自定义TextView控件-优快云博客

本文介绍了一个自定义的TextView控件实现方式，该控件能够根据应用的状态改变字体样式。文章详细展示了如何在不同构造函数中初始化控件，并在Application类中加载字体资源。

自定义类：

public class CustomTextView extends TextView {
    private static final String TAG = "CustomTextView";

    public CustomTextView(Context context) {
        super(context);
        init(context);
    }

    public CustomTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(context);
    }

    public CustomTextView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init(context);

    }

    private void init(Context context) {
        if (UILApplication.font != null) {
            setTypeface(UILApplication.font);
        } else {
            //读取assets
            AssetManager assetManager = context.getAssets();
            Typeface font = Typeface.createFromAsset(assetManager, "fonts/apple_blackbody.ttf");
            setTypeface(font);
        }

    }
}
在Application中添加
public class UILApplication extends Application {

  
   public static Typeface font = null;


  
   @Override
   public void onCreate() {
     

      super.onCreate();

      AssetManager assetManager = getAssets();
      font = Typeface.createFromAsset(assetManager,"fonts/apple_blackbody.ttf");

     
   }

最后在XML文件中引用