我设置了一个添加按钮和一个减少按钮但不知道怎么控制
btn3.setOnClickListener(new OnClickListener(){//+
public void onClick(View v){
num+=1;
Button btn5=new Button(function31.this);
btn5.setText(String.valueOf(num));
btn5.setId(num);
l.addView(btn5);
if(num!=0) {
btn4.setVisibility(View.VISIBLE);
cs.setVisibility(View.VISIBLE);
dh.setVisibility(View.VISIBLE);
hsds.setVisibility(View.VISIBLE);
qsds.setVisibility(View.VISIBLE);
btn1.setVisibility(View.VISIBLE);
btn2.setVisibility(View.VISIBLE);
gcc.setVisibility(View.VISIBLE);
t1.setVisibility(View.VISIBLE);
t2.setVisibility(View.VISIBLE);
t3.setVisibility(View.VISIBLE);
t4.setVisibility(View.VISIBLE);
t5.setVisibility(View.VISIBLE);
t6.setVisibility(View.VISIBLE);
t7.setVisibility(View.VISIBLE);
}
}
});
btn4.setOnClickListener(new OnClickListener(){//+
public void onClick(View v){
l.removeViewAt(num);
num-=1;
if(num==0){
btn4.setVisibility(View.INVISIBLE);
cs.setVisibility(View.INVISIBLE);
dh.setVisibility(View.INVISIBLE);
hsds.setVisibility(View.INVISIBLE);
qsds.setVisibility(View.INVISIBLE);
btn1.setVisibility(View.INVISIBLE);
btn2.setVisibility(View.INVISIBLE);
gcc.setVisibility(View.INVISIBLE);
t1.setVisibility(View.INVISIBLE);
t2.setVisibility(View.INVISIBLE);
t3.setVisibility(View.INVISIBLE);
t4.setVisibility(View.INVISIBLE);
t5.setVisibility(View.INVISIBLE);
t6.setVisibility(View.INVISIBLE);
t7.setVisibility(View.INVISIBLE);
}
}
});
不知道怎么控制新添加的button