【发布时间】：2020-09-13 12:27:30
【问题描述】：
我的通知有问题，我想显示的目的是，如果计数器达到 0，它会通知我时间到了，但如果没问题，一切都很好，但我没有得到时间到了的通知有人可以帮忙吗？提前致谢！在此文本下方，您可以找到我卡住的代码。
package com.example.melkanalysetimer;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.NotificationCompat;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class wit extends AppCompatActivity {
private TextView countdownText;
private Button countdownButton;
private Button krat;
private Button remove;
private TextView scoreb;
private TextView money;
private TextView reset;
private CountDownTimer countDownTimer;
private long timeLeftInMilliseconds = 960000;
private boolean timerRunning;
private static final long START_TIME_IN_MILLIS = 960000;
int score = 0;
double geld = 0.00;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_wit);
countdownText = findViewById(R.id.countdown_text);
countdownButton = findViewById(R.id.countdown_button);
krat = findViewById(R.id.b_add);
scoreb = findViewById(R.id.tv_score);
remove = findViewById(R.id.b_remove);
money = findViewById(R.id.ssgeld);
reset = findViewById(R.id.button_reset);
scoreb.setText("Kratjes: "+ score);
money.setText("Geld: "+ geld);
krat.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View view) {
score++;
scoreb.setText("Kratjes: "+ score);
geld = geld + 1.5;
money.setText("Geld: "+ geld);
}
});
remove.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View view) {
if(score >= 1){
score--;
}
scoreb.setText("Kratjes: "+ score);
if(geld >= 1.5){
geld = geld - 1.5;
}
money.setText("Geld: "+ geld);
}
});
reset.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
resetTimer();
}
});
countdownButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
startStop();
}
});
updateTimer();
}
public void startStop() {
if (timerRunning) {
stopTimer();
} else {
startTimer();
}
}
public void startTimer() {
countDownTimer = new CountDownTimer(timeLeftInMilliseconds, 1000) {
@Override
public void onTick(long l) {
timeLeftInMilliseconds = l;
updateTimer();
}
@Override
public void onFinish() {
addNotification();
}
}.start();
countdownButton.setText("PAUZE");
timerRunning = true;
}
public void stopTimer() {
countDownTimer.cancel();
countdownButton.setText("START");
timerRunning = false;
}
public void resetTimer() {
timeLeftInMilliseconds = START_TIME_IN_MILLIS;
updateTimer();
}
public void addNotification() {
NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
.setSmallIcon(R.mipmap.ic_launcher_round)
.setContentTitle("TEST!!")
.setContentText("TEST!");
Intent notificationIntent = new Intent(this, wit.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
builder.setContentIntent(contentIntent);
NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
manager.notify(0, builder.build());
}
public void updateTimer() {
int minutes = (int) timeLeftInMilliseconds / 60000;
int seconds = (int) timeLeftInMilliseconds % 60000 / 1000;
String timeLeftText;
timeLeftText = "" + minutes;
timeLeftText += ":";
if (seconds < 10) timeLeftText += "0";
timeLeftText += seconds;
countdownText.setText(timeLeftText);
}
}
【问题讨论】：
标签： android android-studio notifications android-notifications countdowntimer