Android疑难杂症-自定义ViewGroup添加TextView的Gravity失效

解决方法：

在addView()之前

添加如下代码

mTextView.measure(View.MeasureSpec.makeMeasureSpec(mWidth, View.MeasureSpec.EXACTLY),
        View.MeasureSpec.makeMeasureSpec(mHeight, View.MeasureSpec.EXACTLY));