我正在使用倒数计时器并将其设置为可以由用户设置。当计时器到达00:00时，它应该说“完成！”。出于某种原因，我得到了“完成！”我启动计时器后立即。在暂停和恢复后，它显示我的计数器倒计时，但我不太确定客户会对此感到很冷静。有谁能说出我为什么遇到这个问题？谢谢。
package score.keeper.basketball;
import android.app.Activity;
import android.app.Dialog;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.view.View;
import android.view.View.OnLongClickListener;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.AdapterView.OnItemSelectedListener;
public class Score extends Activity implements AdapterView.OnItemSelectedListener {
private Button Button01;
private Button Button02;
private Button Button03;
private Button Button04;
private TextView TextView01;
private TextView TextView02;
private TextView TextView03;
private TextView TextView06;
private Spinner Spinner01;
private Spinner Spinner02;
private TextView Team01;
private TextView Team02;
TextView timeDisplay;
int state = 0;
int length;
long startTime = 0;
long currentTime = 0;
long timeElapsed = 0;
long timeRemaining = 0;
long prevTimeRemaining = 0;
Button control;
MyCount counter;
String[] goal={"Three", "Foul", "Two"};
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
Button01 = (Button) findViewById(R.id.Button01);
Button02 = (Button) findViewById(R.id.Button02);
Button03 = (Button) findViewById(R.id.Button03);
Button04 = (Button) findViewById(R.id.Button04);
TextView01 = (TextView) findViewById(R.id.TextView01);
TextView02 = (TextView) findViewById(R.id.TextView02);
TextView03 = (TextView) findViewById(R.id.TextView03);
TextView06 = (TextView) findViewById(R.id.TextView06);
Team01 = (TextView) findViewById(R.id.TextView04);
Team02 = (TextView) findViewById(R.id.TextView05);
Team01.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final Dialog dialog = new Dialog(Score.this);
dialog.setContentView(R.layout.setteamname);
dialog.setTitle("Team Name");
dialog.setCancelable(true);
final EditText teamName = (EditText) dialog.findViewById(R.id.teamName);
Button btn = (Button) dialog.findViewById(R.id.setText);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String teamName2 = teamName.getText().toString();
Team01.setText("" + teamName2);
dialog.dismiss();
}
});
dialog.show();
}});
Team02.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final Dialog dialog = new Dialog(Score.this);
dialog.setContentView(R.layout.setteamname);
dialog.setTitle("Team Name");
dialog.setCancelable(true);
final EditText teamName = (EditText) dialog.findViewById(R.id.teamName);
Button btn = (Button) dialog.findViewById(R.id.setText);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String teamName3 = teamName.getText().toString();
Team02.setText("" + teamName3);
dialog.dismiss();
}
});
dialog.show();
}});
Spinner spin = (Spinner) findViewById(R.id.Spinner01);
spin.setOnItemSelectedListener((OnItemSelectedListener) this);
ArrayAdapter<String> aa=new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, goal);
aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spin.setAdapter(aa);
Button01.setOnLongClickListener(subtractLeft);
Button02.setOnClickListener(new Button.OnClickListener() {public void onClick(View v){my_func1();}});
Button03.setOnLongClickListener(subtractRight);
Button04.setOnClickListener(new Button.OnClickListener() {public void onClick(View v){my_func2();}});
timeDisplay = (TextView) findViewById(R.id.timer);
timeDisplay.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
final Dialog dialog = new Dialog(Score.this);
dialog.setContentView(R.layout.custom_dialog);
dialog.setTitle("Set Time");
dialog.setCancelable(true);
final EditText min = (EditText) dialog.findViewById(R.id.min);
final EditText sec = (EditText) dialog.findViewById(R.id.sec);
Button btn = (Button)dialog.findViewById(R.id.positive);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v){
int min2 = Integer.parseInt(min.getText().toString());
int sec2 = Integer.parseInt(sec.getText().toString());
{length = (((min2 * 60) + sec2) * 1000);
dialog.dismiss();}
}});
dialog.show();}
});
counter = new MyCount(length, 100);
control = (Button) findViewById(R.id.control);
}
public void control(View view) {
switch (state) {
case 0:
startTime = System.currentTimeMillis();
counter.start();
control.setText(R.string.pause);
state = 1;
break;
case 1:
// pause
currentTime = System.currentTimeMillis();
timeElapsed = currentTime - startTime;
if (prevTimeRemaining == 0)
timeRemaining = length - timeElapsed;
else
timeRemaining = prevTimeRemaining - timeElapsed;
counter.cancel();
timeDisplay.setText(formatTime(timeRemaining));
control.setText(R.string.resume);
prevTimeRemaining = timeRemaining;
// resume
counter = new MyCount(timeRemaining, 100);
state = 0;
break;
case 2:
prevTimeRemaining = 0;
counter = new MyCount(length, 100);
control.setText(R.string.start);
timeDisplay.setText(R.string.timer);
state = 0;
}
}
public class MyCount extends CountDownTimer {
public MyCount(long millisInFuture, long countDownInterval) {
super(millisInFuture, countDownInterval);
}
public void onFinish() {
timeDisplay.setText("done!");
state = 2;
control.setText(R.string.restart);
}
public void onTick(long millisUntilFinished) {
timeDisplay.setText(formatTime(millisUntilFinished));
}
}
public String formatTime(long millis) {
String output = "00:00";
long seconds = millis / 1000;
long minutes = seconds / 60;
// long hours = minutes / 60;
seconds = seconds % 60;
minutes = minutes % 60;
// hours = hours % 60;
String secondsD = String.valueOf(seconds);
String minutesD = String.valueOf(minutes);
// String hoursD = String.valueOf(hours);
if (seconds < 10)
secondsD = "0" + seconds;
if (minutes < 10)
minutesD = "0" + minutes;
// if (hours < 10)
// hoursD = "0" + hours;
output = minutesD + " : " + secondsD;
return output;
}
public void setSpinner02(Spinner spinner02) {
Spinner02 = spinner02;
}
public Spinner getSpinner02() {
return Spinner02;
}
public void setSpinner01(Spinner spinner01) {
Spinner01 = spinner01;
}
public Spinner getSpinner01() {
return Spinner01;
}
public void onItemSelected(AdapterView<?> parent, View v, int position, long id)
{
if ("Three".equals(goal[position]))
{TextView03.setText("3");}
if ("Foul".equals(goal[position]))
{TextView03.setText("1");}
if ("Two".equals(goal[position]))
{TextView03.setText("2");}
}
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
TextView03.setText("2");
TextView06.setText("2");
}
void my_func1() {
int scoreLeft;
int addOne;
int scoreLeftTotal;
addOne = Integer.parseInt(TextView03.getText().toString());
scoreLeft = Integer.parseInt(TextView01.getText().toString());
scoreLeftTotal = (scoreLeft + addOne);
TextView01.setText("" + scoreLeftTotal);
}
void my_func2() {
int scoreRight = Integer.parseInt(TextView02.getText().toString());
int addOne = Integer.parseInt(TextView03.getText().toString());
{int scoreRightTotal = (scoreRight + addOne);
TextView02.setText("" + scoreRightTotal);
}
}
private OnLongClickListener subtractLeft = new OnLongClickListener() {
public boolean onLongClick(View v) {
int scoreLeft = Integer.parseInt(TextView01.getText().toString());
int addOne = Integer.parseInt(TextView03.getText().toString());
{int scoreLeftTotal = (scoreLeft - addOne);
TextView01.setText("" + scoreLeftTotal);
}
return true;
}
};
private OnLongClickListener subtractRight = new OnLongClickListener() {
public boolean onLongClick(View v) {
int scoreRight = Integer.parseInt(TextView02.getText().toString());
int addOne = Integer.parseInt(TextView03.getText().toString());
{int scoreLeftTotal = (scoreRight - addOne);
TextView02.setText("" + scoreLeftTotal);
}
return true;
}
};
public void OnClick(View view) {
if (view==Team01){
Dialog dialog = new Dialog(Score.this);
dialog.setContentView(R.layout.setteamname);
dialog.setTitle("Team Name");
dialog.setCancelable(true);
final EditText teamName = (EditText) dialog.findViewById(R.id.teamName);
teamName.setText(R.id.TextView04);
Button btn = (Button)dialog.findViewById(R.id.setText);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
teamName.getText().toString();
Team01.setText("" + teamName);
}
});
dialog.show();}
};
}
答案 0 :(得分：0)
切断初始化代码会让我感到困惑，因为它太长时间没有注意到你的大括号没有平衡......
看起来你正在创建你的计数器并在两个onclick函数之外初始化它。在这个阶段，长度为零。
当您单击开始按钮时，长度设置为有效时间，但计时器未重新初始化，因此它以先前设置的零值开始，并立即触发onFinish。
按暂停时，会计算正确的剩余时间，然后将其传递到您在恢复时创建的新计数器，然后继续正常倒计时。
在counter = new MyCount(length, 100);之后直接移动dialog.show();}应确保在单击设置计时器按钮时初始化计数器并解决问题。