Java tutorial
/* * Copyright 2012 The Stanford MobiSocial Laboratory * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package mobisocial.musubi.ui; import java.io.File; import java.io.IOException; import java.util.regex.Pattern; import mobisocial.metrics.MusubiMetrics; import mobisocial.musubi.App; import mobisocial.musubi.Helpers; import mobisocial.musubi.MembersActivity.FeedMembersFragment.FeedMembersCursorLoader; import mobisocial.musubi.R; import mobisocial.musubi.model.MFeed; import mobisocial.musubi.model.MIdentity; import mobisocial.musubi.model.helpers.DatabaseManager; import mobisocial.musubi.model.helpers.FeedManager; import mobisocial.musubi.model.helpers.IdentitiesManager; import mobisocial.musubi.model.helpers.MyAccountManager; import mobisocial.musubi.nearby.GpsBroadcastTask; import mobisocial.musubi.objects.FeedNameObj; import mobisocial.musubi.objects.IntroductionObj; import mobisocial.musubi.ui.util.EmojiSpannableFactory; import mobisocial.musubi.ui.util.UiUtil; import mobisocial.musubi.ui.widget.ActionBarLite; import mobisocial.musubi.ui.widget.MultiIdentitySelector; import mobisocial.musubi.ui.widget.MultiIdentitySelector.OnRequestAddIdentityListener; import mobisocial.musubi.util.CommonLayouts; import mobisocial.musubi.util.InstrumentedActivity; import mobisocial.musubi.util.PhotoTaker; import mobisocial.musubi.util.UriImage; import mobisocial.socialkit.Obj; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.res.Configuration; import android.database.Cursor; import android.database.sqlite.SQLiteOpenHelper; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Color; import android.net.Uri; import android.os.AsyncTask; import android.os.Bundle; import android.provider.ContactsContract; import android.provider.ContactsContract.Intents.Insert; import android.provider.MediaStore; import android.provider.Settings; import android.support.v4.app.DialogFragment; import android.support.v4.app.LoaderManager; import android.support.v4.app.SupportActivity; import android.support.v4.content.Loader; import android.text.Editable; import android.text.Spannable; import android.text.TextWatcher; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.view.WindowManager; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.Button; import android.widget.CursorAdapter; import android.widget.EditText; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.RelativeLayout; import android.widget.TextView; public class FeedDetailsActivity extends MusubiBaseActivity implements OnItemClickListener, LoaderManager.LoaderCallbacks<Cursor> { DatabaseManager mDb; private static final int sDeletedColor = Color.parseColor("#66FF3333"); boolean mDetailsChanged = false; byte[] mThumbnailBytes; ImageView mThumbnailView; EditText mNameEditText; EditText mBroadcastPassword; ListView mFeedMembersView; Context mContext; IdentitiesManager mIdentitiesManager; ContactListCursorAdapter mContacts; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mContext = this; setContentView(R.layout.feed_details); setTitle("Feed Details"); mDb = new DatabaseManager(this); SQLiteOpenHelper helper = App.getDatabaseSource(this); mIdentitiesManager = new IdentitiesManager(helper); mContacts = new ContactListCursorAdapter(this, null); mFeedMembersView = (ListView) findViewById(R.id.feed_details_members_list); LayoutInflater inflater = getLayoutInflater(); ViewGroup header = (ViewGroup) inflater.inflate(R.layout.feed_details_header, mFeedMembersView, false); mFeedMembersView.addHeaderView(header, null, false); mFeedMembersView.setTextFilterEnabled(true); mFeedMembersView.setFastScrollEnabled(true); mFeedMembersView.setOnItemClickListener(this); mFeedMembersView.setCacheColorHint(Color.WHITE); mFeedMembersView.setAdapter(mContacts); mNameEditText = (EditText) header.findViewById(R.id.feed_title_edittext); mBroadcastPassword = (EditText) header.findViewById(R.id.broadcast_password); mThumbnailView = (ImageView) header.findViewById(R.id.icon); String name = null; if (savedInstanceState != null) { name = savedInstanceState.getString("name"); mThumbnailBytes = savedInstanceState.getByteArray("thumbnailBytes"); mDetailsChanged = savedInstanceState.getBoolean("detailsChanged"); } else { Long feedId = Long.parseLong(getIntent().getData().getLastPathSegment()); MFeed feed = mDb.getFeedManager().lookupFeed(feedId); name = UiUtil.getFeedNameFromMembersList(mDb.getFeedManager(), feed); mThumbnailBytes = mDb.getFeedManager().getFeedThumbnailForId(feedId); } Spannable span = EmojiSpannableFactory.getInstance(this).newSpannable(name); mNameEditText.setText(span); mNameEditText.addTextChangedListener(new TextWatcher() { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { mDetailsChanged = true; refreshUI(); } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void afterTextChanged(Editable s) { EmojiSpannableFactory.getInstance(mContext).updateSpannable(s); } }); getSupportLoaderManager().initLoader(0, null, this); refreshUI(); } public void onClickAddMembers(View v) { ((InstrumentedActivity) this).showDialog(AddPeopleDialog.newInstance(getIntent().getData())); } public void onClickIcon(View v) { SelectImageDialogFragment sidf = SelectImageDialogFragment.newInstance(); showDialog(sidf); } public void onClickBroadcast(View v) { long id = Long.parseLong(getIntent().getData().getLastPathSegment()); FeedManager fm = new FeedManager(App.getDatabaseSource(this)); final MFeed f = fm.lookupFeed(id); String provider = Settings.Secure.getString(this.getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED); if (provider == null || !provider.contains("gps") || !provider.contains("network")) { new AlertDialog.Builder(this).setTitle("Location Settings").setMessage( "You should enable both network-based and GPS-based location services to ensure your friends can find your groups.") .setNegativeButton("Share Anyway", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { new GpsBroadcastTask(mContext, f, mBroadcastPassword.getText().toString()).execute(); } }).setPositiveButton("Fix Settings First", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { try { Intent myIntent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS); startActivity(myIntent); } catch (Throwable t) { Log.e(TAG, "failed to launch location settings", t); } } }).show(); } else { new GpsBroadcastTask(mContext, f, mBroadcastPassword.getText().toString()).execute(); } } @Override public void onBackPressed() { onClickSave(null); } public void onClickSave(View v) { if (mDetailsChanged) { String name = mNameEditText.getText().toString(); Obj obj = FeedNameObj.from(name, mThumbnailBytes); Helpers.sendToFeed(this, obj, getIntent().getData()); } finish(); } public void onClickCancel(View v) { finish(); } public void refreshUI() { if (mDetailsChanged) { findViewById(R.id.submit).setVisibility(View.VISIBLE); findViewById(R.id.cancel).setVisibility(View.VISIBLE); } else { findViewById(R.id.submit).setVisibility(View.GONE); findViewById(R.id.cancel).setVisibility(View.GONE); } if (mThumbnailBytes != null) { Bitmap bitmap = BitmapFactory.decodeByteArray(mThumbnailBytes, 0, mThumbnailBytes.length); mThumbnailView.setImageBitmap(bitmap); } else { mThumbnailView.setImageResource(R.drawable.group_icon); } } @Override protected void onSaveInstanceState(Bundle outState) { outState.putString("name", mNameEditText.getText().toString()); outState.putByteArray("thumbnailBytes", mThumbnailBytes); outState.putBoolean("detailsChanged", mDetailsChanged); } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode != RESULT_OK) { return; } if (SelectImageDialogFragment.isImageRequest(requestCode)) { new SelectImageDialogFragment.ThumbnailAsyncTask(this, requestCode, data) { protected void onPreExecute() { }; @Override protected void onThumbnailResult(byte[] imageBytes) { if (imageBytes != null) { mThumbnailBytes = imageBytes; mDetailsChanged = true; refreshUI(); } else { toast("Failed to load image"); } }; }.execute(); } } public static class SelectImageDialogFragment extends DialogFragment implements DialogInterface.OnClickListener { public static final int REQUEST_CAMERA_IMAGE = 58; public static final int REQUEST_GALLERY_IMAGE = 59; static final int SOURCE_CAMERA = 0; static final int SOURCE_GALLERY = 1; public static SelectImageDialogFragment newInstance() { Bundle args = new Bundle(); SelectImageDialogFragment sidf = new SelectImageDialogFragment(); sidf.setArguments(args); return sidf; } public static boolean isImageRequest(int requestCode) { return (requestCode == REQUEST_CAMERA_IMAGE || requestCode == REQUEST_GALLERY_IMAGE); } @Override public Dialog onCreateDialog(Bundle savedInstanceState) { String[] sources = new String[] { "From Camera", "From Gallery" }; return new AlertDialog.Builder(getActivity()).setTitle("Choose an image...").setItems(sources, this) .create(); } @Override public void onClick(DialogInterface dialog, int which) { switch (which) { case SOURCE_CAMERA: final Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(PhotoTaker.getTempFile(getActivity()))); getActivity().startActivityForResult(intent, REQUEST_CAMERA_IMAGE); break; case SOURCE_GALLERY: Intent gallery = new Intent(Intent.ACTION_GET_CONTENT); gallery.setType("image/*"); getActivity().startActivityForResult(gallery, REQUEST_GALLERY_IMAGE); break; } } public static abstract class ThumbnailAsyncTask extends AsyncTask<Void, Void, byte[]> { final Context mContext; final int mRequestCode; final Intent mData; public ThumbnailAsyncTask(Context context, int requestCode, Intent data) { mContext = context; mRequestCode = requestCode; mData = data; } @Override protected byte[] doInBackground(Void... params) { Uri imageUri; switch (mRequestCode) { case REQUEST_CAMERA_IMAGE: File imageFile = PhotoTaker.getTempFile(mContext); imageUri = Uri.fromFile(imageFile); break; case REQUEST_GALLERY_IMAGE: if (mData != null) { imageUri = mData.getData(); } else { imageUri = null; } break; default: imageUri = null; } if (imageUri != null) { UriImage uriImage = new UriImage(mContext, imageUri); try { return uriImage.getResizedImageData(300, 300, 20 * 1024, true); } catch (IOException e) { Log.e(TAG, "Error decoding image", e); return null; } } else { Log.e(TAG, "bad request code"); return null; } } @Override protected final void onPostExecute(byte[] result) { onThumbnailResult(result); } protected abstract void onThumbnailResult(byte[] imageBytes); } } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); refreshUI(); } @Override public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) { long feedId = Long.parseLong(getIntent().getData().getLastPathSegment()); return new FeedMembersCursorLoader(this, feedId); } @Override public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) { mContacts.changeCursor(cursor); } @Override public void onLoaderReset(Loader<Cursor> arg0) { } @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Cursor cursor = (Cursor) mContacts.getItem(position - 1); long identityId = cursor.getLong(cursor.getColumnIndexOrThrow(MIdentity.COL_ID)); Intent intent = new Intent(this, ViewProfileActivity.class); intent.putExtra(ViewProfileActivity.PROFILE_ID, identityId); this.startActivity(intent); } private class ContactListCursorAdapter extends CursorAdapter { public ContactListCursorAdapter(Context context, Cursor c) { super(context, c); } @Override public View newView(Context context, Cursor c, ViewGroup parent) { final LayoutInflater inflater = LayoutInflater.from(context); View v = inflater.inflate(R.layout.contacts_item, parent, false); bindView(v, context, c); return v; } @Override public void bindView(View v, Context context, Cursor cursor) { TextView unreadCount = (TextView) v.findViewById(R.id.unread_count); unreadCount.setVisibility(View.GONE); TextView nameText = (TextView) v.findViewById(R.id.name_text); TextView statusText = (TextView) v.findViewById(R.id.status_text); TextView principalText = (TextView) v.findViewById(R.id.principal_text); final ImageView icon = (ImageView) v.findViewById(R.id.icon); final ImageView presenceIcon = (ImageView) v.findViewById(R.id.presence_icon); presenceIcon.setVisibility(View.GONE); final ImageView nearbyIcon = (ImageView) v.findViewById(R.id.nearby_icon); nearbyIcon.setVisibility(View.GONE); final ImageView more = (ImageView) v.findViewById(R.id.more); long identityId = cursor.getLong(0); final MIdentity member = mIdentitiesManager.getIdentityForId(identityId); if (member == null) { unreadCount.setVisibility(View.INVISIBLE); nameText.setText("Missing contact data..."); statusText.setText(""); icon.setImageResource(R.drawable.ic_contact_picture); return; } nameText.setText(UiUtil.safeNameForIdentity(member)); principalText.setText(UiUtil.safePrincipalForIdentity(member)); icon.setImageBitmap(UiUtil.safeGetContactThumbnail(context, mIdentitiesManager, member)); //nearbyIcon.setVisibility(c.nearby ? View.VISIBLE : View.GONE); more.setVisibility(View.GONE); ImageView musubiEnabled = (ImageView) v.findViewById(R.id.musubi_enabled); ImageView ignoredOverlay = (ImageView) v.findViewById(R.id.ignored_overlay); if (member.claimed_) { ignoredOverlay.setVisibility(View.GONE); nameText.setTextColor(Color.BLACK); principalText.setTextColor(Color.BLACK); musubiEnabled.setBackgroundResource(R.drawable.musubi_enabled); } else { ignoredOverlay.setVisibility(View.GONE); nameText.setTextColor(Color.BLACK); principalText.setTextColor(Color.BLACK); musubiEnabled.setBackgroundResource(R.drawable.musubi_disabled); } if (member.blocked_) { nameText.setTextColor(sDeletedColor); principalText.setTextColor(sDeletedColor); ignoredOverlay.setVisibility(View.VISIBLE); } } } public static class AddPeopleDialog extends DialogFragment { private static final int REQUEST_ADD_CONTACT = 0; MultiIdentitySelector mmIdentitySelector; Activity mActivity; public static AddPeopleDialog newInstance(Uri feedUri) { AddPeopleDialog f = new AddPeopleDialog(); Bundle args = new Bundle(); args.putParcelable("feedUri", feedUri); f.setArguments(args); return f; } @Override public void onAttach(SupportActivity activity) { super.onAttach(activity); mActivity = activity.asActivity(); mActivity.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING); } @Override public void onDetach() { super.onDetach(); mActivity.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setStyle(STYLE_NO_TITLE, R.style.Theme_D1tranlucent); } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == REQUEST_ADD_CONTACT) { if (resultCode == Activity.RESULT_OK) { UiUtil.addedContact(mActivity, data, mmIdentitySelector); } } } private OnRequestAddIdentityListener mOnRequestAddIdentityListener = new OnRequestAddIdentityListener() { @Override public void onRequestAddIdentity(String enteredText) { Intent i = new Intent(Intent.ACTION_INSERT_OR_EDIT); i.setType(ContactsContract.Contacts.CONTENT_ITEM_TYPE); if (enteredText != null) { Pattern emailPattern = Pattern.compile("\\b[A-Z0-9._%-]+@[A-Z0-9.-]+\\.[A-Z]{2,4}\\b", Pattern.CASE_INSENSITIVE); if (emailPattern.matcher(enteredText).matches()) { i.putExtra(Insert.EMAIL, enteredText); } else { i.putExtra(Insert.NAME, enteredText); } } startActivityForResult(i, REQUEST_ADD_CONTACT); } }; @Override public Dialog onCreateDialog(Bundle savedInstanceState) { // Framework builds dialog with view defined in onCreateView. Dialog dialog = super.onCreateDialog(savedInstanceState); dialog.getWindow().getAttributes().windowAnimations = R.style.Animation_SlideFromTopHalfHeight; dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE); return dialog; } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { Context context = getActivity(); LinearLayout v = new LinearLayout(context); v.setMinimumWidth(500); v.setLayoutParams(CommonLayouts.FULL_WIDTH); v.setOrientation(LinearLayout.VERTICAL); v.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { dismiss(); } }); RelativeLayout.LayoutParams params; ///////////// // Action bar ///////////// ActionBarLite actionBar = new ActionBarLite(context); actionBar.setId(R.id.name); actionBar.setTitle("Add People"); v.addView(actionBar); //// // Custom action bar area //// RelativeLayout contentFrame = new RelativeLayout(context); contentFrame.setLayoutParams(CommonLayouts.FULL_WIDTH); contentFrame.setBackgroundDrawable(actionBar.getBackground()); // "Add" button Button b = new Button(context); b.setText(R.string.add); b.setOnClickListener(mmGoListener); params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); params.addRule(RelativeLayout.ALIGN_PARENT_RIGHT); params.addRule(RelativeLayout.BELOW, R.id.name); b.setLayoutParams(params); b.setId(R.id.add_contact); contentFrame.addView(b); // Multi-select textbox mmIdentitySelector = new MultiIdentitySelector(context); params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.FILL_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT); params.addRule(RelativeLayout.ALIGN_PARENT_LEFT); params.addRule(RelativeLayout.LEFT_OF, R.id.add_contact); params.addRule(RelativeLayout.BELOW, R.id.name); mmIdentitySelector.setLayoutParams(params); mmIdentitySelector.setId(R.id.people); contentFrame.addView(mmIdentitySelector); mmIdentitySelector.setOnRequestAddIdentityListener(mOnRequestAddIdentityListener); int sz = 40; sz = (int) (sz * getResources().getDisplayMetrics().density / 160); actionBar.getCustomBar().addView(contentFrame); return v; } //TODO: this code makes pretty poor use for local vars/member vars to making it clear //and not wasteful final View.OnClickListener mmGoListener = new View.OnClickListener() { @Override public void onClick(View v) { if (mmIdentitySelector.getSelectedIdentities().size() == 0) { dismiss(); return; } Uri feedUri = getArguments().getParcelable("feedUri"); long feedId = Long.parseLong(feedUri.getLastPathSegment()); FeedManager fm = new FeedManager(App.getDatabaseSource(mActivity)); for (MIdentity id : mmIdentitySelector.getSelectedIdentities()) { fm.ensureFeedMember(feedId, id.id_); } UiUtil.addToWhitelistsIfNecessary(fm, new MyAccountManager(App.getDatabaseSource(mActivity)), fm.getFeedMembers(fm.lookupFeed(feedId)), true); // Send an invisble feed object to force the feed to detect new members // and recognize their names and email addresses. Obj invitedObj = IntroductionObj.from(mmIdentitySelector.getSelectedIdentities(), true); Helpers.sendToFeed(mActivity, invitedObj, feedUri); App.getUsageMetrics(mActivity).report(MusubiMetrics.ADDED_PERSON_TO_FEED, "" + mmIdentitySelector.getSelectedIdentities().size()); dismiss(); } }; } }