CODEWITHSUNDEEP
androidandroid-appcompatandroid-recyclerviewandroid-cardview
zliebersbach
zliebersbach

Reputation: 130

Android CardView Not Displaying Content

I am trying to simply place a TextView inside a CardView, but to no avail. All I need to do is make two numbers appear inside the two CardViews. At the moment, with code below, the two CardViews appear, but do not show any text / content inside them.

I have tried many different combinations but none seem to be working! Placing the TextView inside a LinearLayout does not work, nor does making it a direct child of the CardView.

Here's my current code:

calendar_view.xml

<?xml version="1.0" encoding="utf-8"?>
<hoo.box.facecalendar.SquareCardView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    card_view:cardCornerRadius="4dp"
    card_view:cardUseCompatPadding="true"
    android:id="@+id/calendar_view_card"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:id="@+id/calendar_view_day"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:gravity="center"
            android:singleLine="true"
            android:textColor="@color/primary_text"/>

    </RelativeLayout>

</hoo.box.facecalendar.SquareCardView>

SquareCardView.java

public class SquareCardView extends CardView {
    public SquareCardView(Context context) {
        super(context);
    }

    public SquareCardView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public SquareCardView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        final int width = getDefaultSize(getSuggestedMinimumWidth(), widthMeasureSpec);
        setMeasuredDimension(width, width);
    }
}

CalendarAdapter.java

public class CalendarAdapter extends RecyclerView.Adapter<CalendarAdapter.CalendarViewHolder> {
    private LayoutInflater inflater;
    private Date curDate;
    private List<Date> dateList;

    public CalendarAdapter(Context context) {
        inflater = LayoutInflater.from(context);
        curDate = new Date();
        dateList = new ArrayList<Date>();
    }

    @Override
    public CalendarViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
        View view = inflater.inflate(R.layout.calendar_view, viewGroup, false);
        CalendarViewHolder viewHolder = new CalendarViewHolder(view);
        return viewHolder;
    }

    @Override
    public void onBindViewHolder(CalendarViewHolder calendarViewHolder, int i) {
        if (dateList.size() <= i) {
            Date tempDate = new Date(curDate);
            tempDate.addDays(i + 1);
            dateList.add(i, tempDate);
        }
        Date iDate = dateList.get(i);
        calendarViewHolder.TEXTVIEW.setText(Integer.toString(iDate.day));
    }

    @Override
    public int getItemCount() { return dateList.size() + 1; }

    class CalendarViewHolder extends RecyclerView.ViewHolder {
        public final TextView TEXTVIEW;
        public final SquareCardView CARDVIEW;

        public CalendarViewHolder(View itemView) {
            super(itemView);

            TEXTVIEW = (TextView) itemView.findViewById(R.id.calendar_view_day);
            CARDVIEW = (SquareCardView) itemView.findViewById(R.id.calendar_view_card);
        }
    }
}

Just a prior thanks to anyone who can help me! This has been eating away at me for days!

Upvotes: 2

Views: 3601

Answers (2)

chetan
chetan

Reputation: 1043

There is problem with your support library which you are using for cardview. The compiled sdk version and support lib version should be same.

for example: In build.gradle

if compileSdkVersion 23 then

in dependencies you should use

compile 'com.android.support:cardview-v7:23.0.0'

Check both the versions in build.gradle.

ps: if you use support lib version 24 studio suggest you the following

"this support library should not use a different version (24) than the compilesdkversion (23)"

best luck !

Upvotes: 0

zliebersbach
zliebersbach

Reputation: 130

After about 3 hours of playing with it, I found the solution! It was a problem with SquareCardView's onMeasure() not resizing the inner layout bounds. Below is what I altered it to:

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    super.onMeasure(widthMeasureSpec, widthMeasureSpec);
}

Upvotes: 1

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