This crash is being reported sporadically and I can't explain why it would happen or repro it at all myself. I have an activity container which hosts a fragment in a frame layout that gets replaced as the user traverses the app, a bottom bar fragment which stays there all the time, and a standard tool bar and nav drawer. The error occurs when the bottom bar / footer fragment (called the ActionsFragment in my code), sometimes cannot be inflated.
Full activity xml:
<RelativeLayout
android:id="@+id/main_parent_view"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:fitsSystemWindows="true">
<android.support.v4.widget.DrawerLayout
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="@+id/wholeScreen"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/screenMinusBar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
<FrameLayout
android:id="@+id/fragmentContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingTop="?attr/actionBarSize"/>
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:scaleType="fitXY"
android:src="@drawable/action_fragment_shadow"/>
</RelativeLayout>
<fragment android:name="com.xyz.fragments.ActionsFragment"
android:id="@+id/actions_bottom_fragment"
android:layout_width="match_parent"
android:layout_height="56dp"/>
</LinearLayout>
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?colorPrimary"
android:minHeight="?attr/actionBarSize"
app:theme="@style/ThemeOverlay.AppCompat.ActionBar"
app:popupTheme="@style/Toolbar_Popup"/>
</RelativeLayout>
<com.devspark.robototextview.widget.RobotoTextView
android:id="@+id/action_text_view_uid"
style="?android:textAppearanceSmallInverse"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|center_horizontal"
android:gravity="center"
android:paddingBottom="@dimen/activity_vertical_margin"
android:textColor="@color/white"
android:visibility="invisible"
app:typeface="roboto_light"/>
</FrameLayout>
<!-- The navigation drawer -->
<LinearLayout
android:id="@+id/left_drawer_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_gravity="start"
android:background="@color/white">
<ListView
android:id="@+id/left_drawer_list"
android:layout_width="@dimen/nav_drawer_width"
android:layout_height="wrap_content"
android:listSelector="@android:color/transparent"
android:choiceMode="singleChoice"
android:cacheColorHint="#0000"
android:paddingBottom="8dp"/>
<View
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:background="@color/divider"
android:paddingTop="8dp"/>
<LinearLayout
android:id="@+id/nav_list_settings"
android:layout_width="match_parent"
android:layout_height="48dp"
android:layout_marginTop="8dp"
android:clickable="true"
android:background="@drawable/nav_item_selector"
android:orientation="horizontal">
<ImageView
android:layout_width="24dp"
android:layout_height="24dp"
android:layout_gravity="center"
android:background="@null"
android:layout_marginLeft="16dp"
android:src="@drawable/ic_nav_settings"/>
<com.devspark.robototextview.widget.RobotoTextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:minHeight="@dimen/listPreferredItemHeightSmall"
android:paddingLeft="32dp"
android:text="Help and Feedback"
android:textColor="@color/text"
android:textSize="14sp"
app:typeface="roboto_medium"/>
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="@color/white"/>
</LinearLayout>
</android.support.v4.widget.DrawerLayout>
ActionsFragment.java basically just has some click listeners and two image buttons in a single layout, nothing too fancy, here's the majority of it:
public class ActionsFragment extends Fragment {
private static final int ANIMATION_DURATION = 200;
private Context mContext;
private MainActivity mHostingActivity;
private int screenWidth, screenHeight;
private TextView mUIDTextView;
private BitmapFactory.Options mBitmapOptions;
private Bitmap qrBitmap;
private Animator mCurrentAnimator;
private ImageView mImageButton1;
private ImageButton mImageButton2;
private int mImageButtonHeight = 64;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_action_bar_bottom, container, false);
mContext = getActivity();
DisplayMetrics metrics = new DisplayMetrics();
getActivity().getWindowManager().getDefaultDisplay().getMetrics(metrics);
switch (metrics.densityDpi) {
case DisplayMetrics.DENSITY_MEDIUM:
mImageButtonHeight = 48;
break;
case DisplayMetrics.DENSITY_HIGH:
mImageButtonHeight = 72;
break;
case DisplayMetrics.DENSITY_XHIGH:
mImageButtonHeight = 96;
break;
case DisplayMetrics.DENSITY_XXHIGH:
mImageButtonHeight = 144;
break;
}
assert view != null;
mImageButton2 = (ImageButton) view.findViewById(R.id.action_btn_1);
mImageButton1 = (ImageButton) view.findViewById(R.id.action_btn_2);
mHostingActivity = (MainActivity) getActivity();
setupMetrics();
setup();
return view;
}
@Override
public void onStart(){
super.onStart();
mUIDTextView = (TextView) getActivity().findViewById(R.id.action_text_view_uid);
mUIDTextView.setText("User Number:\n"
+ App.getDatabaseHandler().getTableLoggedUserID() + "\n");
}
private void setupMetrics() {
DisplayMetrics displayMetrics = new DisplayMetrics();
// the results will be higher than using the activity context object or the getWindowManager() shortcut
WindowManager wm = (WindowManager) mContext.getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
wm.getDefaultDisplay().getMetrics(displayMetrics);
screenWidth = displayMetrics.widthPixels;
screenHeight = displayMetrics.heightPixels;
}
private void setup() {
try {
if (App.isUserLoggedIn()) {
User user = App.getDatabaseHandler().getUser();
String uid = user.getUID();
File imgFile = new File(uid);
//if the image exists load it from memory
if (imgFile.exists()) {
mBitmapOptions = new BitmapFactory.Options();
mBitmapOptions.inSampleSize = 1;
}
int newWidth = screenWidth / 3;
newWidth = newWidth * 2;
int newHeight = screenHeight / 3;
newHeight = newHeight * 2;
//create a qr for the image button
if (!imgFile.exists()) {
String id = user.getId();
BarcodeGenerator b = new BarcodeGenerator(id, newWidth, newHeight, mContext);
b.createqr();
}
bm = BitmapFactory.decodeFile(user.getQr(), mBitmapOptions);
mImageButton1.setImageBitmap(Bitmap.createScaledBitmap(bm, mImageButtonHeight, mImageButtonHeight, false));
mImageButton1.invalidate();
getActivity().onContentChanged();
mImageButton1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//Launch activity
}
});
} else {
// If the user is not logged in, they are returned to the Login screen of the application.
Intent login = new Intent(mContext.getApplicationContext(), LoginActivity.class);
login.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(login);
getActivity().finish();
}
} catch (Exception e) {
}
}
}
Stack trace of the error:
android.view.InflateException: Binary XML file line #54: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2295)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2349)
at android.app.ActivityThread.access$700(ActivityThread.java:159)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1316)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5419)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1046)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:862)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #54: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:719)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:761)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:769)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:769)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:769)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:769)
at android.view.LayoutInflater.inflate(LayoutInflater.java:498)
at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
at android.view.LayoutInflater.inflate(LayoutInflater.java:354)
at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:228)
at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
at com.xyz.activities.MainActivity.onCreate(MainActivity.java:232)
at android.app.Activity.performCreate(Activity.java:5372)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1104)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2257)
... 11 more
Caused by: java.lang.IllegalStateException: Fragment com.xyz.fragments.ActionsFragment did not create a view.
at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2189)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:297)
at android.support.v7.app.ActionBarActivity.onCreateView(ActionBarActivity.java:547)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:691)
Similar errors on SO reference the fact that the xml fragment must have an id, which mine does, and that the super.OnCreate() should be called before setContentView() in the activity, which I do.
Any suggestions?
Edit:
fragment_action_bar_bottom.xml
<RelativeLayout
android:id="@+id/action_layout"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_vertical">
<ImageButton
android:id="@+id/action_btn_1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:background="@drawable/img_btn_1"/>
<ImageButton
android:id="@+id/action_btn_2"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:padding="8dp"
android:background="@null"
android:scaleType="centerInside"/>
</RelativeLayout>
