Question

I am looking for a way to change the drawable image source based on radio button selection.

Imageview displays image 1
radio button 1 selected

if radio button 2 selected
imageview displays image 2

etc…

any suggestions would be most appreciated.

Thank you
this is what i have in the java file:

    private OnClickListener rollRightlistener = new OnClickListener() {
        public void onClick(View v) {
            roll_left.setChecked(false);
            roll_right.setChecked(true);
            ImageView i = (ImageView) findViewById(R.id.rol_off_45_mainimage);
            i.setImageResource(R.drawable.cube_rolling_45_right);
        }
    };

getting multiple markers at this line error where you see ImageView i = and also ImageView cannot be resolved to a type.

any suggestions would be great

Answer 1

Listen for the change and the set the background draw-able:

private OnClickListener radio_listener1 = new OnClickListener() {
    public void onClick(View v) {
        ImageView i = (ImageView) findViewById(R.id.View);
        i.setImageResource(R.drawable.image1);

    }
};

private OnClickListener radio_listener2 = new OnClickListener() {
    public void onClick(View v) {
        ImageView i = (ImageView) findViewById(R.id.View);
        i.setImageResource(R.drawable.image2);
    }
};

---

final RadioButton radio_red = (RadioButton) findViewById(R.id.radio_red);
final RadioButton radio_blue = (RadioButton) findViewById(R.id.radio_blue);
radio_red.setOnClickListener(radio_listener1);
radio_blue.setOnClickListener(radio_listener2); 

---

      <RadioGroup
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:orientation="vertical">
      <RadioButton android:id="@+id/radio_red"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="Red" />
      <RadioButton android:id="@+id/radio_blue"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="Blue" />
    </RadioGroup>