android - 如何在 Android 中使用 TextView 显示循环文本

Question

我想在我的 android 应用程序中显示圆形文本。我知道它是用 custome textview 完成的，但是一些伙伴可以给我正确的代码吗？我还附上了我想要的外观类型的图像。

Answer 1

您可以试试这个经过测试的完整工作代码:

public class MainActivity extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(new GraphicsView(this));
    }

    static public class GraphicsView extends View {
        private static final String QUOTE = "This is a curved text";
        private Path circle;
        private Paint cPaint;
        private Paint tPaint;

        public GraphicsView(Context context) {
            super(context);

            int color = Color.argb(127, 255, 0, 255);

            circle = new Path();
            circle.addCircle(230, 350, 150, Direction.CW);

            cPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
            cPaint.setStyle(Paint.Style.STROKE);
            cPaint.setColor(Color.LTGRAY);
            cPaint.setStrokeWidth(3);

            setBackgroundResource(R.drawable.heart);

            tPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
            tPaint.setStyle(Paint.Style.FILL_AND_STROKE);
            tPaint.setColor(Color.BLACK);
            tPaint.setTextSize(50);
        }
        @Override
        protected void onDraw(Canvas canvas) {
            canvas.drawTextOnPath(QUOTE, circle, 485, 20, tPaint);
        }
    }
}

输出将是:

希望这对您有所帮助。