Android Return From Activity

One of those patterns is the hierarchical use of Activities to segregate the application and to provide re-usable chunks of application that can service certain requirements. Use this code on button click in activity and When return back to another activity just finish previous activity by setting flag in intent then put only one Activity in the Stack and destroy the previous one.

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Android activities are stored in the activity stack.

Android return from activity. By the help of android startActivityForResult method we can get result from another activity. Think about one app which has 2 activity one will be goto another one and 2nd activity will have a button to send some data back to Frist activity. To return data back to Source Activity from the Target Activity you should create an instance of androidcontentIntent class in the Target Activity.

Here is a simple method to add a back arrow to other Activity to come back to MainActivity. Going back to a previous activity could mean two things. When we use Intent class and start activity method to back previous activity then our application refreshed again as well as takes time to reload.

The finish method is used to close the activity and returns back to the calling activity. RegisterForActivityResult takes an ActivityResultContract and an ActivityResultCallback and returns an ActivityResultLauncher which youll use to launch the other activity. —close the activity— finish.

To enter a new activity we create an Intent then start a new Activity using that intent instance using the startActivity method. Returning a result from an Android Activity The Android platform prescribes a number of patterns for putting together an application that plays well with the platform and feels familiar to users. In the activity you can make use of setData to return result.

The android startActivityForResult method. When you called startActivity with that Intent you effectively told the Android OS to go find an Activity in any app installed on the system that specifies the androidintentactionMAIN action. To run the app from android studio open one of your projects activity files and click Run icon from the toolbar.

Select your mobile device as an option and then check your mobile device which will display your default screen In the above result it has shown the default screen. Intent inew Intent thisYourClassNameClass. Intent intent new Intent.

Do not need to provide constructor parameters at this time. To use the start activity method you should know the name of previous activity. String text Result to be returned —set the data to pass back— datasetDataUriparsetext.

When an activity stops the system retains the current state of its user interface. You opened the new activity from another activity with startActivityForResult. Keep track of the activity stack.

After we enter the new activity we add a listener on action bar instance to finish other activity to come back to MainActivity. In that case you can just call the finishActivity function from your code and itll take you back to the previous activity. When the user presses the Back button the current activity is popped from the top of the stack the activity is destroyed and the previous activity resumes the previous state of its UI is restored.

Build an app to get Result from an Activity using Android startActivityForResult method. So then again in the first activity you write the below code in onActivityResult. By the help of android startActivityForResult method we can send information from one activity to another and vice-versa.

When in a ComponentActivity or a Fragment the Activity Result APIs provide a registerForActivityResult API for registering the result callback. The setResult method sets a result code to either RESULT_OK or RESULT_CANCELLED and the data to be returned back to the calling activity MainActivityjava file. Intent data new Intent.

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