[Solved] Add a number to a textView using button onClick()

by 


private int i = 0;// Declare i as private

…..

TextView tv = (TextView)findViewById(R.id.tv01);
Btn.setOnClickListener(new OnClickListener() {

        public void onClick(View v) 
        {
            i = i+10;
            tv.setText( String.valueOf(i)); 
        }
    });

0

solved Add a number to a textView using button onClick()