Hyphenation takes up to 70% of the time spent measuring text Our performance tests showed that when hyphenation is enabled, up to 70% of the time spent on measuring text is on hyphenation. Hyphenation is off by default in Android Q and AppCompat v1.1.0 We disabled hyphenation by default, enabled creating a typeface using multiple fonts or font families, exposed the list of fonts installed on the device, and improved some of the most-used text styling APIs. Posted by Florina Muntenescu, Android Developer Advocateĭisplaying text is an important task in most apps, so in Android Q we're continuing to introduce new features to support your needs and improve performance.