在布局中多次使用相同的视图

Question

I have an Activity which also has a ListView in it. I'm loading some EditText boxes, buttons, etc to that ListView in my getView method.

if(position==0)
            {
                ((TextView)convertView.findViewById(R.id.textview_settings)).setText("User Information");

            }
            else if(position==1 || position==2 || position==5 || position==6 || position==7 || position==10 || position==13)
            {
                ((LinearLayout)convertView.findViewById(R.id.linear_settings)).setVisibility(View.VISIBLE);
                ((RelativeLayout)convertView.findViewById(R.id.Relative_home)).setVisibility(View.GONE);

                if(position==1 || position==5 || position==5)
                    ((EditText)convertView.findViewById(R.id.edittext_settings)).setBackgroundResource(R.drawable.f_t_1_iphone);
                else if(position==7 || position==2)
                    ((EditText)convertView.findViewById(R.id.edittext_settings)).setBackgroundResource(R.drawable.f_t_3_iphone);
                else if(position==6)
                    ((EditText)convertView.findViewById(R.id.edittext_settings)).setBackgroundResource(R.drawable.f_t_2_repeat_iphone);
                else if(position==13 || position==10)
                    ((EditText)convertView.findViewById(R.id.edittext_settings)).setBackgroundResource(R.drawable.f_t_4_iphone);    
            }

And in multiple instances I'm also adding a Button to the same List . Basically, I'm just loading a particular layout file to a particular row based on the row index of the ListView . The button has the id button_title - defined in my xml below.

    convertView = mInflater.inflate(R.layout.next, null); *//inside getView method*

Contents of next.xml:

 <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:id="@+id/linear">

    <FrameLayout 
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:id="@+id/frame_settings">

    <RelativeLayout 
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:id="@+id/Relative_home"
    android:orientation="horizontal" >
    <TextView
        android:id="@+id/textview_settings"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center|left"
        android:layout_margin="5dp"
        android:text=""
        android:textSize="15dp"
        android:textStyle="bold"
        android:typeface="sans" android:layout_alignParentLeft="true"/>

     <ImageButton
        android:id="@+id/Button_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="left"
        android:layout_marginRight="10dp"
       android:background="@drawable/edit_button_pressed" android:layout_alignParentRight="true"/>
     </RelativeLayout>

     <LinearLayout
        android:id="@+id/linear_settings"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content">       
        <EditText
        android:id="@+id/edittext_settings"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:textSize="12dp"
        android:textStyle="bold"
        android:typeface="sans" android:layout_alignParentLeft="true"/>
        </LinearLayout>
     </FrameLayout>
     </LinearLayout>

Now, since I have multiple instances of the same button within this activity, I'm not able to assign unique IDs to each of these buttons. All buttons technically now hold the same ID.

Is there any way in which I can assign different IDs to each of these buttons? Programmatically?

Answer 1

You need to use findViewById on the buttons parent layout in order to change the id on the specific button.

Egs:

convertView = mInflater.inflate(R.layout.next, null);
Button buttonIWantToChangeID = convertView.findViewById(R.whatever.Button_title);
buttonIWantToChangeID.setId(1000+listPosition);

Notice findViewById is used on the convertView...

Answer 2

Here is how you can change the id of a view

Button button = context.findViewById(R.whatever.button);
button.setId();// <-- put the new id as the param

NOTE: make sure you don't have any conflicting ids!!