Question

I’m develop a dynamic table layout using java code

the first row is in xml

<TableLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"

            android:stretchColumns="*"
            android:id="@+id/TableMain" >

            <TableRow
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_margin="2dip"
                android:background="#000000" >

                <LinearLayout
        android:id="@+id/lTable11"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="horizontal" >

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="fill_parent"
                    android:layout_margin="1dip"
                    android:layout_weight="2"
                    android:background="#C0C0C0"
                    android:text="Grade" 
                    android:gravity="right"
                    android:padding="5dp" />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="fill_parent"
                    android:layout_margin="1dip"
                    android:layout_weight="2"
                    android:background="#C0C0C0"
                    android:text="Hourse"
                    android:gravity="right" 
                    android:padding="5dp" />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="fill_parent"
                    android:layout_margin="1dip"
                    android:layout_weight="6"
                    android:background="#C0C0C0"
                    android:text="Subject Name"
                    android:gravity="right"
                    android:padding="5dp" 
                      />

                    </LinearLayout>

            </TableRow>
        </TableLayout>

the remain rows is in the java part which is have the same property in xml

TextView tvRowGrades[]=new TextView[gotSubName.length];
    TextView tvRowHourse[]=new TextView[gotSubName.length];
    TextView tvRowSubName[]=new TextView[gotSubName.length];

    TableRow row[]=new TableRow[gotGradeItem.length];
    LinearLayout LRow[]=new LinearLayout[gotGradeItem.length];
    tableMain=(TableLayout)findViewById(R.id.TableMain);

    for(int i=0;i<gotHourse.length;i++){
        row[i]=new TableRow(this);
        TableRow.LayoutParams lRow=new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT);
        lRow.setMargins(2, 2, 2, 2);
        row[i].setLayoutParams(lRow);
        row[i].setBackgroundColor(Color.BLACK);

        LinearLayout.LayoutParams lpLRow=new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.WRAP_CONTENT);
        LRow[i]=new LinearLayout(this);
        LRow[i].setLayoutParams(lpLRow);
        LRow[i].setGravity(Gravity.CENTER);
        LRow[i].setOrientation(LinearLayout.HORIZONTAL);

        tvRowGrades[i]=new TextView(this);
        tvRowGrades[i].setText(gotGradeItem[i]);
        android.widget.LinearLayout.LayoutParams lpTvOther=new android.widget.LinearLayout.LayoutParams(android.widget.LinearLayout.LayoutParams.WRAP_CONTENT, android.widget.LinearLayout.LayoutParams.FILL_PARENT, 2);
        lpTvOther.setMargins(1, 1, 1, 1);
        tvRowGrades[i].setPadding(5, 5, 5, 5);
        tvRowGrades[i].setGravity(Gravity.RIGHT);
        tvRowGrades[i].setLayoutParams(lpTvOther);
        LRow[i].addView(tvRowGrades[i]);

        tvRowHourse[i]=new TextView(this);
        tvRowHourse[i].setText(gotHourse[i]+"");
        tvRowHourse[i].setPadding(5, 5, 5, 5);
        tvRowHourse[i].setGravity(Gravity.RIGHT);
        tvRowHourse[i].setLayoutParams(lpTvOther);
        LRow[i].addView(tvRowHourse[i]);

        tvRowSubName[i]=new TextView(this);
        tvRowSubName[i].setText(gotSubName[i]);
        android.widget.LinearLayout.LayoutParams lpTvSubName=new android.widget.LinearLayout.LayoutParams(android.widget.LinearLayout.LayoutParams.WRAP_CONTENT, android.widget.LinearLayout.LayoutParams.FILL_PARENT, 6);
        lpTvSubName.setMargins(1, 1, 1, 1);
        tvRowSubName[i].setPadding(5, 5, 5, 5);
        tvRowSubName[i].setGravity(Gravity.RIGHT);
        tvRowSubName[i].setLayoutParams(lpTvSubName);
        LRow[i].addView(tvRowSubName[i]);

        row[i].addView(LRow[i]);
        tableMain.addView(row[i]);
    }

When i run the application the table is not displaying
please i want solve this problem

Answer 1

change the TableRow width to match_parent

           <TableRow
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="2dip"
            android:background="#000000" >

The problem is that your row’s width is defined by it’s content (wrap_content), and your content’s width (the LinearLayout that is inside the row) is defined by the parent.

You can also delete the LinearLayout and put the TextView items directly in the TableRow as it extends LinearLayout.

For the other rows that you add in the code you should also change the LayoutParams:

 TableRow.LayoutParams lRow=new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT);