Android Image Viewer Action Open Document

The android image viewer action open document tutorial is the second part to the android image viewer tutorial series.

Where the viewers will be shown how to create a basic android application that loads an image thumbnail and then displays it on the full screen.

This android tutorial series targeted towards beginners to android who would like to learn how to create a basic android application.

In this tutorial we will introduce android intents and show how they can be used to pass requests to other parts of the android os.

Get Code

The code from this tutorial can be found on github here

https://github.com/mobapptuts/android_image_viewer.git Tag image-viewer-intent

or you can run this command

git clone https://github.com/mobapptuts/android_image_viewer.git –branch image-viewer-intent

Code Samples

Add a result code member for the intent request

private static final int REQUEST_OPEN_RESULT_CODE = 0;

Create the intent and send it

@Override
   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_image_view_main);

       mImageView = (ImageView) findViewById(R.id.imageView);

       Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
       intent.addCategory(Intent.CATEGORY_OPENABLE);
       intent.setType("image/*");
       startActivityForResult(intent, REQUEST_OPEN_RESULT_CODE);
   }