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Error with OnTouchListener

开发者 https://www.devze.com 2023-01-27 10:09 出处:网络
I get an error trying to implement an OnTo开发者_运维知识库uchListener: The method onTouch(View, MotionEvent)

I get an error trying to implement an OnTo开发者_运维知识库uchListener:

The method onTouch(View, MotionEvent) of type new View.OnTouchListener(){} must override a superclass method

I have no idea why it's not working as it seems I'm overrriding the method correctly:

public class MyActivity extends Activity
{
    ...creation code etc...

    OnTouchListener mTouchListener = new OnTouchListener()
    {
        @Override
        public boolean onTouch(View v, MotionEvent event)
        {
                 ...touch code...
            }
        }
}

Any ideas on how I can debug this?


In Eclipse, go to Windows>Preference>Java>Compiler and select 1.6.

You might be using 1.5, and 1.5 does not allow @Override on interfaces methods, but just on superclass method. 1.6 does.

If it still doesn't work, remove the @Override line...

public class MyActivity extends Activity
{
    ...creation code etc...

    OnTouchListener mTouchListener = new OnTouchListener()
    {

        public boolean onTouch(View v, MotionEvent event)
        {
                 ...touch code...
            }
        }
}


View.OnTouchListener mTouchListener = new View.OnTouchListener() {

        @Override
        public boolean onTouch(View view, MotionEvent motionEvent) {
            return false; 
        }
    };

that compiles just fine, are you sure that there are no syntax errors ? What are you compiler settings ? java 5 or 6 ?

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