Change Font of TextView in Android

Question

I'm pretty new in java and android, the problem that i'm facing is that i can't change the font of another layout.

okay i have a ListView and i use the ArrayAdapter to connect another layout to my ListView. like image bellow:

I copy my font to assets folder and write this inside onCreate:

// list of titles
String[] pizza_titles = {"BBQ Bacon Cheeseburger", "Old-Fashioned Meatbrawl", "7-Alarm Fire", "Sweet Sriracha Dynamite","Cock-A-Doodle Bacon"};

// getting the ListView ID
pizza_list_view = (ListView) findViewById(R.id.listView_Pizza);

// creating ArrayAdapter and connecting the layout to ListView as well as list of string to a TextView 
ArrayAdapter<String> adapter=new ArrayAdapter<String (this,R.layout.food_row,R.id.text_food_title,pizza_titles);
pizza_list_view.setAdapter(adapter);

// defining the font typeface
Typeface pizza_title_font = Typeface.createFromAsset(getAssets(),"pizza.ttf");
TextView pizza_title = (TextView) findViewById(R.id.text_food_title);
pizza_title.setTypeface(pizza_title_font );

once i run this i get error, i guess because i set the setTypeface to layout that connected to ListView, but if i setTypeface to a TextView that is in my activity_main, it will work perfectly. like image bellow.

so what am i missing? and how can i solve this issue?

Edit_1: here the xml code of food_row layout:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:src="@drawable/food_preview"
        android:id="@+id/image_food"
        android:layout_width="100dp"
        android:layout_height="100dp"/>

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:text="Large Text"
            android:id="@+id/text_food_title" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:text="Medium Text"
            android:id="@+id/text_food_description" />

    </LinearLayout>
</LinearLayout>

here the activity_main xml code:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="domain.bernard.task_02.MainActivity"
    android:weightSum="1">

    <ListView
        android:layout_width="match_parent"
        android:layout_height="317dp"
        android:id="@+id/listView_Pizza"
        android:layout_gravity="center_horizontal" />

    <TextView
        android:layout_width="302dp"
        android:layout_height="48dp"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="Medium Text"
        android:id="@+id/textView2" />

</LinearLayout>

Update:

Answer 1

You need to create your own Custom Adapter and in getView of your Adapter you can set the fonts, here is the example

@Override
public View getView(int position, View convertView, ViewGroup parent) {

    View vi = convertView;
    if (convertView == null)
        vi = lif.inflate(R.layout.inflate, null);
    imageView = (ImageView) vi.findViewById(R.id.imageForImageView);

    TextView pizza_title = (TextView) findViewById(R.id.text_food_title);
    pizza_title.setText("Your text");

    final Typeface pizza_title_font  = Typeface.createFromAsset(getAssets(),"pizza.ttf");
    pizza_title.setTypeface(pizza_title_font);

    return vi;
}

if you dunno how to create Custom Adapter then you can use this library for that, its pretty straight forward

Include the dependency in your gradle.build

dependencies {
compile 'uk.co.chrisjenx:calligraphy:2.2.0'
}

create a folder in your assets folder named fonts, e.g assets/fonts and move your fonts in that folder and then in your TextView

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:text="Large Text"
    fontPath="fonts/pizza.ttf"
    android:id="@+id/text_food_title" />

Remeber: it won't give you live preview of your fonts in XML preview but you can check it by running your app in emulate or device.

Answer 2

I recommend to fix some part of your code :

• You define weightSum in your root layout but didn't specify layout_weight in your children.
• For using custom font I really recommend to use This library.
• Also as Andres suggest instead of ArrayAdapter use Custom Adapter to have more power on customizing.