Android自定义View之继承TextView绘制背景

本文实例为大家分享了textview绘制背景的方法，供大家参考，具体内容如下

效果：

实现流程：

1.初始化：对画笔进行设置

mpaintin = new paint();
mpaintin.setantialias(true);
mpaintin.setdither(true);
mpaintin.setstyle(paint.style.fill);    

mpaintin.setcolor(getresources().getcolor(r.color.colorprimary));

mpaintout = new paint();
mpaintout.setantialias(true);
mpaintout.setdither(true);
mpaintout.setstyle(paint.style.fill);   

mpaintout.setcolor(getresources().getcolor(r.color.coloraccent));

2.绘制外框，内框，文字

获取组件宽高

int width = getmeasurewidth();
int height = getmeasureheight();

绘制

@override
  protected void ondraw(canvas canvas) {
    //绘制背景,在绘制文字之前绘制
    canvas.drawrect(new rect(0, 0, getmeasuredwidth(), getmeasuredheight()), mpaintin);
    canvas.drawrect(new rect(10, 10, getmeasuredwidth()-10, getmeasuredheight()-10), mpaintout);

    super.ondraw(canvas);
  }

以上就是本文的全部内容，希望能给大家一个参考，也希望大家多多支持。