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