CODEWITHSUNDEEP
androidandroid-appcompatinflate-exceptionfloating-action-buttonandroid-support-design
TheLettuceMaster
TheLettuceMaster

Reputation: 15734

InflateException with FloatingActionButton from Official Design Library

I am getting a bug using the official FloatingActionButton from Google's support design library.

Here is my LogCat. 

android.view.InflateException: Binary XML file line #34: Error inflating class android.support.design.widget.FloatingActionButton
at android.view.LayoutInflater.createView(LayoutInflater.java:633)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at de.robv.android.xposed.XposedBridge.invokeOriginalMethodNative(Native Method)
at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:655)
at android.view.LayoutInflater.inflate(Unknown Source)
at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at ---.---.com.---.SubCategoryFragment.onCreateView(SubCategoryFragment.java:47)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1789)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:955)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1138)
at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:740)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1501)
at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:458)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:117)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.newInstance(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
at android.view.LayoutInflater.createView(LayoutInflater.java:607)
... 24 more
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.graphics.drawable.Drawable android.graphics.drawable.Drawable$ConstantState.newDrawable()' on a null object reference
at android.graphics.drawable.LayerDrawable$ChildDrawable.<init>(LayerDrawable.java:968)
at android.graphics.drawable.LayerDrawable$LayerState.<init>(LayerDrawable.java:1014)
at android.graphics.drawable.RippleDrawable$RippleState.<init>(RippleDrawable.java:910)
at android.graphics.drawable.RippleDrawable.createConstantState(RippleDrawable.java:901)
at android.graphics.drawable.RippleDrawable.createConstantState(RippleDrawable.java:90)
at android.graphics.drawable.LayerDrawable.mutate(LayerDrawable.java:932)
at android.graphics.drawable.RippleDrawable.mutate(RippleDrawable.java:891)
at android.view.View.applyBackgroundTint(View.java:16324)
at android.view.View.setBackgroundDrawable(View.java:16193)
at android.support.design.widget.FloatingActionButton.access$201(FloatingActionButton.java:56)
at android.support.design.widget.FloatingActionButton$1.setBackgroundDrawable(FloatingActionButton.java:118)
at android.support.design.widget.FloatingActionButtonLollipop.setBackgroundDrawable(FloatingActionButtonLollipop.java:75)
at android.support.design.widget.FloatingActionButton.<init>(FloatingActionButton.java:131)
at android.support.design.widget.FloatingActionButton.<init>(FloatingActionButton.java:79)
... 27 more

The only line that points to my app is where it inflates the xml file, and the line in that file which is my FloatingActionButton.

   <android.support.design.widget.FloatingActionButton
        android:id="@+id/myFABSubCat"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_margin="16dp"
        android:backgroundTint="@color/accent"
        android:src="@drawable/add_icon"
        app:borderWidth="0dp"
        app:elevation="4sp" />

Extra info:

Here is my app theme:

<resources>

    <!-- Base application theme. -->
    <style name="MBTIAppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="colorPrimary">@color/primary</item>
        <item name="colorPrimaryDark">@color/primaryDark</item>
        <item name="colorAccent">@color/accent</item>
        <item name="android:windowContentOverlay">@null</item>
    </style>

    <style name="ThemeNoActionBar" parent="MBTIAppTheme">
        <item name="windowActionBar">false</item>
    </style>

</resources>

Yes, I am using an AppCompatActivity.

I noticed I am using an older version of appcompat:

com.android.support:appcompat-v7:22.1.1

This seems to be up to date:

compile 'com.android.support:design:22.2.0'

Also,

minSdkVersion 16
targetSdkVersion 22

Now, I do set the Visibility to GONE in some case for my FAB, but this is after it inflates so that can't be the issue.

Now, this works with my 5.1 device, but the users who have issues have 5.0.

Is this a known bug or maybe I am doing something wrong?

Upvotes: 88

Views: 59596

Answers (7)

Ali Bdeir
Ali Bdeir

Reputation: 4365

If you're using a VectorDrawableCompat (Vector asset) you should use:

app:srcCompat="@drawable/x"

instead of:

android:src="@drawable/x"

Upvotes: 13

G.Alima
G.Alima

Reputation: 41

Just change android to app: 

android:backgroundTint="@color/accent"

To:

app:backgroundTint="@color/accent"

Upvotes: 4

Yuan
Yuan

Reputation: 135

in my case, it was because of the false configuration of activity theme. problem was solved after i changed app theme to Theme.AppCompat.xxx.

Upvotes: 0

sashk0
sashk0

Reputation: 821

I had the same issue and tried different solution. But the one that worked for me was to ensure that appcompat and design support library versions are the same. for example: 

compile 'com.android.support:appcompat-v7:23.2.0'
compile 'com.android.support:design:23.2.0'

Upvotes: 7

ehartwell
ehartwell

Reputation: 1677

Another way to get this message is if you accidentally specified different versions of the appcompat library in different modules. This is likely to happen when you create a new module, since Android Studio defaults to the most current version.

For a tidy way of managing this in multi-module projects, see: In Gradle, how do I declare common dependencies in a single place?

Upvotes: 3

Abhijeet Mallick
Abhijeet Mallick

Reputation: 1750

Just replace 

<android.support.design.widget.FloatingActionButton 
...
...
android:backgroundTint
/>

to

<android.support.design.widget.FloatingActionButton 
...
...
app:backgroundTint
/>

Upvotes: 50

Markus Rubey
Markus Rubey

Reputation: 5238

com.android.support:appcompat-v7:21+ added support for tinting widgets on devices running pre android 5.1 (API Level 21). To make use of it make sure you extend or set the AppCompat Theme and use app:backgroundTint instead of android:backgroundTint.

Example:

<android.support.design.widget.FloatingActionButton 
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_margin="16dp"
    android:src="@drawable/icon"
    app:backgroundTint="@color/accent"
    app:borderWidth="0dp" />

Upvotes: 225

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