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私のアプリケーションには2つのアクティビティがあります。リサイクルビューをソートする方法、アイテムが開いている場合は未読とアンボールドの場合は太字アイテムですか？
activityMainは、第三の断片が会話リストで3つの断片 を含みます。これは、各Itemが特定のチャットにつながるrecylerViewです。
activityConversationにはチャットが含まれています。
まず、「last actives」の順番でrecyclerViewの会話を並べ替えたいと思います。最も最近のアクティブはリストの上に表示され、2番目の最後のアクティブは2番目のポストなどに表示されます。
第2に、recyclerViewの各ItemにはTextviewが含まれています。各項目について、このTexviewに関連するチャットに投稿された最後のメッセージを表示したいと思います。
最後に、最後のチャットの更新まで会話が開かれていないため、これらのItem textViewsを太字で表示したいと思います。
これを達成するためのアイデアは誰かありますか？
ここに私のチャットアクティビティ：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_conversation);
getWindow().setBackgroundDrawableResource(R.drawable._background_black_lchatxxxhdpi) ;
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.open, R.string.close);
mDrawerLayout.addDrawerListener(mToggle);
mToggle.syncState();
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
LinearLayout leftNav = (LinearLayout)findViewById(R.id.conv_left_nav);
LinearLayout helperAdmin = (LinearLayout) getLayoutInflater().inflate(R.layout.list_participant_admin, leftNav, false);
leftNav.addView(helperAdmin);
final EditText input_post = (EditText)findViewById(R.id.input_post);
context = this;
input_post.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
ImageButton btn_submit = (ImageButton)findViewById(R.id.btn_submit);
btn_submit.setEnabled(!TextUtils.isEmpty(s.toString().trim()));
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable s) {
// TODO Auto-generated method stub
}
});
Intent intent = getIntent();
if (intent.hasExtra("conversationId"))
conversationId = intent.getStringExtra("conversationId");
rpcHelper = new RPCHelper(context, this);
String unique_device_id = Settings.Secure.getString(this.getContentResolver(), Settings.Secure.ANDROID_ID);
Log.i("US", unique_device_id);
rpcHelper.loginOrRegister(unique_device_id, new AsyncResponseListener() {
@Override
public void onResponse(JSONArray response) throws JSONException {
refreshConversation();
}
@Override
public void onResponse() {
}
@Override
public void onResponse(Bitmap bm) {
}
@Override
public void onPreExecute() {
}
});
dbHelper = new DataBaseHelper(context, "us", null, Statics.DB_VERSION);
userInConv = dbHelper.dbReader.getUserInConversation(Integer.parseInt(conversationId));
storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
leftRecycler = (RecyclerView) helperAdmin.findViewById(R.id.conv_left_recycler);
//mRecyclerView.setHasFixedSize(true);
// use a linear layout manager
leftLayoutManager = new LinearLayoutManager(this);
leftRecycler.setLayoutManager(leftLayoutManager);
leftAdapter = new ConvLeftAdapter(userInConv, storageDir, Integer.parseInt(conversationId));
leftRecycler.setAdapter(leftAdapter);
helpersImg = new View[3];
helpers = new DataBaseReader.User[3];
photos = dbHelper.dbReader.getPhotosInConversation(Integer.parseInt(conversationId));
photoRecycler = (RecyclerView) findViewById(R.id.photo_recycler);
photoLayoutManager = new GridLayoutManager(this, Math.max(photos.length, 1));
photoRecycler.setLayoutManager(photoLayoutManager);
rightAdapter = new ConvRightAdapter(photos, storageDir, context);
photoRecycler.setAdapter(rightAdapter);
IntentFilter filter = new IntentFilter(Statics.ACTION_NEW_POST);
this.registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context ctx, Intent intent) {
Log.d("new", " message");
refreshConversation();
}
}, filter);
}
@Override
public void onNewIntent(Intent intent){
if (intent.hasExtra("conversationId"))
conversationId = intent.getStringExtra("conversationId");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_conversation, menu);
DataBaseReader.Conversation conversation = dbHelper.dbReader.getConversation(conversationId);
DataBaseReader.User owner = dbHelper.dbReader.getConversationOwner(conversationId);
final ImageView owner_img = (ImageView)findViewById(R.id.img_userprofilpic);
TextView owner_name = (TextView)findViewById(R.id.lbl_username_owner);
TextView owner_city = (TextView)findViewById(R.id.lbl_usercity_owner);
TextView conversation_question = (TextView)findViewById(R.id.question_text);
owner_name.setText(owner.name);
owner_city.setText(owner.city);
conversation_question.setText(conversation.question.text);
conversation_question.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
TextView text = (TextView)findViewById(R.id.question_text);
int maxLines = TextViewCompat.getMaxLines(text);
if (maxLines==2){
text.setMaxLines(Integer.MAX_VALUE);
}
else{
text.setMaxLines(2);
}
}
});
rpcHelper.getPhoto(storageDir + "/", owner.photo, new AsyncResponseListener() {
@Override
public void onResponse(JSONArray response) throws JSONException {
}
@Override
public void onResponse() {
}
@Override
public void onResponse(Bitmap bm) {
owner_img.setImageBitmap(bm);
}
@Override
public void onPreExecute() {
}
});
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if(mToggle.onOptionsItemSelected(item)){
return true;
}
return super.onOptionsItemSelected(item);
}
public void refreshConversation(){
dbHelper.dbSyncer.syncPosts(rpcHelper.user_id, new AsyncResponseListener() {
@Override
public void onResponse(JSONArray response) throws JSONException {
DataBaseReader.Post[] posts = dbHelper.dbReader.getPosts(conversationId);
postsRecycler = (RecyclerView) findViewById(R.id.posts_recycler);
postsLayoutManager = new LinearLayoutManager(context);
postsRecycler.setLayoutManager(postsLayoutManager);
postsAdapter = new PostsAdapter(posts, storageDir, rpcHelper);
postsRecycler.setAdapter(postsAdapter);
postsRecycler.scrollToPosition(postsAdapter.getItemCount() - 1);
}
@Override
public void onResponse() {
}
@Override
public void onResponse(Bitmap bm) {
}
@Override
public void onPreExecute() {
}
});
/* rpcHelper.getPosts（はconversationId、新しいAsyncResponseListener（）{
@Override
public void onResponse(JSONArray response) throws JSONException {
LinearLayout posts_root = (LinearLayout) findViewById(R.id.posts_root);
posts_root.removeAllViews();
for (int i = 0; i < response.length(); i++){
Log.d("Conv refresh", response.get(i) + "");
final JSONObject jConversation = (JSONObject) response.get(i);
LinearLayout post;
if (jConversation.getString("userId") == rpcHelper.user_id) {
post = (LinearLayout) getLayoutInflater().inflate(R.layout.item_chatpost_sent, posts_root, false);
}
else{
post = (LinearLayout) getLayoutInflater().inflate(R.layout.item_chatpost_received, posts_root, false);
((TextView)post.findViewById(R.id.post_name_)).setText(jConversation.getString("name"));
}
((TextView)post.findViewById(R.id.lbl_message_chat)).setText(jConversation.getString("text"));
posts_root.addView(post);
}
hideProcessDialog();
}
@Override
public void onResponse() {
}
@Override
public void onResponse(Bitmap bm) {
}
@Override
public void onPreExecute() {
}
});*/
}
public void onSubmit(View v){
final EditText input_post = (EditText)findViewById(R.id.input_post);
String post_text = input_post.getText().toString();
rpcHelper.post(conversationId, post_text, new AsyncResponseListener() {
@Override
public void onResponse(JSONArray response) throws JSONException {
refreshConversation();
input_post.setText("");
}
@Override
public void onResponse() {
}
@Override
public void onResponse(Bitmap bm) {
}
@Override
public void onPreExecute() {
}
});
}
Button no = (Button)alertDialog.findViewById(R.id.btn_cancel);
no.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
helpersImg[0] = null;
helpersImg[1] = null;
helpersImg[2] = null;
helpers[0] = null;
helpers[1] = null;
helpers[2] = null;
alertDialog.dismiss();
}
});
}
public void onSelectUser(View v){
View vi = snapHelper.findSnapView(participantsLayoutManager);
if (helpersImg[0] == vi || helpersImg[1] == vi || helpersImg[2] == vi)
return;
Log.i("get helper Id", ""+ participantsAdapter.selectedUserId);
ImageView photo = (ImageView) vi.findViewById(R.id.img_userprofilpic);
photo.setDrawingCacheEnabled(true);
Bitmap bmap = photo.getDrawingCache();
ImageView helperImage = null;
if (helpersImg[0] == null) {
helperImage = (ImageView) alertDialog.findViewById(R.id.reward_dialog_helper0);
helpersImg[0] = vi;
helperImage.setImageBitmap(bmap);
photo.setColorFilter(Color.rgb(123, 123, 123), android.graphics.PorterDuff.Mode.MULTIPLY);
helpers[0] = userInConv[participantsAdapter.selectedUserId];
}
else if (helpersImg[1] == null){
helperImage = (ImageView) alertDialog.findViewById(R.id.reward_dialog_helper1);
helpersImg[1] = vi;
helperImage.setImageBitmap(bmap);
photo.setColorFilter(Color.rgb(123, 123, 123), android.graphics.PorterDuff.Mode.MULTIPLY);
helpers[1] = userInConv[participantsAdapter.selectedUserId];
}
else if (helpersImg[2] == null){
helperImage = (ImageView) alertDialog.findViewById(R.id.reward_dialog_helper2);
helpersImg[2] = vi;
helperImage.setImageBitmap(bmap);
photo.setColorFilter(Color.rgb(123, 123, 123), android.graphics.PorterDuff.Mode.MULTIPLY);
helpers[1] = userInConv[participantsAdapter.selectedUserId];
}
else{
return;
}
}
/**private void showTipDialog(){
final AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(context);
LayoutInflater inflater = LayoutInflater.from(context);
final View dialogView = inflater.inflate(R.layout.dialog_add_tip, null);
final EditText value = (EditText) dialogView.findViewById(R.id.tip_value);
final SeekBar sb = (SeekBar) dialogView.findViewById(R.id.seekBar);
sb.setMax(50);
sb.setProgress(5);
sb.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean b) {
progress = (Math.round(progress/5))*5;
seekBar.setProgress(progress);
value.setText(String.valueOf(progress));
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
value.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// Convert text to integer. Do you already use editText.setInputType(InputType.TYPE_CLASS_NUMBER), don't you?
Integer enteredProgress = Integer.valueOf(s.toString());
sb.setProgress(enteredProgress);
}
@Override
public void afterTextChanged(Editable s) {}});
dialogBuilder.setView(dialogView);
alertDialog = dialogBuilder.create();
alertDialog.show();
Button ok = (Button)alertDialog.findViewById(R.id.btn_ok);
ok.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
alertDialog.dismiss();
}
});
Button no = (Button)alertDialog.findViewById(R.id.btn_no);
no.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
alertDialog.dismiss();
}
});
}*/
public void removeHelper(View v){
int index = 0;
if (v == alertDialog.findViewById(R.id.reward_dialog_helper0)){
index = 0;
}
else if (v == alertDialog.findViewById(R.id.reward_dialog_helper1)){
index = 1;
}
else if (v == alertDialog.findViewById(R.id.reward_dialog_helper2)){
index = 2;
}
if (helpersImg[index] == null){
return;
}
ImageView photo = (ImageView) helpersImg[index].findViewById(R.id.img_userprofilpic);
photo.setDrawingCacheEnabled(true);
photo.clearColorFilter();
helpersImg[index] = null;
helpers[index] = null;
ImageView imv = (ImageView)v;
imv.setImageResource(R.drawable.stroke_rounded_corners_white);
}
private void showProcessDialog(){
pd = new ProgressDialog(this);
pd.setTitle("Processing");
pd.setMessage("Please wait...");
pd.setCancelable(false);
pd.setIndeterminate(true);
pd.show();
}
private void hideProcessDialog(){
pd.hide();
}
@Override
public void onInternetConnectionLost() {
}
@Override
public void onInternetConnectionFound() {
}
public void onTakePicture(View v){
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
startActivityForResult(takePictureIntent, Statics.REQUEST_IMAGE_CAPTURE);
}
}
public void onTakePictureFromGallery(View v){
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,
"Select Picture"), Statics.REQUEST_PROFILE_IMAGE_GALLERY);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Bitmap imageBitmap;
if ((requestCode == Statics.REQUEST_IMAGE_CAPTURE || requestCode == Statics.REQUEST_IMAGE_CAPTURE_0
|| requestCode == Statics.REQUEST_IMAGE_CAPTURE_1 || requestCode == Statics.REQUEST_IMAGE_CAPTURE_2) && resultCode == RESULT_OK && data != null) {
Bundle extras = data.getExtras();
if (extras == null){
return;
}
imageBitmap = (Bitmap) extras.get("data");
addPhoto(imageBitmap);
}
else if (requestCode == Statics.REQUEST_PROFILE_IMAGE_GALLERY && resultCode == RESULT_OK){
try {
imageBitmap = getBitmapFromUri(data.getData());
addPhoto(imageBitmap);
} catch (IOException e) {
e.printStackTrace();
}
}
}
private void addPhoto(Bitmap image) {
DataBaseReader.Conversation c = dbHelper.dbReader.getConversation(conversationId);
String encodedImage = encodeBitmap(image);
rpcHelper.addPhotosToQuestion("" + c.question.id, encodedImage, null, null, new AsyncResponseListener() {
@Override
public void onResponse(JSONArray response) throws JSONException {
dbHelper.dbSyncer.sync(rpcHelper.user_id, new AsyncResponseListener() {
@Override
public void onResponse(JSONArray response) throws JSONException {
photos = dbHelper.dbReader.getPhotosInConversation(Integer.parseInt(conversationId));
photoRecycler = (RecyclerView) findViewById(R.id.photo_recycler);
photoLayoutManager = new GridLayoutManager(context, Math.max(photos.length, 1));
photoRecycler.setLayoutManager(photoLayoutManager);
rightAdapter = new ConvRightAdapter(photos, storageDir, context);
photoRecycler.setAdapter(rightAdapter);
}
@Override
public void onResponse() {
photos = dbHelper.dbReader.getPhotosInConversation(Integer.parseInt(conversationId));
photoRecycler = (RecyclerView) findViewById(R.id.photo_recycler);
photoLayoutManager = new GridLayoutManager(context, Math.max(photos.length, 1));
photoRecycler.setLayoutManager(photoLayoutManager);
rightAdapter = new ConvRightAdapter(photos, storageDir, context);
photoRecycler.setAdapter(rightAdapter);
}
@Override
public void onResponse(Bitmap bm) {
}
@Override
public void onPreExecute() {
}
});
}
@Override
public void onResponse() {
}
@Override
public void onResponse(Bitmap bm) {
}
@Override
public void onPreExecute() {
}
});
}
private String encodeBitmap(Bitmap bitmap){
try{
bitmap = Bitmap.createScaledBitmap(bitmap, Statics.BITMAP_WIDTH, Statics.BITMAP_HEIGHT, true);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 90, stream);
final byte[] imageInByte = stream.toByteArray();
return Base64.encodeToString(imageInByte, Base64.DEFAULT);
}
catch(Exception e){
return "";
}
}
private Bitmap getBitmapFromUri(Uri uri) throws IOException {
ParcelFileDescriptor parcelFileDescriptor =
getContentResolver().openFileDescriptor(uri, "r");
FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();
Bitmap image = BitmapFactory.decodeFileDescriptor(fileDescriptor);
parcelFileDescriptor.close();
return image;
}
}
これは会話リストと私の断片です。 public class ConversationFragment extendsフラグメント{
private View v;
private OnFragmentInteractionListener mListener;
public ConversationFragment() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @return A new instance of fragment ConversationFragment.
*/
// TODO: Rename and change types and number of parameters
public static ConversationFragment newInstance() {
ConversationFragment fragment = new ConversationFragment();
Bundle args = new Bundle();
//args.putString(ARG_PARAM1, param1);
//args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
if (v == null) {
v = inflater.inflate(R.layout.fragment_conversation, container, false);
}
final SwipeRefreshLayout swipeRefresh = (SwipeRefreshLayout)v.findViewById(R.id.swiperefreshconv);
swipeRefresh.post(new Runnable() {
@Override
public void run() {
swipeRefresh.setRefreshing(true);
}
});
swipeRefresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
mListener.syncDb();
}
});
return v;
}
@Override
public void onStart(){
super.onStart();
mListener.refreshConversations();
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
}
これは私の会話アダプタです： パブリッククラスConversationsAdapterはRecyclerView.Adapter { 民間最終ファイルmStorageDirを拡張。 プライベート最終RPCHelper mRPCHelper; プライベートDataBaseReader.Conversation [] mDataset;
Context context;
// Provide a reference to the views for each data item
// Complex data items may need more than one view per item, and
// you provide access to all the views for a data item in a view holder
public static class ViewHolder extends RecyclerView.ViewHolder {
// each data item is just a string in this case
public View mView;
public ViewHolder(View v) {
super(v);
mView = v;
}
}
// Provide a suitable constructor (depends on the kind of dataset)
public ConversationsAdapter(DataBaseReader.Conversation[] myDataset, File storageDir) {
mDataset = myDataset;
mStorageDir = storageDir;
mRPCHelper = new RPCHelper();
}
// Create new views (invoked by the layout manager)
@Override
public ConversationsAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
int viewType) {
// create a new view
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.item_conversations, parent, false);
ViewHolder vh = new ViewHolder(v);
context = parent.getContext();
return vh;
}
// Replace the contents of a view (invoked by the layout manager)
@Override
public void onBindViewHolder(ViewHolder holder, final int position) {
// - get element from your dataset at this position
// - replace the contents of the view with that element
Log.d("recy", "bind called");
TextView username = (TextView)holder.mView.findViewById(R.id.lbl_username);
final TextView message = (TextView)holder.mView.findViewById(R.id.question_text);
TextView date_and_time = (TextView)holder.mView.findViewById(R.id.lbl_date_and_time);
ImageView status_pending = (ImageView)holder.mView.findViewById(R.id.lbl_status_conversation_pending);
ImageView status_in = (ImageView)holder.mView.findViewById(R.id.lbl_status_conversation_in);
TextView keyword0 = (TextView)holder.mView.findViewById(R.id.post_keywords0);
TextView keyword1 = (TextView)holder.mView.findViewById(R.id.post_keywords1);
TextView keyword2 = (TextView)holder.mView.findViewById(R.id.post_keywords2);
ImageView userprofilpic = (ImageView)holder.mView.findViewById(R.id.img_userprofilpic);
LinearLayout answer_info = (LinearLayout) holder.mView.findViewById(R.id.answer_info);
Button delete_coversation = (Button) holder.mView.findViewById(R.id.btn_confirm_delete);
userprofilpic.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(context, UserProfileActivity.class);
i.putExtra("userId", mDataset[position].question.userId);
context.startActivity(i);
}
});
username.setText(mDataset[position].question.userName);
message.setText(mDataset[position].question.text);
keyword0.setText(mDataset[position].question.keywords[0]);
keyword1.setText(mDataset[position].question.keywords[1]);
keyword2.setText(mDataset[position].question.keywords[2]);
addImgToView(mDataset[position].question.photo, userprofilpic);
if (Integer.parseInt(mDataset[position].confirmed) == 1) {
status_pending.setEnabled(false);
status_pending.setVisibility(View.GONE);
status_in.setVisibility(View.VISIBLE);
answer_info.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
message.setTypeface(Typeface.DEFAULT);
message.onSaveInstanceState();
int convId = mDataset[position].id;
Intent i = new Intent(context, ConversationActivity.class);
i.putExtra("conversationId", "" + convId);
context.startActivity(i);
}
});
}
}
// Return the size of your dataset (invoked by the layout manager)
@Override
public int getItemCount() {
return mDataset.length;
}
private void addImgToView(final String uri, final ImageView v){
mRPCHelper.getPhoto(mStorageDir + "/", uri, new AsyncResponseListener() {
@Override
public void onResponse(JSONArray response) throws JSONException {
}
@Override
public void onResponse() {
}
@Override
public void onResponse(Bitmap bm) {
v.setImageBitmap(bm);
}
@Override
public void onPreExecute() {
}
});
}
}
お時間を事前にありがとうございます。
ありがとうございます。 – Flo