CODEWITHSUNDEEP
androidandroid-ndkjava-native-interfacesurfaceview
Sasha Nikolic
Sasha Nikolic

Reputation: 770

How to convert Android Surface object to native surface

I am using at the moment android_view_Surface_getSurface() in my JNI code to get the native Surface from the Java Surface object. This seems to work on Android 4.4 devices but not on devices with older OS versions, I tested with 4.1 for example, looks like symbol android_view_Surface_getSurface is missing in system libraries.

Is there approach that works on all devices? (or at least 4+). If not, how to do this just for older OS versions?

Thanks, Sasha

Upvotes: 2

Views: 3704

Answers (1)

Alex Cohn
Alex Cohn

Reputation: 57203

You have it as public API in .

/**
 * Return the ANativeWindow associated with a Java Surface object,
 * for interacting with it through native code.  This acquires a reference
 * on the ANativeWindow that is returned; be sure to use ANativeWindow_release()
 * when done with it so that it doesn't leak.
 */
ANativeWindow* ANativeWindow_fromSurface(JNIEnv* env, jobject surface);

See example here: Application crashing due to use of ANativeWindow API

Upvotes: 4

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