Access scr for ImageView from CheckBox image by checking more than one CheckBox

Question

I am trying to change the image in an ImageView by accessing source of image in CheckBox. Here is part of my xml code

<ImageView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/myimage"
    android:id="@+id/img"/>
<CheckBox
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:drawableRight="@drawable/image1"
     android:id="@+id/q4op1"/>
<CheckBox
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:drawableRight="@drawable/images2"
     android:id="@+id/q4op2"/>
<CheckBox
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:drawableRight="@drawable/images"
    android:id="@+id/q4op3"/>
<CheckBox
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:drawableRight="@drawable/download"
    android:id="@+id/q4op4"/>

I want to check whether the CheckBox is checked or not. if checked then the image in drawableRight of that CheckBox should appear in the ImageView.

Can you guide me how can i write java code for this?

`cb = (CheckBox) rowView.findViewById(R.id.checkbox1); if(cb.isChecked()) { .... }` — Mehran Zamani, Aug 05 '17 at 13:35
yes sir i know this about isChecked function but how to access the reference of the image from the particular checkbox — arti, Aug 05 '17 at 13:39
you mean you have multiple image? for each a checkbox determine which is which? — Mehran Zamani, Aug 05 '17 at 13:41
but you have one imageview in your XML Layout. either have multiple with different ids such as image1, image2, ... or add them dynamically. — Mehran Zamani, Aug 05 '17 at 13:57
https://stackoverflow.com/questions/3156781/how-to-show-android-checkbox-at-right-side — anemomylos, Aug 05 '17 at 13:59
sir i have add image in right side of the checkBox whose name are image1,image2,images,download. is want one of these image in the imageView section if the ChechBox is checked, after clicking a button... — arti, Aug 05 '17 at 14:05

Rahul Khurana · Accepted Answer · 2017-08-06T05:02:24.500

I think this may solve your problem. Below code will get you all the drawables.

Drawable[] drawables = textView.getCompoundDrawables();

Now, if you want to compare then you can use

Bitmap bmp1 = ((BitmapDrawable)drawables[1] ).getBitmap();
Bitmap bmp2 = ((BitmapDrawable)getResources().getDrawable(R.drawable.twt_hover)).getBitmap();

if(bmp1 == bmp2)
{
   //Code block
}

OR

in your case

// Left(0), top(1), right(2), bottom(3) drawables.
// This is the right drawable.
Drawable rightCompoundDrawable = drawables[2];

For checking if the checkbox is checked

cb = (CheckBox) rowView.findViewById(R.id.q4op1); 
if(cb.isChecked()) {
  // do your drawable task here
}

Access scr for ImageView from CheckBox image by checking more than one CheckBox

1 Answers1