floating-action-button

问题 I believe most of you all have seen the rotating FloatingActionButton in apps such as Google keep, push bullet and even Google inbox app. I am trying to achieve this rotation by having an animation file that is : <?xml version="1.0" encoding="UTF-8"?> <rotate xmlns:android="http://schemas.android.com/apk/res/android" android:fromDegrees="0" android:toDegrees="135" android:pivotX="50%" android:pivotY="50%" android:repeatCount="0" android:fillAfter="true" android:fillEnabled="true" android

问题 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. <!--

问题 I'm trying to replace the third party FloatingActionButton with the native one which is packaged in library com.android.support:design:22.2.0 .The default look has a dark shadow around the image,How can I get rid of it? I know the former one provides with the method setShadow() ,but I just can't find similar one from the latter. This is the related XML layout: <android.support.design.widget.FloatingActionButton android:id="@+id/alarm_front" android:layout_width="wrap_content" android:layout

问题 When using the new FloatingActionButton , the size is determined by app:fabSize="normal" . How can I set what in dp is the size referenced by "normal" ? I tried to create values/attrs.xml : <?xml version="1.0" encoding="utf-8"?> <resources> <declare-styleable name="app"> <attr name="fabSize"> <enum name="mini" value="50dp" /> <enum name="normal" value="100dp" /> </attr> </declare-styleable> </resources> But I get the error "normal" in attribute "fabSize" is not a valid integer 回答1: There are

问题 The material design documentation has an example of Google Maps showing two floating action buttons next to one another (actually, one above the other). How is this done? I have two FAB's in a coordinator layout, but they end up on top of one another, so you only see one button. <?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" android:layout

问题 First of all, I am sorry to ask a question like this but after I downloaded latest Google IO app, I am just loving the bottom Layout as shown in the following screenshot Being new to android development, I have no clue where to start, Any idea how to achieve this bottom Layout with circle star in XML? Does anyone know what this design is called? 回答1: You can use the new Material Components for Android and the BottomAppBar component. Use something like: <com.google.android.material

问题 I followed this tutorial to implement the behaviors for both hiding the toolbar and the FAB when scrolled: https://mzgreen.github.io/2015/06/23/How-to-hideshow-Toolbar-when-list-is-scrolling(part3)/ I have pasted a demo of what the behavior looks like below. Now instead of those individual items within the recyclerview in the tabs holding just a textView, I have coded it so that they hold a picture (ImageView) and below it, a recyclerview showing a list of items. Hence, there is an outer

问题 My question revolves around the Floating action button that was introduced in Android Material Design. There are many library offering this component on GitHub as: Android-floating-action-button FloatingActionButton CircularFloatingActionMenu Fab Floating-action-button But my question is: Is there a native component with the last release of android.support.vX that was built for Floating action button ? Components such as : android.support.v7.cardview android.support.v4.widget.DrawerLayout

问题 I am trying to mimic animation and the color change for the following floating action button. The way the floating action button works is white is off and blue is on. However, I have been unsuccessful with the animation and changing the color. These have been my attempts at doing this, as you can see I have commented out all the different ways I have tried to do this. This is my code: @SuppressWarnings("unused") @OnClick(R.id.fabMovieFavourite) public void addMovieFavourite(View view) { /*

问题 I want to change fab button border color. border color is white, inside color is black or transparent I'd like my button to look like this: 回答1: fab.xml in drawable <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:innerRadius="0dp" android:shape="ring" android:thicknessRatio="2" android:useLevel="false" > <solid android:color="@android:color/transparent" /> <stroke android:width="3dp" android:color="@android:color/white" /> <