Android Return Data Intent

We can use one intent to pass data from one Activity to another Activity starting service or delivering broadcasts. If you look at the Activity class you will see that finish method only sends back the result if there is a mParent property set to null.

2 1 Activities And Intents Gitbook

Intent intent new Intent.

Android return data intent. The intent object takes the start activity and destination activity names. In this method an Intent object is used to send the data to the calling activity via setData method. Intent intent new Intent.

PackageIntentdata titleString priority status fullDate. PackageIntentintent titleString priority status fullDate. Package ToDoItem data into an Intent.

Here we use the setData method to return some value. The default Android camera application returns a non-null intent only when passing back a thumbnail in the returned Intent. And then retrieve it via datagetdata For some more examples have a look at this class for the first part lines 373 and this one for an own intent that returns data.

Intent data new Intent. ActivityResultLauncher mStartForResult registerForActivityResultnew StartActivityForResult new ActivityResultCallback Override public void onActivityResultActivityResult result if resultgetResultCode ActivityRESULT_OK Intent intent resultgetIntent. 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.

Return the string Hello World to the caller data is the key later. The finish method is used to close the activity and returns back to the. Otherwise the result is lost.

Its a simple as that. Intent is a messaging object. For passing data in Android we need to use objects of class Intent.

Do not need to provide constructor parameters at this time. Build an app to get Result from an Activity using Android startActivityForResult method. In your own code you could do the following in the called Intent to eg.

If the intent contains any private data then data can be leaked to third-party apps installed on the same device when implicit intents are used. TODO – return data Intent and finish Create a new intent and save the input as an extra. 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.

With implicit intents only certain parameters are set eg. Handle the Intent. Create an instance of the Intent object to return data.

Create an Intent the result object Set the result data you dont have to return a Uri – you can use the putExtra methods to set any values you want Call. If you pass EXTRA_OUTPUT with a URI to write to it will return a null intent and the picture is in the URI that you passed in. Action data mime type categories and Android itself decides which component to call.

DatasetDataUriparseData passed to the Main Activity. Private void sendBroadcast boolean success Intent intent new Intent message. Override public void onCreateNullable.

You can verify this by looking at the camera apps source code on GitHub. Here we use result with OK. Put the same message as in the filter you used in the activity when registering the receiver intentputExtrasuccess success.

After spending several hours and downloading the Android sources I have finally come to a solution. Intent data new Intent. To return data back to Source Activity from the Target Activity you should create an instance of androidcontentIntent class in the Target Activity.

The problem is that the intent data is null and the OnActivityResult method turns directly to the resultCode RESULT_CANCELED and the application returns to the previous avtivity. Intent intent new Intent. Here we use the putExtra method to return some value.

Android Development Blog