Android 从多任务面板删除应用程序时取消通知
我管理来自我的应用程序(而非服务)的持续通知Android 从多任务面板删除应用程序时取消通知,android,android-notifications,Android,Android Notifications,我管理来自我的应用程序(而非服务)的持续通知 var notificationManager = (NotificationManager)GetSystemService(NotificationService); notificationManager.Cancel(0); 当我使用“结束”按钮从任务管理器中终止应用程序时,通知消失 var notificationManager = (NotificationManager)GetSystemServi
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
当我使用“结束”按钮从任务管理器中终止应用程序时,通知消失
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
当我从多任务窗格中删除应用程序时,应用程序将被终止,但通知仍保留
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
我的问题是:
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
- 如何捕获此事件以清除通知
- 当应用程序从多任务窗格中删除时会发生什么?应用程序已销毁,但进程仍处于活动状态?这正常吗
作为更新:
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
所有my activities都使用以下方法扩展MyActivity类(扩展Activity):
@Override protected void onCreate(Bundle state) {
super.onCreate(state);
((MyApplication) getApplication()).onActivityCreate(this, state);
}
@Override protected void onDestroy() {
super.onDestroy();
((MyApplication) getApplication()).onActivityDestroy(this);
}
private List<Activity> activities = new ArrayList<Activity>();
protected final void onActivityCreate(Activity activity, Bundle state) {
if(activities.isEmpty() && state == null) {
onStart();
}
activities.add(activity);
}
protected final void onActivityDestroy(Activity activity) {
activities.remove(activity);
if(activities.isEmpty() && activity.isFinishing()) {
onExit();
}
}
protected void onStart() {
// some code
}
protected void onExit() {
// some code
notificationManager.cancel(NOTIFICATION_ID);
}
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
我的应用程序使用以下方法扩展了MyApplication类(它扩展了应用程序):
@Override protected void onCreate(Bundle state) {
super.onCreate(state);
((MyApplication) getApplication()).onActivityCreate(this, state);
}
@Override protected void onDestroy() {
super.onDestroy();
((MyApplication) getApplication()).onActivityDestroy(this);
}
private List<Activity> activities = new ArrayList<Activity>();
protected final void onActivityCreate(Activity activity, Bundle state) {
if(activities.isEmpty() && state == null) {
onStart();
}
activities.add(activity);
}
protected final void onActivityDestroy(Activity activity) {
activities.remove(activity);
if(activities.isEmpty() && activity.isFinishing()) {
onExit();
}
}
protected void onStart() {
// some code
}
protected void onExit() {
// some code
notificationManager.cancel(NOTIFICATION_ID);
}
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
少量日志两次出现一次,而不是全部(例如:13/100)
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
所以,我知道从多任务面板中删除应用程序会强制终止应用程序,而不必等待关闭方法结束并正确完成。。。但为什么不处理呢
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
如何强制正确终止?在主应用程序被终止时终止通知。
ServiceConnection mConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className,
IBinder binder) {
((KillBinder) binder).service.startService(new Intent(
MainActivity.this, KillNotificationsService.class));
Notification notification = new Notification(
R.drawable.ic_launcher, "Text",
System.currentTimeMillis());
Intent notificationIntent = new Intent(MainActivity.this,
Place.class);
PendingIntent contentIntent = PendingIntent.getActivity(
MainActivity.this, 0, notificationIntent, 0);
notification.setLatestEventInfo(getApplicationContext(),
"Text", "Text", contentIntent);
NotificationManager mNM = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
mNM.notify(KillNotificationsService.NOTIFICATION_ID,
notification);
}
public void onServiceDisconnected(ComponentName className) {
}
};
bindService(new Intent(MainActivity.this,
KillNotificationsService.class), mConnection,
Context.BIND_AUTO_CREATE);
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
由于您的通知和应用程序在不同的线程中处理,因此通过MultitaskManager终止应用程序不会终止您的通知。正如您已经正确调查过的那样,终止应用程序甚至不一定会导致onExit()回调
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
那么解决方案是什么?
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
你可以从你的活动开始一项服务。一个特殊的服务是:如果应用程序进程由于某种原因被终止,它们会自动重启。因此,您可以通过取消重启时的通知来重用自动重启
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
步骤1创建一个终止服务
简单的一个。它只是在创建时终止了一个通知,并有他的特殊活页夹
public class KillNotificationsService extends Service {
public class KillBinder extends Binder {
public final Service service;
public KillBinder(Service service) {
this.service = service;
}
}
public static int NOTIFICATION_ID = 666;
private NotificationManager mNM;
private final IBinder mBinder = new KillBinder(this);
@Override
public IBinder onBind(Intent intent) {
return mBinder;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
return Service.START_STICKY;
}
@Override
public void onCreate() {
mNM = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
mNM.cancel(NOTIFICATION_ID);
}
}
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
步骤2:将其添加到您的清单中:
将其添加到标签之间的某个位置
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
重新启动服务可能需要一点时间(1-5秒),但它最终会启动并终止通知。您应该创建类扩展应用程序并注册活动回调,当您从多任务面板关闭应用程序时,会调用该回调
public class MyApplication extends Application {
@Override
public void onCreate() {
super.onCreate();
registerActivityLifecycleCallbacks(new ActivityLifecycleCallbacks() {
@Override
public void onActivityCreated(Activity activity, Bundle bundle) {
}
@Override
public void onActivityStarted(Activity activity) {
}
@Override
public void onActivityResumed(Activity activity) {
}
@Override
public void onActivityPaused(Activity activity) {
}
@Override
public void onActivityStopped(Activity activity) {
}
@Override
public void onActivitySaveInstanceState(Activity activity, Bundle bundle) {
}
@Override
public void onActivityDestroyed(Activity activity) {
if (/*check is all your activities onStop state*/) {
NotificationManager mNM = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
mNM.cancel(R.id.key_notification_id);
}
}
});
}
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
}冰激凌三明治(API-14)中引入了将应用程序从最近的应用程序列表中删除的功能
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
对于相同的Android版本,我们在“Android.app.Service”中收到了一个特殊的方法“onTaskRemoved()。当应用程序从最近的应用程序列表中删除时,将调用该函数
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
所以,如果您正在运行任何服务,只需重写“onTaskRemoved()”方法即可满足您的需求
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
例如:
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
或者简单地编写并启动特殊服务来管理相同的问题。我自己也有同样的问题,但我设法解决了它
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
这就是我所做的
public class Sample extends Activity {
private static final String APP_NOTIFICATION_TAG = "sample";
private static final int NOTIFICATION_ID = 24;
private NotificationManager notificationManager;
private Notification appNotification;
private AppFinishedExecutingListener appFinishedExecutingListener;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// set the layout and other stuff goes here
appFinishedExecutingListener.execute(this);
new Thread() {
@Override
public void run() {
try {
appFinishedExecutingListener.get();
handler.post(new Runnable() {
@Override
public void run() {
destroyActivityComponent();
}
});
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
}
}
}.start();
setupNotification();
}
/*
* Setup this app
*/
private void setupNotification() {
Intent intent = new Intent(getApplicationContext(), MainActivity.class);
// make sure when the user click the notification, this will make sure it will resume the app
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
// define the action should be performed if the user click the notification i.e. resume our app activity
PendingIntent pIntent = PendingIntent.getActivity(getApplicationContext(), (int)System.currentTimeMillis(), intent, 0);
// setup the look for this app on a notification panel
appNotification = new NotificationCompat.Builder(this)
.setContentTitle(getString(R.string.app_name))
.setContentText("Currently listening to kiribati radio")
.setSmallIcon(R.drawable.ic_notification_logo)
.setContentIntent(pIntent)
.setAutoCancel(true)
.setOngoing(true).build()
;
notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
}
/*
* Will add app notification when this activity is paused so the user can
* quickly access it or resume this activity easily
*/
private void addAppToNotificationP() {
notificationManager.notify(APP_NOTIFICATION_TAG, NOTIFICATION_ID, appNotification);
}
/*
* This will remove the notification if this activity is resumed
*/
private void removeAppFromNotificationP() {
notificationManager.cancel(APP_NOTIFICATION_TAG,NOTIFICATION_ID);
}
@Override
protected void onPause() {
super.onPause();
addAppToNotificationP();
}
@Override
protected void onResume() {
super.onResume();
removeAppFromNotificationP();
}
private void destroyActivityCompletely() {
onResume();
finish();
}
}
public class AppFinishedExecutingListener extends AsyncTask<MainActivity, Void, Boolean> {
private MainActivity main_activity;
@Override
protected Boolean doInBackground(MainActivity... params) {
main_activity = params[0];
while(!main_activity.isFinishing()) {
try {
Thread.sleep(100);
//Log.i(main_activity.TAG,"listening");
} catch (InterruptedException e) {
e.printStackTrace();
}
}
//main_activity.finish();
return true;
}
}
var notificationManager = (NotificationManager)GetSystemService(NotificationService);
notificationManager.Cancel(0);
公共类示例扩展活动{
私有静态最终字符串APP_NOTIFICATION_TAG=“sample”;
私有静态最终整数通知_ID=24;
私人通知经理通知经理;
私人通知;
私有AppFinishedExecutingListener AppFinishedExecutingListener;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
//设置布局和其他东西都在这里
appFinishedExecutingListener.execute(this);
新线程(){
@凌驾
公开募捐{
试一试{
appFinishedExecutingListener.get();
handler.post(新的Runnable(){
@凌驾
公开募捐{
销毁活动组件();
}
});
}捕捉(中断异常e){
e、 printStackTrace();
}捕获(执行例外){
e、 printStackTrace();
}
}
}.start();
setupNotification();
}
/*
*安装此应用程序
*/
私有无效设置通知(){
Intent Intent=新的Intent(getApplicationContext(),MainActivity.class);
//确保当用户单击通知时,这将确保它将恢复应用程序
intent.setFlags(intent.FLAG_ACTIVITY_CLEAR_TOP | intent.FLAG_ACTIVITY_SINGLE_TOP);
//定义如果用户单击通知,即恢复我们的应用程序活动,则应执行的操作
PendingEvent pIntent=PendingEvent.getActivity(getApplicationContext(),(int)System.currentTimeMillis(),intent,0);
//在通知面板上设置此应用的外观
appNotification=new NotificationCompat.Builder(此)
.setContentTitle(getString(R.string.app_name))
.setContentText(“目前正在收听基里巴斯广播”)
.setSmallIcon(R.drawable.ic_通知_徽标)
.setContentIntent(pIntent)
.setAutoCancel(真)
.setContinuous(true).build()
;
notificationManager=(notificationManager)getSystemService(通知服务);
}
/*
*将在暂停此活动时添加应用程序通知,以便用户可以
*快速访问或轻松恢复此活动
*/
私有void addAppToNotificationP(){
notificationManager.notify(应用程序通知标签、通知ID、应用程序通知);
}
/*
*如果恢复此活动,将删除通知
*/
私有void removeAppFromNotificationP(){
notificationManager.cancel(应用程序通知标签、通知ID);
}
@凌驾
受保护的void onPause(){
super.onPause();
addAppToNotificationP();
}
@凌驾
受保护的void onResume(){
super.onResume();
从notificationp()中删除app;
}
私有无效销毁活动完全(){
onResume();
完成();
}
}
公共类AppFinishedExecutingListener扩展异步任务{
私人主要活动主要活动;
@凌驾
受保护的布尔值doInBackground(主活动…参数){
主_活动=参数[0];
而(!main_activity.isFinishing()){
尝试