我使用canvas.drawtext在android中的自定义视图中绘制文本。我需要改变颜色,并希望文本对齐。例如,我想打印10,10,100,20矩形的黄色和文本颜色红色和右对齐的文本。我怎么能这样做?
答案 0 :(得分:2)
public void onDraw(Canvas c) {
String text = "red right-aligned text";
Paint paint = new Paint();
paint.setStyle(Paint.Style.FILL_AND_STROKE);
int rectX = 10;
int rectY = 10;
int rectWidth = 100;
int rectHeight = 20;
float textWidth = paint.measureText(text); // measureText method of Paint
paint.setColor(Color.YELLOW);
c.drawRect(rectX, rectY, rectX + rectWidth, rectY + rectHeight, paint);
paint.setColor(Color.RED);
c.drawText(text, rectX + rectWidth - textWidth, rectY, paint);
}
答案 1 :(得分:0)
gc.setBackground(...)
gc.fillRectangle(...)
gc.setForeground(...)
gc.drawText(...)