我按照本指南发出通知,我正在 SDK-17 (minSdk 13) IntentService 类上使用此代码。
private final int NOTIFICATION_ID=6317;
Notifiaction.Builder builder;
private void startNotification(int backupNumber) {
builder=new Notification.Builder(this);
builder.setContentTitle("Backup");
builder.setContentText(getString(R.string.backup_of)+backupNumber+"app(s)");
builder.setSmallIcon(android.R.drawable.stat_sys_download);
Intent notificationIntent = new Intent(this, Launchalot.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
builder.setContentIntent(pendingIntent);
mNotificationManager =(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
startForeground(NOTIFICATION_ID, builder.build());
}
我还在其他方法中使用 builder.build() 来更新通知
当我尝试编译它时,蚂蚁找不到 build() 方法:
[javac] /home/edo/Dropbox/android_projects/AppShare/src/it/ptia/appshare/BackupService.java:44: error: cannot find symbol
[javac] mNotificationManager.notify(NOTIFICATION_ID, builder.build());
[javac] ^
[javac] symbol: method build()
[javac] location: variable builder of type Builder
[javac] /home/edo/Dropbox/android_projects/AppShare/src/it/ptia/appshare/BackupService.java:65: error: cannot find symbol
[javac] mNotificationManager.notify(NOTIFICATION_ID, builder.build());
[javac] ^
[javac] symbol: method build()
[javac] location: variable builder of type Builder
[javac] /home/edo/Dropbox/android_projects/AppShare/src/it/ptia/appshare/BackupService.java:107: error: cannot find symbol
[javac] startForeground(, builder.build());
[javac] ^
[javac] symbol: method build()
[javac] location: variable builder of type Builder
[javac] 3 errors