Custom font in android

Hello guys, today i will show you how to change the activity font using custom font.
First make an activity and named it:
FontHelper.java

import android.content.Context;
import android.graphics.Typeface;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

/**
 * Helper class to apply custom font from assets to all text views in the specified root
 * view.
 * 
 * @author Alexander Naberezhnov
 */
public class FontHelper {
	// -----------------------------------------------------------------------
	//
	// Constants
	//
	// -----------------------------------------------------------------------
	private static final String TAG = FontHelper.class.getSimpleName();

	// -----------------------------------------------------------------------
	//
	// Properties
	//
	// -----------------------------------------------------------------------
	/**
	 * Apply specified font for all text views (including nested ones) in the specified
	 * root view.
	 * 
	 * @param context
	 *            Context to fetch font asset.
	 * @param root
	 *            Root view that should have specified font for all it's nested text
	 *            views.
	 * @param fontPath
	 *            Font path related to the assets folder (e.g. "fonts/YourFontName.ttf").
	 */
	public static void applyFont(final Context context, final View root, final String fontPath) {
		try {
			if (root instanceof ViewGroup) {
				ViewGroup viewGroup = (ViewGroup) root;
				int childCount = viewGroup.getChildCount();
				for (int i = 0; i < childCount; i++)
					applyFont(context, viewGroup.getChildAt(i), fontPath);
			} else if (root instanceof TextView)
				((TextView) root).setTypeface(Typeface.createFromAsset(context.getAssets(), fontPath));
		} catch (Exception e) {
			Log.e(TAG, String.format("Error occured when trying to apply %s font for %s view", fontPath, root));
			e.printStackTrace();
		}
	}
}

And in your MainActivity copy and paste this code below setcontentview

	FontHelper.applyFont(this, findViewById(R.id.activity_main_root), "fonts/inside.ttf");

the activity_main_root is the id of your relativelayout or your linearlayout....