floating-action-button

I was studying the Android Material Design using Kotlin and everything was going fine until I tried to use the android.support.design.widget.FloatingActionButton. When I rebuild the project I got the error message below: Information:Gradle tasks [clean, :app:assembleDebug] C:\Users\qin\.gradle\caches\transforms-1\files-1.1\appcompat-v7-26.1.0.aar\3d5ddc383685b19d22429a29e09f2aeb\res\values\values.xml Error:(1419, 5) error: style attribute 'attr/textColor (aka br.com.conseng.themedesign:attr/textColor)' not found. Error:(1525, 5) error: style attribute 'attr/textColor (aka br.com.conseng

If the FAB (Floating Action Button) hides before a snackbar appears (in CoordinatorLayout) then the next time I show the FAB it is drawn in the old position (not moved down to the original position). If the FAB is visible when the snackbar dissapears, then everything is working as expected. Did I miss something or is it a bug? UPD: As requested, here is a minimal example. I will put most important bits here, and a fully working example can be found on my github This is just a very slightly modified example from Android template Activity project. activity_main.xml : <?xml version="1.0" encoding

I have an app with full of custom views. When I try to create a FAB programmatically, it throws an error Caused by: java.lang.IllegalArgumentException: You need to use a Theme.AppCompat theme (or descendant) with the design library. Here is my code. private FloatingActionButton getFAB() { FloatingActionButton fab = new FloatingActionButton(getContext()); fab.setBackgroundDrawable(ContextCompat.getDrawable(getContext(), R.drawable.ic_add_white_24dp)); return fab; } This is my app theme. <!-- Base application theme. --> <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"> <!--

When I set a color to my fab, it looks like so: My layout xml: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity$PlaceholderFragment"> <android.support

Is it possible to make the FloatingActionButton in the centre instead of the right side? import 'package:flutter/material.dart'; import 'number.dart'; import 'keyboard.dart'; class ContaPage extends StatelessWidget { @override Widget build(BuildContext context) => new Scaffold( body: new Column( children: <Widget>[ new Number(), new Keyboard(), ], ), floatingActionButton: new FloatingActionButton( elevation: 0.0, child: new Icon(Icons.check), backgroundColor: new Color(0xFFE57373), onPressed: (){} ) ); } Try wrapping it in a Center widget or use a crossAxisAlignment of CrossAxisAlignment

I have a floating action button that I would like to add on top of a scrollview so that the button stays, even if you scroll. I want it on the top of the scrollview and in the bottom right corner of the screen. What combination of views do I need to use to accomplish this? Here is the xml file: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" xmlns:fab="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.nhscoding.safe2tell.STORIES" android

I'm trying to create a floating button in my app. The button is there, but the image in the button is a bit upwards (see image). I can't figure out what's wrong with it. Below is part of the XML for floating button. <android.support.design.widget.FloatingActionButton android:id="@+id/buttonUp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="16dp" android:layout_marginTop="480dp" android:clickable="true" android:scaleType="center" android:src="@drawable/btn_back_to_top_3x" app:layout_anchor="@id/layout" app:layout_anchorGravity="bottom|right