src/com/owncloud/android/ui/activity/LandingActivity.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011 Bartek Przybylski
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License as published by
   6  *   the Free Software Foundation, either version 3 of the License, or
   7  *   (at your option) any later version.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18 package com.owncloud.android.ui.activity;
  19
  20 import com.actionbarsherlock.app.SherlockFragmentActivity;
  21 import com.owncloud.android.authenticator.AccountAuthenticator;
  22 import com.owncloud.android.ui.adapter.LandingScreenAdapter;
  23
  24 import android.accounts.Account;
  25 import android.accounts.AccountManager;
  26 import android.app.AlertDialog;
  27 import android.app.Dialog;
  28 import android.content.DialogInterface;
  29 import android.content.DialogInterface.OnClickListener;
  30 import android.content.Intent;
  31 import android.os.Bundle;
  32 import android.view.View;
  33 import android.widget.AdapterView;
  34 import android.widget.AdapterView.OnItemClickListener;
  35 import android.widget.GridView;
  36 import android.widget.Toast;
  37 import com.owncloud.android.R;
  38
  39 /**
  40  * This activity is used as a landing page when the user first opens this app.
  41  *
  42  * @author Lennart Rosam
  43  *
  44  */
  45 public class LandingActivity extends SherlockFragmentActivity implements
  46         OnClickListener, OnItemClickListener {
  47
  48     public static final int DIALOG_SETUP_ACCOUNT = 1;
  49
  50     @Override
  51     protected void onCreate(Bundle savedInstanceState) {
  52         super.onCreate(savedInstanceState);
  53         setContentView(R.layout.main);
  54
  55         // Fill the grid view of the landing screen with icons
  56         GridView landingScreenItems = (GridView) findViewById(R.id.homeScreenGrid);
  57         landingScreenItems.setAdapter(new LandingScreenAdapter(this));
  58         landingScreenItems.setOnItemClickListener(this);
  59
  60         // Check, if there are ownCloud accounts
  61         if (!accountsAreSetup()) {
  62             showDialog(DIALOG_SETUP_ACCOUNT);
  63         } else {
  64             // Start device tracking service
  65             Intent locationServiceIntent = new Intent();
  66             locationServiceIntent
  67                     .setAction("com.owncloud.android.location.LocationLauncher");
  68             sendBroadcast(locationServiceIntent);
  69         }
  70
  71     }
  72
  73     @Override
  74     protected void onRestart() {
  75         super.onRestart();
  76         // Check, if there are ownCloud accounts
  77         if (!accountsAreSetup()) {
  78             showDialog(DIALOG_SETUP_ACCOUNT);
  79         }
  80     }
  81
  82     @Override
  83     protected void onRestoreInstanceState(Bundle savedInstanceState) {
  84         super.onRestoreInstanceState(savedInstanceState);
  85         // Check, if there are ownCloud accounts
  86         if (!accountsAreSetup()) {
  87             showDialog(DIALOG_SETUP_ACCOUNT);
  88         }
  89     }
  90
  91     @Override
  92     protected Dialog onCreateDialog(int id) {
  93         Dialog dialog;
  94         switch (id) {
  95         case DIALOG_SETUP_ACCOUNT:
  96             AlertDialog.Builder builder = new AlertDialog.Builder(this);
  97             builder.setTitle(R.string.main_tit_accsetup);
  98             builder.setMessage(R.string.main_wrn_accsetup);
  99             builder.setCancelable(false);
 100             builder.setPositiveButton(R.string.common_ok, this);
 101             builder.setNegativeButton(R.string.common_cancel, this);
 102             dialog = builder.create();
 103             break;
 104         default:
 105             dialog = null;
 106         }
 107
 108         return dialog;
 109     }
 110
 111     public void onClick(DialogInterface dialog, int which) {
 112         // In any case - we won't need it anymore
 113         dialog.dismiss();
 114         switch (which) {
 115         case DialogInterface.BUTTON_POSITIVE:
 116             Intent intent = new Intent(android.provider.Settings.ACTION_ADD_ACCOUNT);
 117             intent.putExtra("authorities",
 118                     new String[] { AccountAuthenticator.AUTHORITY });
 119             startActivity(intent);
 120             break;
 121         case DialogInterface.BUTTON_NEGATIVE:
 122             finish();
 123         }
 124
 125     }
 126
 127     @Override
 128     /**
 129      * Start an activity based on the selection
 130      * the user made
 131      */
 132     public void onItemClick(AdapterView<?> parent, View view, int position,
 133             long id) {
 134         Intent intent;
 135         intent = (Intent) parent.getAdapter().getItem(position);
 136         if (intent != null) {
 137             startActivity(intent);
 138         } else {
 139             // TODO: Implement all of this and make this text go away ;-)
 140             Toast toast = Toast.makeText(this, "Not yet implemented!",
 141                     Toast.LENGTH_SHORT);
 142             toast.show();
 143         }
 144     }
 145
 146     /**
 147      * Checks, whether or not there are any ownCloud accounts setup.
 148      *
 149      * @return true, if there is at least one account.
 150      */
 151     private boolean accountsAreSetup() {
 152         AccountManager accMan = AccountManager.get(this);
 153         Account[] accounts = accMan
 154                 .getAccountsByType(AccountAuthenticator.ACCOUNT_TYPE);
 155         return accounts.length > 0;
 156     }
 157
 158 }