想在fragment上的listview顯示數(shù)據(jù),但是只能顯示個listview背景色
導(dǎo)航欄的位置,應(yīng)該顯示底下那個新聞數(shù)據(jù),但是空空如也。
mainactivity代碼
public class MainActivity extends FragmentActivity {
private TabLayout tab_title;
private ViewPager vp_pager;
private List<String> list_title; //tab名稱列表
private List<View> listViews;
private View newsView; //定義新聞頁面
private View sportView; //定義體育頁面
private View funView; //定義娛樂頁面
private View science; //定義科技界面
private viewAdapter vAdapter; //定義以view為切換的adapter
private final static String TAG="MainActivity";
private int[] tabImg;
private ArrayList<NewsBean> newsBeans =null;
private DrawerLayout drawerLayout;
private RelativeLayout rightLayout;
private ImageView leftMenu, rightMenu;
private ListView mListView;
private List<ContentModel> mList;
private ArrayList<Data> datas = null;
private FragmentManager fManager = null;
private long exitTime = 0;
private Context mContext;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//
//去掉title
requestWindowFeature(Window.FEATURE_NO_TITLE);
// if (getSupportActionBar() != null){
// getSupportActionBar().hide();
// }
// setContentView(R.layout.activity_main);
setContentView(R.layout.main);
mContext = this;
//1.找到控件
ListView lv_news = findViewById(R.id.lv_news);
System.out.println("找到lv_show");
//2.獲取新聞數(shù)據(jù)用list封裝
ArrayList<NewsBean> allNews = NewsUtils.getAllNews(mContext);
NewsBean a = allNews.get(0);
System.out.println("newsbean:++++"+a);
//3.創(chuàng)建一個adapter設(shè)置給listview
NewsAdapter newsAdapter = new NewsAdapter(mContext, allNews);
lv_news.setAdapter(newsAdapter);
//4.設(shè)置listview條目的點(diǎn)擊事件
//lv_news.setOnItemClickListener(this);
//初始化
initControls();
viewChanage();
initData();
leftMenu = (ImageView) findViewById(R.id.leftmenu);
rightMenu = (ImageView) findViewById(R.id.rightmenu);
drawerLayout = (DrawerLayout) findViewById(R.id.drawerlayout);
rightLayout = (RelativeLayout) findViewById(R.id.right);
mListView = (ListView) findViewById(R.id.left_listview);
System.out.println("找到了");
ContentAdapter adapter = new ContentAdapter(this,mList);
mListView.setAdapter(adapter);
mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
ContentModel contentModel = (ContentModel) parent.getItemAtPosition(position);
int i = contentModel.getId();
switch (i){
case 1:
Intent intent = new Intent(MainActivity.this,LoginActivity.class);
startActivity(intent);
break;
case 2:
// Intent intent = new Intent(MainActivity.this,LoginActivity.class);
// startActivity(intent);
Toast.makeText(MainActivity.this,"正在進(jìn)一步開發(fā)",Toast.LENGTH_LONG).show();
break;
case 3:
// Intent intent = new Intent(MainActivity.this,LoginActivity.class);
// startActivity(intent);
Toast.makeText(MainActivity.this,"正在進(jìn)一步開發(fā)",Toast.LENGTH_LONG).show();
break;
case 4:
// Intent intent = new Intent(MainActivity.this,LoginActivity.class);
// startActivity(intent);
Toast.makeText(MainActivity.this,"正在進(jìn)一步開發(fā)",Toast.LENGTH_LONG).show();
break;
}
// FragmentTransaction bt = fm.beginTransaction();
// switch ((int) id) {
// case 1:
// //bt.replace(R.id.content, new NewsFragment());
//
// Intent intent = new Intent(MainActivity.this,LoginActivity.class);
// startActivity(intent);
//
// break;
// case 2:
// bt.replace(R.id.content, new SubscriptionFragment());
// break;
//
// default:
// break;
// }
//bt.commit();
//drawerLayout.closeDrawer(Gravity.LEFT);
}
});
leftMenu.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this,"點(diǎn)擊了左邊菜單",Toast.LENGTH_LONG).show();
drawerLayout.openDrawer(Gravity.LEFT);
}
});
rightMenu.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
drawerLayout.openDrawer(Gravity.RIGHT);
}
});
rightLayout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
drawerLayout.closeDrawer(Gravity.RIGHT);
}
});
// //1.獲取Fragment的管理者
// FragmentManager fragmentManager = getFragmentManager();
// //2.開啟事物
// FragmentTransaction transaction = fragmentManager.beginTransaction();
// //3.動態(tài)替換
// FragmentTransaction replace = transaction.replace(R.id.lv_tt, new NewsFragment());
// //4.commit
// transaction.commit();
}
/**
* 初始化控件
*/
private void initControls()
{
//title
tab_title = (TabLayout)findViewById(R.id.tab_title);
vp_pager = (ViewPager)findViewById(R.id.vp_pager);
//initBottomNavigationBar();
//bottom
//為tabLayout上的圖標(biāo)賦值
tabImg = new int[]{R.drawable.icon_three,R.drawable.icon_one,R.drawable.icon_two ,R.drawable.icon_four};
}
/**
* 采用在viewpager中切換 view 的方式,并添加了icon的功能
*/
private void viewChanage()
{
listViews = new ArrayList<>();
LayoutInflater mInflater = getLayoutInflater();
//title
newsView = mInflater.inflate(R.layout.fragment_news, null);
sportView = mInflater.inflate(R.layout.fragment_sports, null);
funView = mInflater.inflate(R.layout.fragment_amusement, null);
science = mInflater.inflate(R.layout.fragment_science,null);
listViews.add(newsView);
listViews.add(sportView);
listViews.add(funView);
listViews.add(science);
list_title = new ArrayList<>();
list_title.add("新聞");
list_title.add("體育");
list_title.add("娛樂");
list_title.add("科技");
//設(shè)置TabLayout的模式,這里主要是用來顯示tab展示的情況的
//TabLayout.MODE_FIXED 各tab平分整個工具欄,如果不設(shè)置,則默認(rèn)就是這個值
//TabLayout.MODE_SCROLLABLE; // 適用于多tab的,也就是有滾動條的,一行顯示不下這些tab可以用這個
// 當(dāng)然了,你要是想做點(diǎn)特別的,像知乎里就使用的這種效果
tab_title.setTabMode(TabLayout.MODE_FIXED); //綁定標(biāo)題數(shù)據(jù)
// tab_title.setTabMode(TabLayout.MODE_SCROLLABLE);
//設(shè)置tablayout距離上下左右的距離
//tab_title.setPadding(20,20,20,20);
//為TabLayout添加tab名稱
tab_title.addTab(tab_title.newTab().setText(list_title.get(0)));
tab_title.addTab(tab_title.newTab().setText(list_title.get(1)));
tab_title.addTab(tab_title.newTab().setText(list_title.get(2)));
tab_title.addTab(tab_title.newTab().setText(list_title.get(3)));
vAdapter = new viewAdapter(this,listViews,list_title,tabImg);
vp_pager.setAdapter(vAdapter);
//將tabLayout與viewpager連起來
tab_title.setupWithViewPager(vp_pager);
}
private void initData() {
mList = new ArrayList<ContentModel>();
mList.add(new ContentModel(R.drawable.icon_one, "新聞", 1));
mList.add(new ContentModel(R.drawable.icon_two, "訂閱", 2));
mList.add(new ContentModel(R.drawable.icon_three, "圖片", 3));
mList.add(new ContentModel(R.drawable.icon_four, "視頻", 4));
mList.add(new ContentModel(R.drawable.icon_one, "跟帖", 5));
mList.add(new ContentModel(R.drawable.icon_four, "投票", 6));
}
}
Fragment部分:
public class NewsFragment extends Fragment {
private ListView lv_news;
private ListView list;
private SimpleAdapter adapter;
protected Context mContext;
// @Override
// public void onAttach(Activity activity) {
// super.onAttach(activity);
// this.mActivity = activity;
// }
@Override
public void onAttach(Context context) {
super.onAttach(context);
this.mContext = context;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
private ListView ListView;
//第一次畫ui的時候調(diào)用,要顯示Fragment自己的內(nèi)容
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
//通過打氣筒把一個布局轉(zhuǎn)換成view對象
//View rootview=inflater.inflate(R.layout.fragment_news,container,false);
View view = LayoutInflater.from(this.getActivity()).inflate(R.layout.fragment_news, null);
//4.設(shè)置listview條目的點(diǎn)擊事件
lv_news.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
}
});*/
//1.找到控件
ListView lv_news = (ListView) view.findViewById(R.id.lv_newss);
System.out.println("找到1111111");
//2.獲取新聞數(shù)據(jù)用list封裝
ArrayList<NewsBean> allNews = NewsUtils.getAllNews(getActivity());
System.out.println("找到newsbean");
//3.創(chuàng)建一個adapter設(shè)置給listview
NewsAdapter newsAdapter = new NewsAdapter(getActivity(),allNews);
lv_news.setAdapter(newsAdapter);
//4.設(shè)置listview條目的點(diǎn)擊事件
//lv_news.setOnItemClickListener(this);
return view;
}
@Override
public void onDetach() {
super.onDetach();
}
}
主布局xml
<android.support.design.widget.TabLayout
android:id="@+id/tab_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:background="@color/colorPrimary"
app:tabIndicatorColor="@color/colorAccent"
app:tabSelectedTextColor="@color/blue_light"
app:tabTextColor="@color/material_orange" />
<!--app:tabTextAppearance="@style/tablayoutIcon"-->
<android.support.v4.view.ViewPager
android:id="@+id/vp_pager"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_weight="1" />
fragment布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ListView
android:id="@+id/lv_newss"
android:layout_width="match_parent"
android:layout_height="500dp"
android:background="@color/colorPrimary">
</ListView>
</LinearLayout><?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ListView
android:id="@+id/lv_newss"
android:layout_width="match_parent"
android:layout_height="500dp"
android:background="@color/colorPrimary">
</ListView>
</LinearLayout>
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