通知未显示android
我试图在用户选择的特定时间内显示通知。我编写了代码，它运行得很好，没有任何错误，但问题是通知没有显示在设备中。我还使用了清单中的权限。。帮我解决这个问题 CustomNotification.class通知未显示android,android,android-service,android-notifications,android-broadcast,android-alarms,Android,Android Service,Android Notifications,Android Broadcast,Android Alarms,我试图在用户选择的特定时间内显示通知。我编写了代码，它运行得很好，没有任何错误，但问题是通知没有显示在设备中。我还使用了清单中的权限。。帮我解决这个问题 CustomNotification.class public class CustomNotification extends Activity { EditText etNotificationMessage; String notificationMessage; static final int TIME
public class CustomNotification extends Activity {
EditText etNotificationMessage;
String notificationMessage;
static final int TIME_DIALOG_ID = 0;
private int pHour, pMinute, pSeconds = 0;
private PendingIntent pendingIntent;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_custom_notification);
etNotificationMessage = (EditText) findViewById(R.id.etNotificationMessage);
}
public void setNotification(View v) {
notificationMessage = etNotificationMessage.getText().toString();
Calendar c = Calendar.getInstance();
c.set(Calendar.YEAR, c.get(Calendar.YEAR));
c.set(Calendar.MONTH, c.get(Calendar.MONTH));
c.set(Calendar.DAY_OF_MONTH, c.get(Calendar.DAY_OF_MONTH));
c.set(Calendar.HOUR_OF_DAY, pHour);
c.set(Calendar.MINUTE, pMinute);
c.set(Calendar.SECOND, pSeconds);
/*Toast.makeText(
getApplicationContext(),
c.get(Calendar.YEAR) + ":" + c.get(Calendar.MONTH) + 1 + ":"
+ c.get(Calendar.DAY_OF_MONTH) + ":" + pHour + ":"
+ pMinute + ":" + pSeconds, Toast.LENGTH_SHORT).show();*/
Intent myIntent = new Intent(CustomNotification.this, MyReceiver.class);
pendingIntent = PendingIntent.getBroadcast(CustomNotification.this, 0, myIntent,0);
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC, c.getTimeInMillis(), pendingIntent);
Toast.makeText(
getApplicationContext(),"Notification time is"+
c.get(Calendar.YEAR) + ":" + c.get(Calendar.MONTH) + 1 + ":"
+ c.get(Calendar.DAY_OF_MONTH) + ":" + pHour + ":"
+ pMinute + ":" + pSeconds, Toast.LENGTH_SHORT).show();
}
@SuppressWarnings("deprecation")
public void startTime(View v) {
/** Get the current time */
final Calendar cal = Calendar.getInstance();
pHour = cal.get(Calendar.HOUR_OF_DAY);
pMinute = cal.get(Calendar.MINUTE);
pSeconds = cal.get(Calendar.SECOND);
showDialog(TIME_DIALOG_ID);
}
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case TIME_DIALOG_ID:
return new TimePickerDialog(this, mTimeSetListener, pHour, pMinute,
false);
}
return null;
}
private TimePickerDialog.OnTimeSetListener mTimeSetListener = new TimePickerDialog.OnTimeSetListener() {
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
pHour = hourOfDay;
pMinute = minute;
}
};
}
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class MyReceiver extends BroadcastReceiver
{
@Override
public void onReceive(Context context, Intent intent)
{
Intent service1 = new Intent(context, MyAlarmService.class);
context.startService(service1);
}
}
public class MyAlarmService extends Service
{
private NotificationManager mManager;
@Override
public IBinder onBind(Intent arg0)
{
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate()
{
// TODO Auto-generated method stub
super.onCreate();
}
@SuppressWarnings({ "static-access", "deprecation" })
@Override
public void onStart(Intent intent, int startId)
{
super.onStart(intent, startId);
mManager = (NotificationManager) this.getApplicationContext().getSystemService(this.getApplicationContext().NOTIFICATION_SERVICE);
Intent intent1 = new Intent(this.getApplicationContext(),CustomNotification.class);
Notification notification = new Notification(R.drawable.ic_launcher,"This is a test message!", System.currentTimeMillis());
intent1.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP| Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingNotificationIntent = PendingIntent.getActivity( this.getApplicationContext(),0, intent1,PendingIntent.FLAG_UPDATE_CURRENT);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notification.setLatestEventInfo(this.getApplicationContext(), "AlarmManagerDemo", "This is a test message!", pendingNotificationIntent);
mManager.notify(0, notification);
}
@Override
public void onDestroy()
{
// TODO Auto-generated method stub
super.onDestroy();
}
}
public class CustomNotification extends Activity {
EditText etNotificationMessage;
String notificationMessage;
static final int TIME_DIALOG_ID = 0;
private int pHour, pMinute, pSeconds = 0;
private PendingIntent pendingIntent;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_custom_notification);
etNotificationMessage = (EditText) findViewById(R.id.etNotificationMessage);
}
public void setNotification(View v) {
notificationMessage = etNotificationMessage.getText().toString();
Calendar c = Calendar.getInstance();
c.set(Calendar.YEAR, c.get(Calendar.YEAR));
c.set(Calendar.MONTH, c.get(Calendar.MONTH));
c.set(Calendar.DAY_OF_MONTH, c.get(Calendar.DAY_OF_MONTH));
c.set(Calendar.HOUR_OF_DAY, pHour);
c.set(Calendar.MINUTE, pMinute);
c.set(Calendar.SECOND, pSeconds);
/*Toast.makeText(
getApplicationContext(),
c.get(Calendar.YEAR) + ":" + c.get(Calendar.MONTH) + 1 + ":"
+ c.get(Calendar.DAY_OF_MONTH) + ":" + pHour + ":"
+ pMinute + ":" + pSeconds, Toast.LENGTH_SHORT).show();*/
Intent myIntent = new Intent(CustomNotification.this, MyReceiver.class);
pendingIntent = PendingIntent.getBroadcast(CustomNotification.this, 0, myIntent,0);
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC, c.getTimeInMillis(), pendingIntent);
Toast.makeText(
getApplicationContext(),"Notification time is"+
c.get(Calendar.YEAR) + ":" + c.get(Calendar.MONTH) + 1 + ":"
+ c.get(Calendar.DAY_OF_MONTH) + ":" + pHour + ":"
+ pMinute + ":" + pSeconds, Toast.LENGTH_SHORT).show();
}
@SuppressWarnings("deprecation")
public void startTime(View v) {
/** Get the current time */
final Calendar cal = Calendar.getInstance();
pHour = cal.get(Calendar.HOUR_OF_DAY);
pMinute = cal.get(Calendar.MINUTE);
pSeconds = cal.get(Calendar.SECOND);
showDialog(TIME_DIALOG_ID);
}
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case TIME_DIALOG_ID:
return new TimePickerDialog(this, mTimeSetListener, pHour, pMinute,
false);
}
return null;
}
private TimePickerDialog.OnTimeSetListener mTimeSetListener = new TimePickerDialog.OnTimeSetListener() {
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
pHour = hourOfDay;
pMinute = minute;
}
};
}
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class MyReceiver extends BroadcastReceiver
{
@Override
public void onReceive(Context context, Intent intent)
{
Intent service1 = new Intent(context, MyAlarmService.class);
context.startService(service1);
}
}
public class MyAlarmService extends Service
{
private NotificationManager mManager;
@Override
public IBinder onBind(Intent arg0)
{
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate()
{
// TODO Auto-generated method stub
super.onCreate();
}
@SuppressWarnings({ "static-access", "deprecation" })
@Override
public void onStart(Intent intent, int startId)
{
super.onStart(intent, startId);
mManager = (NotificationManager) this.getApplicationContext().getSystemService(this.getApplicationContext().NOTIFICATION_SERVICE);
Intent intent1 = new Intent(this.getApplicationContext(),CustomNotification.class);
Notification notification = new Notification(R.drawable.ic_launcher,"This is a test message!", System.currentTimeMillis());
intent1.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP| Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingNotificationIntent = PendingIntent.getActivity( this.getApplicationContext(),0, intent1,PendingIntent.FLAG_UPDATE_CURRENT);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notification.setLatestEventInfo(this.getApplicationContext(), "AlarmManagerDemo", "This is a test message!", pendingNotificationIntent);
mManager.notify(0, notification);
}
@Override
public void onDestroy()
{
// TODO Auto-generated method stub
super.onDestroy();
}
}
public class CustomNotification extends Activity {
EditText etNotificationMessage;
String notificationMessage;
static final int TIME_DIALOG_ID = 0;
private int pHour, pMinute, pSeconds = 0;
private PendingIntent pendingIntent;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_custom_notification);
etNotificationMessage = (EditText) findViewById(R.id.etNotificationMessage);
}
public void setNotification(View v) {
notificationMessage = etNotificationMessage.getText().toString();
Calendar c = Calendar.getInstance();
c.set(Calendar.YEAR, c.get(Calendar.YEAR));
c.set(Calendar.MONTH, c.get(Calendar.MONTH));
c.set(Calendar.DAY_OF_MONTH, c.get(Calendar.DAY_OF_MONTH));
c.set(Calendar.HOUR_OF_DAY, pHour);
c.set(Calendar.MINUTE, pMinute);
c.set(Calendar.SECOND, pSeconds);
/*Toast.makeText(
getApplicationContext(),
c.get(Calendar.YEAR) + ":" + c.get(Calendar.MONTH) + 1 + ":"
+ c.get(Calendar.DAY_OF_MONTH) + ":" + pHour + ":"
+ pMinute + ":" + pSeconds, Toast.LENGTH_SHORT).show();*/
Intent myIntent = new Intent(CustomNotification.this, MyReceiver.class);
pendingIntent = PendingIntent.getBroadcast(CustomNotification.this, 0, myIntent,0);
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC, c.getTimeInMillis(), pendingIntent);
Toast.makeText(
getApplicationContext(),"Notification time is"+
c.get(Calendar.YEAR) + ":" + c.get(Calendar.MONTH) + 1 + ":"
+ c.get(Calendar.DAY_OF_MONTH) + ":" + pHour + ":"
+ pMinute + ":" + pSeconds, Toast.LENGTH_SHORT).show();
}
@SuppressWarnings("deprecation")
public void startTime(View v) {
/** Get the current time */
final Calendar cal = Calendar.getInstance();
pHour = cal.get(Calendar.HOUR_OF_DAY);
pMinute = cal.get(Calendar.MINUTE);
pSeconds = cal.get(Calendar.SECOND);
showDialog(TIME_DIALOG_ID);
}
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case TIME_DIALOG_ID:
return new TimePickerDialog(this, mTimeSetListener, pHour, pMinute,
false);
}
return null;
}
private TimePickerDialog.OnTimeSetListener mTimeSetListener = new TimePickerDialog.OnTimeSetListener() {
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
pHour = hourOfDay;
pMinute = minute;
}
};
}
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class MyReceiver extends BroadcastReceiver
{
@Override
public void onReceive(Context context, Intent intent)
{
Intent service1 = new Intent(context, MyAlarmService.class);
context.startService(service1);
}
}
public class MyAlarmService extends Service
{
private NotificationManager mManager;
@Override
public IBinder onBind(Intent arg0)
{
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate()
{
// TODO Auto-generated method stub
super.onCreate();
}
@SuppressWarnings({ "static-access", "deprecation" })
@Override
public void onStart(Intent intent, int startId)
{
super.onStart(intent, startId);
mManager = (NotificationManager) this.getApplicationContext().getSystemService(this.getApplicationContext().NOTIFICATION_SERVICE);
Intent intent1 = new Intent(this.getApplicationContext(),CustomNotification.class);
Notification notification = new Notification(R.drawable.ic_launcher,"This is a test message!", System.currentTimeMillis());
intent1.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP| Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingNotificationIntent = PendingIntent.getActivity( this.getApplicationContext(),0, intent1,PendingIntent.FLAG_UPDATE_CURRENT);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notification.setLatestEventInfo(this.getApplicationContext(), "AlarmManagerDemo", "This is a test message!", pendingNotificationIntent);
mManager.notify(0, notification);
}
@Override
public void onDestroy()
{
// TODO Auto-generated method stub
super.onDestroy();
}
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.om.timetracker"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="12"
android:targetSdkVersion="21" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="com.android.alarm.permission.SET_ALARM" />
<application
android:allowBackup="true"
android:icon="@drawable/icon"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".WelcomeScreen"
android:label="@string/app_name"
android:screenOrientation="portrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.om.notifications.CustomNotification" >
</activity>
<service
android:name=".MyAlarmService"
android:enabled="true" />
<receiver android:name=".MyReceiver" />
</application>
</manifest>
NotificationCompat.Builder mBuild = new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.ic_launcher).setContentTitle("Notification")
.setContentText("New notification Received");
Intent resultIntent = new Intent(context, CustomNotification .class);
resultIntent.setAction("FROMNOTIFICATION");
PendingIntent resultPendingIntent = PendingIntent.getActivity(context, 0,
resultIntent, PendingIntent.FLAG_UPDATE_CURRENT);
mBuild.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager = (NotificationManager) context
.getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(0, mBuild.build());
mBuild.setAutoCancel(true);
在你通过用户给予时间的地方，我的意思是在什么时候通知显示广播接收器何时会收到推送通知，那么只有你才应该显示通知。试试这个它会解决你的问题[Link][1][1]：检查这个链接，它可能有助于解决你的问题，只需投票赞成答案