概述
首先声明一个boolean类型的对象status=fasle,给Button点击事件中添加if-else选择,当!false时,按钮显示文字open,然后status=true;在else中显示文字为close,status=false。代码
private Button btn_open;private boolean status=false;
btn_open.setText("open");btn_open= (Button) findViewById(R.id.btn_open);}public void open(View v){if(!status){btn_open.setText("close");status=true;}else{btn_open.setText("open");status=false;}}
PS:点击事件在xml文件中添加属性android:onClick=“open”