Typeface
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This document discusses typefaces in Android and introduces a library called TypefaceHelper. It provides information on setting typefaces through the Android API and issues like leaking asset streams. It then demonstrates how to initialize and use TypefaceHelper to easily set typefaces across an application for TextViews, Activities, Fragments and more. The library aims to simplify and standardize typeface management in Android apps.
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Typeface
- 1. Typeface @KeithYokoma - Drivemode, Inc. potatotips #9
- 2. About myself • KeithYokoma • Keishin Yokomaku • Drivemode, Inc. • GitHub: https://github.com/KeithYokoma • e-Book: http://amzn.to/1mZNydv 2
- 3. Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface Typeface 3
- 5. Typeface • Cool • Nice • Beautiful • Android provides Roboto by default 5
- 6. Typeface • If you would like to change the typeface… TextView#setTypeface(Typeface) Paint#setTypeface(Typeface) Button#setTypeface(Typeface) EditText#setTypeface(Typeface) 6
- 7. Typeface • Read Typeface from your assets Typeface.createFromAsset(AssetManager, String) 7
- 8. Typeface • Read Typeface from your assets ! • Caution! Typeface.createFromAsset(AssetManager, String) Typeface.createFromAsset leaks asset stream! http://bit.ly/1rVOkir 8
- 9. Typeface • Workaround: cache private final Hashtable<String, Typeface> mCache = new Hashtable<String, Typeface>();! private final Application mApplication;! ! public synchronized Typeface get(String name) {! ! Typeface typeface = mCache.get(name);! ! if(typeface == null) {! ! ! try {! ! ! ! typeface = Typeface.createFromAsset(mApplication.getAssets(), name);! ! ! } catch (Exception exp) {! ! ! ! return null;! ! ! }! ! ! mCache.put(name, typeface);! ! }! ! return typeface;! } 9
- 10. Typeface • If you would like to change the typeface for ActionBar title Dialog button texts Dialog message text ActionBar tab text All text views in the view group blah blah blah… 10
- 11. Typeface • Got it, we introduce you our library! TypefaceHelper - http://bit.ly/1AxfqLz 11
- 12. Typeface • First, initialize the object in your Application. public class SampleApp extends Application {! ! @Override! ! public void onCreate() {! ! ! super.onCreate();! ! ! TypefaceHelper.initialize(this);! ! }! ! ! @Override! ! public void onTerminate() {! ! ! TypefaceHelper.destroy();! ! ! super.onTerminate();! ! }! } 12
- 13. Typeface • Set your Typeface. public class SampleActivity extends Activity {! ! ! TextView mTextView;! ! ! @Override! ! public void onCreate(Bundle icicle) {! ! ! // …! ! ! TypefaceHelper helper = TypefaceHelper.getInstance();! ! ! helper.setTypeface(this, “MyFont.ttf”);! ! ! helper.setTypeface(mTextView, “Another.ttf”);! ! }! } 13
- 14. Typeface • That's it. Just do it! 14
- 15. Typeface • You can set your Typeface to… • All views that is a child of TextView. • All TextViews that is belong to ViewGroup. • Activity, Fragment, Dialog. • Canvas(thanks to Nohana team!) 15
- 16. Typeface • Works in progress 1. OptionsMenu 2. Preferences 3. Set typeface by annotation 16
- 17. Typeface @KeithYokoma - Drivemode, Inc. potatotips #9