Grid example

grid_item_score.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="vertical"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:background="@drawable/grid_item_score_background"
              android:padding="8dp"
              android:minHeight="64dp"
              android:gravity="center"
    >
<TextView
    android:id="@+id/txtModule"
    android:text="zeer lange text"
    android:textSize="14sp"
    android:textAppearance="@android:style/TextAppearance.Medium"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:gravity="center"/>
    <TextView
        android:textSize="16sp"
        android:id="@+id/txtScore"
        android:text="hello"
        android:textAppearance="@android:style/TextAppearance.Medium"
        android:textStyle="bold"
        android:gravity="center"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"/>
</LinearLayout>

StudentDetailFragment.java

@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_student_detail, container, false);

        // Show the dummy content as text in a TextView.
        if (mStudent != null) {
            //create your view here
            scoreGrid=(GridView)rootView.findViewById(R.id.score_grid);
            txtTotaal=(TextView)rootView.findViewById(R.id.totale_score);
            DecimalFormat df = new DecimalFormat("#.##");
            txtTotaal.setText(getText(R.string.totale_score)+" "+df.format(mStudent.getTotaleScoreStudent()));
            myScoreAdapter=new ScoreAdapter(getActivity(),mStudent.getScoresStudent());
            scoreGrid.setAdapter(myScoreAdapter);
            ((Button)rootView.findViewById(R.id.btnToevoegenWijzigen)).setOnClickListener(this);
        }

        return rootView;
    }
    
    private class ScoreAdapter extends ArrayAdapter<String> implements ListAdapter {
        private Map<String,ModulePunt> mPunten;
        public ScoreAdapter(Context context, Map<String,ModulePunt> punten) {
            super(context, R.layout.grid_item_score,R.id.txtScore, punten.keySet().toArray(new String[punten.keySet().size()]));
            mPunten=punten;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            View row= super.getView(position, convertView, parent);
            ModulePuntViewHolder holder = (ModulePuntViewHolder)row.getTag();
            if(holder==null)
            {
                holder = new ModulePuntViewHolder(row);
                row.setTag(holder);
            }
            final ModulePunt punt = mPunten.get(getItem(position));
            holder.module.setText(punt.getModule());
            DecimalFormat df = new DecimalFormat("#.##");
            holder.score.setText(df.format(punt.getScore()));
            //if(punt.getScore()<10)tv.setTextColor(getResources().getColor(R.color.red));
            //else tv.setTextColor(getResources().getColor(android.R.color.black));
            return row;
        }

        private class ModulePuntViewHolder {
            TextView score;
            TextView module;
            public ModulePuntViewHolder(View row)
            {
                score=(TextView)row.findViewById(R.id.txtScore);
                module = (TextView)row.findViewById(R.id.txtModule);
            }
        }
    }