What intent-filters must my app cover to appear in chooser when requestion an image from an external app?

Question

What are the possible intent-filter I need to cover to make sure that any external app requesting an image will see my app in the list?

To clarify, I\'d like my app

Answer 1

Some applications may specify the application to open, and some applications have already set the default applications to Open.

Answer 2

Use this <intent-filter>:

<intent-filter
    android:icon="@drawable/icon"
    android:label="Share to my app">
    <action android:name="android.intent.action.SEND" />
    <category android:name="android.intent.category.DEFAULT" />
    <data android:mimeType="image/*" />
</intent-filter>

Answer 3

The share feature uses the following intent filter

<intent-filter>
    <action android:name="android.intent.action.SEND" />
    <category android:name="android.intent.category.DEFAULT" />
    <data android:mimeType="image/*" />
</intent-filter>

Remember that this does not mean an app is requesting a photo but that it wants to send one somewhere.

Answer 4

I had covered the correct intent-filters, however the Tumblr app requires the category OPENABLE, so instead of the filters I had I'm now using:

<intent-filter>
    <action android:name="android.intent.action.PICK" />
    <category android:name="android.intent.category.DEFAULT" />
    <data android:mimeType="image/*" />
</intent-filter>
<intent-filter>
    <action android:name="android.intent.action.GET_CONTENT" />
    <category android:name="android.intent.category.DEFAULT" />
    <category android:name="android.intent.category.OPENABLE" />
    <data android:mimeType="image/*" />
</intent-filter>

Only adding the line:

<category android:name="android.intent.category.OPENABLE" />