写出Android 动态设置控件的高度和宽度，俩个imageView分别是a和b放到一个linearlayout，其中b竖屏时隐藏横屏时显示，动态设置俩们俩的宽高占满linearlayout

好的，以下是实现的代码：

// 获取控件
ImageView a = findViewById(R.id.imageView_a);
ImageView b = findViewById(R.id.imageView_b);
LinearLayout linearLayout = findViewById(R.id.linearLayout);

// 设置b竖屏时隐藏
int orientation = getResources().getConfiguration().orientation;
if (orientation == Configuration.ORIENTATION_PORTRAIT) {
    b.setVisibility(View.GONE);
} else {
    b.setVisibility(View.VISIBLE);
}

// 动态设置控件宽高
LinearLayout.LayoutParams layoutParamsA = (LinearLayout.LayoutParams) a.getLayoutParams();
LinearLayout.LayoutParams layoutParamsB = (LinearLayout.LayoutParams) b.getLayoutParams();
layoutParamsA.width = LinearLayout.LayoutParams.MATCH_PARENT;
layoutParamsA.height = LinearLayout.LayoutParams.MATCH_PARENT;
layoutParamsB.width = LinearLayout.LayoutParams.MATCH_PARENT;
layoutParamsB.height = LinearLayout.LayoutParams.MATCH_PARENT;
a.setLayoutParams(layoutParamsA);
b.setLayoutParams(layoutParamsB);

这段代码可以实现以下功能：

1. 获取控件a、b和linearLayout的引用；
2. 判断当前屏幕方向，若为竖屏则将b设置为隐藏，若为横屏则将b设置为显示；
3. 动态设置控件a、b的宽高为MATCH_PARENT，以占满linearLayout的宽高。