2

我需要使用

canvas.drawText("1",x,y, 油漆);

但问题是“文本的中心”与我给出的位置不匹配,有什么办法可以做到后者。我对该主题进行了很多搜索,但没有找到任何答案。请帮忙。

先感谢您

4

1 回答 1

6

您需要在您的绘画实例上设置对齐方式:

paint.setTextAlign(Paint.Align.CENTER);

在绘图之前。

请参阅:http: //developer.android.com/reference/android/graphics/Paint.html#setTextAlign (android.graphics.Paint.Align )

编辑: 根据您的指示,您还希望它垂直居中,我将采用类似于此的方法:

            paint.setColor(Color.WHITE);

            paint.setTextAlign(Align.LEFT);

            String text = "Hello";
            Rect bounds = new Rect();
            float x = 100, y = 100;
            paint.getTextBounds(text, 0, text.length(), bounds); // Measure the text
            canvas.drawLine(0, y, canvas.getWidth(), y, paint); // Included to show vertical alignment
            canvas.drawLine(x, 0, x, canvas.getHeight(), paint); // Included to show horizsontal alignment

            canvas.drawText(text, x - bounds.width() * 0.5f, y + bounds.height() * 0.5f, paint); // Draw the text

或者,使用油漆上的中心对齐:

            paint.setColor(Color.WHITE);

            paint.setTextAlign(Align.CENTER);

            String text = "Hello";
            Rect bounds = new Rect();
            float x = 100, y = 100;
            paint.getTextBounds(text, 0, text.length(), bounds); // Measure the text
            canvas.drawLine(0, y, canvas.getWidth(), y, paint); // Included to show vertical alignment
            canvas.drawLine(x, 0, x, canvas.getHeight(), paint); // Included to show horizsontal alignment

            canvas.drawText(text, x, y + bounds.height() * 0.5f, paint); // Draw the text
于 2012-06-22T07:34:47.977 回答