我想编写一个可以通过单击按钮设置的计时器。例如,按钮1将计时器设置为1分钟。按钮2将计时器设置为2分钟。第三个按钮应该启动和停止计时器。我尝试了很多代码示例,但它没有运行。有人知道如何解决这个问题?
public void mittelBtn (View view){
EditText timerText = (EditText) findViewById(R.id.timerText);
timerText.setText("7:00");
countDownTimer =new CountDownTimer(420000, 1000) {
@Override
public void onTick(long millisUntilFinished) {
}
@Override
public void onFinish() {
}
}.start();
}
public void weichPlusBtn (View view){
EditText timerText = (EditText) findViewById(R.id.timerText);
timerText.setText("5:00");
countDownTimer =new CountDownTimer(300000, 1000) {
@Override
public void onTick(long millisUntilFinished) {
}
@Override
public void onFinish() {
}
}.start();