Question

I use “include” XML. I do not want to set each “activity” setOnItemClickListener.

My “include” XML food.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/foot"
    android:layout_width="fill_parent"
    android:layout_height="36dp"
    android:layout_alignParentBottom="true"
    android:background="#292929"
    android:gravity="right|center_vertical"
    android:padding="5dp" >

    <ImageView
        android:id="@+id/imageView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginRight="15dp"
        android:src="@drawable/categories" />
</LinearLayout>

and where I set him

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#595858"
    android:gravity="top" >

    <ScrollView
        android:id="@+id/scrollView1"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_above="@+id/foot">

    <include
        android:layout_alignParentBottom="true"
        layout="@layout/foot" />

</RelativeLayout>

every time the my activity uses “foot” I set on my image “setOnItemClickListener”

I want to set only once setOnItemClickListener

Thanks for the help

Answer 1

Make all your activities inherit from a base activity class that will set the listener if the imageview with the appropriate ID exists:

public class MyBaseActivity extends Activity {
    public onStart() {
      super.onStart();
      ImageView clickableImageView = (ImageView) findViewById(R.id.imageView3);
      if (clickableImageView!=null) clickableImageView .setOnClickListener(myClickListener);
    }

    private OnClickListener myClickListener = new OnClickListener() {
      // ...
    };
}