集合遍历中删除元素

/*
for (String forbiddenComp : mForbiddenComponents) {
                if (forbiddenComp != null && forbiddenComp.contains(pkg)) {
                    mForbiddenComponents.remove(forbiddenComp);
                    mAllowComponents.add(forbiddenComp);
                }
            }*/

            // 正确的方式
            Iterator<String> iterator = mForbiddenComponents.iterator();
            while (iterator.hasNext()) {
                String forbiddenNext = iterator.next();
                if (pkg != null && pkg.equals(forbiddenNext)) {
                    mForbiddenComponents.remove(forbiddenNext);
                    mAllowComponents.add(forbiddenNext);
                }
            }