我有这个警报,我正在尝试制作一个BroadcastReceiver,用于在设备重启时重新创建警报。问题是我不知道将什么放入BroadcastReceiver。
这是用于在重启设备时重新创建警报的BroadcastReceiver
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class AlarmSetter extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
//I don't know what to put here
// Do your work related to alarm manager
}
}
这是其他类
AlarmActivity Class
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.TextView;
import android.widget.TimePicker;
import android.widget.ToggleButton;
import java.util.Calendar;
import java.util.concurrent.TimeUnit;
public class AlarmActivity extends Activity {
AlarmManager alarmManager;
private PendingIntent pendingIntent;
private TimePicker alarmTimePicker;
private static AlarmActivity inst;
private TextView alarmTextView;
public static AlarmActivity instance() {
return inst;
}
@Override
public void onStart() {
super.onStart();
inst = this;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_alarm);
alarmTimePicker = (TimePicker) findViewById(R.id.alarmTimePicker);
alarmTextView = (TextView) findViewById(R.id.alarmText);
ToggleButton alarmToggle = (ToggleButton) findViewById(R.id.alarmToggle);
alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
}
public void onToggleClicked(View view) {
if (((ToggleButton) view).isChecked()) {
Log.d("MyActivity", "Alarm On");
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, alarmTimePicker.getCurrentHour());
calendar.set(Calendar.MINUTE, alarmTimePicker.getCurrentMinute());
calendar.set(Calendar.SECOND,0);
calendar.set(Calendar.MILLISECOND,0);
long time = calendar.getTimeInMillis();
if(time < System.currentTimeMillis()) calendar.setTimeInMillis(time + TimeUnit.DAYS.toMillis(1));
Intent myIntent = new Intent(AlarmActivity.this, AlarmReceiver.class);
pendingIntent = PendingIntent.getBroadcast(AlarmActivity.this, 0, myIntent, 0);
alarmManager.set(AlarmManager.RTC, calendar.getTimeInMillis(), pendingIntent);
} else {
alarmManager.cancel(pendingIntent);
setAlarmText("");
Log.d("MyActivity", "Alarm Off");
}
}
public void setAlarmText(String alarmText) {
alarmTextView.setText(alarmText);
}
}
AlarmReceiver Class
import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.media.MediaPlayer;
import android.media.RingtoneManager;
import android.net.Uri;
import android.support.v4.content.WakefulBroadcastReceiver;
import android.view.WindowManager;
public class AlarmReceiver extends WakefulBroadcastReceiver {
@Override
public void onReceive(final Context context, Intent intent) {
//this will update the UI with message
AlarmActivity inst = AlarmActivity.instance();
inst.setAlarmText("Alarm! Wake up! Wake up!");
//this will sound the alarm tone
//this will sound the alarm once, if you wish to
//raise alarm in loop continuously then use MediaPlayer and setLooping(true)
Uri alarmUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
if (alarmUri == null) {
alarmUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
}
//this will send a notification message
ComponentName comp = new ComponentName(context.getPackageName(),
AlarmService.class.getName());
startWakefulService(context, (intent.setComponent(comp)));
setResultCode(Activity.RESULT_OK);
intent.setClass( AlarmActivity.instance(), WelcomePage.class);
AlarmActivity.instance().startActivity(intent);
}
}
AlarmService类
import android.app.IntentService;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.NotificationCompat;
import android.util.Log;
public class AlarmService extends IntentService {
private NotificationManager alarmNotificationManager;
public AlarmService() {
super("AlarmService");
}
@Override
public void onHandleIntent(Intent intent) {
sendNotification("Wake Up! Wake Up!");
}
private void sendNotification(String msg) {
Log.d("AlarmService", "Preparing to send notification...: " + msg);
alarmNotificationManager = (NotificationManager) this
.getSystemService(Context.NOTIFICATION_SERVICE);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, AlarmActivity.class), 0);
NotificationCompat.Builder alamNotificationBuilder = new NotificationCompat.Builder(
this).setContentTitle("Alarm").setSmallIcon(R.drawable.icon)
.setStyle(new NotificationCompat.BigTextStyle().bigText(msg))
.setContentText(msg);
alamNotificationBuilder.setContentIntent(contentIntent);
alarmNotificationManager.notify(1, alamNotificationBuilder.build());
Log.d("AlarmService", "Notification sent.");
}
}
我已在AndroidManifest.xml中插入此权限
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />