I have a screen lock app like if you tap on it, it will turn off the screen. But it needs to be device administrator which I do manually for it. I want it to show a dialog box when you open the app which will take you to the device administrator settings. Like in the image.I want to a button in dialog which will take me here
This should solve your issue. Check it out and see if it fits.
How to open device administrators settings in android?
Generally speaking you need to find if there is an exported activity on your device that let's you call an intent to launch that settings page.
Related
I need to ask for permission from the user. One of the permissions I need is ACTION_MANAGE_OVERLAY_PERMISSION and the other is Settings.ACTION_MANAGE_APP_ALL_FILES_ACCESS_PERMISSION. When asking for it as you can see in the code below, it takes the user to the Settings screen so the user could tick the permission from there.
Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
Uri.parse("package:" + getPackageName()));
startActivityForResult(intent, OVERLAY_PERMISSION_REQUEST_CODE);
On some Android phones and Android versions, it takes the user straight to the specific application setting (the app that it is called from) on other devices it opens up the list of applications from which the user has to find the app and then tick the permission. In most cases on Androids lower than 10 it opens up the specific app settings window and when it's 10 or higher, it opens up the list.
Is there a way to make it consistently open the current application setting that is open?
I tried adding:
intent.addCategory("android.intent.category.DEFAULT");
intent.setData(Uri.parse("package:" + getApplicationContext().getPackageName()));
But that did not help either.
And secondly, is there a way to ask for this and other Settings permissions without opening the Settings menu and instead of doing it in a dialog inside the application?
If not then is there a way to ask for multiple Settings permissions one after another because my application requires two Settings type permissions.
EDIT
Here is what I meant by the specific application settings vs the list.
On the left picture, all apps are listed and on the right picture the specific app is opened (happens if you click on the app in the list).
Now in some cases, it directly opens the right picture but mostly it opens the left. Is there a way to force open the right picture at all times?
Is there a way to force open the right picture at all times?
No.
The Settings app usually is modified substantially by the device manufacturer. They can do whatever they want. This includes ignoring the Uri or outright removing third-party access to this screen, where the latter is what the documentation is warning against:
In some cases, a matching Activity may not exist, so ensure you safeguard against this.
If you make your own Android firmware, you could ensure that this Intent action behaves as you want, for whatever devices run your firmware.
I started a project of a windows program that connects to an android phone and gives the user information
about it, so I want to display all of the popups that appere on the phone. to do this I need the app version of the program to catch them somehow and give me the name of the app that sent the popup and the popup's contant. is it possible?
it would be kind of security issue if any app could do that... you can try with AccessibilityService with some permissions for reading screen/running Activities and checking style of every Activity is this "popup", but note that some of them are just DialogFragments. So I doubt you can recognize "popups" this way in a reliable way. Look for AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED for more info
My Android app currently enables WRITE_SETTINGS in its Manifest. When the app makes an intent Settings.ACTION_MANAGE_WRITE_SETTINGS, it shows a system dialog enabling the user to set the permission for the app to modify system settings. I would like to change this dialog however because I do not like the layout of the system generated screen. In addition, I would like to enable battery optimization on the app as well, and that has its own separate system dialog. The system dialog takes up the whole screen and can be confusing for the user to use, especially when there are two screens displayed in succession.
I would like to use my own XML layout or a popup for the dialog and letting the user enable/disable these permissions as needed. Is there a way to do that and not have the app launch the system dialog?
You can't change the system dialog for settings, media projection, runtime permissions... It's a system dialog, it can't be changed to prevent abuse.
The best you can do is explain to the user what's expected of them before you start showing these system dialogs.
The system dialog [...] can be confusing for the user to use, especially when there are two screens displayed in succession.
Explain what needs to happen before each step.
Explain what you need from the user in your app, in your visual style, then show one system dialog.
After user confirms it explain the next thing in your app, then show another system dialog.
Avast Anti-Theft (not affiliated) uses this approach when setting the app - it needs to enable its device admin and listen for notifications, both are controlled in system UI.
I want to develop a custom launcher android for Samsung Tablet where user can only exit the launcher with a passcode input.
Currently I face problem in recent app button. If user click recent app button, and then click the recent app, then click backpressed, device will go to TouchWiz launcher even I already set my launcher as a default launcher. Also, I disable the notification bar so user can't access it. However, when it go to TouchWiz via backpressed at recent app, the notification also disable, it should be able when in TouchWiz launcher.
My proposed solution is to detect when user click recent app and forbid any action that can cause the changes of current view.
You can check onWindowFocusChanged method. You Activity will get a callback on this method when you click recent apps or press back button from it. When you click on recent apps hasFocus will be false and when you press back it will be true.
documentation
I can't detect the recent app clicked. So I use onPause() to detect if my app is on foreground or background. If is in onPause() then my app is on background, if so, I do startActivity(myLauncher) so other app won't launched.
I am starting into Android I managed to start a simple app I made in a virtual device. Problem: There is no back button in the device.
I am using eclipse ADT and the device says on top: emulator64-arm. Not sure what other information are needed to provide to help me
Your emulator image is emulating a device with a hardware BACK button, and so it does not show up in a navigation bar in the device itself. As was noted in the comments, Esc on your desktop OS will map to BACK in the emulator.
If you want to change your emulator to not have hardware BACK buttons, in ~/.android/avd/.../config.ini (where ... is the name of the AVD), set hw.mainKeys=no.
you can try by edit your AVD by checking "Display a skin with hardware control". after restart your avd back button should show in your virtual device.