onMeasure老忘 这回整下来不用忘了

/**

* 测量

*/

@Override

protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

super.onMeasure(widthMeasureSpec, heightMeasureSpec);

    int wSpecMode = MeasureSpec.getMode(widthMeasureSpec);

    int wSpecSize = MeasureSpec.getSize(widthMeasureSpec);

    int hSpecMode = MeasureSpec.getMode(heightMeasureSpec);

    int hSpecSize = MeasureSpec.getSize(heightMeasureSpec);

    if (wSpecMode == MeasureSpec.AT_MOST && hSpecMode == MeasureSpec.AT_MOST) {

setMeasuredDimension(300, 300);

    }else if (wSpecMode == MeasureSpec.AT_MOST) {

setMeasuredDimension(300, hSpecSize);

    }else if (hSpecMode == MeasureSpec.AT_MOST) {

setMeasuredDimension(wSpecSize, 300);

    }

}