Android 使用 StaticLayout 实现字符串换行

static class LongTextView extends View {
        private static final float TEXT_SIZE = 60;

        private static final CharSequence TEXT = "This is a long long long " +
                "long long long long long long long long long long " +
                "long long long string";

        TextPaint textPaint;

        public LongTextView(Context context) {
            super(context);
            textPaint = new TextPaint();
            textPaint.setColor(Color.BLUE);
            textPaint.setStyle(Paint.Style.FILL);
            textPaint.setTextSize(TEXT_SIZE);
        }

        public void onDraw(Canvas canvas) {
            super.onDraw(canvas);

            StaticLayout staticLayout = new StaticLayout(
                    TEXT, textPaint,
                    canvas.getWidth(),
                    Layout.Alignment.ALIGN_NORMAL,
                    1.0f, 0.0f, false
            );

            staticLayout.draw(canvas);
        }
    }