如果你想从网络加载字体或轻松地设置它的样式，你可以使用:

https://github.com/shellum/fontView

例子:

<!--Layout-->
<com.finalhack.fontview.FontView
        android:id="@+id/someFontIcon"
        android:layout_width="80dp"
        android:layout_height="80dp" />

//Java:
fontView.setupFont("http://blah.com/myfont.ttf", true, character, FontView.ImageType.CIRCLE);
fontView.addForegroundColor(Color.RED);
fontView.addBackgroundColor(Color.WHITE);

在Android O预览版中，最好的方法是: 它只适用于android studio-2.4或更高版本

右键单击res文件夹，进入New > Android资源目录。新 显示“资源目录”窗口。 在“资源类型”列表中选择字体，然后单击“确定”。 在字体文件夹中添加您的字体文件。下面的文件夹结构生成R.font。dancing_script R.font。la_la和R.font.ba_ba。 双击字体文件，在编辑器中预览文件的字体。

接下来，我们必须创建一个字体族:

右键单击字体文件夹，选择新建>字体资源文件。出现“新建资源文件”窗口。 输入文件名，然后单击OK。新的字体资源XML在编辑器中打开。 将每个字体文件、样式和权重属性包含在字体标记元素中。下面的XML演示了如何在字体资源XML中添加与字体相关的属性:

添加字体到TextView:

   <TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:fontFamily="@font/hey_fontfamily"/>

从文档来看

使用字体

所有步骤都是正确的。

是的，就像Dipali说的那样，下载字体非常简单。

你是这样做的……

Place a TextView. In the properties pane, select the fontFamily dropdown. If it isn't there, find the caret thingy (the > and click on it to expand textAppearance) under the. Expand the font-family drop down. In the little list, scroll all the way down till you see more fonts This will open up a dialog box where you can search from Google Fonts Search for the font you like with the search bar at the top Select your font. Select the style of the font you like (i.e. bold, normal, italic, etc) In the right pane, choose the radio button that says Add font to project Click okay. Now your TextView has the font you like!

奖金: 如果你想在你的应用程序中使用所选字体的文本样式，只需添加<item name="android:fontfamily">@font/fontnamehere</item>到你的styles.xml

最简单的解决方案android支持现在!

使用自定义字体在xml:

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:fontFamily="@font/[your font resource]"/>

看详细信息:

https://developer.android.com/guide/topics/ui/look-and-feel/fonts-in-xml.html

我知道已经有了很好的答案，但这里有一个完全工作的实现。

这是自定义文本视图:

package com.mycompany.myapp.widget;

/**
 * Text view with a custom font.
 * <p/>
 * In the XML, use something like {@code customAttrs:customFont="roboto-thin"}. The list of fonts
 * that are currently supported are defined in the enum {@link CustomFont}. Remember to also add
 * {@code xmlns:customAttrs="http://schemas.android.com/apk/res-auto"} in the header.
 */
public class CustomFontTextView extends TextView {

    private static final String sScheme =
            "http://schemas.android.com/apk/res-auto";
    private static final String sAttribute = "customFont";

    static enum CustomFont {
        ROBOTO_THIN("fonts/Roboto-Thin.ttf"),
        ROBOTO_LIGHT("fonts/Roboto-Light.ttf");

        private final String fileName;

        CustomFont(String fileName) {
            this.fileName = fileName;
        }

        static CustomFont fromString(String fontName) {
            return CustomFont.valueOf(fontName.toUpperCase(Locale.US));
        }

        public Typeface asTypeface(Context context) {
            return Typeface.createFromAsset(context.getAssets(), fileName);
        }
    }

    public CustomFontTextView(Context context, AttributeSet attrs) {
        super(context, attrs);

        if (isInEditMode()) {
            return;
        } else {
            final String fontName = attrs.getAttributeValue(sScheme, sAttribute);

            if (fontName == null) {
                throw new IllegalArgumentException("You must provide \"" + sAttribute + "\" for your text view");
            } else {
                final Typeface customTypeface = CustomFont.fromString(fontName).asTypeface(context);
                setTypeface(customTypeface);
            }
        }
    }
}

这里是自定义属性。这应该进入你的res/attrs.xml文件:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <declare-styleable name="CustomFontTextView">
        <attr name="customFont" format="string"/>
    </declare-styleable>
</resources>

下面是你如何使用它。我将使用一个相对布局来包装它并显示customAttr声明，但它显然可以是您已经拥有的任何布局。

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:customAttrs="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.mycompany.myapp.widget.CustomFontTextView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="foobar"
         customAttrs:customFont="roboto_thin" />

</RelativeLayout>

Open your project and select Project on the top left app --> src --> main right click to main and create directory name it as assets right click to assest and create new directory name it fonts you need to find free fonts like free fonts give it to your Textview and call it in your Activity class copy your fonts inside the fonts folder TextView txt = (TextView) findViewById(R.id.txt_act_spalsh_welcome); Typeface font = Typeface.createFromAsset(getAssets(), "fonts/Aramis Italic.ttf"); txt.setTypeface(font);

字体名称必须正确，有乐趣