I am developing an application and its Home Screen Widget.
Now from my widget when i press on a button it would open up my application from where it was left.
Means if i press home button during my application running then my application will go in background mode.
Now i want that it should resume my opened application.
Whenever i press a button from my Widget. How Can i Do it??
Please help
Thanks a bunch in advance!
I've never made a widget before, but this is how I've made a notification launch back into my original activity when you pull down the bar and click it.
Intent originalActivity = new Intent(getApplicationContext(), Widget.class);
originalActivity.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
Once again, not sure how you would do this with a widget, but to relaunch it for a notification you convert that Intent into a PendingIntent to be called later when you want to launch back into it. I would assume this is a similar fashion for how you would it on a widget.
Related
I've created a receiver to receive and display push notifications - when the user presses on the push notification it opens a deep-link within my application. The problem is that when the user presses "back" he doesn't exit back to the home screen, but rather he goes to whatever screens for my application were open before on the application backstack - even if the application was minimized before he pressed on the notification.
The behavior that I need is for the user to be on the home screen, for him to open the notifications panel, press on my notification, go into the deep link page in my app, and when he presses the back button - I want him to exit all the way out to the home screen again. I don't want him in any way interacting with the backstack for the main application.
I've tried numerous combinations of flags for the pendingIntent in the push notification. Everything from FLAG_ACTIVITY_TASK_ON_HOME to FLAG_ACTIVITY_NEW_TASK to FLAG_ACTIVITY_SINGLE_TOP, etc. No combination seems to give me what I want - in every single case, opening the deep link with the app minimized will always return me to the next page in the history of the app when I press the back button. How can I solve this?
Example code:
Intent notificationIntent = new Intent(this, DeepLink.class);
notificationIntent.setData(Uri.parse(url));
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_TASK_ON_HOME);
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(getBaseContext(), 1, notificationIntent, 0);
Solved. The deeplink class was starting an intent for each deeplink and these required that I set the flags NEW_TASK and CLEAR_TASK for each one. After that - everything worked.
I created an example project here:
https://github.com/amitishai/Android-notifications
Here is the scenario:
Open app
Press button
Exit app
Click on the notification that was created. When the app opens you will be in Activity "Bla".
Press the OS BACK button.
Long press the OS Home button in order to see the open apps.
Click on the app.
You will see that you have entered Activity "Bla" again, and the text is the same.
If the activity was initially created with the intent, and then destroyed, how is the intent not null when restarting the activity?
The solution was to use Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
Example is here:
Android: Starting app from 'recent applications' starts it with the last set of extras used in an intent
I have an app widget on the home screen which includes a button that launches a basic settings Activity.
When the user presses the Back button, if the main application has some activities in it's stack, the back press takes you to the most recently viewed Activity in the app, rather than back to the homepage. I've tried the following flags for my intent:
settingsIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
settingsIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_TASK_ON_HOME);
settingsIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
But no luck with any. Is there any flag or combination of flags I can use to do this? Thanks.
You need to do the following:
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
You are currently using setFlags which overrides the flags you set previously when you need both of these flags for it to work correctly.
You can read abut this at http://developer.android.com/reference/android/content/Intent.html#FLAG_ACTIVITY_CLEAR_TOP
try next
settingsIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
settingsIntent.addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
This flags run activity in new task and don't add it to history after exit.
So your settings activity don't cross with main app
When i click training icon it show the button named Home.
When i click home button it shows the home screen as below.
My application is currently running right, I want to close the application and have to show the home screen when i click the app icon(training).How could i do this..?
Actually i have a button in my layout and i'm showing the home screen with the following code when the button is pressed.
Intent startMain = new Intent(Intent.ACTION_MAIN);
startMain.addCategory(Intent.CATEGORY_HOME);
startMain.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(startMain);
It shows the home screen and my service in background has started.
I want to stop all the action from my app to be stopped when i click launcher icon.
My question is how can i stop the activity when my application icon is clicked again.
Sorry for poor english..!
If you application consists only of an Activity then it is already stopped when the user re-clicks the launcher icon (since he had to exit the app).
We need more info if that's not your scenario.
Use it in your activity. When you exit from your app it will stop the action as well as destroy the app. And it will launch new activity when you click your app icon again.
#Override
protected void onDestroy() {
android.os.Process.killProcess(android.os.Process.myPid());
}
Maybe you can check if your service is running, or more dirty with a static int counter. Let the counter increment in your onCreate(). Now you can check for the second start of your apk
Put finish(); on the method onResume().
Of course, if you need to do something else, just put your code before the finish();.
It should do.
I have an odd issue with my application.
I start the application and the activity shows ok.
I then press the home key so that the activity goes into the background. I can see the onPause() method being called.
The application's service then creates a notification which shows on the status bar.
I then click on the notification and the activity is shown and I see that the onResume() method is called.
I then press the home key and the activity goes into the background. I can see the onPause() method being called.
If I now start the application by clicking on the applications icon I see that a new instance of the activity is created rather than using the paused instance.
If I press the home key again the new activity goes into the background.
Starting the application by clicking on the applications icon I see another new instance of the activity is created.
Pressing the back button at the point destroys each activity in return.
What I want to happen is that a single instance of the activity be used.
Any ideas?
Just use the same intent filters as android uses when launches the app:
final Intent notificationIntent = new Intent(context, MessageListActivity.class);
notificationIntent.setAction(Intent.ACTION_MAIN);
notificationIntent.addCategory(Intent.CATEGORY_LAUNCHER);
As the intent you created to open your activity from notification bar is the same as android used for launching your app, the previously opened activity will be shown instead of creating a new one.
You should look at the different launch modes for Android activities. this should help. Launch modes can be set in the androidmanifest.xml file. I think your solution would be to use the 'singleTop' launch mode.