Activity向Fragment传值，Bundle

首先在Actviity：

public class BusinessMessageActivity extends TitleFragmentActivity {

private List fragments;

 

if (!ListUtil.isNullOrEmpty(subList)) {
    fragments = new ArrayList<>();

for (int i = 0; i < subList.size(); i++) {
    if (!TextUtils.isEmpty(subList.get(i).getExternalLink())) {
        titles.add(subList.get(i).getName());
        fragments.add(HtmlWebFragment.newInstance(subList.get(i).getExternalLink()));
    } else {
        titles.add(subList.get(i).getName());
        fragments.add(BusinessMessageFragment.newInstance(subList.get(i).getColumnId(), type, subList.get(0).getColumnId()));

    }

}
}
mAdapter = new TabLayoutListAdapter(getSupportFragmentManager(),
        fragments, titles);
viewPager.setAdapter(mAdapter);
viewPager.setCurrentItem(location);
tabLayout.setupWithViewPager(viewPager);

 

接下来是Fragment：

public class BusinessMessageFragment extends BaseFragment {

private int key;//快讯类型
private int type = 1;//列表展示形式,1代表小列表,2代表大列表
private int firstId;

public static BusinessMessageFragment newInstance(int key, int type, int firstId) {
    BusinessMessageFragment fragment = new BusinessMessageFragment();
    Bundle bundle = new Bundle();
    bundle.putInt("key", key);
    bundle.putInt("type", type);
    bundle.putInt("firstId", firstId);
    fragment.setArguments(bundle);
    return fragment;
}

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    rootView = inflater.inflate(R.layout.fragment_business_message, container, false);
    unbinder = ButterKnife.bind(this, rootView);

    if (getArguments() != null) {
        key = getArguments().getInt("key");
        type = getArguments().getInt("type");
        firstId = getArguments().getInt("firstId");
    }

这就是Bundle传值。简单实用