如何解决Android的onTouchListener

Question

i have problem, I am successfully to display image in alert dialog custom, but when I want to add event onTouchListener to the image, i cannot get problem : the method setonTouchListener in Type View is not applicable . Here my source code :

public class ViewDetailItem extends Activity implements OnTouchListener{
   bla bla...
   onloaditem()
}

here onloaditem() sourcecode :

 imgmain.setImageResource(imgID);
        imgmain.setOnClickListener(new OnClickListener() {          
            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                /*Intent MyIntentDetailItem=new Intent(getBaseContext(), ViewDetailItemFullscreen.class);
                Other_class.setItemCode(timgName);
                startActivity(MyIntentDetailItem);*/

                LayoutInflater li = LayoutInflater.from(ViewDetailItem.this);
                final View inputdialogcustom = li.inflate(R.layout.activity_view_detail_item_fullscreen2, null);                
                final AlertDialog.Builder alert = new AlertDialog.Builder(ViewDetailItem.this); 


                final ImageView imgmainbig=((ImageView) inputdialogcustom.findViewById(R.id.imgmainbig));
                imgID=getBaseContext().getResources().getIdentifier(imgName2+"_1", "drawable", getBaseContext().getPackageName());  
                imgmainbig.setImageResource(imgID);
imgmainbig.setOnTouchListener(this);

}
}

The problem refers to imgmainbig.setOnTouchListener(this);

Answer 1

Change this

imgmainbig.setOnTouchListener(this);

to

imgmainbig.setOnTouchListener(ViewDetailItem.this); 

cause this refers to annonymous inner class that implements OnClickListener interface.

Since your Activity class implements interface OnTouchListener use ViewDetailItem.this