Android使用自定义字体

​ 安卓开发使用自定义字体应该已经是司空见惯了，今天就来介绍一下如何使用自定义字体的方法。

准备工作

如下图，首先创建一个assets文件夹，然后新建一个fonts子文件夹，放入字体文件。

微信截图_20170816115004.png

方法一：通过重写TextView实现在xml中配置

1.重写TextView

    private Context mContext;
    private String TypefaceName = "";


    public String getTypefaceName() {
        return TypefaceName;
    }

    public void setTypefaceName(String typefaceName) {
        TypefaceName = typefaceName;
        Typeface typeface = Typeface.createFromAsset(mContext.getAssets(), "fonts/" + TypefaceName + ".ttf");
        this.setTypeface(typeface);
        System.gc();
    }

    public FontTextView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        this.mContext = context;
        int resouceId = attrs.getAttributeResourceValue(null, "typefaceName", 0);
        if (resouceId != 0) {
            TypefaceName = context.getResources().getString(resouceId);
        } else {
            TypefaceName = attrs.getAttributeValue(null, "typefaceName");
        }
        if (TypefaceName != null && !"".equals(TypefaceName)) {
            Typeface typeface = Typeface.createFromAsset(context.getAssets(), "fonts/" + TypefaceName + ".ttf");
            this.setTypeface(typeface);
        }
    }


    public FontTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        this.mContext = context;
        // 先判断是否配置的资源文件
        int resouceId = attrs.getAttributeResourceValue(null, "typefaceName", 0);
        if (resouceId != 0) {
            TypefaceName = context.getResources().getString(resouceId);
        } else {
            TypefaceName = attrs.getAttributeValue(null, "typefaceName");
        }
        if (TypefaceName != null && !"".equals(TypefaceName)) {
            Typeface typeface = Typeface.createFromAsset(context.getAssets(), "fonts/" + TypefaceName + ".ttf");
            this.setTypeface(typeface);
        }
    }


    public FontTextView(Context context) {
        super(context);
        this.mContext = context;
        // TypefaceName = attrs.getAttributeValue(null, "TypefaceName");
        if (TypefaceName != null && !"".equals(TypefaceName)) {
            Typeface typeface = Typeface.createFromAsset(context.getAssets(), "fonts/" + TypefaceName + ".ttf");
            this.setTypeface(typeface);
        }
    }
}

2.xml使用typefaceName属性引用字体文件

<com.example.scrollerlayout.FontTextView
        android:layout_width="60dp"
        android:layout_height="50dp"
        android:textSize="20sp"    
        typefaceName="Simhei"
        android:text="This is first child view"/>

方法二：代码内部设置

加载字体资源文件：
需要注意的是,字体文件加载不要放在主线程中，会阻塞线程，影响性能

public static Typeface typeFace =Typeface.createFromAsset(getContext().getAssets(),
            "fonts/Simhei.ttf");
    public static Typeface typeFaceArial= Typeface.createFromAsset(getContext().getAssets(),
            "fonts/Arial.ttf");

使用：

TextView.setTypeface(typeFace);

是不是很简单了，两种方法任意选择。