我正在制作一个Android应用程序，我在其中使用无服务器FCM推送通知。因此，必须发送两种类型的通知，第一种是从客户到客户当前位置1-2公里范围内的所有注册店主的广播通知，第二种是店主对该特定的回复仅限客户。我坚持使用此代码，无法解决问题。我的nodes.js和android代码如下所述。
//import firebase functions modules
const functions = require('firebase-functions');
//import admin module
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
// Listens for new messages added to messages/:pushId
exports.pushNotification = functions.database.ref('/messages/{pushId}').onWrite( event => {
console.log('Push notification event triggered');
// Grab the current value of what was written to the Realtime Database.
var valueObject = event.data.val();
if(valueObject.photoUrl != null) {
valueObject.photoUrl= "Sent you a photo!";
}
console.log('Push notification 1');
// Create a notification
const payload = {
notification: {
title:valueObject.name,
body: valueObject.text || valueObject.photoUrl,
sound: "default"
},
};
console.log('Push notification 2');
//Create an options object that contains the time to live for the notification and the priority
const options = {
priority: "high",
timeToLive: 60 * 60 * 24
};
console.log('Push notification 3');
return admin.messaging().sendToTopic("pushNotifications", payload, options);
});
public class CloudMain extends BaseActivty {
public static final String ANONYMOUS = "anonymous";
public static final int DEFAULT_MSG_LENGTH_LIMIT = 10;
public static final int RC_SIGN_IN = 1;
private static final int RC_PHOTO_PICKER = 2;
private ListView mMessageListView;
private MessageAdapter mMessageAdapter;
private ProgressBar mProgressBar;
private ImageButton mPhotoPickerButton;
private EditText mMessageEditText;
private Button mSendButton;
private String mUsername;
private FirebaseDatabase mDatabase;
private DatabaseReference mMessagesReference;
private ChildEventListener mChildEventListener;
private FirebaseAuth mFirebaseAuth;
private FirebaseAuth.AuthStateListener mAuthStateListener;
private FirebaseStorage mStorage;
private StorageReference mChatPhotosStorageRef;
private FirebaseUser user;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_cloud_main);
Intent intent = getIntent();
mDatabase = FirebaseDatabase.getInstance();
mFirebaseAuth = FirebaseAuth.getInstance();
mStorage = FirebaseStorage.getInstance();
FirebaseUser user = mFirebaseAuth.getCurrentUser();
String userId = user.getUid();
mUsername = user.getDisplayName() ; //ANONYMOUS;
mMessagesReference = mDatabase.getReference().child("users").child(userId).child("messages");
mChatPhotosStorageRef = mStorage.getReference().child("users").child(userId).child("chat_photos");
FirebaseMessaging.getInstance().subscribeToTopic("pushNotifications");
// Initialize references to views
mProgressBar = (ProgressBar) findViewById(R.id.progressBar);
mMessageListView = (ListView) findViewById(R.id.messageListView);
mPhotoPickerButton = (ImageButton) findViewById(R.id.photoPickerButton);
mMessageEditText = (EditText) findViewById(R.id.messageEditText);
mSendButton = (Button) findViewById(R.id.sendButton);
// Initialize message ListView and its adapter
List<Message> messages = new ArrayList<>();
mMessageAdapter = new MessageAdapter(this, R.layout.item_message, messages);
mMessageListView.setAdapter(mMessageAdapter);
// Initialize progress bar
mProgressBar.setVisibility(ProgressBar.INVISIBLE);
// ImagePickerButton shows an image picker to upload a image for a message
mPhotoPickerButton.setOnClickListener(new View.OnClickListener() {
// TODO: Fire an intent to show an image picker
@Override
public void onClick(View view) {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("image/jpeg");
intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
startActivityForResult(Intent.createChooser(intent, "Complete action using"), RC_PHOTO_PICKER);
}
});
// Enable Send button when there's text to send
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) {
}
});
mMessageEditText.setFilters(new InputFilter[]{new InputFilter.LengthFilter(DEFAULT_MSG_LENGTH_LIMIT)});
// Send button sends a message and clears the EditText
mSendButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// TODO: Send messages on click
Message message = new Message(mMessageEditText.getText().toString(), mUsername, null);
mMessagesReference.push().setValue(message);
mMessageEditText.setText("");
}
});
mAuthStateListener = new FirebaseAuth.AuthStateListener() {
@Override
public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
FirebaseUser user = firebaseAuth.getCurrentUser();
String userId = user.getUid();
Log.d("onAuthStateChanged: ",userId);
if (user != null) {
} else {
}
}
};
}
@Override
protected void onPause() {
super.onPause();
mFirebaseAuth.removeAuthStateListener(mAuthStateListener);
detachDatabaseReadListener();
mMessageAdapter.clear();
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RC_SIGN_IN) {
if (resultCode == RESULT_OK) {
Toast.makeText(this, "Signed in.", Toast.LENGTH_SHORT).show();
} else if (resultCode == RESULT_CANCELED) {
Toast.makeText(this, "Sign in canceled.", Toast.LENGTH_SHORT).show();
finish();
}
} else if (requestCode == RC_PHOTO_PICKER && resultCode == RESULT_OK) {
Uri selectedImageUri = data.getData();
StorageReference photoRef =
mChatPhotosStorageRef.child(selectedImageUri.getLastPathSegment());
photoRef.putFile(selectedImageUri)
.addOnSuccessListener(this, new OnSuccessListener<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
Uri downloadUrl = taskSnapshot.getDownloadUrl();
Message message = new Message(null, mUsername, downloadUrl.toString());
mMessagesReference.push().setValue(message);
}
});
}
}
@Override
protected void onResume() {
super.onResume();
mFirebaseAuth.addAuthStateListener(mAuthStateListener);
}
private void attachDatabaseReadListener() {
if (mChildEventListener == null) {
mChildEventListener = new ChildEventListener() {
@Override
public void onChildAdded(DataSnapshot dataSnapshot, String s) {
Message message = dataSnapshot.getValue(Message.class);
mMessageAdapter.add(message);
}
@Override
public void onChildChanged(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onChildRemoved(DataSnapshot dataSnapshot) {
}
@Override
public void onChildMoved(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
};
mMessagesReference.addChildEventListener(mChildEventListener);
}
}
private void detachDatabaseReadListener() {
if (mChildEventListener != null) {
mMessagesReference.removeEventListener(mChildEventListener);
mChildEventListener = null;
}
}
}
答案 0 :(得分：0)
服务器出现500错误吗？你最好把json身体串起来，
myArray