Question

I have a custom table cell which basically has 2 buttons, one textview and one edit text. Next to each edit text there is a plus and minus button. Effectively to increment / decrement the number in the text box.

I can’t work out how I link the buttons to the right text box. I.e. when I press plus, have a routine that only works for the edittext box in it’s row. Do I have to set a custom ID for each text box?

I have all the text coming out correctly for the questions.

My custom cell is:

<TextView
    android:id="@+id/txtOption"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:layout_weight="0.00"
    android:text="Medium Text"
    android:textAppearance="?android:attr/textAppearanceMedium" />

<Button
    android:id="@+id/btnPlus"
    style="?android:attr/buttonStyleSmall"
    android:layout_width="49dp"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_below="@+id/txtOption"
    android:layout_weight="0.00"
    android:text="+" />

<Button
    android:id="@+id/btnMinus"
    style="?android:attr/buttonStyleSmall"
    android:layout_width="49dp"
    android:layout_height="wrap_content"
    android:layout_alignBaseline="@+id/btnPlus"
    android:layout_alignBottom="@+id/btnPlus"
    android:layout_toRightOf="@+id/btnPlus"
    android:layout_weight="0.00"
    android:text="-" />

<EditText
    android:id="@+id/tbAnswer"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignBottom="@+id/btnMinus"
    android:layout_toRightOf="@+id/btnMinus"
    android:ems="10"
    android:inputType="number" >

    <requestFocus />
</EditText>

My custom cell is being called with:

    class CustomAdapter extends BaseAdapter
    {

    @Override
    public int getCount() {

        return mDescription.size();
    }

    @Override
    public Object getItem(int arg0) {

        return null;
    }

    @Override
    public long getItemId(int arg0) {

        return 0;
    }

    @Override
    public View getView(int arg0, View arg1, ViewGroup arg2) {

        LayoutInflater inf=getLayoutInflater();
        View v=inf.inflate(R.layout.noncriticalasset, arg2,false);

        Button btPlus=(Button)v.findViewById(R.id.btnPlus);
        Button btMinus=(Button)v.findViewById(R.id.btnMinus);

        TextView tv=(TextView)v.findViewById(R.id.txtOption);

        EditText et=(EditText)v.findViewById(R.id.tbAnswer);

        tv.setText(mDescription.get(arg0).toString()); 


        return v;
    }


}

I will also have to collate all the information from all of the textboxes afterwards and write one query for each. Do I have a submit button that does a for each? (Is there an auto array created or similar?)

Tom

Answer 1

Is this what you need ?

In the onclick() of the button use

@Override
    public void onClick(View v) {

            try {

                position = listview
                        .getPositionForView((View) v.getParent()); // position is an integer variable which helps you identify which item's plus button  was clicked
                Log.v("Position id", "" + position);

                // do some manipulations 
                notifyDataSetChanged();

            } catch (Exception e) {

                Log.e("error", "error" + e.getMessage());

            }

            break;