我试图取消 onbackpressed 上的倒数计时器，我把 counter.cancel; 那里但出现“'count'无法解决”错误。我想它找不到倒数计时器！有一个 btn_riazi1_1_1 可以取消定时器。
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_riazi1_1);
//// handling timer
final TextView textic = (TextView) findViewById(R.id.riazi1_1_timer);
final CountDownTimer Count = new CountDownTimer(5000, 1000) {
public void onTick(long millisUntilFinished) {
textic.setText(getResources().getString(R.string.remaintime) + millisUntilFinished / 1000);
}
public void onFinish() {
textic.setText(getResources().getString(R.string.timesup));
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
Intent i=new Intent(Riazi1_1.this,Riazi1_2.class);
startActivity(i);
}
}, 1000);
}
};
Count.start();
/////////////////
//// handling button1
Button btn1 = (Button) findViewById(R.id.btn_riazi1_1_1);
btn1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
Count.cancel();
TextView txtwrong = (TextView) findViewById(R.id.txt_wrong_riazi1_1);
txtwrong.setVisibility(View.VISIBLE);
Button btn2 = (Button) findViewById(R.id.btn_riazi1_1_2);
btn2.setBackgroundColor(Color.GREEN);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
Intent i=new Intent(Riazi1_1.this,Riazi1_2.class);
startActivity(i);
}
}, 1000);
}
});
}
@Override
public void onBackPressed(){
super.onBackPressed();
Count.cancel(); // error: Count cannot be resolved ///
}
}