android-design-library

If I set android:layout_height="56dp" , I can see the toolbar in graphical layout. But when I set like the below, <android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" android:background="@color/purple" android:gravity="center_vertical" android:minHeight="?attr/actionBarSize" app:layout_scrollFlags="scroll|enterAlways" app:popupTheme="@style/ThemeOverlay.AppCompat.Light"> </android.support.v7.widget.Toolbar> toolbar is not showing in graphical layout. Studio says that attr/actionBarSize is marked as private.

I'm using a ScrollView in a layout, and am attempting to use the new CoordinatorLayout from the design support library . My layout file looks like this: <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_width="match_parent" android:layout_height="match_parent"> <ScrollView android:layout_width="match_parent" android:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_view_behavior"> <LinearLayout android:layout_width="match_parent" android:layout

My app works well with support libraries 23.1.0 or 23.1.1, but when i start using 23.2.0 it crashes on launch. I use five support libraries, but the ones that seem to make it crash are these two: com.android.support:appcompat-v7:23.2.0 com.android.support:design:23.2.0 I have this issue on my galaxy nexus (API 17) but not on my Nexus 7 (API 22). Does anyone know what might be the problem? Here is my gradle file: apply plugin: 'com.android.application' android { compileSdkVersion 23 buildToolsVersion "23.0.2" defaultConfig { applicationId "com.ikarirobotics.aichordfinder" minSdkVersion 15

I'm trying to use toolbar for my project. Here is the code I am using: <android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" android:layout_alignParentTop="true" android:background="?attr/colorPrimary" android:contentInsetLeft="0dp" android:elevation="@dimen/margin_padding_8dp" android:contentInsetStart="0dp"> <RelativeLayout android:id="@+id/rlToolbar" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:id="@+id/tvTitle" android:layout_width="wrap_content" android

I am trying to show snackbar view when I click on button but it shows force close error when I click on button I have define fragment class below and also error log. I have fragment class: public class HomeFragment extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_home, container, false); context = getActivity(); initUI(rootView); return rootView; } private void initUI(View view) { btn= (Button) view.findViewById(R.id.btnpress); btn.setOnClickListener(new View

I have implemented BottomNavigationView and have no idea how to set selection index or MenuItem id (in my case, middle item should be selected by default). I'm afraid there's no such possibility for now as far as it's too raw yet, but anyways any help will be appreciated. Thanks! Set the selected menu item ID using setSelectedItemId : bottomNavigationView.setSelectedItemId(R.id.item_id); This method started being available from Android Support Library 25.3.0. The only solution that worked for me is: View view = bottomNavigationView.findViewById(R.id.menu_action_dashboard); view.performClick();