FragmentTabHost切换Fragment时避免重复加载UI
2017-02-14 11:53
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使用FragmentTabHost时,Fragment之间切换时每次都会调用onCreateView方法,导致每次Fragment的布局都重绘,无法保持Fragment原有状态。
解决办法:在Fragment onCreateView方法中缓存View
[java] view plain copy
private View rootView;//缓存Fragment view
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
if(rootView==null){
rootView=inflater.inflate(R.layout.tab_fragment, null);
}
//缓存的rootView需要判断是否已经被加过parent, 如果有parent需要从parent删除,要不然会发生这个rootview已经有parent的错误。
ViewGroup parent = (ViewGroup) rootView.getParent();
if (parent != null) {
parent.removeView(rootView);
}
return rootView;
}
来源: <http://blog.csdn.net/jdsjlzx/article/details/41211395>
解决办法:在Fragment onCreateView方法中缓存View
[java] view plain copy
private View rootView;//缓存Fragment view
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
if(rootView==null){
rootView=inflater.inflate(R.layout.tab_fragment, null);
}
//缓存的rootView需要判断是否已经被加过parent, 如果有parent需要从parent删除,要不然会发生这个rootview已经有parent的错误。
ViewGroup parent = (ViewGroup) rootView.getParent();
if (parent != null) {
parent.removeView(rootView);
}
return rootView;
}
来源: <http://blog.csdn.net/jdsjlzx/article/details/41211395>
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