CODEWITHSUNDEEP
androidbuttonimagebutton
user1191027
user1191027

Reputation:

ImageView Button Toggle in Android

I'm trying to make an ImageView button toggle when I click on it. I've got the below code:

    ImageView button01 = (ImageView) findViewById(R.id.button01);
    button01.setOnClickListener(new OnClickListener() {
        int button01pos = 0;
        public void onClick(View v) {
            if (button01pos == 0) {
                button01.setImageResource(R.drawable.image01);
                button01pos = 1;
            } else if (button01pos == 1) {
                button01.setImageResource(R.drawable.image02);
                button01pos = 0;
            }
        }
    });

But for some reason button01 is underlined in red in Eclipse and it gives the error:

Cannot refer to a non-final variable button01 inside an inner class defined in a different method

Does anyone know why it's doing this and how to fix it?

Thanks

Upvotes: 2

Views: 8831

Answers (3)

Kalsoom Jameel
Kalsoom Jameel

Reputation: 1

Try this, it worked for me. Here checkbox visibility is set to "Invisible"...! this code is inside a button OnClickListener...!

@Override
public void onClick(View v) {

    ImageView iv_icon = (ImageView) findViewById(R.id.icon);

    CheckBox cb = (CheckBox) findViewById(R.id.cb);

    if (cb.isChecked()) {
        iv_icon.setImageResource(R.drawable.image01);
        cb.setChecked(false);
    } else if (!cb.isChecked()) {
        iv_icon.setImageResource(R.drawable.image02);
        cb.setChecked(true);
    } else {
        // Nothing happens
    }
}

Upvotes: 0

donmj
donmj

Reputation: 409

Try this,

        int button01pos = 0;

        ImageView button01 = (ImageView) findViewById(R.id.button01);
        button01.setOnClickListener(new OnClickListener() {

        public void onClick(View v) {
            if (button01pos == 0) {
                button01.setImageResource(R.drawable.image01);
                button01pos = 1;
            } else if (button01pos == 1) {
                button01.setImageResource(R.drawable.image02);
                button01pos = 0;
            }
        }
    });

Upvotes: 0

user1191027
user1191027

Reputation:

Here is the working code:

final ImageView button01 = (ImageView) findViewById(R.id.button01);
button01.setOnClickListener(new OnClickListener() {
    int button01pos = 0;
    public void onClick(View v) {
        if (button01pos == 0) {
            button01.setImageResource(R.drawable.image01);
            button01pos = 1;
        } else if (button01pos == 1) {
            button01.setImageResource(R.drawable.image02);
            button01pos = 0;
        }
    }
});

Upvotes: 7

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