Google deprecated the OnActivityResult, here are three different ways to use the new ActivityResultLauncher – Android Development Tips

Using it as an image picker

ActivityResultLauncher<String> imageLauncher =

	registerForActivityResult( 
           new ActivityResultContracts.GetContent(),
		new ActivityResultCallback<Uri>()
{
    @Override
    public void onActivityResult( Uri uri )
    {
        // Handle the returned Uri
        if( uri == null )
	    return;

        // do something with the uri
    }
} );

Calling the imageLauncher – Android Development Tips

private void getFromGallery()
{
    imageLauncher.launch( "image/*" );
}

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Get information back from an activity,

the values are passed back from the activity

First, Call the activity with the data it needs – Android Development Tips

private void processActivity()
{
    Intent intent;
    intent = new Intent( this, MyActivity.class );

    intent.putExtra( "some_value", some_value);
    intent.putExtra( "another_value", another_value );
    // etc ...
    getSomeInfoLauncher.launch( intent );
}

Then in the activity, pass back the info required. – Android Development Tips

private void sendStuffBack()
{
    Intent intent = new Intent();
    Bundle bundle = new Bundle();
    bundle.putInt( "intResult", intResult);
    bundle.putString( "stringResult", stringResult );
    intent.putExtras( bundle );
    setResult( Constants.SOME_RESULT_CODE, intent );
    finish();
}

And here is the ActivityResultLauncher – Android Development Tips

ActivityResultLauncher<Intent> getSomeInfoLauncher = 
    registerForActivityResult(
	new ActivityResultContracts.StartActivityForResult(),
result ->
{
    if( result.getResultCode() == Constants.SOME_RESULT_CODE )
    {
	Intent intentData = result.getData();
	if( intentData == null )
    	    return;

	Bundle bundle = intentData.getExtras();
	int intValue = bundle.getInt( "intValue" );
	String stringValue = bundle.getString( "stringValue" );
        // etc ...
        // do something with results
} );

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Taking a Photo requires a lot more work

Android Development Tips

Edit your AndroidManifest.xml file and add the following under the application tag:

<provider
    android:name="androidx.core.content.FileProvider"
    android:authorities="${applicationId}.fileProvider"
    android:exported="false"
    android:grantUriPermissions="true">
    <meta-data
        android:name="android.support.FILE_PROVIDER_PATHS"
        android:resource="@xml/provider_paths" />;
</provider>;

Next create an XML file under xml in res – Android Development Tips

<paths>
    <cache-path name="cached_files" path="." />
    <files-path name="images" path="." />
    <external-path name="files_root"
           path="Android/data/path.to.your.app/" />
    <external-path name="external_storage_root" path="."/>
</paths>

To call the launcher, create a member variable to hold a Uri – Android Development Tips

private Uri takePhotoUri = null;

Then use code similar to the following – Android Development Tips

private void takePhoto()
{
    String fileName = "some_prefix_" + some_suffix;
    File outputDir = getCacheDir();
    File file;
    try
    {
        file = File.createTempFile( fileName, ".jpg", outputDir );
    }
    catch( IOException e )
    {
        return;
    }

    try
    {
        takePhotoUri = FileProvider.getUriForFile( 
            Objects.requireNonNull(
                 getApplicationContext()),
                    BuildConfig.APPLICATION_ID +
                          ".fileProvider", file );
    }
    catch( IllegalArgumentException e )
    {
        return;
    }

    try
    {
        takePhotoLauncher.launch( takePhotoUri );
    }
    catch( Exception ignore )
    {
    }
}

Here is the ActivityResultLauncher – Android Development Tips

ActivityResultLauncher<Uri> takePhotoLauncher = 
    registerForActivityResult(
	new ActivityResultContracts.TakePicture(), result ->
{
    if( !result  )
        return;

    // do something with uri (takePhotoUri)
} );