fragment切换优化

app/build.gradle

@@ -90,7 +90,7 @@ dependencies {
     //mutidex
     compile 'com.android.support:multidex:1.0.2'
 
-    compile 'com.android.support:design:25.0.0'
+    compile 'com.android.support:design:25.4.0'
 
     //greendao数据库
     compile 'org.greenrobot:greendao:3.2.0'

app/src/main/java/com/dayu/bigfish/InitializeActivity.java

@@ -78,7 +78,7 @@ public class InitializeActivity extends AppCompatActivity {
     }
 
     public void showPerMissionDialog() {
-        CustomDialog dialog = new CustomDialog(mActivity, R.style.custom_dialog2, getString(R.string.please_open__permission)
+        CustomDialog dialog = new CustomDialog(mActivity, R.style.CustomDialog, getString(R.string.please_open__permission)
                 , (dialog1, confirm) -> {
             if (confirm) {
                 Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);

app/src/main/java/com/dayu/bigfish/base/BasePresenter.java

@@ -145,7 +145,7 @@ public abstract class BasePresenter<V> {
      * 重新登录的提示框.
      */
     private void showLoginDialog() {
-        mDialog = new CustomDialog(mActivity, R.style.custom_dialog2, getString(R.string.login_state_no)
+        mDialog = new CustomDialog(mActivity, R.style.CustomDialog, getString(R.string.login_state_no)
                 , (dialog, confirm) -> {
             if (confirm) {
                 UserManager.getInstance().clearUserInfo(mActivity);

app/src/main/java/com/dayu/bigfish/presenter/homeorder/HomeOrderPresenter.java

@@ -40,6 +40,13 @@ public class HomeOrderPresenter extends HomeOrderContract.Presenter {
             public void accept(Tab tab) throws Exception {
                 ((HomeOrderFragment) mView).setTabNum(tab, mIndex);
             }
+        }, responeThrowable -> {
+            Tab tab = new Tab();
+            tab.setCanceled(0);
+            tab.setError(0);
+            tab.setPendingservice(0);
+            tab.setReservation(0);
+            ((HomeOrderFragment) mView).setTabNum(tab, mIndex);
         }));
     }
 

app/src/main/java/com/dayu/bigfish/presenter/processorder/ProcessOrderPresenter.java

@@ -18,7 +18,6 @@ import com.dayu.bigfish.greendao.GreenDaoManager;
 import com.dayu.bigfish.greendao.OrderInfoDao;
 import com.dayu.bigfish.ui.SopWebViewActivity;
 import com.dayu.bigfish.utils.managers.UserManager;
-import com.luck.picture.lib.tools.PictureFileUtils;
 
 import org.greenrobot.eventbus.EventBus;
 import org.greenrobot.greendao.query.Query;
@@ -154,7 +153,7 @@ public class ProcessOrderPresenter extends ProcessOrderContract.Presenter {
                 }
                 EventBus.getDefault().post(new OrderState(status, mPosition));
                 mOrderInfoDao.deleteByKey((long) orderId);
-                PictureFileUtils.deleteCacheDirFile(mActivity);
+//                PictureFileUtils.deleteCacheDirFile(mActivity);
                 mActivity.finish();
             }
         }));
@@ -184,7 +183,7 @@ public class ProcessOrderPresenter extends ProcessOrderContract.Presenter {
                         mAccountId, isPay, info.getDoorPrice(), info.getOtherInfo(),
                         info.getServerPrice(), info.getMaterialCost(), info.getOtherPrice());
                 mImages.clear();
-                PictureFileUtils.deleteCacheDirFile(mActivity);
+//                PictureFileUtils.deleteCacheDirFile(mActivity);
             }
         }));
     }

app/src/main/java/com/dayu/bigfish/ui/MainActivity.java

@@ -62,50 +62,44 @@ public class MainActivity extends BaseActivity<MainPresenter, ActivityMainBindin
         mFragments = new Fragment[]{firstFragment, secondFragment, thirdFragment, fourFragment};
         mTabs = new TextView[]{mBind.tabFirst, mBind.tabSecond, mBind.tabThird, mBind.tabFour};
         addFragment();
-        showHideFragment(1, mPosition);
         initListener();
         doAction(getIntent());
         EventBus.getDefault().register(this);
     }
 
     private void initListener() {
-        mBind.tabFirst.setOnClickListener(o -> {
-            showHideFragment(0, mPosition);
-        });
-        mBind.tabSecond.setOnClickListener(o -> {
-            showHideFragment(1, mPosition);
-        });
+        mBind.tabFirst.setOnClickListener(o -> showHideFragment(0, mPosition));
+        mBind.tabSecond.setOnClickListener(o -> showHideFragment(1, mPosition));
         mBind.tabThird.setOnClickListener(o -> {
             showHideFragment(2, mPosition);
             mBind.ivMessage.setVisibility(View.GONE);
         });
-        mBind.tabFour.setOnClickListener(o -> {
-            showHideFragment(3, mPosition);
-        });
-    }
-
-    public void resetSelected(int position) {
-        for (int i = 0; i < mTabs.length; i++) {
-            mTabs[i].setSelected(false);
-        }
-        mTabs[position].setSelected(true);
+        mBind.tabFour.setOnClickListener(o -> showHideFragment(3, mPosition));
     }
 
+    /**
+     * 添加fragment.
+     */
     private void addFragment() {
         mFragmentManger = getSupportFragmentManager();
         FragmentTransaction transaction = mFragmentManger.beginTransaction()
                 .setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
         for (int i = 0; i < mFragments.length; i++) {
             Fragment fragment = mFragments[i];
-            String toName = fragment.getClass().getName();
-            transaction.add(R.id.fl_container, fragment, toName);
-            if (i != 0) {
+            transaction.add(R.id.fl_container, fragment);
             transaction.hide(fragment);
         }
-        }
+        transaction.show(mFragments[1]);
         transaction.commit();
+        resetSelected(1);
     }
 
+    /**
+     * fragment切换.
+     *
+     * @param showPosition
+     * @param hidePosition
+     */
     private void showHideFragment(int showPosition, int hidePosition) {
         if (showPosition == hidePosition) return;
         mFragmentManger.beginTransaction()
@@ -116,6 +110,18 @@ public class MainActivity extends BaseActivity<MainPresenter, ActivityMainBindin
         mPosition = showPosition;
     }
 
+    /**
+     * 重置按钮状态.
+     * @param position
+     */
+    public void resetSelected(int position) {
+        for (int i = 0; i < mTabs.length; i++) {
+            mTabs[i].setSelected(false);
+        }
+        mTabs[position].setSelected(true);
+        mPosition =position;
+    }
+
 
     /**
      * 消息小红点.
@@ -138,7 +144,7 @@ public class MainActivity extends BaseActivity<MainPresenter, ActivityMainBindin
      * @param upgradePrompt 提示语
      */
     public void showUpdateDialog(String upgradePrompt, CustomDialog.OnCloseListener listener) {
-        CustomDialog dialog = new CustomDialog(mActivity, R.style.custom_dialog2, upgradePrompt, listener);
+        CustomDialog dialog = new CustomDialog(mActivity, R.style.CustomDialog, upgradePrompt, listener);
         dialog.setTitle(getString(R.string.have_new_version))
                 .setNegativeButton(getString(R.string.next_again))
                 .setPositiveButton(getString(R.string.need_upglude));
@@ -158,6 +164,10 @@ public class MainActivity extends BaseActivity<MainPresenter, ActivityMainBindin
         notificationManager.notify(0, builder.build());
     }
 
+    /**
+     * 处理intent传来的信息.
+     * @param intent
+     */
     private void doAction(Intent intent) {
         InformBean info = (InformBean) intent.getSerializableExtra(Constants.MESSAGE_INFO);
         if (info != null) {

app/src/main/java/com/dayu/bigfish/ui/OrderDetailsActivity.java

 package com.dayu.bigfish.ui;
 
-import android.os.Bundle;
 import android.support.design.widget.TabLayout;
 import android.support.v4.app.Fragment;
 
-import com.dayu.bigfish.Constants;
 import com.dayu.bigfish.R;
 import com.dayu.bigfish.base.BaseActivity;
 import com.dayu.bigfish.bean.OrderDetail;
 import com.dayu.bigfish.databinding.ActivityOrderDetailsBinding;
 import com.dayu.bigfish.presenter.orderdetail.OrderDetailContract;
 import com.dayu.bigfish.presenter.orderdetail.OrderDetailPresenter;
-import com.dayu.bigfish.ui.adapter.FragmentAdapter;
-import com.dayu.bigfish.ui.fragment.OrderDatailsServeFragment;
-import com.dayu.bigfish.ui.fragment.OrderDateilsFragment;
+import com.dayu.bigfish.ui.adapter.FragmentBaseAdapter;
+import com.dayu.bigfish.ui.fragment.OrderDetaillsFragment;
+import com.dayu.bigfish.ui.fragment.OrderDetailsServeFragment;
 import com.dayu.bigfish.utils.TabLayoutUtils;
 
 import java.util.ArrayList;
@@ -26,10 +24,9 @@ import java.util.List;
 
 public class OrderDetailsActivity extends BaseActivity<OrderDetailPresenter, ActivityOrderDetailsBinding>
         implements OrderDetailContract.View {
-    private List<Fragment> list;
-    private FragmentAdapter fragmentAdapter;
-    private OrderDateilsFragment orderDatailsFragment;
-    private OrderDatailsServeFragment orderDatailsServeFragment;
+    private FragmentBaseAdapter fragmentAdapter;
+    private OrderDetaillsFragment orderDatailsFragment;
+    private OrderDetailsServeFragment orderDatailsServeFragment;
 
 
     @Override
@@ -43,21 +40,17 @@ public class OrderDetailsActivity extends BaseActivity<OrderDetailPresenter, Act
     }
 
     public void init(OrderDetail detail) {
-        Bundle bundle = new Bundle();
-        bundle.putSerializable(Constants.ORDER_DETAIL, detail);
-        list = new ArrayList<>();
-        orderDatailsFragment = new OrderDateilsFragment();
-        list.add(orderDatailsFragment);
-        orderDatailsServeFragment = new OrderDatailsServeFragment();
-        list.add(orderDatailsServeFragment);
-        orderDatailsFragment.setArguments(bundle);
-        orderDatailsServeFragment.setArguments(bundle);
-        fragmentAdapter = new FragmentAdapter(getSupportFragmentManager(), list);
+        List<Fragment> fragments = new ArrayList<>();
+        List<String> titles = new ArrayList<>();
+        orderDatailsFragment = OrderDetaillsFragment.newInstance(detail);
+        orderDatailsServeFragment = OrderDetailsServeFragment.newInstance(detail);
+        fragments.add(orderDatailsFragment);
+        fragments.add(orderDatailsServeFragment);
+        titles.add(getString(R.string.order_detail));
+        titles.add(getString(R.string.server_record));
+        fragmentAdapter = FragmentBaseAdapter.newInstance(getSupportFragmentManager(), fragments, titles);
         mBind.viewPager.setAdapter(fragmentAdapter);
         mBind.tablayout.setupWithViewPager(mBind.viewPager);
-        mBind.tablayout.removeAllTabs();
-        mBind.tablayout.addTab(mBind.tablayout.newTab().setText(getString(R.string.order_detail)));
-        mBind.tablayout.addTab(mBind.tablayout.newTab().setText(getString(R.string.server_record)));
         mBind.tablayout.setTabMode(TabLayout.MODE_FIXED);
         TabLayoutUtils.setIndicator(mBind.tablayout, 60, 60, R.color.cl_receiving_order_item_data, this);
     }

app/src/main/java/com/dayu/bigfish/ui/SettingActivity.java

@@ -26,7 +26,7 @@ public class SettingActivity extends BaseActivity<SettingPresenter, ActivitySett
 
     @Override
     public void showCachDialog(CustomDialog.OnCloseListener listener) {
-        CustomDialog dialog = new CustomDialog(mActivity, R.style.custom_dialog2, getString(R.string.sure_clear_data)
+        CustomDialog dialog = new CustomDialog(mActivity, R.style.CustomDialog, getString(R.string.sure_clear_data)
                 , listener);
         dialog.setTitle(getString(R.string.notice))
                 .setNegativeButton(getString(R.string.cancle))

app/src/main/java/com/dayu/bigfish/ui/adapter/FragmentAdapter.java

@@ -19,6 +19,7 @@ public class FragmentAdapter extends FragmentStatePagerAdapter {
         this.list_fragemnts = list_fragemnts;
     }
 
+
     @Override
     public int getCount() {
         return list_fragemnts.size();
@@ -30,7 +31,13 @@ public class FragmentAdapter extends FragmentStatePagerAdapter {
         return list_fragemnts.get(position);
     }
 
+
     @Override
     public void destroyItem(ViewGroup container, int position, Object object) {
     }
+
+    @Override
+    public CharSequence getPageTitle(int position) {
+        return super.getPageTitle(position);
+    }
 }

app/src/main/java/com/dayu/bigfish/ui/adapter/FragmentBaseAdapter.java

@@ -7,7 +7,7 @@ import android.support.v4.app.FragmentStatePagerAdapter;
 import java.util.List;
 
 /**
- * Created by luofan on 17/12/24.
+ * Created by baixiaokang on 16/5/8.
  */
 public class FragmentBaseAdapter extends FragmentStatePagerAdapter {
     private List<Fragment> mFragments;

app/src/main/java/com/dayu/bigfish/ui/fragment/HomeFirstTabFragment.java

@@ -23,7 +23,6 @@ public class HomeFirstTabFragment extends BaseFragment<HomeFirstPresenter, Fragm
 
     @Override
     public void initView() {
-
     }
 
     @Override

app/src/main/java/com/dayu/bigfish/ui/fragment/HomeMessageTabFragment.java

@@ -30,17 +30,26 @@ public class HomeMessageTabFragment extends DataBindingFragment<FragmentMessageB
     }
 
     @Override
+    public int getLayoutId() {
+        return R.layout.fragment_message;
+    }
+
+
+    @Override
     public void initView() {
-        List<String> mTitle = new ArrayList<>();
-        List<Integer> category = new ArrayList<>();
-        mTitle.add(mActivity.getString(R.string.message_system));
-        mTitle.add(mActivity.getString(R.string.message_dayu));
-        category.add(1);
-        category.add(2);
-        Observable.fromIterable(category).map((Function<Integer, Fragment>) MessageFragment::newInstance).toList()
-                .map(fragments -> FragmentBaseAdapter.newInstance(getActivity().getSupportFragmentManager(), fragments, mTitle))
-                .subscribe(fragmentBaseAdapter -> mBind.vpMessage.setAdapter(fragmentBaseAdapter));
+        List<Integer> args = new ArrayList<>();
+        List<String> titles = new ArrayList<>();
+        titles.add(getString(R.string.message_system));
+        titles.add(getString(R.string.message_dayu));
+        args.add(1);
+        args.add(2);
+        Observable.fromIterable(args).map((Function<Integer, Fragment>) MessageFragment::newInstance).toList()
+                .map(fragments -> FragmentBaseAdapter.newInstance(getChildFragmentManager(), fragments, titles))
+                .subscribe(fragmentBaseAdapter -> {
+                    mBind.vpMessage.setAdapter(fragmentBaseAdapter);
+                    mBind.vpMessage.setOffscreenPageLimit(2);
                     mBind.tbMessage.setupWithViewPager(mBind.vpMessage);
+                });
         TabLayoutUtils.setIndicator(mBind.tbMessage, 60, 60, R.color.cl_receiving_order_item_data, getActivity());
         if (mIndex != -1) {
             mBind.vpMessage.setCurrentItem(mIndex);
@@ -48,11 +57,6 @@ public class HomeMessageTabFragment extends DataBindingFragment<FragmentMessageB
         }
     }
 
-    @Override
-    public int getLayoutId() {
-        return R.layout.fragment_message;
-    }
-
     public void swtichFragment(int position) {
         if (mBind.tbMessage == null || mBind.tbMessage.getTabAt(position) == null) {
             return;

app/src/main/java/com/dayu/bigfish/ui/fragment/HomeOrderFragment.java

@@ -144,7 +144,6 @@ public class HomeOrderFragment extends BaseFragment<HomeOrderPresenter, Fragment
 
             }
         });
-        setTabNum(null,0);
     }
 
 
@@ -152,16 +151,16 @@ public class HomeOrderFragment extends BaseFragment<HomeOrderPresenter, Fragment
      * 将网络请求到的数据展示到tab上
      */
     public void setTabNum(Tab tab, int myTabIndex) {
+        String[] tabNum = new String[]{tab.getReservation() + "", tab.getPendingservice() + "",
+                tab.getError() + "", tab.getCanceled() + ""};
         if (isFirstAddTab) {
             mBind.tbHome.removeAllTabs();
-            mBind.tbHome.addTab(mBind.tbHome.newTab().setCustomView(CreatTab("0", tabDesc[0])));
-            mBind.tbHome.addTab(mBind.tbHome.newTab().setCustomView(CreatTab("0", tabDesc[1])));
-            mBind.tbHome.addTab(mBind.tbHome.newTab().setCustomView(CreatTab("0", tabDesc[2])));
-            mBind.tbHome.addTab(mBind.tbHome.newTab().setCustomView(CreatTab("0", tabDesc[3])));
+            mBind.tbHome.addTab(mBind.tbHome.newTab().setCustomView(CreatTab(tabNum[0], tabDesc[0])));
+            mBind.tbHome.addTab(mBind.tbHome.newTab().setCustomView(CreatTab(tabNum[1], tabDesc[1])));
+            mBind.tbHome.addTab(mBind.tbHome.newTab().setCustomView(CreatTab(tabNum[2], tabDesc[2])));
+            mBind.tbHome.addTab(mBind.tbHome.newTab().setCustomView(CreatTab(tabNum[3], tabDesc[3])));
             isFirstAddTab = false;
         } else {
-            String[] tabNum = new String[]{tab.getReservation() + "", tab.getPendingservice() + "",
-                    tab.getError() + "", tab.getCanceled() + ""};
             for (int i = 0; i < mBind.tbHome.getTabCount(); i++) {
                 TextView tv = (TextView) mBind.tbHome.getTabAt(i).getCustomView().findViewById(R.id.tabtext);
                 TextView tvIcon = (TextView) mBind.tbHome.getTabAt(i).getCustomView().findViewById(R.id.tabicon);

app/src/main/java/com/dayu/bigfish/ui/fragment/HomePersonFragment.java

@@ -149,7 +149,7 @@ public class HomePersonFragment extends BaseFragment<HomePersonPresenter, Fragme
     }
 
     private void showAlertDialog() {
-        CustomDialog dialog = new CustomDialog(mActivity, R.style.custom_dialog2, mActivity.getString(R.string.not_set_account)
+        CustomDialog dialog = new CustomDialog(mActivity, R.style.CustomDialog, mActivity.getString(R.string.not_set_account)
                 , (dialog1, confirm) -> {
             if (confirm) {
                 Intent intent = new Intent(mActivity, WithdrawalsActivity.class);

app/src/main/java/com/dayu/bigfish/ui/fragment/OrderDateilsFragment.java → app/src/main/java/com/dayu/bigfish/ui/fragment/OrderDetaillsFragment.java

 package com.dayu.bigfish.ui.fragment;
 
+import android.os.Bundle;
 import android.support.v7.widget.LinearLayoutManager;
 import android.view.View;
 
@@ -17,12 +18,20 @@ import com.dayu.bigfish.utils.UIUtils;
  * on 2017/9/13.
  */
 
-public class OrderDateilsFragment extends DataBindingFragment<FragmentOrderDatailsBinding> {
+public class OrderDetaillsFragment extends DataBindingFragment<FragmentOrderDatailsBinding> {
 
     private boolean mFlag = true;
     private CoreAdapter mAdapter;
     private OrderDetail mDetail;
 
+    public static OrderDetaillsFragment newInstance(OrderDetail detail) {
+        Bundle args = new Bundle();
+        args.putSerializable(Constants.ORDER_DETAIL,detail);
+        OrderDetaillsFragment fragment = new OrderDetaillsFragment();
+        fragment.setArguments(args);
+        return fragment;
+    }
+
     @Override
     public void initView() {
         mDetail = (OrderDetail) getArguments().getSerializable(Constants.ORDER_DETAIL);

app/src/main/java/com/dayu/bigfish/ui/fragment/OrderDatailsServeFragment.java → app/src/main/java/com/dayu/bigfish/ui/fragment/OrderDetailsServeFragment.java

 package com.dayu.bigfish.ui.fragment;
 
+import android.os.Bundle;
+
 import com.dayu.bigfish.Constants;
 import com.dayu.bigfish.R;
 import com.dayu.bigfish.base.DataBindingFragment;
@@ -14,7 +16,15 @@ import java.text.ParseException;
  * on 2017/9/13.
  */
 
-public class OrderDatailsServeFragment extends DataBindingFragment<FragmentOrderServeBinding> {
+public class OrderDetailsServeFragment extends DataBindingFragment<FragmentOrderServeBinding> {
+
+    public static OrderDetailsServeFragment newInstance(OrderDetail detail) {
+        Bundle args = new Bundle();
+        args.putSerializable(Constants.ORDER_DETAIL, detail);
+        OrderDetailsServeFragment fragment = new OrderDetailsServeFragment();
+        fragment.setArguments(args);
+        return fragment;
+    }
 
     @Override
     public int getLayoutId() {

app/src/main/java/com/dayu/bigfish/utils/BindingUtils.java

@@ -76,6 +76,9 @@ public class BindingUtils {
      */
     @BindingAdapter({"setPresenter"})
     public static void setPresenter(LRecyclerView view, BaseListPresenter presenter) {
+        if (presenter == null) {
+            return;
+        }
         view.setPresenter(presenter);
         presenter.getSourceDatas().addOnPropertyChangedCallback(new Observable.OnPropertyChangedCallback() {
             @Override

app/src/main/res/layout/fragment_message.xml

@@ -40,18 +40,17 @@
             android:background="@color/cl_white"
             app:tabIndicatorColor="@color/cl_receiving_order_item_data"
             app:tabMaxWidth="0dp"
-            app:tabMode="fixed"
             app:tabSelectedTextColor="@color/cl_receiving_order_item_data"
             app:tabTextAppearance="@style/TabLayoutTextStyle"
-            app:tabTextColor="@color/cl_tab_line"
-            />
+            app:tabTextColor="@color/cl_tab_line" />
 
-        <ImageView style="@style/card_line" />
+        <ImageView style="@style/line" />
 
         <android.support.v4.view.ViewPager
             android:id="@+id/vp_message"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
-                android:background="@color/cl_home_listview_bg" />
+            android:layout_marginTop="@dimen/dp_10"
+            android:background="@color/cl_white" />
     </LinearLayout>
 </layout>
\ No newline at end of file

app/src/main/res/layout/fragment_personal_center.xml

@@ -3,8 +3,6 @@
 
     <data>
 
-        <import type="com.dayu.bigfish.presenter.homefourtab.HomePersonPresenter" />
-
         <variable
             name="presenter"
             type="com.dayu.bigfish.presenter.homefourtab.HomePersonPresenter" />

app/src/main/res/values/styles.xml

@@ -90,11 +90,6 @@
         <item name="android:textSize">@dimen/sp_13.3</item>
     </style>
 
-    <style name="CustomDialog" parent="Theme.AppCompat.Dialog">
-        <item name="android:backgroundDimEnabled">false</item>
-        <item name="android:windowBackground">@android:color/transparent</item>
-    </style>
-
     <style name="Dialog" parent="@android:style/Theme.Holo.Dialog">
         <item name="android:windowSoftInputMode">stateHidden|adjustResize</item>
         <!-- 边框 -->
@@ -110,4 +105,23 @@
         <!-- 模糊 -->
         <item name="android:backgroundDimEnabled">false</item>
     </style>
+
+    <style name="CustomDialog" parent="@android:style/Theme.Dialog">
+        <item name="android:windowSoftInputMode">stateHidden|adjustResize</item>
+
+        <item name="android:windowFrame">@null</item>
+        <!-- Dialog的windowFrame框为无 -->
+        <item name="android:windowIsFloating">true</item>
+        <!-- 是否漂现在activity上 -->
+        <item name="android:windowIsTranslucent">true</item>
+        <!-- 是否半透明 -->
+        <item name="android:windowNoTitle">true</item>
+        <item name="android:background">@null</item>
+        <item name="android:windowBackground">@android:color/transparent</item>
+        <item name="android:windowContentOverlay">@null</item>
+        <!-- 去除黑色边框的关键设置项 -->
+        <item name="android:backgroundDimEnabled">true</item>
+        <!-- 屏幕背景是否变暗 -->
+        <item name="android:backgroundDimAmount">0.3</item>
+    </style>
 </resources>