Android: Launch application and take screen shot - java

It is possible, that my application launches when a certain app (app-xyz) starts. and take screen shot on every click in app-xyz.
regards

No. This is for security- if you could do this, you could take screenshots of people entering passwords. The only way to take a screenshot if you aren't the active activity is to use adb or similar tool.

Related

How can Take permission using an alert Box at just destroy the application in Android

I just want to show an alert box at just killing the application in android.
It's like a Notepad application, if we simply kill the app (on clicking the close button) then we get an alert box asking for save changes.
I just want to add same thing in my application.I have tried onBackPressed() and its working fine on clicking on Back Button. But I need same thing on closing the application.
There is now way to be sure if the app is being closed but you can place a check if the application is in foreground or not which is a better metric IMHO as this tells you when the user moved away from your application.
To check the ProcessLifeCycleOwner this will help you find state of process. You can check this Github sample or this stackoverflow question in how to use it.

How to show dialog when app is in background in android app like collect app

image
I am sharing a link from another app like youtube to my app but Now it opens my app and then saves the link. My need is to not save the link without opening the app
There are two solutions:
You don't need dialog or anything like it. Just make the activity fully transparent, process data and finish it. Optionally, you can show Toast as a feedback. It would look and feel like everything is processed in the background.
You need dialog or some kind of UI. For this, you can use floating windows that you can show over other apps. Many apps use this approach such as Pocket, etc. There is complete guide on how to do it: https://localazy.com/blog/floating-windows-on-android-1-jetpack-compose-room

Can I start Android App not in FullScreen mode?

I saw that youtube app can minimize to small window that displays over all other windows.
I want to do the same with my app.
What strings in manifest (or any other string) do it?
Thanks,
I am about this:
Take a look at google documentation about this topic, it is called picture-in-picture
You need to add the first two lines to your activity which will handle Picture in Picture (PIP) mode.
The third line needs to be added so that your activity will not relaunch once layout changes occur, such as device screen rotation.
android:resizeableActivity="true"
android:supportsPictureInPicture="true"
android:configChanges="screenSize|smallestScreenSize|screenLayout|orientation"
You can find more information about this in the android documentation.
Here is a tutorial on how to implement it.
You can refer to the following tutorials which are nice to understand
picture in picture feature
https://medium.com/#mujtahidah/making-picture-in-picture-android-4120ac73efb4
http://www.zoftino.com/android-picture-in-picture-mode-example

Set pass code for an android application in android studio

I am working on a application , it is having an pass code screen with 4 digits. How to set pass code like that screen and when I open the app I need to show the pass code screen in order to open the application.
Thank you.
first you need to google out something before you ask any question..any way this may help you JUST START your THOUGHT.
How can i set up screen lock with a password programmatically?

Closing application in Android - delay

I programmed a button into my android app that called the finish() method when I click it. But somehow it does not close until after a 5-6 second delay.
I am recording sensor values for a particular movement of the phone. The problem is when there is a delay after I close, it records those unnecessary values and the analysis is messed up.
So any idea why the UI takes so long to respond? I am very new to Android and I can't find this online. I don't do too much computation- as and when sensors change I record the value onto a file in the sdcard memory. Sometimes if I run the program for too long, it just crashes and I don't know why.
Please help! I would also like to know if there's a manual way to kill through the computer? something like Ctrl+C for DOS?
Is there a keyboard shortcut to close a running Android application?
There is no concept in Android of "close a running Android application".
The Esc key in the emulator behaves as the BACK button to (typically) close the current activity.
I have a button that I use to kill the application in my phone and that has a huge delay.
No, you don't.

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