Java 服务活动在后台崩溃
我正在开发一个简单的服务应用程序，它每1秒递增一个计数器，每10秒显示一次通知。我使用了thread，所以当我关闭我的应用程序时，服务会在后台运行 问题-一切正常，但当我启动计数器后立即按下“后退”按钮时，单击按钮。我的应用程序崩溃了。谁能告诉我有什么问题吗？谢谢Java 服务活动在后台崩溃,java,android,xml,android-studio,service,Java,Android,Xml,Android Studio,Service,我正在开发一个简单的服务应用程序，它每1秒递增一个计数器，每10秒显示一次通知。我使用了thread，所以当我关闭我的应用程序时，服务会在后台运行 问题-一切正常，但当我启动计数器后立即按下“后退”按钮时，单击按钮。我的应用程序崩溃了。谁能告诉我有什么问题吗？谢谢 public class MyService extends Service { private static final int NOTIFICATION_ID = 5453; String s;
public class MyService extends Service {
private static final int NOTIFICATION_ID = 5453;
String s;
boolean flag=true;
int cooo;
int m;
int n=0;
private void triggerNotification(final int text){ //Notification Triggering Function
Bitmap bm = BitmapFactory.decodeResource(getResources(), R.drawable.ic_action_noti);
Intent intent = new Intent(this, ServiceActivity.class);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addParentStack(ServiceActivity.class); // Creates a virtual stack so that when back key is pressed main activity will be displayed
stackBuilder.addNextIntent(intent);
PendingIntent pendingIntent =
stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT
);
Uri soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
CharSequence tickerText="Current Counter Value :"+text;
Notification notification = new Notification.Builder(this)
.setLargeIcon(bm)
.setSmallIcon(R.drawable.ic_action_noti) // Setting Notification Icon
.setContentTitle(getString(R.string.notification)) // Setting Title of Notification
.setAutoCancel(true) // Makes this notification automatically dismissed when the user touches it
.setPriority(Notification.PRIORITY_MAX) // Setting priority to Max
.setContentIntent(pendingIntent)
.setContentText(tickerText)
.setLights(0xFF0000FF, 100,3000)
.setSound(soundUri)
.build();
notification.defaults |= Notification.DEFAULT_VIBRATE;
notification.defaults |= Notification.DEFAULT_SOUND;
NotificationManager notificationManager = //Notification Manager
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(NOTIFICATION_ID, notification);
// Log.d(TAG, "Notification sent successfully.");
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
} //Default function of service class
public int onStartCommand(Intent intent, int flags, int startID){ //Function recieving intent from startService
cooo=intent.getIntExtra("cont", 0);
s=Integer.toString(cooo);
Thread thread=new Thread(new Runnable() {
@Override
public void run() { //Thread Initialized
while(flag){
try{ Log.d("The counter value is:", s + " ");
m=Integer.parseInt(s);
m++;
n++;
s=Integer.toString(m);
if(n%10==0){
Log.d("Notification Triggered", "Congrats!");
triggerNotification(m);
}
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
});
thread.start(); //Thread Started
return super.onStartCommand(intent,flags,startID); //sending intent again
}
public void onDestroy(){ //function call on stop button pressed
super.onDestroy();
flag=false;
Log.d("Notification Triggered","on stop Button");
triggerNotification(m);
//Toast.makeText(getApplicationContext(),"stopped",Toast.LENGTH_LONG).show();
}
}
请粘贴崩溃日志。您是否在清单文件中声明了您的服务@codingrocks@KiranKumar是的，我已经在那里定义了我的服务类。问题是，如果我立即按下手机上的“后退”按钮并关闭应用程序，线程将在几秒钟后停止，否则它将正常工作。有人能帮我吗？请粘贴启动服务的代码。请粘贴崩溃日志。您是否在清单文件中声明了您的服务@codingrocks@KiranKumar是的，我已经在那里定义了我的服务类。问题是，如果我立即按下手机上的“后退”按钮并关闭应用程序，线程将在几秒钟后停止，否则运行正常。有人能帮我吗？请将代码粘贴到启动服务的位置。