android/src/console/src/org/netxms/ui/android/main/fragments/AbstractListFragment.java

   1 package org.netxms.ui.android.main.fragments;
   2
   3 import java.lang.reflect.Method;
   4
   5 import org.netxms.ui.android.R;
   6 import org.netxms.ui.android.main.activities.ConsolePreferences;
   7 import org.netxms.ui.android.main.activities.HomeScreen;
   8 import org.netxms.ui.android.service.ClientConnectorService;
   9
  10 import android.app.Activity;
  11 import android.content.Intent;
  12 import android.os.Bundle;
  13 import android.support.v4.app.ListFragment;
  14 import android.view.MenuItem;
  15 import android.view.View;
  16 import android.view.animation.AnimationUtils;
  17 import android.widget.ListView;
  18 import android.widget.TextView;
  19
  20 /**
  21  * Abstract base class for all fragments in the client.
  22  * Implements functionality for passing common parameters and
  23  * for handling common tasks.
  24  *
  25  * @author Marco Incalcaterra (marco.incalcaterra@thinksoft.it)
  26  *
  27  */
  28
  29 public abstract class AbstractListFragment extends ListFragment
  30 {
  31         protected ClientConnectorService service = null;
  32         protected long nodeId;
  33         private View progressContainer;
  34         private View listContainer;
  35         private TextView standardEmptyView;
  36         protected boolean listShown;
  37         protected static Method method_invalidateOptionsMenu;
  38
  39         static
  40         {
  41                 try
  42                 {
  43                         method_invalidateOptionsMenu = Activity.class.getMethod("invalidateOptionsMenu", new Class[0]);
  44                 }
  45                 catch (NoSuchMethodException e)
  46                 {
  47                         method_invalidateOptionsMenu = null;
  48                 }
  49         }
  50
  51         @Override
  52         public void onCreate(Bundle savedInstanceState)
  53         {
  54                 super.onCreate(savedInstanceState);
  55                 setRetainInstance(true);
  56                 setHasOptionsMenu(true);
  57         }
  58
  59         @Override
  60         public boolean onContextItemSelected(MenuItem item)
  61         {
  62                 if (defaultMenuAction(item))
  63                         return true;
  64                 return super.onContextItemSelected(item);
  65         }
  66
  67         @Override
  68         public boolean onOptionsItemSelected(MenuItem item)
  69         {
  70                 if (defaultMenuAction(item))
  71                         return true;
  72                 return super.onOptionsItemSelected(item);
  73         }
  74
  75         @Override
  76         public void setListShown(boolean shown)
  77         {
  78                 setListShown(shown, true);
  79         }
  80
  81         @Override
  82         public void setListShownNoAnimation(boolean shown)
  83         {
  84                 setListShown(shown, false);
  85         }
  86
  87         public void setNodeId(long id)
  88         {
  89                 nodeId = id;
  90         }
  91
  92         public void setService(ClientConnectorService service)
  93         {
  94                 this.service = service;
  95         }
  96
  97         public abstract void refresh();
  98
  99         public void setListShown(boolean shown, boolean animate)
 100         {
 101                 if (listShown != shown)
 102                 {
 103                         listShown = shown;
 104                         if (shown)
 105                         {
 106                                 if (animate)
 107                                 {
 108                                         progressContainer.startAnimation(AnimationUtils.loadAnimation(getActivity(), android.R.anim.fade_out));
 109                                         listContainer.startAnimation(AnimationUtils.loadAnimation(getActivity(), android.R.anim.fade_in));
 110                                 }
 111                                 progressContainer.setVisibility(View.GONE);
 112                                 listContainer.setVisibility(View.VISIBLE);
 113                         }
 114                         else
 115                         {
 116                                 if (animate)
 117                                 {
 118                                         progressContainer.startAnimation(AnimationUtils.loadAnimation(getActivity(), android.R.anim.fade_in));
 119                                         listContainer.startAnimation(AnimationUtils.loadAnimation(getActivity(), android.R.anim.fade_out));
 120                                 }
 121                                 progressContainer.setVisibility(View.VISIBLE);
 122                                 listContainer.setVisibility(View.INVISIBLE);
 123                         }
 124                 }
 125         }
 126
 127         protected void createProgress(View v)
 128         {
 129                 int INTERNAL_EMPTY_ID = 0x00ff0001;
 130                 listContainer = v.findViewById(R.id.listContainer);
 131                 progressContainer = v.findViewById(R.id.progressContainer);
 132                 standardEmptyView = (TextView)v.findViewById(INTERNAL_EMPTY_ID);
 133                 if (standardEmptyView != null)
 134                         ((ListView)v).setEmptyView(standardEmptyView);
 135
 136                 listShown = true;
 137         }
 138
 139         private boolean defaultMenuAction(MenuItem item)
 140         {
 141                 switch (item.getItemId())
 142                 {
 143                         case android.R.id.home:
 144                                 startActivity(new Intent(getActivity(), HomeScreen.class));
 145                                 return true;
 146                         case R.id.settings:
 147                                 startActivity(new Intent(getActivity(), ConsolePreferences.class));
 148                                 return true;
 149                 }
 150                 return false;
 151         }
 152 }