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。

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