Selecting Images Using the Built-In Gallery Application
As we know, using an intent is often the quickest way to harness a capability that already exists in a pre-installed Android application. For the purposes of the examples in this chapter, let's look at how we can harness the built-in Gallery application to select an image that we might want to work with.
The intent that we'll want to use is a generic Intent.ACTION_PICK that signals to Android that we want to select a piece of data. We also supply a URI for the data that we want to pick from. In this case, we are using android.provier.MediaStore.Images.Media.EXTERNAL_CONTENT_URI, which means that we'll be selecting images that are stored using the MediaStore on the SD card.
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