网络获取tablayout数据

最新推荐文章于 2023-04-13 14:27:19 发布

原创最新推荐文章于 2023-04-13 14:27:19 发布 · 1.4k 阅读

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本文介绍如何在Android应用中使用TabLayout与ViewPager组件实现标签式导航，通过具体示例展示了所需依赖库的引入方式、自定义适配器及Fragment的方法，并实现了数据加载和展示的功能。

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首先需要导入以下包

compile 'com.android.support:design:26.0.0-alpha1'
compile 'com.jakewharton:butterknife:7.0.1'
compile 'org.xutils:xutils:3.5.0'
compile 'com.google.code.gson:gson:2.8.1'

activity_main 使用线性布局以下控件

<android.support.design.widget.TabLayout
    android:id="@+id/tablatout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:tabIndicatorColor="@color/colorPrimary"
    app:tabSelectedTextColor="@color/colorAccent"
    app:tabTextColor="@color/colorPrimaryDark"></android.support.design.widget.TabLayout>


<android.support.v4.view.ViewPager
    android:id="@+id/viewpager"
    android:layout_width="match_parent"
    android:layout_height="match_parent"></android.support.v4.view.ViewPager>





xutils的类
public class BaseApplication extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        x.Ext.init(this);
        x.Ext.setDebug(BuildConfig.DEBUG);
    }
}



ContentFragment  类 相应的布局空白
public class ContentFragment extends Fragment {

    private static String KEY = "arg";
    private View view;

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        view = inflater.inflate(R.layout.content_fragment, container, false);
        return view;
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        String url = (String) getArguments().get(KEY);
        Log.e("onActivityCreated", "onActivityCreated: " + url);
    }

    public static Fragment newIn(String url) {
        Fragment fragment = new ContentFragment();
        Bundle bundle = new Bundle();
        bundle.putString(KEY, url);
        fragment.setArguments(bundle);
        return fragment;
    }
}


 

适配器类，单独写了一个
public class MyAdapter extends FragmentPagerAdapter {
    private List<NewsBean.DataBean> list;
    private Context context;

    public MyAdapter(FragmentManager fm, List<NewsBean.DataBean> list, Context context) {
        super(fm);
        this.list = list;
        this.context = context;
    }

    @Override
    public Fragment getItem(int position) {
        return ContentFragment.newIn(list.get(position).getUrl());
    }

    @Override
    public int getCount() {
        return list.size();
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return list.get(position).getName();
    }
}





主Activity
public class MainActivity extends AppCompatActivity {

    @Bind(R.id.tablatout)
    TabLayout tablatout;
    @Bind(R.id.viewpager)
    ViewPager viewpager;
    private String url = "http://lf.snssdk.com/neihan/service/tabs/?essence=1&iid=3216590132&device_id=32613520945&ac=wifi&channel=360&aid=7&app_name=joke_essay&version_code=612&version_name=6.1.2&device_platform=android&ssmix=a&device_type=sansung&device_brand=xiaomi&os_api=28&os_version=6.10.1&uuid=326135942187625&openudid=3dg6s95rhg2a3dg5&manifest_version_code=612&resolution=1450*2800&dpi=620&update_version_code=6120";
    private List<NewsBean.DataBean> list;
    private MyAdapter adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();

        initData();
    }

    private void initData() {
        list = new ArrayList<>();
        adapter = new MyAdapter(getSupportFragmentManager(), list, this);
        viewpager.setAdapter(adapter);
        tablatout.setupWithViewPager(viewpager);
        x.http().get(new RequestParams(url), new Callback.CommonCallback<String>() {
            @Override
            public void onSuccess(String result) {
                Gson gson = new Gson();
                NewsBean newsBean = gson.fromJson(result, NewsBean.class);
                list.addAll(newsBean.getData());
                viewpager.post(new Runnable() {
                    @Override
                    public void run() {
                        adapter.notifyDataSetChanged();
                    }
                });
            }

            @Override
            public void onError(Throwable ex, boolean isOnCallback) {

            }

            @Override
            public void onCancelled(CancelledException cex) {

            }

            @Override
            public void onFinished() {

            }
        });
    }

    private void initView() {
        ButterKnife.bind(this);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        ButterKnife.unbind(this);
    }
}


另一个需要的类就是Title的类了。