floating-action-button

问题 This question already has answers here : error: package android.support.design.widget does not exist (4 answers) Closed 2 years ago . I've added xml code to have a floating action button on my screen (no functionality right now but will) but when I go onto the design view of xml, instead of showing the email icon image, it shows just text like 'floating action button': ' Could someone explain what I've done wrong? the code I use: <android.support.design.widget.FloatingActionButton android:id=

问题 So I've looked several places for how this is supposed to be implemented and I'm sure I'm missing something trivial, but I have a flutter app with a Scaffold who's body is a PageView. I need to have a different FAB for some pages and the way it's currently set up is the floatingActionButton attribute of the scaffold is set to access an array of FloatingActionButtons with the index being the _currentPageIndex (private variable shared by bottomNavBar and _pageController. This changes the FAB

问题 I have problem with position of floating action button. When i put ad from Admob fab is over it. I want to put ad under fab button but any method that I try does not work. Image of current postion fab to ad @layout/activity_layout: <?xml version="1.0" encoding="utf-8"?> <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout

问题 I have problem with position of floating action button. When i put ad from Admob fab is over it. I want to put ad under fab button but any method that I try does not work. Image of current postion fab to ad @layout/activity_layout: <?xml version="1.0" encoding="utf-8"?> <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout

问题 I have problem with position of floating action button. When i put ad from Admob fab is over it. I want to put ad under fab button but any method that I try does not work. Image of current postion fab to ad @layout/activity_layout: <?xml version="1.0" encoding="utf-8"?> <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout

问题 I can't set the background of a FAB with a gradient. The background of the FAB shows a black color My mainActivtiy xml file is given below <?xml version="1.0" encoding="utf-8"?> <androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity"> <com

问题 I'm adding a floating action button to my app, I have a material design theme and set it into the Android Manifest, I've already set the AppCompatActivity inheritance to the MainActivity but if I run my app I have an exception says " You need to use a Theme.AppCompat theme (or descendant) with this activity." This is my main activity: using System; using Android.App; using Android.Widget; using Android.OS; using Android.Support.Design.Widget; using Android.Support.V4.View; using Android

问题 I'm adding a floating action button to my app, I have a material design theme and set it into the Android Manifest, I've already set the AppCompatActivity inheritance to the MainActivity but if I run my app I have an exception says " You need to use a Theme.AppCompat theme (or descendant) with this activity." This is my main activity: using System; using Android.App; using Android.Widget; using Android.OS; using Android.Support.Design.Widget; using Android.Support.V4.View; using Android

问题 I'm adding a floating action button to my app, I have a material design theme and set it into the Android Manifest, I've already set the AppCompatActivity inheritance to the MainActivity but if I run my app I have an exception says " You need to use a Theme.AppCompat theme (or descendant) with this activity." This is my main activity: using System; using Android.App; using Android.Widget; using Android.OS; using Android.Support.Design.Widget; using Android.Support.V4.View; using Android

来源： https://stackoverflow.com/questions/40954354/floating-action-button-not-in-bottom-right