Firebase modifying uid in every view

Firebase modifying uid in every view

By : user7454807
Date : November 19 2020, 03:01 PM
I hope this helps . At firebase every authenticated user have only one "unique" uID as you know. So when you logged in as a user, you should allways get the same uID when you query it. It is hard to say this from here because you provided little part of this code. You should provide more to get an answer.
EDIT: It looks like you are calling createuser everytime your activity starts. That means you are creating another user every time you run the code. And the
code :

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Modifying TouchList View to drag from List onto Another view (An Image view)

Modifying TouchList View to drag from List onto Another view (An Image view)

By : azad
Date : March 29 2020, 07:55 AM
around this issue I am trying to modify the TouchListView component to allow me to drag an item from a list view over another view, to create a drag and drop selection system. The user will drag a list item and release it to indicate the selection. , Here is the solution that i came up with that worked.
code :
package com.commonsware.cwac.tlv.demo;

import java.util.ArrayList;
import java.util.Arrays;

import android.app.ListActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.commonsware.cwac.tlv.TouchListView;

public class TouchListViewDemo extends ListActivity {
    private static String[] items={"lorem", "ipsum", "dolor", "sit", "amet",
                                                                    "consectetuer", "adipiscing", "elit", "morbi", "vel",
                                                                    "ligula", "vitae", "arcu", "aliquet", "mollis",
                                                                    "etiam", "vel", "erat", "placerat", "ante",
                                                                    "porttitor", "sodales", "pellentesque", "augue", "purus"};
    private TouchListView tlv;
    private IconicAdapter adapter=null;
    private ArrayList<String> array=new ArrayList<String>(Arrays.asList(items));

    private TextView target_name_display;
    private ImageView target;

    public void onCreate(Bundle icicle) {

        tlv = (TouchListView)getListView();
        adapter=new IconicAdapter();


        target = (ImageView) findViewById(R.id.drag_target_area);
        target_name_display = (TextView) findViewById(R.id.name_text);
        Log.d("TARGET", "Target:"+target);
        Log.d("TARGET", "TargeName Displayt:"+target_name_display);

        ViewTreeObserver vto = target.getViewTreeObserver();
        vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {

            public void onGlobalLayout() {
                int height = target.getHeight();
                int top = target.getTop();
                int tlv_y_position = tlv.getTop();
                Log.d("ON LAYOUT", "Height:"+ height+ " top:"+top+" tlv_y_position:"+tlv_y_position);               


    private TouchListView.DropListener onDrop=new TouchListView.DropListener() {
        public void drop(int from, int to, MotionEvent e) {
            Log.i("TOUCH VIEW DEMO", "From: "+from + "  TO: "+to );
            Log.i("TOUCH VIEW DEMO", "Event: "+e.getY());
                String item=adapter.getItem(from);

                int[] target_coords = new int[2]; 
                int[] tlv_coords = new int[2]; 
                int height = target.getMeasuredHeight();
                int negative_top = -1*(tlv_coords[1]-target_coords[1]);
                Log.d("TOUCH VIEW DEMO", " negative_top:"+negative_top + " e.getY():"+e.getY() + " heigh:"+height);
                Log.d("TOUCH VIEW DEMO", "Target Coords:"+ target_coords[0] +","+ target_coords[1]);
                Log.d("TOUCH VIEW DEMO", "Tlv Coords:"+ tlv_coords[0] +","+ tlv_coords[1]);
                if(e.getY() > negative_top && e.getY() < negative_top + height){
                //adapter.insert(item, to);

    private TouchListView.RemoveListener onRemove=new TouchListView.RemoveListener() {
        public void remove(int which) {

    class IconicAdapter extends ArrayAdapter<String> {
        IconicAdapter() {
            super(TouchListViewDemo.this, R.layout.row2, array);

        public View getView(int position, View convertView,
                                                ViewGroup parent) {
            View row=convertView;

            if (row==null) {                                                    
                LayoutInflater inflater=getLayoutInflater();

                row=inflater.inflate(R.layout.row2, parent, false);

            TextView label=(TextView)row.findViewById(R.id.label);


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" >
        android:paddingBottom="30dp" >

            android:text="DRAG HERE"
            android:textSize="14dp" />

            android:src="@drawable/match_drag_here_target" />
            android:textSize="14dp" />

Iterating and modifying Firebase array causes undefined

Iterating and modifying Firebase array causes undefined

By : user3396534
Date : March 29 2020, 07:55 AM
wish of those help Possibly its becuase the last item in value doesn't have extrainfoimage. Because your set for value[i].extrainfoimage is async, it doesn't capture the correct i value, and therefore fails when it is executing.
Try to wrap it in a IIFE:
code :
for (i = 0; i < value.length; i++) {
    //check if there is data to be replaced
    if (value[i].extrainfoimage) {
       (function(curr) {
           //if there is fetch it from firebase and replace
                    value[curr].extrainfoimage = data.val();
Polymer + Firebase (Polymerfire): <firebase-query> not working inside single page app view (with <firebase-app&

Polymer + Firebase (Polymerfire): <firebase-query> not working inside single page app view (with <firebase-app&

By : Harsh
Date : March 29 2020, 07:55 AM
wish help you to fix your issue TLDR: The solution is to import polymerfire/polymerfire.html (even if not all elements used in that file) in the same file as your declaration.
code :
Uncaught TypeError: Cannot read property 'push' of undefined
Android firebase modifying list with in runTransaction

Android firebase modifying list with in runTransaction

By : Peter Chan
Date : March 29 2020, 07:55 AM
To fix the issue you can do I have very simple transactional code: , The problem appears to be this method:
code :
public List<String> getLikes() {
    if(null == likes) return new ArrayList<String>();
    return likes;
public List<String> getLikes() {
    if(null == likes) likes = new ArrayList<String>();
    return likes;
if(null == post.getLikes())
    post.setLikes(new ArrayList<String>());
iOS in-Call indicator is pushing down view/content, modifying root view `frame`

iOS in-Call indicator is pushing down view/content, modifying root view `frame`

By : SilverFX
Date : March 29 2020, 07:55 AM
wish of those help It's unclear if there is a flag to disable this behaviour. I did however find a way that negates the effect.
Whatever is causing the frame to shift down does so by modifying the frame of the root view. It's possible to override this setter and block the movement. In our case the root view is fixed in position, thus I did this:
code :
@implementation OurRootView

- (void)setFrame:(CGRect)frame;
    frame.origin.y = 0;
    [super setFrame:frame];
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