How to setImageDrawable to a View - imageview

Question

Noob to Java so I have limited knowledge. I have 2 RelativeLayouts which will hold images of a 13 card hand. One for all the cards and one slightly offset which show which cards can be played. Xml is fairly straight forward
<!--Player viewable cards-->
<RelativeLayout
android:orientation="vertical"
android:layout_width="200dp"
android:layout_height="680dp"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="100dp"
android:layout_marginLeft="15dp"
android:id="#+id/rlUserViewCards">
<ImageView
android:layout_width="100dp"
android:layout_height="85dp"
android:src="#drawable/c001"
android:rotation="90"
android:tag="1"
android:id="#+id/card1"
android:clickable="false">
</ImageView>
<ImageView
android:layout_width="100dp"
android:layout_height="85dp"
android:src="#drawable/c002"
android:rotation="90"
android:id="#+id/card2"
android:layout_below="#+id/card1"
android:layout_marginTop="-65dp"
android:clickable="false">
</ImageView>
and so on for 13 Images. I can then create a View of the relativelayout looping through the children making images INVISIBLE/VISIBLE, Clickable or not. Does this seem like a good approach?
If so, my problem when first setting the relativelayout is that I can do above as well as set Tag with the card value, I can't figure how to get the integer for the ImageView via findViewById.
userViewCards = (RelativeLayout) findViewById(R.id.rlUserViewCards);
userPickCards = (RelativeLayout) findViewById(R.id.rlUserPlayCards);
View v = userViewCards.getChildAt(0);
Resources res = getResources();
int resId = res.getIdentifier("s204", "drawable", getPackageName());
Drawable drawable = ResourcesCompat.getDrawable(getResources(), res.getIdentifier("s204", "drawable", getPackageName()), null);
ImageView insertImage = (ImageView) findViewById(??);
insertImage.setImageDrawable(drawable);
Can anyone point me in the right direction?
Thanks!

Answer 1

You can set a tag value to the imageView and recieve it in your activity as follows
<ImageView
android:layout_width="100dp"
android:layout_height="85dp"
android:src="#drawable/c001"
android:rotation="90"
android:tag="1"
android:id="#+id/card1"
android:clickable="false">
#OnClick({R.id.card1, R.id.card2, R.id.card3, R.id.card4})
public void selectedCard(View view) {
String selectedCard = view.getTag().toString();
Log.d(TAG, "Mode Selected : " + mode);
switch (Integer.parseInt(mode)) {
case Constant.Card1:
// Do something here
break;
case Constant.Card2:
// Do something here
break;
case Constant.Card3:
// Do something here
break;
case Constant.Card4:
// Do something here
}
}
Note : I am using butterknife here hence the #OnClick()