Geek asks and answers

As you dynamically add a view from an XML file, I want to add a TableRow to a RelativeLayout

I am trying to dynamically add a table row to my activity. The table row is in relative layout. It looks good, but I don’t know where I am going wrong. Below is my code

 public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    RelativeLayout RLayout = (RelativeLayout)findViewById(R.id.RelativeLayout);
    TableRow tableRow = (TableRow)findViewById(R.id.TableRow);
    for(int i = 1; i <3; i++)
        RLayout.addView(tableRow); //My code is crashing here
}

And main.xml as follows

  <?xml version="1.0" encoding="utf-8"?>
  <RelativeLayout
  android:id="@+id/RelativeLayout"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  xmlns:android="http://schemas.android.com/apk/res/android"
  >
  <TableRow
  android:id="@+id/TableRow"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:orientation="horizontal"
  android:layout_alignParentTop="true"
  android:layout_alignParentLeft="true"
  >
  <TextView
  android:id="@+id/Text"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="Text"
  >
  </TextView>
  </TableRow>
  </RelativeLayout>

Please, help.

+3
source share
1 answer

Failure, because it is TableRowalready in the layout. If you want to add dynamically, you must create it programmatically, that is:

// PSEUDOCODE
TableRow newRow = new TableRow(this);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(/*....*/);
newRow.setLayoutParams(lp);

relLayout.add(newRow);

Actually TableRowshould be used internally TableLayout.

- , . xml, , (, TableRow ), :

LayoutInflater inflater = 
              (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);

View inflated = inflater.inflate(R.layout.your_layout, null);

inflated . null , . , , .

( , )

------ EDIT -----

ok , :

RelativeLayout RLayout = (RelativeLayout)findViewById(R.id.RelativeLayout);
TableRow tableRow = (TableRow)findViewById(R.id.TableRow);

for(int i = 1; i <4; i++) {
    LayoutInflater inflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View inflated = inflater.inflate(R.layout.main, tableRow);
}

TableRow.

row.xml, , main.xml:

<?xml version="1.0" encoding="utf-8"?>
<TableRow xmlns:android="http://schemas.android.com/apk/res/android"
  android:id="@+id/TableRow"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:orientation="horizontal"
  android:layout_alignParentTop="true"
  android:layout_alignParentLeft="true"
  >
  <TextView
  android:id="@+id/Text"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="Text"
  />
  </TableRow>

:

RelativeLayout RLayout = (RelativeLayout)findViewById(R.id.RelativeLayout);

for(int i = 1; i <4; i++) {
    LayoutInflater inflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    inflater.inflate(R.layout.row, RLayout);
}

, .

+9

More articles:


All Articles