我目前正在努力寻找为什么我的闹钟有时会按预期运行而其他时候却无法按预期运行的原因。 当我将闹钟设置了几分钟后，它通常可以正常工作，但是当我将闹钟设置为从晚上10点到凌晨6点时，它通常会在大约10秒钟内开始响起。每当我将闹钟从pm设置为am时，反之亦然，则发生错误，并且闹钟响起。
我知道很多代码，但在这一点上我非常绝望。 任何帮助将不胜感激。
清单
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.insomniafinal">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".Register" android:label="@string/app_name" android:theme="@style/AppTheme.NoActionBar"></activity>
<activity android:name=".MainActivity" android:theme="@style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data
android:name="preloaded_fonts"
android:resource="@array/preloaded_fonts" />
<receiver android:name=".Alarm_Receiver" />
<service android:name=".RingtonePlayingService"
android:enabled="true">
</service>
</application>
</manifest>
警报接收器
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
public class Alarm_Receiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// fetch extra strings from the intent
// tells the app whether the user pressed the alarm on button or the alarm off button
String get_your_string = intent.getExtras().getString("extra");
// fetch the extra longs from the intent
// tells the app which value the user picked from the drop down menu/spinner
Integer get_your_whale_choice = intent.getExtras().getInt("whale_choice");
// create an intent to the ringtone service
Intent service_intent = new Intent(context, RingtonePlayingService.class);
// pass the extra string from Receiver to the Ringtone Playing Service
service_intent.putExtra("extra", get_your_string);
// pass the extra integer from the Receiver to the Ringtone Playing Service
service_intent.putExtra("whale_choice", get_your_whale_choice);
// start the ringtone service
context.startService(service_intent);
}
}
RingtonePlayingService
import android.annotation.TargetApi;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Build;
import android.os.IBinder;
import android.util.Log;
import java.util.Random;
public class RingtonePlayingService extends Service {
MediaPlayer media_song;
int startId;
boolean isRunning;
@Override
public IBinder onBind(Intent intent) {
return null;
}
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// fetch the extra string from the alarm on/alarm off values
String state = intent.getExtras().getString("extra");
// fetch the whale choice integer values
Integer whale_sound_choice = intent.getExtras().getInt("whale_choice");
// notification
// set up the notification service
NotificationManager notify_manager = (NotificationManager)
getSystemService(NOTIFICATION_SERVICE);
// set up an intent that goes to the Main Activity
Intent intent_main_activity = new Intent(this.getApplicationContext(), MainActivity.class);
// set up a pending intent
PendingIntent pending_intent_main_activity = PendingIntent.getActivity(this, 0,
intent_main_activity, 0);
// make the notification parameters
Notification notification_popup = new Notification.Builder(this)
.setContentTitle("An alarm is going off!")
.setContentText("Click me!")
.setSmallIcon(R.drawable.ic_action_call)
.setContentIntent(pending_intent_main_activity)
.setAutoCancel(true)
.build();
// this converts the extra strings from the intent
// to start IDs, values 0 or 1
assert state != null;
switch (state) {
case "alarm on":
startId = 1;
break;
case "alarm off":
startId = 0;
Log.e("Start ID is ", state);
break;
default:
startId = 0;
break;
}
// if else statements
// if there is no music playing, and the user pressed "alarm on"
// music should start playing
if (!this.isRunning && startId == 1) {
Log.e("there is no music, ", "and you want start");
this.isRunning = true;
this.startId = 0;
// set up the start command for the notification
notify_manager.notify(0, notification_popup);
else if (this.isRunning && startId == 0) {
Log.e("there is music, ", "and you want end");
// stop the ringtone
media_song.stop();
media_song.reset();
this.isRunning = false;
this.startId = 0;
}
// these are if the user presses random buttons
// just to bug-proof the app
// if there is no music playing, and the user pressed "alarm off"
// do nothing
else if (!this.isRunning && startId == 0) {
Log.e("there is no music, ", "and you want end");
this.isRunning = false;
this.startId = 0;
}
// if there is music playing and the user pressed "alarm on"
// do nothing
else if (this.isRunning && startId == 1) {
Log.e("there is music, ", "and you want start");
this.isRunning = true;
this.startId = 1;
}
// can't think of anything else, just to catch the odd event
else {
Log.e("else ", "somehow you reached this");
}
return START_NOT_STICKY;
}
@Override
public void onDestroy() {
// Tell the user we stopped.
Log.e("on Destroy called", "ta da");
super.onDestroy();
this.isRunning = false;
}
主要活动
public class MainActivity extends AppCompatActivity implements AdapterView.OnItemSelectedListener {
AlarmManager alarm_manager;
TimePicker alarm_timepicker;
TextView update_text;
Context context;
PendingIntent pending_intent;
int choose_whale_sound;
long startTime = 0;
long start = 0;
float numberOfHours = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
this.context = this;
}alarm_manager = (AlarmManager) getSystemService(ALARM_SERVICE);
//initialize our timepicker
alarm_timepicker = (TimePicker) findViewById(R.id.timePicker);
//initialize our text update box
update_text = (TextView) findViewById(R.id.update_text);
// create an instance of a calendar
final Calendar calendar = Calendar.getInstance();
// create an intent to the Alarm Receiver class
final Intent my_intent = new Intent(this.context, Alarm_Receiver.class);
// create the spinner in the main UI
Spinner spinner = (Spinner) findViewById(R.id.richard_spinner);
// Create an ArrayAdapter using the string array and a default spinner layout
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
R.array.whale_array, android.R.layout.simple_spinner_item);
// Specify the layout to use when the list of choices appears
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// Apply the adapter to the spinner
spinner.setAdapter(adapter);
// Set an onclick listener to the onItemSelected method
spinner.setOnItemSelectedListener(this);
// initialize start button
Button alarm_on = (Button) findViewById(R.id.alarm_on);
// create an onClick listener to start the alarm
alarm_on.setOnClickListener(new View.OnClickListener() {
//@TargetApi(Build.VERSION_CODES.M)
@Override
public void onClick(View v) {
// setting calendar instance with the hour and minute that we picked
// on the time picker
calendar.set(Calendar.HOUR_OF_DAY, alarm_timepicker.getHour());
calendar.set(Calendar.MINUTE, alarm_timepicker.getMinute());
// get the int values of the hour and minute
int hour = alarm_timepicker.getHour();
int minute = alarm_timepicker.getMinute();
// convert the int values to strings
String hour_string = String.valueOf(hour);
String minute_string = String.valueOf(minute);
// convert 24-hour time to 12-hour time
if (hour > 12) {
hour_string = String.valueOf(hour - 12);
}
if (minute < 10) {
//10:7 --> 10:07
minute_string = "0" + String.valueOf(minute);
}
// method that changes the update text Textbox
set_alarm_text("Alarm set to: " + hour_string + ":" + minute_string);
// put in extra string into my_intent
// tells the clock that you pressed the "alarm on" button
my_intent.putExtra("extra", "alarm on");
// put in an extra int into my_intent
// tells the clock that you want a certain value from the drop-down menu/spinner
my_intent.putExtra("whale_choice", choose_whale_sound);
Log.e("The whale id is" , String.valueOf(choose_whale_sound));
// create a pending intent that delays the intent
// until the specified calendar time
pending_intent = PendingIntent.getBroadcast(MainActivity.this, 0,
my_intent, PendingIntent.FLAG_UPDATE_CURRENT);
// set the alarm manager
alarm_manager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
pending_intent);
start = System.currentTimeMillis();
}
});
// initialize the stop button
Button alarm_off = (Button) findViewById(R.id.alarm_off);
// create an onClick listener to stop the alarm or undo an alarm set
alarm_off.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// method that changes the update text Textbox
set_alarm_text("Alarm off!");
// cancel the alarm
alarm_manager.cancel(pending_intent);
// put extra string into my_intent
// tells the clock that you pressed the "alarm off" button
my_intent.putExtra("extra", "alarm off");
// also put an extra int into the alarm off section
// to prevent crashes in a Null Pointer Exception
my_intent.putExtra("whale_choice", choose_whale_sound);
//Get duration of the alarm.
long end = System.currentTimeMillis();
long delta = end - start;
int elapsedSeconds = (int)delta / 1000;
int mins = elapsedSeconds/60;
float hours = mins/60;
documentReference.update("sleep", FieldValue.arrayUnion(hours));
// stop the ringtone
sendBroadcast(my_intent);
}
});
}
private void set_alarm_text(String output) {
update_text.setText(output);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
// An item was selected. You can retrieve the selected item using
// parent.getItemAtPosition(pos)
// outputting whatever id the user has selected
//Toast.makeText(parent.getContext(), "the spinner item is "
// + id, Toast.LENGTH_SHORT).show();
choose_whale_sound = (int) id;
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// Another interface callback
}