Android自定义View之继承TextView绘制背景

内容摘要
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);
m
文章正文

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phpstudy。


代码注释

作者:喵哥笔记

IDC笔记

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