android.view.ViewGroup#removeViewInLayout ( )源码实例Demo

/**
 * remove a view
 *
 * @param parent
 * @param view
 */
public static void removeView(ViewGroup parent, View view) {
    //这里不使用post来做，这样代码更可控，而是改为将refresh下拉动作延后一帧处理，见@link
    //这里调用removeViewInLayout方法，可以在onLayout的时候调用，否则会产生问题
    if (parent != null && view != null) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
            if (parent.isInLayout()) {
                parent.removeViewInLayout(view);
            } else {
                parent.removeView(view);
            }
        } else {
            parent.removeView(view);
        }
    }
}
 

protected void bindSwipeToRefresh(ViewGroup v) {
	mSwipeRefresh = new SwipeUpAndDownRefreshLayout(getActivity());
	
	// Move child to SwipeRefreshLayout, and add SwipeRefreshLayout to root view
	v.removeViewInLayout(mList);
	v.addView(mSwipeRefresh, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
	mSwipeRefresh.addView(mList, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
	
	mSwipeRefresh.setOnRefreshListener(this);
	mSwipeRefresh.setColorScheme(R.color.ptr_green, R.color.ptr_orange, R.color.ptr_red, R.color.ptr_blue);
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
	// Share the view
	ViewGroup v = (ViewGroup) inflater.inflate(R.layout.home_timeline, null);
	
	mList = (ListView) v.findViewById(R.id.home_timeline);
	
	mSwipeRefresh = new SwipeUpAndDownRefreshLayout(getActivity());

	// Move child to SwipeRefreshLayout, and add SwipeRefreshLayout to root view
	v.removeViewInLayout(mList);
	v.addView(mSwipeRefresh, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
	mSwipeRefresh.addView(mList, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);

	mSwipeRefresh.setOnRefreshListener(this);
	mSwipeRefresh.setColorScheme(R.color.ptr_green, R.color.ptr_orange, R.color.ptr_red, R.color.ptr_blue);
	
	mApiCache = new DirectMessagesUserApiCache(getActivity());
	mAdapter = new DirectMessageUserAdapter(getActivity(), mApiCache.mUsers);
	mList.setAdapter(mAdapter);
	mList.setOnItemClickListener(this);
	
	mApiCache.loadFromCache();
	
	if (mApiCache.mUsers.getSize() == 0) {
		onRefresh();
	}
	
	return v;
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
	// Share the layout of Home Time Line
	ViewGroup v = (ViewGroup) inflater.inflate(R.layout.home_timeline, null);
	
	// Init
	mList = (ListView) v.findViewById(R.id.home_timeline);
	mUsers = new UserListModel();
	mAdapter = new UserAdapter(getActivity(), mUsers);
	mList.setAdapter(mAdapter);
	mList.setOnItemClickListener(this);
	mSwipeRefresh = new SwipeUpAndDownRefreshLayout(getActivity());

	// Move child to SwipeRefreshLayout, and add SwipeRefreshLayout to root view
	v.removeViewInLayout(mList);
	v.addView(mSwipeRefresh, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
	mSwipeRefresh.addView(mList, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);

	mSwipeRefresh.setOnRefreshListener(this);
	mSwipeRefresh.setColorScheme(R.color.ptr_green, R.color.ptr_orange, R.color.ptr_red, R.color.ptr_blue);
	
	if (mUid != null) {
		onRefresh(); 
	}
	
	return v;
}
 

/**
 * Inflates the layout resource identified by {@link #getLayoutResource()}
 * and replaces this StubbedView in its parent by the inflated layout
 * resource.
 * 
 * @return The inflated layout resource.
 * 
 */
public View inflate() {
    final ViewParent viewParent = getParent();

    if (viewParent != null && viewParent instanceof ViewGroup) {
        if (mLayoutResource != 0) {
            final ViewGroup parent = (ViewGroup) viewParent;
            final LayoutInflater factory;
            if (mInflater != null) {
                factory = mInflater;
            } else {
                factory = LayoutInflater.from(getContext());
            }
            final View view = factory.inflate(mLayoutResource, parent,
                    false);

            if (mInflatedId != NO_ID) {
                view.setId(mInflatedId);
            }

            final int index = parent.indexOfChild(this);
            parent.removeViewInLayout(this);

            final ViewGroup.LayoutParams layoutParams = getLayoutParams();
            if (layoutParams != null) {
                parent.addView(view, index, layoutParams);
            } else {
                parent.addView(view, index);
            }

            mInflatedViewRef = new WeakReference<View>(view);

            if (mInflateListener != null) {
                mInflateListener.onInflate(this, view);
            }

            return view;
        } else {
            throw new IllegalArgumentException(
                    "ViewStub must have a valid layoutResource");
        }
    } else {
        throw new IllegalStateException(
                "ViewStub must have a non-null ViewGroup viewParent");
    }
}