Checking Imageview Resource On Actionlistener Rather Than The Id Of The Imageview

I have 16 imageview, each set to onBtnClick as a listner, inside this method it checks whether the imageview id corresponds to a specific id, I need to change this so it checks the

Solution 1:

You can use tags to achieve this:

When creating your ImageView (in code or in XML), define a tag:

android:tag = "tag"

OR

Object tag = (Object) newInteger(R.drawable.img1);
imageView.setTag(tag);

Then retrieve the tag before you need it by:

Object tag = imageView.getTag();
int drawableId = Integer.parseInt(tag.toString());
if( drawableId == R.drawable.img1 ) {
      ....
}

Good luck!

Solution 2:

There is no way to do this directly with an imageView. There is however nothing stopping you from subclassing imageView and adding the required functionality. For example:

import android.content.Context;
import android.util.AttributeSet;
import android.widget.ImageButton;

publicclassMyImageButtonextendsImageButton {

privatestaticfinalStringANDROID_NAME_SPACE="http://schemas.android.com/apk/res/android";
privateintmDrawableResId= -1;

publicMyImageButton(Context context) {
    super(context);
    // TODO Auto-generated constructor stub
}

publicMyImageButton(Context context, AttributeSet attrs) {
    super(context, attrs);
    mDrawableResId = attrs.getAttributeResourceValue(ANDROID_NAME_SPACE, "src", -1);
}

publicMyImageButton(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    mDrawableResId = attrs.getAttributeResourceValue(ANDROID_NAME_SPACE, "src", -1);
}
@OverridepublicvoidsetImageResource(int resId){
    super.setImageResource(resId);
    mDrawableResId = resId;
}

publicintgetDrawableResId(){
    return mDrawableResId;
}
}

This catches setting the drawable directly and from XML.

(diclaimer: I have never tried this however it should do exactly what you want. The example above does work in the emulator. If anyone has any opinions on this approach I would love to hear them.)