Java tutorial
/** * Copyright Google Inc. All Rights Reserved. * <p/> * 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 * <p/> * http://www.apache.org/licenses/LICENSE-2.0 * <p/> * 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 edu.sfsu.csc780.chathub.ui; import android.Manifest; import android.app.Activity; import android.app.Dialog; import android.app.ProgressDialog; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.content.pm.PackageManager; import android.content.res.AssetManager; import android.graphics.Bitmap; import android.graphics.Typeface; import android.media.MediaPlayer; import android.media.MediaRecorder; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.os.Environment; import android.preference.PreferenceManager; import android.provider.MediaStore; import android.support.annotation.NonNull; import android.support.v4.app.ActivityCompat; import android.support.v4.app.DialogFragment; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentTransaction; import android.support.v4.app.LoaderManager; import android.support.v4.content.ContextCompat; import android.support.v4.content.Loader; import android.support.v7.app.AlertDialog; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.text.Editable; import android.text.InputFilter; import android.text.TextWatcher; import android.util.Log; import android.view.Gravity; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.MotionEvent; import android.view.View; import android.widget.EditText; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ProgressBar; import android.widget.Toast; import com.bumptech.glide.load.resource.bitmap.GlideBitmapDrawable; import com.firebase.ui.database.FirebaseRecyclerAdapter; import com.google.android.gms.auth.api.Auth; import com.google.android.gms.common.ConnectionResult; import com.google.android.gms.common.api.GoogleApiClient; import com.google.android.gms.tasks.OnFailureListener; import com.google.android.gms.tasks.OnSuccessListener; import com.google.firebase.auth.FirebaseAuth; import com.google.firebase.auth.FirebaseUser; import com.google.firebase.storage.FirebaseStorage; import com.google.firebase.storage.StorageReference; import com.google.firebase.storage.UploadTask; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.RandomAccessFile; import java.lang.reflect.Field; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; import edu.sfsu.csc780.chathub.R; import edu.sfsu.csc780.chathub.model.ChatMessage; import vc908.stickerfactory.StickersKeyboardController; import vc908.stickerfactory.StickersManager; import vc908.stickerfactory.ui.OnStickerSelectedListener; import vc908.stickerfactory.ui.fragment.StickersFragment; import vc908.stickerfactory.ui.view.BadgedStickersButton; import vc908.stickerfactory.ui.view.StickersKeyboardLayout; import vc908.stickerfactory.utils.CompatUtils; public class ChannelActivity extends AppCompatActivity implements GoogleApiClient.OnConnectionFailedListener, MessageUtil.MessageLoadListener { private static final String TAG = "ChannelActivity"; private static final int REQUEST_TAKE_PHOTO = 3; public static final int REQUEST_PREFERENCES = 2; public static final int REQUEST_WRITE_EXTERNAL_STORAGE = 5; public static final int MSG_LENGTH_LIMIT = 64; private static final double MAX_LINEAR_DIMENSION = 500.0; public static final String ANONYMOUS = "anonymous"; private static final int REQUEST_PICK_IMAGE = 1; private static final int REQUEST_RECORD_AUDIO = 4; private String mUsername; private String mPhotoUrl; private SharedPreferences mSharedPreferences; private GoogleApiClient mGoogleApiClient; private static String RECORD_AUDIO = Manifest.permission.RECORD_AUDIO; private static String WRITE_EXTERNAL_STORAGE = Manifest.permission.WRITE_EXTERNAL_STORAGE; private static int GRANTED = PackageManager.PERMISSION_GRANTED; private static final String[] AUDIO_PERMISSIONS = { RECORD_AUDIO, WRITE_EXTERNAL_STORAGE }; private ImageButton mSendButton; private RecyclerView mMessageRecyclerView; private LinearLayoutManager mLinearLayoutManager; private ProgressBar mProgressBar; private EditText mMessageEditText; // Firebase instance variables private FirebaseAuth mAuth; private FirebaseUser mUser; private FirebaseRecyclerAdapter<ChatMessage, MessageUtil.MessageViewHolder> mFirebaseAdapter; private ImageButton mImageButton; private ImageButton mPhotoButton; private ImageButton mAudioButton; private ImageButton mAddButton; private ImageButton mDrawButton; private BadgedStickersButton mStickerButton; private int mSavedTheme; private ImageButton mLocationButton; private StickersKeyboardController stickersKeyboardController; private View.OnClickListener mImageClickListener = new View.OnClickListener() { @Override public void onClick(View v) { ImageView photoView = (ImageView) v.findViewById(R.id.messageImageView); // Only show the larger view in dialog if there's a image for the message if (photoView.getVisibility() == View.VISIBLE) { Bitmap bitmap = ((GlideBitmapDrawable) photoView.getDrawable()).getBitmap(); showPhotoDialog(ImageDialogFragment.newInstance(bitmap)); } } }; private MediaRecorder mRecorder; private String mFileName = null; private StorageReference mStorage; private ProgressDialog mProgress; private MediaPlayer mSound; private static final String LOG_TAG = "Record_Log"; public static String mChannelName; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); DesignUtils.applyColorfulTheme(this); setContentView(R.layout.activity_channel); StickersManager.initialize("fde0f6b3b7a6c68c2832296a82095c5d", this); StickersManager.setUserID("some unique user id"); mChannelName = getIntent().getExtras().get("mChannelName").toString(); setTitle(mChannelName); mSharedPreferences = PreferenceManager.getDefaultSharedPreferences(this); // Set default username is anonymous. mUsername = ANONYMOUS; //Initialize Auth mAuth = FirebaseAuth.getInstance(); mUser = mAuth.getCurrentUser(); if (mUser == null) { startActivity(new Intent(this, SignInActivity.class)); finish(); return; } else { mUsername = mUser.getDisplayName(); if (mUser.getPhotoUrl() != null) { mPhotoUrl = mUser.getPhotoUrl().toString(); } } mGoogleApiClient = new GoogleApiClient.Builder(this) .enableAutoManage(this /* FragmentActivity */, this /* OnConnectionFailedListener */) .addApi(Auth.GOOGLE_SIGN_IN_API).build(); // Initialize ProgressBar and RecyclerView. mProgressBar = (ProgressBar) findViewById(R.id.progressBar); mMessageRecyclerView = (RecyclerView) findViewById(R.id.messageRecyclerView); mLinearLayoutManager = new LinearLayoutManager(this); mLinearLayoutManager.setStackFromEnd(true); mMessageRecyclerView.setLayoutManager(mLinearLayoutManager); mFirebaseAdapter = MessageUtil.getFirebaseAdapter(this, this, /* MessageLoadListener */ mLinearLayoutManager, mMessageRecyclerView, mImageClickListener); mMessageRecyclerView.setAdapter(mFirebaseAdapter); mProgressBar.setVisibility(ProgressBar.INVISIBLE); mMessageEditText = (EditText) findViewById(R.id.messageEditText); mMessageEditText.setFilters(new InputFilter[] { new InputFilter.LengthFilter(MSG_LENGTH_LIMIT) }); mMessageEditText.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) { } @Override public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) { if (charSequence.toString().trim().length() > 0) { mSendButton.setEnabled(true); } else { mSendButton.setEnabled(false); } } @Override public void afterTextChanged(Editable editable) { } }); mSendButton = (ImageButton) findViewById(R.id.sendButton); mSendButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { // Send messages on click. mMessageRecyclerView.scrollToPosition(0); ChatMessage chatMessage = new ChatMessage(mMessageEditText.getText().toString(), mUsername, mPhotoUrl); MessageUtil.send(chatMessage, mChannelName); mMessageEditText.setText(""); } }); mAddButton = (ImageButton) findViewById(R.id.addButton); mAddButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { openBottomSheet(); } }); if (ActivityCompat.checkSelfPermission(ChannelActivity.this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(ChannelActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) { Log.d(LOG_TAG, "requesting permissions for starting"); ActivityCompat.requestPermissions(ChannelActivity.this, AUDIO_PERMISSIONS, REQUEST_RECORD_AUDIO); return; } } public void openBottomSheet() { View view = getLayoutInflater().inflate(R.layout.bottom_sheet_modal, null); final Dialog mBottomSheetDialog = new Dialog(ChannelActivity.this, R.style.MaterialDialogSheet); mBottomSheetDialog.setContentView(view); mBottomSheetDialog.setCancelable(true); mBottomSheetDialog.getWindow().setLayout(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT); mBottomSheetDialog.getWindow().setGravity(Gravity.BOTTOM); mBottomSheetDialog.show(); mImageButton = (ImageButton) mBottomSheetDialog.findViewById(R.id.shareImageButton); mImageButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { pickImage(); mBottomSheetDialog.hide(); } }); mPhotoButton = (ImageButton) mBottomSheetDialog.findViewById(R.id.cameraButton); mPhotoButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { dispatchTakePhotoIntent(); mBottomSheetDialog.hide(); } }); mLocationButton = (ImageButton) mBottomSheetDialog.findViewById(R.id.locationButton); mLocationButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { loadMap(); mBottomSheetDialog.hide(); } }); mProgress = new ProgressDialog(this); mStorage = FirebaseStorage.getInstance().getReference(); mAudioButton = (ImageButton) mBottomSheetDialog.findViewById(R.id.voiceButton); mAudioButton.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent motionEvent) { if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) { startRecording(); Context context = getApplicationContext(); CharSequence text = "Recording Started!"; int duration = Toast.LENGTH_SHORT; Toast toast = Toast.makeText(context, text, duration); toast.show(); } else if (motionEvent.getAction() == MotionEvent.ACTION_UP) { stopRecording(); mBottomSheetDialog.hide(); Context context = getApplicationContext(); CharSequence text = "Recording Stopped!"; int duration = Toast.LENGTH_SHORT; Toast toast = Toast.makeText(context, text, duration); toast.show(); } return false; } }); mFileName = Environment.getExternalStorageDirectory().getAbsolutePath(); mFileName += "/recorded_audio.3gp"; mStickerButton = (BadgedStickersButton) mBottomSheetDialog.findViewById(R.id.stickerButton); StickersFragment stickersFragment = (StickersFragment) getSupportFragmentManager() .findFragmentById(R.id.frame); if (stickersFragment == null) { stickersFragment = new StickersFragment(); getSupportFragmentManager().beginTransaction().replace(R.id.frame, stickersFragment).commit(); } stickersFragment.setOnStickerSelectedListener(stickerSelectedListener); View stickersFrame = findViewById(R.id.frame); View chatContentGroup = findViewById(R.id.chat_content); StickersKeyboardLayout stickersLayout = (StickersKeyboardLayout) findViewById(R.id.sizeNotifierLayout); stickersKeyboardController = new StickersKeyboardController.Builder(this) .setStickersKeyboardLayout(stickersLayout).setStickersFragment(stickersFragment) .setStickersFrame(stickersFrame).setContentContainer(chatContentGroup) .setStickersButton(mStickerButton).setChatEdit(mMessageEditText).build(); mDrawButton = (ImageButton) mBottomSheetDialog.findViewById(R.id.drawButton); mDrawButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { startActivity(new Intent(ChannelActivity.this, DrawingActivity.class)); mBottomSheetDialog.hide(); } }); } private void startRecording() { mRecorder = new MediaRecorder(); mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); mRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); mRecorder.setOutputFile(mFileName); mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); try { mRecorder.prepare(); } catch (IOException e) { Log.e(LOG_TAG, "prepare() failed"); } mRecorder.start(); } private void stopRecording() { int shortRecording = 0; try { mRecorder.stop(); mRecorder.release(); mRecorder = null; } catch (Exception exception) { shortRecording = 1; } if (shortRecording == 0) { Uri uri = saveAudio(mFileName); createAudioMessage(uri); } shortRecording = 0; } private Uri saveAudio(String mFileName) { File returnAudioFile = null; try { returnAudioFile = createAudioFile(); } catch (IOException e) { e.printStackTrace(); } if (returnAudioFile == null) { Log.d(TAG, "Error creating media file"); return null; } try { RandomAccessFile f = new RandomAccessFile(mFileName, "r"); byte[] b = new byte[(int) f.length()]; f.readFully(b); FileOutputStream fos = new FileOutputStream(returnAudioFile); fos.write(b); fos.close(); } catch (FileNotFoundException e) { Log.d(TAG, "File not found: " + e.getMessage()); } catch (IOException e) { Log.d(TAG, "Error accessing file: " + e.getMessage()); } return Uri.fromFile(returnAudioFile); } private File createAudioFile() throws IOException { // Create an audio file name String timeStamp = new SimpleDateFormat("yyyyMMdd-HHmmss").format(new Date()); String audioFileNamePrefix = "audio-" + timeStamp; File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES); File audioFile = File.createTempFile(audioFileNamePrefix, /* prefix */ ".3gp", /* suffix */ storageDir /* directory */ ); return audioFile; } private void createAudioMessage(Uri uri) { if (uri == null) { Log.e(TAG, "Could not create audio message with null uri"); return; } final StorageReference audioReference = MessageUtil.getAudioStorageReference(mUser, uri); UploadTask uploadTask = audioReference.putFile(uri); // Register observers to listen for when task is done or if it fails uploadTask.addOnFailureListener(new OnFailureListener() { @Override public void onFailure(@NonNull Exception exception) { Log.e(TAG, "Failed to upload audio message"); } }).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() { @Override public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) { ChatMessage chatMessage = new ChatMessage(mMessageEditText.getText().toString(), mUsername, mPhotoUrl, audioReference.toString(), 1); MessageUtil.send(chatMessage, mChannelName); mMessageEditText.setText(""); } }); } private void dispatchTakePhotoIntent() { Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); // Ensure the implicit intent can be handled if (takePictureIntent.resolveActivity(getPackageManager()) != null) { startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO); } } @Override public void onStart() { super.onStart(); // Check if user is signed in. // TODO: Add code to check if user is signed in. } @Override public void onPause() { super.onPause(); } @Override public void onResume() { super.onResume(); LocationUtils.startLocationUpdates(this); } @Override public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) { boolean isGranted = (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED); if (isGranted && requestCode == LocationUtils.REQUEST_CODE) { LocationUtils.startLocationUpdates(this); } super.onRequestPermissionsResult(requestCode, permissions, grantResults); } @Override public void onDestroy() { super.onDestroy(); } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.main_menu, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.sign_out_menu: mAuth.signOut(); Auth.GoogleSignInApi.signOut(mGoogleApiClient); mUsername = ANONYMOUS; startActivity(new Intent(this, SignInActivity.class)); return true; case R.id.preferences_menu: mSavedTheme = DesignUtils.getPreferredTheme(this); Intent i = new Intent(this, PreferencesActivity.class); startActivityForResult(i, REQUEST_PREFERENCES); default: return super.onOptionsItemSelected(item); } } @Override public void onConnectionFailed(@NonNull ConnectionResult connectionResult) { // An unresolvable error has occurred and Google APIs (including Sign-In) will not // be available. Log.d(TAG, "onConnectionFailed:" + connectionResult); Toast.makeText(this, "Google Play Services error.", Toast.LENGTH_SHORT).show(); } @Override public void onLoadComplete() { mProgressBar.setVisibility(ProgressBar.INVISIBLE); } private void pickImage() { // ACTION_OPEN_DOCUMENT is the intent to choose a file via the system's file browser Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT); // Filter to only show results that can be "opened" intent.addCategory(Intent.CATEGORY_OPENABLE); // Filter to show only images, using the image MIME data type. intent.setType("image/*"); startActivityForResult(intent, REQUEST_PICK_IMAGE); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); Log.d(TAG, "onActivityResult: request=" + requestCode + ", result=" + resultCode); if (requestCode == REQUEST_PICK_IMAGE && resultCode == Activity.RESULT_OK) { // Process selected image here // The document selected by the user won't be returned in the intent. // Instead, a URI to that document will be contained in the return intent // provided to this method as a parameter. // Pull that URI using resultData.getData(). if (data != null) { Uri uri = data.getData(); Log.i(TAG, "Uri: " + uri.toString()); // Resize if too big for messaging Bitmap bitmap = getBitmapForUri(uri); Bitmap resizedBitmap = scaleImage(bitmap); if (bitmap != resizedBitmap) { uri = savePhotoImage(resizedBitmap); } createImageMessage(uri); } else { Log.e(TAG, "Cannot get image for uploading"); } } else if (requestCode == REQUEST_TAKE_PHOTO && resultCode == RESULT_OK) { if (data != null && data.getExtras() != null) { Bundle extras = data.getExtras(); Bitmap imageBitmap = (Bitmap) extras.get("data"); Log.d(TAG, "imageBitmap size:" + imageBitmap.getByteCount()); createImageMessage(savePhotoImage(imageBitmap)); } else { Log.e(TAG, "Cannot get photo URI after taking photo"); } } else if (requestCode == REQUEST_PREFERENCES) { if (DesignUtils.getPreferredTheme(this) != mSavedTheme) { DesignUtils.applyColorfulTheme(this); this.recreate(); } } } private void createImageMessage(Uri uri) { if (uri == null) { Log.e(TAG, "Could not create image message with null uri"); return; } final StorageReference imageReference = MessageUtil.getImageStorageReference(mUser, uri); UploadTask uploadTask = imageReference.putFile(uri); // Register observers to listen for when task is done or if it fails uploadTask.addOnFailureListener(new OnFailureListener() { @Override public void onFailure(@NonNull Exception exception) { Log.e(TAG, "Failed to upload image message"); } }).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() { @Override public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) { ChatMessage chatMessage = new ChatMessage(mMessageEditText.getText().toString(), mUsername, mPhotoUrl, imageReference.toString()); MessageUtil.send(chatMessage, mChannelName); mMessageEditText.setText(""); } }); } private Bitmap getBitmapForUri(Uri imageUri) { Bitmap bitmap = null; try { bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), imageUri); } catch (IOException e) { e.printStackTrace(); } return bitmap; } private Bitmap scaleImage(Bitmap bitmap) { int originalHeight = bitmap.getHeight(); int originalWidth = bitmap.getWidth(); double scaleFactor = MAX_LINEAR_DIMENSION / (double) (originalHeight + originalWidth); // We only want to scale down images, not scale upwards if (scaleFactor < 1.0) { int targetWidth = (int) Math.round(originalWidth * scaleFactor); int targetHeight = (int) Math.round(originalHeight * scaleFactor); return Bitmap.createScaledBitmap(bitmap, targetWidth, targetHeight, true); } else { return bitmap; } } private Uri savePhotoImage(Bitmap imageBitmap) { File photoFile = null; try { photoFile = createImageFile(); } catch (IOException e) { e.printStackTrace(); } if (photoFile == null) { Log.d(TAG, "Error creating media file"); return null; } try { FileOutputStream fos = new FileOutputStream(photoFile); imageBitmap.compress(Bitmap.CompressFormat.PNG, 90, fos); fos.close(); } catch (FileNotFoundException e) { Log.d(TAG, "File not found: " + e.getMessage()); } catch (IOException e) { Log.d(TAG, "Error accessing file: " + e.getMessage()); } return Uri.fromFile(photoFile); } private File createImageFile() throws IOException { // Create an image file name String timeStamp = new SimpleDateFormat("yyyyMMdd-HHmmss").format(new Date()); String imageFileNamePrefix = "chathub-" + timeStamp; File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES); File imageFile = File.createTempFile(imageFileNamePrefix, /* prefix */ ".jpg", /* suffix */ storageDir /* directory */ ); return imageFile; } private void loadMap() { Loader<Bitmap> loader = getSupportLoaderManager().initLoader(0, null, new LoaderManager.LoaderCallbacks<Bitmap>() { @Override public Loader<Bitmap> onCreateLoader(final int id, final Bundle args) { return new MapLoader(ChannelActivity.this); } @Override public void onLoadFinished(final Loader<Bitmap> loader, final Bitmap result) { mProgressBar.setVisibility(ProgressBar.INVISIBLE); mLocationButton.setEnabled(true); if (result == null) return; // Resize if too big for messaging Bitmap resizedBitmap = scaleImage(result); Uri uri = null; if (result != resizedBitmap) { uri = savePhotoImage(resizedBitmap); } else { uri = savePhotoImage(result); } createImageMessage(uri); } @Override public void onLoaderReset(final Loader<Bitmap> loader) { } }); mProgressBar.setVisibility(ProgressBar.VISIBLE); mLocationButton.setEnabled(false); loader.forceLoad(); } void showPhotoDialog(DialogFragment dialogFragment) { // DialogFragment.show() will take care of adding the fragment // in a transaction. We also want to remove any currently showing // dialog, so make our own transaction and take care of that here. FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); android.support.v4.app.Fragment prev = getSupportFragmentManager().findFragmentByTag("dialog"); if (prev != null) { ft.remove(prev); } ft.addToBackStack(null); dialogFragment.show(ft, "dialog"); } private OnStickerSelectedListener stickerSelectedListener = new OnStickerSelectedListener() { @Override public void onStickerSelected(String stickerCode) { sendSticker(stickerCode); } @Override public void onEmojiSelected(String emoji) { mMessageEditText.append(emoji); } }; public void loadSticker(ImageView view, String message) { StickersManager.with(ChannelActivity.this).loadSticker(message).into((view)); } private void sendSticker(String stickerCode) { if (StickersManager.isSticker(stickerCode)) { ChatMessage chatMessage = new ChatMessage(mMessageEditText.getText().toString(), mUsername, mPhotoUrl, null, stickerCode); MessageUtil.send(chatMessage, mChannelName); StickersManager.onUserMessageSent(true); } } }