private void PostAdapter_ItemLongClick(object sender, PostAdapterClickEventArgs e)
{
string postID = ListOfPost[e.Position].ID;
string ownerID = ListOfPost[e.Position].OwnerId;
if (AppDataHelper.GetFirebaseAuth().CurrentUser.Uid == ownerID)
{
Android.Support.V7.App.AlertDialog.Builder alert = new Android.Support.V7.App.AlertDialog.Builder(this);
alert.SetTitle("Edit or Delete Post");
alert.SetMessage("Are you sure");
alert.SetNegativeButton("Edit Post", (o, args) =>
{
EditPostFragment editPostFragment = new EditPostFragment(ListOfPost[e.Position]);
var trans = SupportFragmentManager.BeginTransaction();
editPostFragment.Show(trans, "edit");
});
alert.SetPositiveButton("Delete", (o, args) =>
{
AppDataHelper.GetFirestore().Collection("posts").Document(postID).Delete();
StorageReference storageReference = FirebaseStorage.Instance.GetReference("postImages/" + postID);
storageReference.Delete();
});
alert.Show();
}
}
private void EditButton_Click(object sender, EventArgs e)
{
DocumentReference reference = AppDataHelper.GetFirestore().Collection("posts").Document(thisPost.ID);
reference.Update("post_body", postEditText.Text);
this.Dismiss();
}
public void FetchUser()
{
//This will retrieve a document snapshot that is going to contain information about this particular user
AppDataHelper.GetFirestore().Collection("users").Document(AppDataHelper.GetFirebaseAuth()
.CurrentUser.Uid).Get()
.AddOnSuccessListener(this);
}
public void FetchPost()
{
//Retrieve only once
// AppDataHelper.GetFirestore().Collection("posts").Get()
// .AddOnSuccessListener(this);
AppDataHelper.GetFirestore().Collection("posts").AddSnapshotListener(this);
}
private void SubmitButton_Click(object sender, EventArgs e)
{
HashMap postMap = new HashMap();
postMap.Put("author", AppDataHelper.GetFullName());
postMap.Put("owner_id", AppDataHelper.GetFirebaseAuth().CurrentUser.Uid);
postMap.Put("post_date", DateTime.Now.ToString());
postMap.Put("post_body", postEditText.Text);
DocumentReference newPostRef = AppDataHelper.GetFirestore().Collection("posts").Document();
string postKey = newPostRef.Id;
postMap.Put("image_id", postKey);
ShowProgressDialogue("Saving Information ...");
// Save Post Image to Firebase Storaage
StorageReference storageReference = null;
if (fileBytes != null)
{
storageReference = FirebaseStorage.Instance.GetReference("postImages/" + postKey);
storageReference.PutBytes(fileBytes)
.AddOnSuccessListener(taskCompletionListeners)
.AddOnFailureListener(taskCompletionListeners);
}
// Image Upload Success Callback
taskCompletionListeners.Sucess += (obj, args) =>
{
if (storageReference != null)
{
storageReference.DownloadUrl.AddOnSuccessListener(downloadUrlListener);
}
};
// Image Download URL Callback
downloadUrlListener.Sucess += (obj, args) =>
{
string downloadUrl = args.Result.ToString();
postMap.Put("download_url", downloadUrl);
// Save post to Firebase Firestore
newPostRef.Set(postMap);
CloseProgressDialogue();
Finish();
};
// Image Upload Failure Callback
taskCompletionListeners.Failure += (obj, args) =>
{
Toast.MakeText(this, "Upload was not completed", ToastLength.Short).Show();
};
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.register);
fullnameText = (TextInputLayout)FindViewById(Resource.Id.fullNameRegText);
emailText = (TextInputLayout)FindViewById(Resource.Id.emailRegText);
passwordText = (TextInputLayout)FindViewById(Resource.Id.passwordRegText);
confirmPasswordText = (TextInputLayout)FindViewById(Resource.Id.confirmPasswordRegText);
clickHereToLogin = (TextView)FindViewById(Resource.Id.clickToLogin);
clickHereToLogin.Click += ClickHereToLogin_Click;
registerButton = (Button)FindViewById(Resource.Id.registerButton);
registerButton.Click += RegisterButton_Click;
database = AppDataHelper.GetFirestore();
mAuth = AppDataHelper.GetFirebaseAuth();
}
public void OnSuccess(Java.Lang.Object result)
{
DocumentSnapshot snapshot = (DocumentSnapshot)result;
if (!snapshot.Exists())
{
return;
}
DocumentReference likeReference = AppDataHelper.GetFirestore().Collection("posts").Document(postID);
if (like)
{
likeReference.Update("likes." + AppDataHelper.GetFirebaseAuth().CurrentUser.Uid, true);
}
else
{
//check for null
if (snapshot.Get("likes") == null)
{
return;
}
var data = snapshot.Get("likes") != null?snapshot.Get("likes") : null;
if (data != null)
{
var dictionaryFromHashMap = new Android.Runtime.JavaDictionary <string, string>(data.Handle, JniHandleOwnership.DoNotRegister);
//retrieve our own id
string uid = AppDataHelper.GetFirebaseAuth().CurrentUser.Uid;
//check if our user ID is contained inside the dictionary
if (dictionaryFromHashMap.Contains(uid))
{
//remove our user ID to unlike the post
dictionaryFromHashMap.Remove(uid);
//update the hashmap withour our userid included
likeReference.Update("likes", dictionaryFromHashMap);
}
}
}
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.register);
fullnameText = (TextInputLayout)FindViewById(Resource.Id.fullNameRegText);
emailText = (TextInputLayout)FindViewById(Resource.Id.emailRegText);
passwordText = (TextInputLayout)FindViewById(Resource.Id.passwordRegText);
confirmPasswordText = (TextInputLayout)FindViewById(Resource.Id.confirmPasswordRegText);
clickHereToLogin = (TextView)FindViewById(Resource.Id.clickToLogin);
clickHereToLogin.Click += ClickHereToLogin_Click;
registerButton = (Button)FindViewById(Resource.Id.registerButton);
registerButton.Click += RegisterButton_Click;
//whenver we call the GetFirestore() method, it will return an instance of our firebase firestore.
database = AppDataHelper.GetFirestore();
//Instantiate firebase authentication
mAuth = AppDataHelper.GetFirebaseAuth();
}
public void OnSuccess(Java.Lang.Object result)
{
DocumentSnapshot snapshot = (DocumentSnapshot)result;
if (!snapshot.Exists())
{
return;
}
DocumentReference likesReference = AppDataHelper.GetFirestore().Collection("posts").Document(postID);
if (Like)
{
likesReference.Update("likes." + AppDataHelper.GetFirebaseAuth().CurrentUser.Uid, true);
}
else
{
if (snapshot.Get("likes") == null)
{
return;
}
var data = snapshot.Get("likes") != null?snapshot.Get("likes") : null;
if (data != null)
{
var dictionaryFromHashMap = new Android.Runtime.JavaDictionary <string, string>(data.Handle, JniHandleOwnership.DoNotRegister);
string uid = AppDataHelper.GetFirebaseAuth().CurrentUser.Uid;
if (dictionaryFromHashMap.Contains(uid))
{
dictionaryFromHashMap.Remove(uid);
likesReference.Update("likes", dictionaryFromHashMap);
}
}
}
}
public void RemoveListener()
{
var listener = AppDataHelper.GetFirestore().Collection("posts").AddSnapshotListener(this);
listener.Remove();
}
public void UnlikePost()
{
like = false;
AppDataHelper.GetFirestore().Collection("posts").Document(postID).Get()
.AddOnSuccessListener(this);
}
private void SubmitButton_Click(object sender, EventArgs e)
{
HashMap postMap = new HashMap();
postMap.Put("author", AppDataHelper.GetFullname());
postMap.Put("owner_id", AppDataHelper.GetFirebaseAuth().CurrentUser.Uid);
postMap.Put("post_date", DateTime.Now.ToString("dd/MM/yyyy HH:mm:ss tt"));
postMap.Put("post_body", postEditText.Text);
//this will return an instance of our firestore
//this will also generate an id
DocumentReference newPostRef = AppDataHelper.GetFirestore().Collection("posts").Document();
//retrieve the document ID created
string postKey = newPostRef.Id;
postMap.Put("image_id", postKey);
ShowProgressDialogue("Posting..");
// Save post image to firebase storage
StorageReference storageReference = null;
//check if the filebytes is not null
if (fileBytes != null)
{
//This is the location where our images will be uploaded in the Firebase Storage
//"postImages/" + "photo" is the location + imagename
storageReference = FirebaseStorage.Instance.GetReference("postImages/" + postKey);
//this code will save our image file to firebase storage
storageReference.PutBytes(fileBytes)
.AddOnSuccessListener(taskCompletionListeners)
.AddOnFailureListener(taskCompletionListeners);
}
taskCompletionListeners.Success += (obj, EventArgs args) =>
{
//check if storageReference is null
if (storageReference != null)
{
storageReference.DownloadUrl.AddOnSuccessListener(downloadUrlListener);
}
//to get hold of the URL
downloadUrlListener.Success += (obj, args) =>
{
string downloadUrl = args.Result.ToString();
postMap.Put("download_url", downloadUrl);
//Save post to Firebase Firestore
newPostRef.Set(postMap);
CloseProgressDialogue();
Finish();
};
};
taskCompletionListeners.Failure += (obj, args) =>
{
Toast.MakeText(this, "Upload failed!", ToastLength.Short).Show();
CloseProgressDialogue();
};
}
public void FetchUser()
{
AppDataHelper.GetFirestore().Collection("users").Document(AppDataHelper.GetFirebaseAuth().CurrentUser.Uid).Get()
.AddOnSuccessListener(this);
}
