Java tutorial
/** * Copyright (c) 2012 Todoroo Inc * * See the file "LICENSE" for the full license governing this code. */ package com.todoroo.astrid.activity; import android.app.PendingIntent.CanceledException; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.speech.SpeechRecognizer; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentTransaction; import android.view.View; import android.view.WindowManager.BadTokenException; import android.widget.EditText; import android.widget.Toast; import com.actionbarsherlock.app.SherlockFragmentActivity; import com.timsu.astrid.R; import com.todoroo.aacenc.RecognizerApi.RecognizerApiListener; import com.todoroo.andlib.service.Autowired; import com.todoroo.andlib.service.ContextManager; import com.todoroo.andlib.service.DependencyInjectionService; import com.todoroo.andlib.utility.AndroidUtilities; import com.todoroo.andlib.utility.DialogUtilities; import com.todoroo.astrid.actfm.CommentsActivity; import com.todoroo.astrid.actfm.CommentsFragment; import com.todoroo.astrid.actfm.TagCommentsFragment; import com.todoroo.astrid.actfm.TaskCommentsFragment; import com.todoroo.astrid.api.AstridApiConstants; import com.todoroo.astrid.api.Filter; import com.todoroo.astrid.api.FilterListItem; import com.todoroo.astrid.api.FilterWithCustomIntent; import com.todoroo.astrid.api.IntentFilter; import com.todoroo.astrid.core.CoreFilterExposer; import com.todoroo.astrid.core.PluginServices; import com.todoroo.astrid.core.SearchFilter; import com.todoroo.astrid.dao.TaskDao; import com.todoroo.astrid.data.TagData; import com.todoroo.astrid.data.Task; import com.todoroo.astrid.service.StartupService; import com.todoroo.astrid.service.StatisticsConstants; import com.todoroo.astrid.service.StatisticsService; import com.todoroo.astrid.subtasks.SubtasksHelper; import com.todoroo.astrid.ui.DateChangedAlerts; import com.todoroo.astrid.ui.QuickAddBar; import com.todoroo.astrid.voice.VoiceRecognizer; /** * This wrapper activity contains all the glue-code to handle the callbacks between the different * fragments that could be visible on the screen in landscape-mode. * So, it basically contains all the callback-code from the filterlist-fragment, the tasklist-fragments * and the taskedit-fragment (and possibly others that should be handled). * Using this AstridWrapperActivity helps to avoid duplicated code because its all gathered here for sub-wrapperactivities * to use. * * @author Arne * */ public class AstridActivity extends SherlockFragmentActivity implements FilterListFragment.OnFilterItemClickedListener, TaskListFragment.OnTaskListItemClickedListener, RecognizerApiListener { public static final int LAYOUT_SINGLE = 0; public static final int LAYOUT_DOUBLE = 1; public static final int LAYOUT_TRIPLE = 2; public static final int RESULT_RESTART_ACTIVITY = 50; protected int fragmentLayout = LAYOUT_SINGLE; private final RepeatConfirmationReceiver repeatConfirmationReceiver = new RepeatConfirmationReceiver(); @Autowired private TaskDao taskDao; public FilterListFragment getFilterListFragment() { FilterListFragment frag = (FilterListFragment) getSupportFragmentManager() .findFragmentByTag(FilterListFragment.TAG_FILTERLIST_FRAGMENT); return frag; } public TaskListFragment getTaskListFragment() { TaskListFragment frag = (TaskListFragment) getSupportFragmentManager() .findFragmentByTag(TaskListFragment.TAG_TASKLIST_FRAGMENT); return frag; } public TaskEditFragment getTaskEditFragment() { TaskEditFragment frag = (TaskEditFragment) getSupportFragmentManager() .findFragmentByTag(TaskEditFragment.TAG_TASKEDIT_FRAGMENT); return frag; } public CommentsFragment getTagUpdatesFragment() { CommentsFragment frag = (CommentsFragment) getSupportFragmentManager() .findFragmentByTag(CommentsFragment.TAG_UPDATES_FRAGMENT); return frag; } @Override protected void onCreate(Bundle savedInstanceState) { DependencyInjectionService.getInstance().inject(this); super.onCreate(savedInstanceState); ContextManager.setContext(this); StatisticsService.sessionStart(this); new StartupService().onStartupApplication(this); } @Override protected void onResume() { super.onResume(); android.content.IntentFilter repeatFilter = new android.content.IntentFilter( AstridApiConstants.BROADCAST_EVENT_TASK_REPEATED); repeatFilter.addAction(AstridApiConstants.BROADCAST_EVENT_TASK_REPEAT_FINISHED); registerReceiver(repeatConfirmationReceiver, repeatFilter); } @Override protected void onPause() { super.onPause(); StatisticsService.sessionPause(); AndroidUtilities.tryUnregisterReceiver(this, repeatConfirmationReceiver); } @Override protected void onStop() { super.onStop(); StatisticsService.sessionStop(this); } /** * Handles items being clicked from the filterlist-fragment. Return true if item is handled. */ public boolean onFilterItemClicked(FilterListItem item) { if (this instanceof TaskListActivity && (item instanceof Filter)) { ((TaskListActivity) this).setSelectedItem((Filter) item); } if (item instanceof SearchFilter) { onSearchRequested(); StatisticsService.reportEvent(StatisticsConstants.FILTER_SEARCH); return false; } else { // If showing both fragments, directly update the tasklist-fragment Intent intent = getIntent(); if (item instanceof Filter) { Filter filter = (Filter) item; Bundle extras = configureIntentAndExtrasWithFilter(intent, filter); if (fragmentLayout == LAYOUT_TRIPLE && getTaskEditFragment() != null) { onBackPressed(); // remove the task edit fragment when switching between lists } setupTasklistFragmentWithFilter(filter, extras); // no animation for dualpane-layout AndroidUtilities.callOverridePendingTransition(this, 0, 0); StatisticsService.reportEvent(StatisticsConstants.FILTER_LIST); return true; } else if (item instanceof IntentFilter) { try { ((IntentFilter) item).intent.send(); } catch (CanceledException e) { // ignore } } return false; } } protected Bundle configureIntentAndExtrasWithFilter(Intent intent, Filter filter) { if (filter instanceof FilterWithCustomIntent) { int lastSelectedList = intent.getIntExtra(FilterListFragment.TOKEN_LAST_SELECTED, 0); intent = ((FilterWithCustomIntent) filter).getCustomIntent(); intent.putExtra(FilterListFragment.TOKEN_LAST_SELECTED, lastSelectedList); } else { intent.putExtra(TaskListFragment.TOKEN_FILTER, filter); } setIntent(intent); Bundle extras = intent.getExtras(); if (extras != null) extras = (Bundle) extras.clone(); return extras; } public void setupActivityFragment(TagData tagData) { if (fragmentLayout == LAYOUT_SINGLE) return; if (fragmentLayout == LAYOUT_TRIPLE) findViewById(R.id.taskedit_fragment_container).setVisibility(View.VISIBLE); FragmentManager manager = getSupportFragmentManager(); FragmentTransaction transaction = manager.beginTransaction(); TagCommentsFragment updates = new TagCommentsFragment(tagData); transaction.replace(R.id.taskedit_fragment_container, updates, CommentsFragment.TAG_UPDATES_FRAGMENT); transaction.commit(); } public void setupTasklistFragmentWithFilter(Filter filter, Bundle extras) { Class<?> customTaskList = null; if (SubtasksHelper.shouldUseSubtasksFragmentForFilter(filter)) customTaskList = SubtasksHelper.subtasksClassForFilter(filter); setupTasklistFragmentWithFilterAndCustomTaskList(filter, extras, customTaskList); } public void setupTasklistFragmentWithFilterAndCustomTaskList(Filter filter, Bundle extras, Class<?> customTaskList) { TaskListFragment newFragment = TaskListFragment.instantiateWithFilterAndExtras(filter, extras, customTaskList); try { FragmentManager manager = getSupportFragmentManager(); FragmentTransaction transaction = manager.beginTransaction(); transaction.replace(R.id.tasklist_fragment_container, newFragment, TaskListFragment.TAG_TASKLIST_FRAGMENT); transaction.commit(); runOnUiThread(new Runnable() { @Override public void run() { getSupportFragmentManager().executePendingTransactions(); } }); } catch (Exception e) { // Don't worry about it e.printStackTrace(); } } @Override public void onTaskListItemClicked(long taskId) { Task task = taskDao.fetch(taskId, Task.IS_READONLY, Task.IS_PUBLIC, Task.USER_ID); if (task != null) onTaskListItemClicked(taskId, task.isEditable()); } public void onTaskListItemClicked(String uuid) { Task task = taskDao.fetch(uuid, Task.ID, Task.IS_READONLY, Task.IS_PUBLIC, Task.USER_ID); if (task != null) onTaskListItemClicked(task.getId(), task.isEditable()); } @Override public void onTaskListItemClicked(long taskId, boolean editable) { if (editable) { editTask(taskId); } else { showComments(taskId); } } private void editTask(long taskId) { Intent intent = new Intent(this, TaskEditActivity.class); intent.putExtra(TaskEditFragment.TOKEN_ID, taskId); getIntent().putExtra(TaskEditFragment.TOKEN_ID, taskId); // Needs to be in activity intent so that TEA onResume doesn't create a blank activity if (getIntent().hasExtra(TaskListFragment.TOKEN_FILTER)) intent.putExtra(TaskListFragment.TOKEN_FILTER, getIntent().getParcelableExtra(TaskListFragment.TOKEN_FILTER)); if (fragmentLayout != LAYOUT_SINGLE) { TaskEditFragment editActivity = getTaskEditFragment(); findViewById(R.id.taskedit_fragment_container).setVisibility(View.VISIBLE); if (editActivity == null) { editActivity = new TaskEditFragment(); FragmentTransaction transaction = getSupportFragmentManager().beginTransaction(); transaction.add(R.id.taskedit_fragment_container, editActivity, TaskEditFragment.TAG_TASKEDIT_FRAGMENT); transaction.addToBackStack(null); transaction.commit(); runOnUiThread(new Runnable() { @Override public void run() { // Force the transaction to occur so that we can be guaranteed of the fragment existing if we try to present it getSupportFragmentManager().executePendingTransactions(); } }); } else { editActivity.save(true); editActivity.repopulateFromScratch(intent); } TaskListFragment tlf = getTaskListFragment(); if (tlf != null) tlf.loadTaskListContent(true); } else { startActivityForResult(intent, TaskListFragment.ACTIVITY_EDIT_TASK); AndroidUtilities.callOverridePendingTransition(this, R.anim.slide_left_in, R.anim.slide_left_out); } } private void showComments(long taskId) { Intent intent = new Intent(this, CommentsActivity.class); intent.putExtra(TaskCommentsFragment.EXTRA_TASK, taskId); startActivity(intent); AndroidUtilities.callOverridePendingTransition(this, R.anim.slide_left_in, R.anim.slide_left_out); } @Override public void onBackPressed() { if (isFinishing()) return; super.onBackPressed(); } // --- fragment helpers protected void removeFragment(String tag) { FragmentManager fm = getSupportFragmentManager(); Fragment fragment = fm.findFragmentByTag(tag); if (fragment != null) { FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); ft.remove(fragment); ft.commit(); } } protected Fragment setupFragment(String tag, int container, Class<? extends Fragment> cls, boolean createImmediate, boolean replace) { final FragmentManager fm = getSupportFragmentManager(); Fragment fragment = fm.findFragmentByTag(tag); if (fragment == null || replace) { Fragment oldFragment = fragment; try { fragment = cls.newInstance(); } catch (InstantiationException e) { return null; } catch (IllegalAccessException e) { return null; } FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); if (container == 0) { if (oldFragment != null && replace) ft.remove(oldFragment); ft.add(fragment, tag); } else ft.replace(container, fragment, tag); ft.commit(); if (createImmediate) runOnUiThread(new Runnable() { @Override public void run() { fm.executePendingTransactions(); } }); } return fragment; } // Voice recognizer callbacks @Override public void onSpeechResult(String result) { TaskListFragment tlf = getTaskListFragment(); if (tlf != null) { EditText box = tlf.quickAddBar.getQuickAddBox(); if (box != null) box.setText(result); } } @Override public void onSpeechError(int error) { TaskListFragment tlf = getTaskListFragment(); if (tlf != null) { QuickAddBar quickAdd = tlf.quickAddBar; if (quickAdd != null) { VoiceRecognizer vr = quickAdd.getVoiceRecognizer(); if (vr != null) vr.cancel(); } } int errorStr = 0; switch (error) { case SpeechRecognizer.ERROR_NETWORK: case SpeechRecognizer.ERROR_NETWORK_TIMEOUT: errorStr = R.string.speech_err_network; break; case SpeechRecognizer.ERROR_NO_MATCH: Toast.makeText(this, R.string.speech_err_no_match, Toast.LENGTH_LONG).show(); break; default: errorStr = R.string.speech_err_default; break; } if (errorStr > 0) DialogUtilities.okDialog(this, getString(errorStr), null); } public void switchToActiveTasks() { onFilterItemClicked(CoreFilterExposer.buildInboxFilter(getResources())); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode == RESULT_RESTART_ACTIVITY) { finish(); startActivity(getIntent()); return; } super.onActivityResult(requestCode, resultCode, data); } /** * @return LAYOUT_SINGLE, LAYOUT_DOUBLE, or LAYOUT_TRIPLE */ public int getFragmentLayout() { return fragmentLayout; } private class RepeatConfirmationReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, final Intent intent) { long taskId = intent.getLongExtra(AstridApiConstants.EXTRAS_TASK_ID, 0); if (taskId > 0) { long oldDueDate = intent.getLongExtra(AstridApiConstants.EXTRAS_OLD_DUE_DATE, 0); long newDueDate = intent.getLongExtra(AstridApiConstants.EXTRAS_NEW_DUE_DATE, 0); Task task = PluginServices.getTaskService().fetchById(taskId, DateChangedAlerts.REPEAT_RESCHEDULED_PROPERTIES); try { boolean lastTime = AstridApiConstants.BROADCAST_EVENT_TASK_REPEAT_FINISHED .equals(intent.getAction()); DateChangedAlerts.showRepeatTaskRescheduledDialog(AstridActivity.this, task, oldDueDate, newDueDate, lastTime); } catch (BadTokenException e) { // Activity not running when tried to show dialog--rebroadcast new Thread() { @Override public void run() { sendBroadcast(intent); } }.start(); } } } } }