升级Android studio4.1后用switch语句判断id直接给出了警告

Resource IDs will be non-final in Android Gradle Plugin version 5.0, avoid using them in switch case statements

int id = view.getId();switch (id) {case R.id.button1:action1();break;case R.id.button2:action2();break;case R.id.button3:action3();break;}

谷歌官方给出的解决办法是把switch换成if else

int id = view.getId();if (id == R.id.button1) {action1();} else if (id == R.id.button2) {action2();} else if (id == R.id.button3) {action3();}

根据谷歌官方的说法，这样的写法变更在UI中几乎没有性能损失。