Android 将度数符号设置为 Textview [重复]

Android设置TextView的度数符号

java
import android.content.Context;
import android.graphics.Typeface;
import android.util.AttributeSet;
import androidx.appcompat.widget.AppCompatTextView;
public class DegreeTextView extends AppCompatTextView {
    public DegreeTextView(Context context) {
        super(context);
        init();
    }
    public DegreeTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }
    public DegreeTextView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init();
    }
    private void init() {
        Typeface typeface = Typeface.createFromAsset(getContext().getAssets(), "fonts/roboto.ttf");
        setTypeface(typeface);
    }
}

xml
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="45°" />