ViewPager+Fragment實現加載界面
SQLite數據獲取並顯示到ListView上
ListView的item監聽並攜帶數據跳轉到其他界面
使用SharedPreference存儲部分測試數據
實現過程：
各方法和變量的作用請詳見代碼註釋。
listview的數據顯示請見Android Studio獲取SQLite數據並顯示到ListView上Fragment+ViewParger實現界面加載
首先要創建兩個類並繼承Fragment，在viewpager中實現顯示時使用。
public class RiderInfo_Fragment extends Fragment { List<Map
> listitem = new ArrayList<Map>(); //存儲數據的數組列表---裡面的數據將顯示在ListView中 ListView listView = null; ListinfoList = new ArrayList<>(); //從SQLite中獲得的數據將存儲在改集合中-------info是bean類 @Override public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Inflate the layout for this fragment View view = inflater.inflate(R.layout.rider_info_fragment, null); listView = (ListView) view.findViewById(R.id.showRiderInfo); //綁定Listview getRiderHistoryInfoFromSQite(getActivity(), infoList); //該方法用於從SQLite中獲取數據，參數二 infoList會存儲獲得數據 getDataFromInfoList(); //將list中的數據添加到map集合中 initListData(); return view; } private void getDataFromInfoList() { for (int i = 0; i < infoList.size(); i++) { Mapmap = new HashMap(); map.put("name", infoList.get(i).getUsername()); map.put("address", "f"); map.put("price", "444"); map.put("objectID", infoList.get(i).objectIds); listitem.add(map); } } private void initListData() { SimpleAdapter adapter = new SimpleAdapter(getActivity() , listitem , R.layout.rider_info_fragment_item , new String[]{"name", "address", "price", "objectID"} , new int[]{R.id.time, R.id.address, R.id.price, R.id.objectID}); // 第一個參數是上下文對象 // 第二個是listitem------數據加載 // 第三個是指定每個列表項的佈局文件 // 第四個是指定Map對象中定義的兩個鍵（這裡通過字符串數組來指定） // 第五個是用於指定在佈局文件中定義的id（也是用數組來指定） adapter.setViewBinder(new SimpleAdapter.ViewBinder() { //通過實現ViewBinder()這個接口，在裡面定義數據和視圖的匹配關係 ---加載圖片 Bitmap類型（默認是使用R.id.---） @Override public boolean setViewValue(View view, Object data, String textRepresentation) { if ((view instanceof ImageView) & (data instanceof Bitmap)) { ImageView iv = (ImageView) view; Bitmap bm = (Bitmap) data; iv.setImageBitmap(bm); return true; } return false; } }); listView.setAdapter(adapter); //監聽item項並攜帶數據跳轉到另一個界面 listView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView adapterView, View view, int i, long l) { ListView listView = (ListView) adapterView; HashMapmap = (HashMap) listView.getItemAtPosition(i); Intent intent = new Intent(getActivity(), RiderInfoManager.class); Bundle bundle = new Bundle(); bundle.putString("objectid", map.get("objectID")); intent.putExtras(bundle); startActivity(intent); } }); }
另一個類的創建過程類似。
3.創建 mainactivity.java用於設置在Viewpager中顯示Fragment
public class MainActivity extends AppCompatActivity implements View.OnClickListener { private ViewPager vp; CustomerInfo_Fragment customerInfo_fragment; RiderInfo_Fragment riderInfo_fragment; private ListmFragmentList = new ArrayList(); FragmentAdapter mFragmentAdapter; TextView custome, rider; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); mFragmentAdapter = new FragmentAdapter(this.getSupportFragmentManager(), mFragmentList); vp.setOffscreenPageLimit(2);//ViewPager的緩存為2幀 vp.setAdapter(mFragmentAdapter); vp.setCurrentItem(0);//初始設置ViewPager選中第一幀 //ViewPager的監聽事件 vp.setOnPageChangeListener(new ViewPager.OnPageChangeListener() { @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { /*此方法在頁面被選中時調用*/ //title.setText(titles[position]); changeTextColor(position); } @Override public void onPageScrollStateChanged(int state) { /*此方法是在狀態改變的時候調用，其中arg0這個參數有三種狀態（0，1，2）。 arg0==1的時辰默示正在滑動， arg0==2的時辰默示滑動完畢了， arg0==0的時辰默示什麼都沒做。*/ } }); } void initView() { custome = findViewById(R.id.customer); rider = findViewById(R.id.rider); custome.setOnClickListener(this); rider.setOnClickListener(this); vp = (ViewPager) findViewById(R.id.mainViewPager); customerInfo_fragment = new CustomerInfo_Fragment(); riderInfo_fragment = new RiderInfo_Fragment(); mFragmentList.add(customerInfo_fragment); mFragmentList.add(riderInfo_fragment); } @Override public void onClick(View view) { //用於判斷當前為哪一個fragment int i = view.getId(); if (i == R.id.customer) { vp.setCurrentItem(0, true); } else if (i == R.id.rider) { vp.setCurrentItem(1, true); } } public class FragmentAdapter extends FragmentPagerAdapter { ListfragmentList = new ArrayList(); public FragmentAdapter(android.support.v4.app.FragmentManager fm, ListfragmentList) { super(fm); this.fragmentList = fragmentList; } @Override public Fragment getItem(int position) { return fragmentList.get(position); } @Override public int getCount() { return fragmentList.size(); } }
該方法用於具體執行數據庫數據查詢
public static void getRiderHistoryInfoFromSQite(Activity activity, ListinfoList) { DBOpenHelper helper = new DBOpenHelper(activity, "qianbao.db", null, 1); SQLiteDatabase db = helper.getWritableDatabase(); Cursor c = db.query("RiderHistoryInfo", null, null, null, null, null, null); if (c != null && c.getCount() >= 1) { while (c.moveToNext()) { //moveToNext是指向表中的下一行數據 infoList.add(new Info(c.getString(c.getColumnIndex("userName")), c.getString(c.getColumnIndex("userPhone")), c.getString(c.getColumnIndex("price")), c.getString(c.getColumnIndex("address")), c.getString(c.getColumnIndex("createTime")), c.getString(c.getColumnIndex("objectId")),"")); } c.close(); db.close(); } }
實現過程中的主要代碼就是這麼多，實現過程比較簡單僅供參考。
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android實現滑動標籤頁效果的代碼解析已經有306次圍觀
http://coctec.com/docs/android/show-post-232197.html
