Handling multiple view Clicks

hey guys in this tutorial i will show you guys multiple ways to handle the clicks in the view of an android...

1 method: 

  ImageButton btplus = (ImageButton)findViewById(R.id.btplus);        
    btplus.setOnClickListener( new ImageButton.OnClickListener(){
        @Override
        public void onClick(View v) {
            Toast.makeText(getApplicationContext(), "+", Toast.LENGTH_SHORT).show(); 
        }
    });


 ImageButton btminus = (ImageButton)findViewById(R.id.btminus);
    btminus.setOnClickListener( new ImageButton.OnClickListener(){
        @Override
        public void onClick(View v) {
            Toast.makeText(getApplicationContext(), "-", Toast.LENGTH_SHORT).show(); 
        }
    });

2 method:

for implemnting this method your activity class must implement  OnClickListener interface  then override the onClick class

ImageButton btminus = (ImageButton)findViewById(R.id.btminus);
 btminus.setOnClickListener(this);

 ImageButton btplus = (ImageButton)findViewById(R.id.btplus);
 btplus.setOnClickListener(this);



  public void onClick(View v) {
        switch (v.getId()) {
        case R.id.btplus:
           Toast.makeText(getApplicationContext(), "Plus is clicked" + "+", Toast.LENGTH_SHORT).show(); 
            break;
        case R.id.btminus:
           Toast.makeText(getApplicationContext(),"Minus is clicked" + "-", Toast.LENGTH_SHORT).show();
            break;
        default:
            break;
        }
    } 

3 method:

ImageButton btminus = (ImageButton)findViewById(R.id.btminus);
 btminus.setOnClickListener(listener);

 ImageButton btplus = (ImageButton)findViewById(R.id.btplus);
 btplus.setOnClickListener(listener);


OnClickListener listener=new OnClickListener(){
        @Override
        public void onClick(View v) {

            switch (v.getId()) {
        case R.id.btplus:
           Toast.makeText(getApplicationContext(), "Plus is clicked" + "+", Toast.LENGTH_SHORT).show(); 
            break;
        case R.id.btminus:
           Toast.makeText(getApplicationContext(),"Minus is clicked" + "-", Toast.LENGTH_SHORT).show();
            break;
        default:
            break;
        }
        }
    });