问题描述
在片段中,我通过以下方式设置GridLayout:mRecycler.setLayoutManager(new GridLayoutManager(rootView.getContext(), 2));
Inside my fragment I'm setting my GridLayout in the following way:mRecycler.setLayoutManager(new GridLayoutManager(rootView.getContext(), 2));
因此,我只想在用户旋转手机/平板电脑时将2
更改为4
.我已经读过有关onConfigurationChanged
的内容,并试图使其适用于我的情况,但是它的方向不正确.当我旋转手机时,应用程序崩溃了...
So, I just want to change that 2
for a 4
when the user rotates the phone/tablet. I've read about onConfigurationChanged
and I tried to make it work for my case, but it isn't going in the right way. When I rotate my phone, the app crashes...
你能告诉我如何解决这个问题吗?
Could you tell me how to solve this issue?
这是我找到解决方法的方法,该方法无法正常工作:
Here is my approach to find the solution, which is not working correctly:
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
int orientation = newConfig.orientation;
if (orientation == Configuration.ORIENTATION_PORTRAIT) {
mRecycler.setLayoutManager(new GridLayoutManager(mContext, 2));
} else if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
mRecycler.setLayoutManager(new GridLayoutManager(mContext, 4));
}
}
提前谢谢!
推荐答案
请尝试在onCreateView方法中处理此问题,因为每次更改方向时都会调用该方法:
Try handling this inside your onCreateView method instead since it will be called each time there's an orientation change:
if(getActivity().getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT){
mRecycler.setLayoutManager(new GridLayoutManager(mContext, 2));
}
else{
mRecycler.setLayoutManager(new GridLayoutManager(mContext, 4));
}
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