I made a CardView adapter through RecyclerView to use the same card template for this function.
The goal is to create specific cards with different colors based on the inc_status parameter in INCCards.java . But this does not seem to work.
Here is the source code for the template card:
item_inc_card.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:card_view="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingLeft="@dimen/spacing_medium" android:paddingRight="@dimen/spacing_medium" android:paddingTop="@dimen/spacing_medium" android:background="@color/tertiary"> <android.support.v7.widget.CardView xmlns:card_view="http://schemas.android.com/apk/res-auto" android:id="@+id/card_view" android:layout_width="match_parent" android:layout_height="wrap_content" card_view:cardCornerRadius="@dimen/spacing_none"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:paddingLeft="@dimen/spacing_large" android:paddingRight="@dimen/spacing_large" android:paddingTop="@dimen/spacing_large" android:paddingBottom="@dimen/spacing_medium" android:id="@+id/relative_layout"> <TextView android:id="@+id/course_code" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_alignParentLeft="true" android:textColor="@color/white" android:textSize="@dimen/text_headline" android:text="@string/course_code" android:textStyle="bold"/> <TextView android:id="@+id/course_title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/course_code" android:textColor="@color/white" android:textSize="@dimen/text_subhead" android:text="@string/course_title" /> <TextView android:id="@+id/faculty" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="@color/white" android:layout_below="@+id/course_title" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:textStyle="italic" android:textSize="@dimen/text_body" android:text="@string/faculty" /> <ImageView android:id="@+id/status_icon" android:src="@drawable/icon_avatar" android:layout_width="@dimen/size_user_icon" android:layout_height="@dimen/size_user_icon" android:layout_above="@+id/faculty" android:layout_alignParentRight="true" android:layout_alignParentEnd="true" /> <TextView android:id="@+id/inc_grade" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="@dimen/text_body" android:layout_below="@+id/status_icon" android:layout_alignRight="@+id/status_icon" android:layout_alignEnd="@+id/status_icon" android:layout_alignLeft="@+id/status_icon" android:layout_alignStart="@+id/status_icon" android:gravity="center" android:textAlignment="center" android:textColor="@color/white" android:text="@string/equiv_grade"/> </RelativeLayout> <TextView android:layout_width="fill_parent" android:layout_height="0.001dp" android:background="#FFFFFF" android:id="@+id/line_divider"/> <LinearLayout android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content" android:paddingLeft="@dimen/spacing_large" android:paddingRight="@dimen/spacing_medium" android:paddingBottom="@dimen/spacing_medium" android:layout_marginTop="@dimen/spacing_medium" android:id="@+id/semesterInfoLinearLayout"> <TextView android:id="@+id/section" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="@dimen/text_caption" android:text="@string/section" android:textColor="@color/white" android:layout_weight="0.33" /> <TextView android:id="@+id/semester" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="@dimen/text_caption" android:text="@string/semester" android:textColor="@color/white" android:layout_weight="0.33" android:gravity="center" /> <TextView android:id="@+id/acad_year" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="@dimen/text_caption" android:text="@string/acad_year" android:textColor="@color/white" android:layout_weight=".33" android:gravity="right" /> </LinearLayout> </LinearLayout> </android.support.v7.widget.CardView> </LinearLayout>
And for the fragment layout:
item_inc_card.xml
<android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/fragment_inc_cards" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/tertiary"/>
Where each map is initialized by an object
INCCards.java
package ph.edu.amitypipduo.myiit; public class INCCards { String course_code, course_title, faculty, section, semester, acad_year; int inc_status, status_icon; final String inc_grade = "INC 3.00"; public INCCards(String course_code, String course_title, String faculty, String section, String semester, String acad_year, String inc_status) { this.course_code = course_code; this.course_title = course_title; this.faculty = faculty; this.section = section; this.semester = semester; this. acad_year = acad_year; switch (inc_status) { case "notice": this.inc_status = R.color.inc_notice; this.status_icon = R.drawable.inc_notice; break; case "alert": this.inc_status = R.color.inc_alert; this.status_icon = R.drawable.inc_alert; break; case "warning": this.inc_status = R.color.inc_warning; this.status_icon = R.drawable.inc_warning; break; case "danger": this.inc_status = R.color.inc_danger; this.status_icon = R.drawable.inc_danger; break; } } }
I tried setting the background color of the map using the onBindViewHolder method to:
cardViewHolder.card_view.setCardBackgroundColor(inc_cards.get(i).inc_status);
as shown here in
INCAdapter.java
package ph.edu.amitypipduo.myiit; import android.support.v7.widget.CardView; import android.support.v7.widget.RecyclerView; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.TextView; import java.util.List; public class INCAdapter extends RecyclerView.Adapter<INCAdapter.CardViewHolder> { List<INCCards> inc_cards; public INCAdapter(List<INCCards> inc_cards){ this.inc_cards = inc_cards; } @Override public CardViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) { View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_inc_card, viewGroup, false); CardViewHolder card_view_holder = new CardViewHolder(view); return card_view_holder; } @Override public void onBindViewHolder(CardViewHolder cardViewHolder, int i) { cardViewHolder.course_code.setText(inc_cards.get(i).course_code); cardViewHolder.course_title.setText(inc_cards.get(i).course_title); cardViewHolder.faculty.setText(inc_cards.get(i).faculty); cardViewHolder.section.setText(inc_cards.get(i).section); cardViewHolder.semester.setText(inc_cards.get(i).semester); cardViewHolder.acad_year.setText(inc_cards.get(i).acad_year); cardViewHolder.inc_grade.setText(inc_cards.get(i).inc_grade); cardViewHolder.status_icon.setImageResource(inc_cards.get(i).status_icon); cardViewHolder.card_view.setCardBackgroundColor(inc_cards.get(i).inc_status); } @Override public int getItemCount() { return inc_cards.size(); } @Override public void onAttachedToRecyclerView(RecyclerView recyclerView) { super.onAttachedToRecyclerView(recyclerView); } public static class CardViewHolder extends RecyclerView.ViewHolder { CardView card_view; TextView course_code, course_title, faculty, section, semester, acad_year, inc_grade; ImageView status_icon; CardViewHolder(View itemView) { super(itemView); card_view = (CardView) itemView.findViewById(R.id.card_view); course_code = (TextView) itemView.findViewById(R.id.course_code); course_title = (TextView) itemView.findViewById(R.id.course_title); faculty = (TextView) itemView.findViewById(R.id.faculty); inc_grade = (TextView) itemView.findViewById(R.id.inc_grade); section = (TextView) itemView.findViewById(R.id.section); semester = (TextView) itemView.findViewById(R.id.semester); acad_year = (TextView) itemView.findViewById(R.id.acad_year); status_icon = (ImageView) itemView.findViewById(R.id.status_icon); } } }
Then initialize the data in the fragment class and inflate the layout:
INCMonitorFragment.java
package ph.edu.amitypipduo.myiit; import android.app.Activity; import android.app.Fragment; import android.net.Uri; import android.os.Bundle; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import java.util.ArrayList; import java.util.List; public class INCMonitorFragment extends Fragment { // TODO: Rename parameter arguments, choose names that match // the fragment initialization parameters, eg ARG_ITEM_NUMBER private static final String ARG_PARAM1 = "param1"; private static final String ARG_PARAM2 = "param2"; // TODO: Rename and change types of parameters private String mParam1; private String mParam2; private OnFragmentInteractionListener mListener; private RecyclerView recycler_view; private LinearLayoutManager linear_layout_manager; private INCAdapter inc_adapter; private List<INCCards> inc_cards; private void initializeData() { inc_cards = new ArrayList<>(); inc_cards.add(new INCCards("CSC 198", "Methods of Research", "Prof. Cyrus Gabilla", "CS-1A", "SECOND SEMESTER", "AY 2014-2015", "danger")); inc_cards.add(new INCCards("POLSCI 2", "Philippine Govt. & Const.", "Prof. Cyrus Gabilla", "AB4", "SUMMER SEMESTER", "AY 2013-2014", "warning")); inc_cards.add(new INCCards("ENG 2N", "Writing in Discipline", "Prof. Rabindranath Polito", "B4", "FIRST SEMESTER", "AY 2012-2013", "alert")); inc_cards.add(new INCCards("MATH 51", "I Forgot the Course Title", "Prof. Forgotten Name", "69", "SECOND SEMESTER", "AY 2012-2013", "notice")); } // TODO: Rename and change types and number of parameters public static INCMonitorFragment newInstance(String param1, String param2) { INCMonitorFragment fragment = new INCMonitorFragment(); Bundle args = new Bundle(); args.putString(ARG_PARAM1, param1); args.putString(ARG_PARAM2, param2); fragment.setArguments(args); return fragment; } public INCMonitorFragment() { // Required empty public constructor } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (getArguments() != null) { mParam1 = getArguments().getString(ARG_PARAM1); mParam2 = getArguments().getString(ARG_PARAM2); } initializeData(); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Inflate the layout for this fragment View view = inflater.inflate(R.layout.fragment_inc_monitor, container, false); recycler_view = (RecyclerView) view.findViewById(R.id.fragment_inc_cards); recycler_view.setHasFixedSize(true); linear_layout_manager = new LinearLayoutManager(getActivity().getApplicationContext()); recycler_view.setLayoutManager(linear_layout_manager); inc_adapter = new INCAdapter(inc_cards); recycler_view.setAdapter(inc_adapter); return view; } // TODO: Rename method, update argument and hook method into UI event public void onButtonPressed(Uri uri) { if (mListener != null) { mListener.onFragmentInteraction(uri); } } @Override public void onAttach(Activity activity) { super.onAttach(activity); try { mListener = (OnFragmentInteractionListener) activity; } catch (ClassCastException e) { throw new ClassCastException(activity.toString() + " must implement OnFragmentInteractionListener"); } } @Override public void onDetach() { super.onDetach(); mListener = null; } }
But this only shows it:
Why doesn't he recognize color? How did R.drawable..... recognized onBindViewHolder , not R.color..... ?