forms app I have four screens namely main screen , screen 2 ,list screen and settings screen so main screen is the entry screen and screen 2 is the one where all the operations are performed here and from here I can navigate to list screen and settings screen ,there is a close button in this screen 2 on click of it ,it pops back to main screen .so when I click on back button in android from main screen it takes me back to screen 2 instead of exiting from the app and on the click of back button again it takes me to list screen ,so can anyone please guide me how to tackle this back button activity ?
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For some reason clicking the App over view button (the button next to the home button and lets you view all apps running) makes my app flicker... What would be the reason?
I am currently using one activity, all other screens are fragments stacked on each other. Could that be the problem?
Also, when clicking on the app over view button, sometimes all the fragments will simply be removed leading me back to my singular main activity...
I have multiple screens in my app in which each screen has next and previous buttons except the first screen. when I click the previous button on 3rd screen it needs to go back to the 2nd screen and when I click next button on 3rd screen it needs to go to the 4th screen. In addition to it, the data of the screens need to be saved i.e. when I clicked the previous button on 3rd screen then the 2nd screen with already filled should be displayed. Similar with the next button also. Can anyone help me to implement this?
Thank you.
I have noticed the splash screen does not display when user clicks the middle button on a real device to quit an application but if user selects back button from main menu to quit app and relaunches the splash screen will display.
Question is what function is the middle button performing compared to the back pressed and is there a way to ensure the splash screen is displayed when the middle button is used to quit an application.
Thanks.
The HOME button takes the user to the home screen (also called the Launcher). The BACK button by default finishes the current activity, which usually results in the user ending up on the previous activity he was in, until he reaches the home screen. The difference is BACK will explicitly finish an Activity, whereas HOME will not.
I have 3 screens(xmls):
screen 1 is main menu,
screen 2 is main game and
screen 3 is showing either game over screen or game finished, screen 3's background is blurred transparent on top of screen 2.
All these navigations are creating new activity(view) and using intent to go next screen.
problem1 : if i keep on creating new activities whenever user go to screen 1 to screen 2 and finishes the game and screen 3 will have option to new game which will create new activity of screen 2, in this case, stack will be more and to go out of the game user should press back button in more number (stack numbers). I would like to know though game creates multiple activities, in stack only 3 screens should retain (or when user clicks on back button 3 times, game should come out)
problem2: user clicks on backbutton when blurred screen 3 on top of screen2 should go to main screen (screen1), as per current stage, when i click on back button its going to screen2 (from blurred screen3, which is no meaning for me)
Thanks
Problem 1 : write android:launchMode="singleTop" for each activity tag in manifest . this will avoid creation of multiple instances into history stack , will keep latest entry only .
Problem 2 write android:noHistory="true" in Screen2 activity tag of manifest,so that there will be no entry for Screen2 in history stack and back press on screen3 will show screen 1 . also have a look of Intent.FLAG_ACTIVITY_NO_HISTORY
What you want to do is set the launch mode for these activites to single top in your manifest. In your manifest set android:launchMode=singleTop for each activity you only want one instance of. For more information, checkout this.
On my Android App, I have set up a splash screen. The splash screen opens when the app is opened and lasts for two seconds before it redirects to a login screen.
The issue I am having is that the splash screen displays once, and then re-directs to the login screen. BUT when I click on the app again it goes straight to the login screen ignoring the splash screen. Is there a reason for this? Does it automatically open on your last screen? Because then if I hit the back button when it opens on the login screen it DOES go back to the splash screen but then doesn't redirect to the login screen after 2 seconds.
Yes this is normal behavior. When you hit the back button after the second launch you are ending the app, thus your splash screen shows on the next launch. You will need to add an intent to your login activity's on resume method to launch your splash screen. Here is a on resume example. Android example which uses onResume, onStart and onRestart
Set clearTaskOnLaunch via the Android Manifest of your project to true. This will clear the task/stack history whenever the activity is launched.