android - 如何在Android应用程序中使用自定义字体

为了实现自定义字体，我在这里看到了几个不同的例子，我把自定义字体放在一个抽象类中，这个抽象类在整个应用程序中都使用，下面是我的代码

 public abstract class X extends Activity implements OnClickListener {

    private Vibrator vibrator;
    private TextView TV_score;
    private TextView TV_hints;
    private ImageButton BTN_back;
        // Font path
    private String fontPath = "fonts/CarterOne.ttf";
    Typeface tf = Typeface.createFromAsset(getAssets(), fontPath);
    public static Context context;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Logger.log("onCreate " + this.getClass().getName());
        vibrator = (Vibrator) this.getSystemService(VIBRATOR_SERVICE);
        context = getBaseContext();
        SoundHandler.getInstance().initSounds(context);
    }

尝试在这里调试我得到了空指针异常

Typeface tf = Typeface.createFromAsset(getAssets(), fontPath);

对如何解决这一问题提出了一些建议。

最佳答案

在oncreate活动方法中创建typeface对象

public abstract class X extends Activity implements OnClickListener {

private Vibrator vibrator;
private TextView TV_score;
private TextView TV_hints;
private ImageButton BTN_back;
    // Font path
private String fontPath = "fonts/CarterOne.ttf";
Typeface tf ;
public static Context context;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Logger.log("onCreate " + this.getClass().getName());
    vibrator = (Vibrator) this.getSystemService(VIBRATOR_SERVICE);
    context = getBaseContext();
    SoundHandler.getInstance().initSounds(context);
    tf = Typeface.createFromAsset(getAssets(), fontPath);
}

关于android - 如何在Android应用程序中使用自定义字体，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/22878302/