compile 'com.norbsoft.typefacehelper:library:0.9.0'

@Override public void onCreate() {
	super.onCreate();
	// Initialize typeface helper
	TypefaceCollection typeface = new TypefaceCollection.Builder()
	        .set(Typeface.NORMAL, Typeface.createFromAsset(getAssets(), "fonts/ubuntu/Ubuntu-R.ttf"))
	        .create();
	TypefaceHelper.init(typeface);
}

@Override protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_layout);
	// Apply custom typefaces!
	TypefaceHelper.typeface(this);
}   

import static com.norbsoft.typefacehelper.TypefaceHelper.typeface; 

View v = inflater.inflate(R.layout.myview);
typeface(v);

ActionBarHelper.setTitle(
	getSupportActionBar(), 
	typeface(this, R.string.lorem_ipsum_title));

listView.setAdapter(new BaseAdapter() {
    String[] items = { "Item 1", "Item 2", "Item 3" };
    
    @Override public int getCount() {
        return items.length;
    }
    @Override public Object getItem(int position) {
        return items[position];
    }
    @Override public long getItemId(int position) {
        return items[position].hashCode();
    }
    @Override public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = LayoutInflater.from(context)
                    .inflate(android.R.layout.simple_list_item_1, parent, false);
            // Apply custom typeface!
            typeface(convertView);
        }

        ((TextView) convertView).setText(items[position]);
        return convertView;
    }
});

public class MyApplication extends Application {

	private TypefaceCollection mArchRivalTypeface;
	private TypefaceCollection mUbuntuTypeface;

	@Override public void onCreate() {
		super.onCreate();

		// Initialize Arch Rival typeface
		mArchRivalTypeface = new TypefaceCollection.Builder()
			.set(Typeface.NORMAL, Typeface.createFromAsset(getAssets(), 
				"fonts/arch_rival/SF_Arch_Rival.ttf"))
			.set(Typeface.BOLD, Typeface.createFromAsset(getAssets(),
				"fonts/arch_rival/SF_Arch_Rival_Bold.ttf"))
			.set(Typeface.ITALIC, Typeface.createFromAsset(getAssets(),
				"fonts/arch_rival/SF_Arch_Rival_Italic.ttf"))
			.set(Typeface.BOLD_ITALIC, Typeface.createFromAsset(getAssets(),
				"fonts/arch_rival/SF_Arch_Rival_Bold_Italic.ttf"))
			.create();

		// Initialize Ubuntu typeface
		mUbuntuTypeface = new TypefaceCollection.Builder()
			.set(Typeface.NORMAL, Typeface.createFromAsset(getAssets(),
				"fonts/ubuntu/Ubuntu-R.ttf"))
			.set(Typeface.BOLD, Typeface.createFromAsset(getAssets(),
				"fonts/ubuntu/Ubuntu-B.ttf"))
			.set(Typeface.ITALIC, Typeface.createFromAsset(getAssets(), 
				"fonts/ubuntu/Ubuntu-RI.ttf"))
			.set(Typeface.BOLD_ITALIC, Typeface.createFromAsset(getAssets(),
				"fonts/ubuntu/Ubuntu-BI.ttf"))
			.create();

		// Load helper with default custom typeface (single custom typeface)
		TypefaceHelper.init(mUbuntuTypeface);
	}

	/** Getter for Arch Rival typeface */
	public TypefaceCollection getArchRivalTypeface() {
		return mArchRivalTypeface;
	}

	/** Getter for Ubuntu typeface */
	public TypefaceCollection getUbuntuTypeface() {
		return mUbuntuTypeface;
	}
}

typeface(findViewById(R.id.label_title), 
	((MyApplication) getApplication()).getArchRivalTypeface());
	
typeface(findViewById(R.id.label_subtitle), 
	((MyApplication) getApplication()).getUbuntuTypeface());

@Override public void onClick(View v) {
	switch (v.getId()) {
	case R.id.btn_font_ubuntu:
		typeface(findViewById(R.id.label_title),
			((MyApplication) getApplication()).getUbuntuTypeface());
		break;
	case R.id.btn_font_arch_rival:
		typeface(findViewById(R.id.label_title),
			((MyApplication) getApplication()).getArchRivalTypeface());
		break;
	}
}