Hướng dẫn cài đặt font chữ trên android tv box

Android 8.0 (API level 26) introduces fonts in XML, a feature that lets you use fonts as resources. You can add the font file in the res/font/ folder to bundle fonts as resources. These fonts are compiled in your

<TextView

    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:fontFamily="@font/lobster"/>

<TextView

    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:fontFamily="@font/lobster"/>

<TextView

    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:fontFamily="@font/lobster"/>

To use the fonts in XML feature on devices running Android 4.1 (API level 16) and higher, use Support Library 26.0. For more information on using the Support Library, refer to the section.

To add fonts as resources, perform the following steps in Android Studio:

1. Right-click the res folder and go to New > Android resource directory. The New Resource Directory window appears.
2. In the Resource type list, select font, then click OK. Note: The name of the resource directory must be font.
   
   Figure 1. Adding the font resource directory.
3. Add your font files in the font folder. The folder structure below generates <TextView

       android:layout_width="wrap_content"  
       android:layout_height="wrap_content"  
       android:fontFamily="@font/lobster"/>  
   

   5, <TextView

       android:layout_width="wrap_content"  
       android:layout_height="wrap_content"  
       android:fontFamily="@font/lobster"/>  
   

   6, and <TextView

       android:layout_width="wrap_content"  
       android:layout_height="wrap_content"  
       android:fontFamily="@font/lobster"/>  

4. 
   Figure 2. Adding the font files in the <TextView

       android:layout_width="wrap_content"  
       android:layout_height="wrap_content"  
       android:fontFamily="@font/lobster"/>  
   

   8 directory.
5. Double-click a font file to preview the file's fonts in the editor.
   
   Figure 3. Previewing the font file.

Create a font family

A font family is a set of font files along with style and weight details. In Android, you can create a new font family as an XML resource and access it as a single unit, instead of referencing each style and weight as separate resources. By doing this, you let the system select the correct font based on the text style you are using.

To create a font family, perform the following steps in Android Studio:

1. Right-click the font folder and select New > Font resource file. The New Resource File window appears.
2. Enter the filename, then click OK. The new font resource XML opens in the editor.
3. Enclose each font file, style, and weight attribute in the <style name="customfontstyle" parent="@android:style/TextAppearance.Small">

   <item name="android:fontFamily">@font/lobster</item>  
   

   </style> 0 element. The following XML illustrates adding font-related attributes in the font resource XML: <?xml version="1.0" encoding="utf-8"?> <font-family xmlns:android="http://schemas.android.com/apk/res/android">

   <font  
       android:fontStyle="normal"  
       android:fontWeight="400"  
       android:font="@font/lobster_regular" />  
   <font  
       android:fontStyle="italic"  
       android:fontWeight="400"  
       android:font="@font/lobster_italic" />  
   

   </font-family>

Use fonts in XML layouts

Use your fonts, either a single font file or a font from a font family, in

<style name="customfontstyle" parent="@android:style/TextAppearance.Small">

<item name="android:fontFamily">@font/lobster</item>

1 objects or in styles by using the

<style name="customfontstyle" parent="@android:style/TextAppearance.Small">

<item name="android:fontFamily">@font/lobster</item>

2 attribute.

Note: When you use a font family, the

<style name="customfontstyle" parent="@android:style/TextAppearance.Small">

<item name="android:fontFamily">@font/lobster</item>

3 switches on its own, as needed, to use the font files from that family.

Add fonts to a TextView

To set a font for a

<style name="customfontstyle" parent="@android:style/TextAppearance.Small">

<item name="android:fontFamily">@font/lobster</item>

3, do one of the following:

• In the layout XML file, set the <style name="customfontstyle" parent="@android:style/TextAppearance.Small">

  <item name="android:fontFamily">@font/lobster</item>  
  

  </style> 2 attribute to the font file you want to access. <TextView

      android:layout_width="wrap_content"  
      android:layout_height="wrap_content"  
      android:fontFamily="@font/lobster"/>

• Open the Properties window to set the font for the <style name="customfontstyle" parent="@android:style/TextAppearance.Small">

  <item name="android:fontFamily">@font/lobster</item>  
  

  </style>
• 1. Select a view to open the Properties window. Note: The Properties window is available only when the design editor is open. Select the Design tab at the bottom of the window.
  2. Expand the textAppearance property, and then select the font from the fontFamily list.
  3. 
     Figure 4. Selecting the font from the Properties window.

The Android Studio layout preview, shown in the rightmost pane in Figure 5, lets you preview the font set in the

<style name="customfontstyle" parent="@android:style/TextAppearance.Small">

<item name="android:fontFamily">@font/lobster</item>

3.

Figure 5. Previewing fonts in layout preview.

Add fonts to a style

Open the

<style name="customfontstyle" parent="@android:style/TextAppearance.Small">

<item name="android:fontFamily">@font/lobster</item>

8 file and set the

<style name="customfontstyle" parent="@android:style/TextAppearance.Small">

<item name="android:fontFamily">@font/lobster</item>

2 attribute to the font file you want to access.

• <style name="customfontstyle" parent="@android:style/TextAppearance.Small">

  <item name="android:fontFamily">@font/lobster</item>  
  

  </style>

Use fonts programmatically

To retrieve fonts programmatically, call the

val typeface = resources.getFont(R.font.myfont) textView.typeface = typeface

0 method and provide the resource identifier of the font you want to retrieve. This method returns a

val typeface = resources.getFont(R.font.myfont) textView.typeface = typeface

1 object. Although the system picks the best style for you from the fonts' information, you can use the

val typeface = resources.getFont(R.font.myfont) textView.typeface = typeface

2 method to set the typeface with specific styles.

Note: The

<style name="customfontstyle" parent="@android:style/TextAppearance.Small">

<item name="android:fontFamily">@font/lobster</item>

3 does this for you.

Kotlin

val typeface = resources.getFont(R.font.myfont) textView.typeface = typeface

Java

Typeface typeface = getResources().getFont(R.font.myfont); textView.setTypeface(typeface);

Use the Support Library

The Support Library 26.0 supports fonts in XML on devices running Android 4.1 (API level 16) and higher.

Note: When you declare font families in XML layout through the Support Library, use the app namespace to ensure that your fonts load.

<?xml version="1.0" encoding="utf-8"?> <font-family xmlns:app="http://schemas.android.com/apk/res-auto">

<font app:fontStyle="normal" app:fontWeight="400" app:font="@font/myfont-Regular"/>
<font app:fontStyle="italic" app:fontWeight="400" app:font="@font/myfont-Italic" />

To retrieve fonts programmatically, call the

val typeface = resources.getFont(R.font.myfont) textView.typeface = typeface

4 method and provide an instance of

val typeface = resources.getFont(R.font.myfont) textView.typeface = typeface

5 and the resource identifier.

Kotlin

val typeface = ResourcesCompat.getFont(context, R.font.myfont)

Java

Typeface typeface = ResourcesCompat.getFont(context, R.font.myfont);

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Last updated 2022-12-13 UTC.

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