android 自定义textview自己绘制文字,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脚本之家。