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allow use external typeface in native code 

Summary:
Expose method to implement changing font family cache.  Like ide suggested in #4420 , this will helpful for using remote font file (use `Typeface#createFromFile` to load downloaded font file).
iOS's CoreText  already allow this in native code.
Closes https://github.com/facebook/react-native/pull/4696

Reviewed By: bestander

Differential Revision: D2911762

Pulled By: andreicoman11

fb-gh-sync-id: a931e2e711dd94fa0df6fdd066827756d862a4ba
This commit is contained in:
sospartan 2016-02-08 10:09:15 -08:00 committed by facebook-github-bot-5
parent 0a6604fa96
commit 17fcc9440f
1 changed files with 19 additions and 0 deletions
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19
ReactAndroid/src/main/java/com/facebook/react/views/text/ReactFontManager.java
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@ -72,6 +72,25 @@ public class ReactFontManager {
return typeface; return typeface;
} }
/**
* Add additional font family, or replace the exist one in the font memory cache.
* @param style
* @see {@link Typeface#DEFAULT}
* @see {@link Typeface#BOLD}
* @see {@link Typeface#ITALIC}
* @see {@link Typeface#BOLD_ITALIC}
*/
public void setTypeface(String fontFamilyName, int style, Typeface typeface) {
if (typeface != null) {
FontFamily fontFamily = mFontCache.get(fontFamilyName);
if (fontFamily == null) {
fontFamily = new FontFamily();
mFontCache.put(fontFamilyName, fontFamily);
}
fontFamily.setTypeface(style, typeface);
}
}
private static private static
@Nullable Typeface createTypeface( @Nullable Typeface createTypeface(
String fontFamilyName, String fontFamilyName,