diff --git a/native/include/android/input.h b/native/include/android/input.h
index 2441af0..7617662 100644
--- a/native/include/android/input.h
+++ b/native/include/android/input.h
@@ -125,8 +125,8 @@
  * Input events are opaque structures.  Use the provided accessors functions to
  * read their properties.
  */
-struct input_event_t;
-typedef struct input_event_t input_event_t;
+struct AInputEvent;
+typedef struct AInputEvent AInputEvent;
 
 /*
  * Input event types.
@@ -319,7 +319,7 @@
 /*** Accessors for all input events. ***/
 
 /* Get the input event type. */
-int32_t input_event_get_type(const input_event_t* event);
+int32_t AInputEvent_getType(const AInputEvent* event);
 
 /* Get the id for the device that an input event came from.
  *
@@ -331,128 +331,128 @@
  * other numbers are arbitrary and you shouldn't depend on the values.
  * Use the provided input device query API to obtain information about input devices.
  */
-int32_t input_event_get_device_id(const input_event_t* event);
+int32_t AInputEvent_getDeviceId(const AInputEvent* event);
 
 /* Get the input event nature. */
-int32_t input_event_get_nature(const input_event_t* event);
+int32_t AInputEvent_getNature(const AInputEvent* event);
 
 /*** Accessors for key events only. ***/
 
 /* Get the key event action. */
-int32_t key_event_get_action(const input_event_t* key_event);
+int32_t AKeyEvent_getAction(const AInputEvent* key_event);
 
 /* Get the key event flags. */
-int32_t key_event_get_flags(const input_event_t* key_event);
+int32_t AKeyEvent_getFlags(const AInputEvent* key_event);
 
 /* Get the key code of the key event.
  * This is the physical key that was pressed, not the Unicode character. */
-int32_t key_event_get_key_code(const input_event_t* key_event);
+int32_t AKeyEvent_getKeyCode(const AInputEvent* key_event);
 
 /* Get the hardware key id of this key event.
  * These values are not reliable and vary from device to device. */
-int32_t key_event_get_scan_code(const input_event_t* key_event);
+int32_t AKeyEvent_getScanCode(const AInputEvent* key_event);
 
 /* Get the meta key state. */
-int32_t key_event_get_meta_state(const input_event_t* key_event);
+int32_t AKeyEvent_getMetaState(const AInputEvent* key_event);
 
 /* Get the repeat count of the event.
  * For both key up an key down events, this is the number of times the key has
  * repeated with the first down starting at 0 and counting up from there.  For
  * multiple key events, this is the number of down/up pairs that have occurred. */
-int32_t key_event_get_repeat_count(const input_event_t* key_event);
+int32_t AKeyEvent_getRepeatCount(const AInputEvent* key_event);
 
 /* Get the time of the most recent key down event, in the
  * java.lang.System.nanoTime() time base.  If this is a down event,
  * this will be the same as eventTime.
  * Note that when chording keys, this value is the down time of the most recently
  * pressed key, which may not be the same physical key of this event. */
-int64_t key_event_get_down_time(const input_event_t* key_event);
+int64_t AKeyEvent_getDownTime(const AInputEvent* key_event);
 
 /* Get the time this event occurred, in the
  * java.lang.System.nanoTime() time base. */
-int64_t key_event_get_event_time(const input_event_t* key_event);
+int64_t AKeyEvent_getEventTime(const AInputEvent* key_event);
 
 /*** Accessors for motion events only. ***/
 
 /* Get the combined motion event action code and pointer index. */
-int32_t motion_event_get_action(const input_event_t* motion_event);
+int32_t AMotionEvent_getAction(const AInputEvent* motion_event);
 
 /* Get the state of any meta / modifier keys that were in effect when the
  * event was generated. */
-int32_t motion_event_get_meta_state(const input_event_t* motion_event);
+int32_t AMotionEvent_getMetaState(const AInputEvent* motion_event);
 
 /* Get a bitfield indicating which edges, if any, were touched by this motion event.
  * For touch events, clients can use this to determine if the user's finger was
  * touching the edge of the display. */
-int32_t motion_event_get_edge_flags(const input_event_t* motion_event);
+int32_t AMotionEvent_getEdgeFlags(const AInputEvent* motion_event);
 
 /* Get the time when the user originally pressed down to start a stream of
  * position events, in the java.lang.System.nanoTime() time base. */
-int64_t motion_event_get_down_time(const input_event_t* motion_event);
+int64_t AMotionEvent_getDownTime(const AInputEvent* motion_event);
 
 /* Get the time when this specific event was generated,
  * in the java.lang.System.nanoTime() time base. */
-int64_t motion_event_get_event_time(const input_event_t* motion_event);
+int64_t AMotionEvent_getEventTime(const AInputEvent* motion_event);
 
 /* Get the X coordinate offset.
  * For touch events on the screen, this is the delta that was added to the raw
  * screen coordinates to adjust for the absolute position of the containing windows
  * and views. */
-float motion_event_get_x_offset(const input_event_t* motion_event);
+float AMotionEvent_getXOffset(const AInputEvent* motion_event);
 
 /* Get the precision of the Y coordinates being reported.
  * For touch events on the screen, this is the delta that was added to the raw
  * screen coordinates to adjust for the absolute position of the containing windows
  * and views. */
-float motion_event_get_y_offset(const input_event_t* motion_event);
+float AMotionEvent_getYOffset(const AInputEvent* motion_event);
 
 /* Get the precision of the X coordinates being reported.
  * You can multiply this number with an X coordinate sample to find the
  * actual hardware value of the X coordinate. */
-float motion_event_get_x_precision(const input_event_t* motion_event);
+float AMotionEvent_getXPrecision(const AInputEvent* motion_event);
 
 /* Get the precision of the Y coordinates being reported.
  * You can multiply this number with a Y coordinate sample to find the
  * actual hardware value of the Y coordinate. */
-float motion_event_get_y_precision(const input_event_t* motion_event);
+float AMotionEvent_getYPrecision(const AInputEvent* motion_event);
 
 /* Get the number of pointers of data contained in this event.
  * Always >= 1. */
-size_t motion_event_get_pointer_count(const input_event_t* motion_event);
+size_t AMotionEvent_getPointerCount(const AInputEvent* motion_event);
 
 /* Get the pointer identifier associated with a particular pointer
  * data index is this event.  The identifier tells you the actual pointer
  * number associated with the data, accounting for individual pointers
  * going up and down since the start of the current gesture. */
-int32_t motion_event_get_pointer_id(const input_event_t* motion_event, size_t pointer_index);
+int32_t AMotionEvent_getPointerId(const AInputEvent* motion_event, size_t pointer_index);
 
 /* Get the original raw X coordinate of this event.
  * For touch events on the screen, this is the original location of the event
  * on the screen, before it had been adjusted for the containing window
  * and views. */
-float motion_event_get_raw_x(const input_event_t* motion_event, size_t pointer_index);
+float AMotionEvent_getRawX(const AInputEvent* motion_event, size_t pointer_index);
 
 /* Get the original raw X coordinate of this event.
  * For touch events on the screen, this is the original location of the event
  * on the screen, before it had been adjusted for the containing window
  * and views. */
-float motion_event_get_raw_y(const input_event_t* motion_event, size_t pointer_index);
+float AMotionEvent_getRawY(const AInputEvent* motion_event, size_t pointer_index);
 
 /* Get the current X coordinate of this event for the given pointer index.
  * Whole numbers are pixels; the value may have a fraction for input devices
  * that are sub-pixel precise. */
-float motion_event_get_x(const input_event_t* motion_event, size_t pointer_index);
+float AMotionEvent_getX(const AInputEvent* motion_event, size_t pointer_index);
 
 /* Get the current Y coordinate of this event for the given pointer index.
  * Whole numbers are pixels; the value may have a fraction for input devices
  * that are sub-pixel precise. */
-float motion_event_get_y(const input_event_t* motion_event, size_t pointer_index);
+float AMotionEvent_getY(const AInputEvent* motion_event, size_t pointer_index);
 
 /* Get the current pressure of this event for the given pointer index.
  * The pressure generally ranges from 0 (no pressure at all) to 1 (normal pressure),
  * however values higher than 1 may be generated depending on the calibration of
  * the input device. */
-float motion_event_get_pressure(const input_event_t* motion_event, size_t pointer_index);
+float AMotionEvent_getPressure(const AInputEvent* motion_event, size_t pointer_index);
 
 /* Get the current scaled value of the approximate size for the given pointer index.
  * This represents some approximation of the area of the screen being
@@ -460,17 +460,17 @@
  * touch is normalized with the device specific range of values
  * and scaled to a value between 0 and 1.  The value of size can be used to
  * determine fat touch events. */
-float motion_event_get_size(const input_event_t* motion_event, size_t pointer_index);
+float AMotionEvent_getSize(const AInputEvent* motion_event, size_t pointer_index);
 
 /* Get the number of historical points in this event.  These are movements that
  * have occurred between this event and the previous event.  This only applies
  * to MOTION_EVENT_ACTION_MOVE events -- all other actions will have a size of 0.
  * Historical samples are indexed from oldest to newest. */
-size_t motion_event_get_history_size(const input_event_t* motion_event);
+size_t AMotionEvent_get_history_size(const AInputEvent* motion_event);
 
 /* Get the time that a historical movement occurred between this event and
  * the previous event, in the java.lang.System.nanoTime() time base. */
-int64_t motion_event_get_historical_event_time(input_event_t* motion_event,
+int64_t AMotionEvent_getHistoricalEventTime(AInputEvent* motion_event,
         size_t history_index);
 
 /* Get the historical raw X coordinate of this event for the given pointer index that
@@ -480,7 +480,7 @@
  * and views.
  * Whole numbers are pixels; the value may have a fraction for input devices
  * that are sub-pixel precise. */
-float motion_event_get_historical_raw_x(const input_event_t* motion_event, size_t pointer_index);
+float AMotionEvent_getHistoricalRawX(const AInputEvent* motion_event, size_t pointer_index);
 
 /* Get the historical raw Y coordinate of this event for the given pointer index that
  * occurred between this event and the previous motion event.
@@ -489,20 +489,20 @@
  * and views.
  * Whole numbers are pixels; the value may have a fraction for input devices
  * that are sub-pixel precise. */
-float motion_event_get_historical_raw_y(const input_event_t* motion_event, size_t pointer_index);
+float AMotionEvent_getHistoricalRawY(const AInputEvent* motion_event, size_t pointer_index);
 
 /* Get the historical X coordinate of this event for the given pointer index that
  * occurred between this event and the previous motion event.
  * Whole numbers are pixels; the value may have a fraction for input devices
  * that are sub-pixel precise. */
-float motion_event_get_historical_x(input_event_t* motion_event, size_t pointer_index,
+float AMotionEvent_getHistoricalX(AInputEvent* motion_event, size_t pointer_index,
         size_t history_index);
 
 /* Get the historical Y coordinate of this event for the given pointer index that
  * occurred between this event and the previous motion event.
  * Whole numbers are pixels; the value may have a fraction for input devices
  * that are sub-pixel precise. */
-float motion_event_get_historical_y(input_event_t* motion_event, size_t pointer_index,
+float AMotionEvent_getHistoricalY(AInputEvent* motion_event, size_t pointer_index,
         size_t history_index);
 
 /* Get the historical pressure of this event for the given pointer index that
@@ -510,7 +510,7 @@
  * The pressure generally ranges from 0 (no pressure at all) to 1 (normal pressure),
  * however values higher than 1 may be generated depending on the calibration of
  * the input device. */
-float motion_event_get_historical_pressure(input_event_t* motion_event, size_t pointer_index,
+float AMotionEvent_getHistoricalPressure(AInputEvent* motion_event, size_t pointer_index,
         size_t history_index);
 
 /* Get the current scaled value of the approximate size for the given pointer index that
@@ -520,7 +520,7 @@
  * touch is normalized with the device specific range of values
  * and scaled to a value between 0 and 1.  The value of size can be used to
  * determine fat touch events. */
-float motion_event_get_historical_size(input_event_t* motion_event, size_t pointer_index,
+float AMotionEvent_getHistoricalSize(AInputEvent* motion_event, size_t pointer_index,
         size_t history_index);
 
 /*
@@ -529,8 +529,8 @@
  * An input queue is the facility through which you retrieve input
  * events.
  */
-struct input_queue_t;
-typedef struct input_queue_t input_queue_t;
+struct AInputQueue;
+typedef struct AInputQueue AInputQueue;
 
 /*
  * Return a file descriptor for the queue, which you
@@ -538,26 +538,26 @@
  * is typically used with select() or poll() to multiplex
  * with other kinds of events.
  */
-int input_queue_get_fd(input_queue_t* queue);
+int AInputQueue_getFd(AInputQueue* queue);
 
 /*
  * Returns true if there are one or more events available in the
  * input queue.  Returns 1 if the queue has events; 0 if
  * it does not have events; and a negative value if there is an error.
  */
-int input_queue_has_events(input_queue_t* queue);
+int AInputQueue_hasEvents(AInputQueue* queue);
 
 /*
  * Returns the next available event from the queue.  Returns a negative
  * value if no events are available or an error has occurred.
  */
-int32_t input_queue_get_event(input_queue_t* queue, input_event_t** outEvent);
+int32_t AInputQueue_getEvent(AInputQueue* queue, AInputEvent** outEvent);
 
 /*
  * Report that dispatching has finished with the given event.
- * This must be called after receiving an event with input_queue_get_event().
+ * This must be called after receiving an event with AInputQueue_get_event().
  */
-void input_queue_finish_event(input_queue_t* queue, input_event_t* event, int handled);
+void AInputQueue_finishEvent(AInputQueue* queue, AInputEvent* event, int handled);
 
 #ifdef __cplusplus
 }
diff --git a/native/include/android/native_activity.h b/native/include/android/native_activity.h
index a58a7d2..c5c8f9d 100644
--- a/native/include/android/native_activity.h
+++ b/native/include/android/native_activity.h
@@ -30,30 +30,37 @@
 #endif
 
 // Temporary until native surface API is defined.
-struct android_surface_t;
-typedef struct android_surface_t android_surface_t;
+struct ASurfaceHolder;
+typedef struct ASurfaceHolder ASurfaceHolder;
 
-struct android_activity_callbacks_t;
+struct ANativeActivityCallbacks;
 
 /**
  * This structure defines the native side of an android.app.NativeActivity.
  * It is created by the framework, and handed to the application's native
  * code as it is being launched.
  */
-typedef struct android_activity_t {
+typedef struct ANativeActivity {
     /**
      * Pointer to the callback function table of the native application.
      * You can set the functions here to your own callbacks.  The callbacks
      * pointer itself here should not be changed; it is allocated and managed
      * for you by the framework.
      */
-    struct android_activity_callbacks_t* callbacks;
+    struct ANativeActivityCallbacks* callbacks;
 
     /**
-     * JNI context for the main thread of the app.
+     * The global handle on the process's Java VM.
+     */
+    JavaVM* vm;
+
+    /**
+     * JNI context for the main thread of the app.  Note that this field
+     * can ONLY be used from the main thread of the process; that is, the
+     * thread that calls into the ANativeActivityCallbacks.
      */
     JNIEnv* env;
-    
+
     /**
      * The NativeActivity Java class.
      */
@@ -65,7 +72,7 @@
      * state.
      */
     void* instance;
-} android_activity_t;
+} ANativeActivity;
 
 /**
  * These are the callbacks the framework makes into a native application.
@@ -73,18 +80,18 @@
  * By default, all callbacks are NULL; set to a pointer to your own function
  * to have it called.
  */
-typedef struct android_activity_callbacks_t {
+typedef struct ANativeActivityCallbacks {
     /**
      * NativeActivity has started.  See Java documentation for Activity.onStart()
      * for more information.
      */
-    void (*onStart)(android_activity_t* activity);
+    void (*onStart)(ANativeActivity* activity);
     
     /**
      * NativeActivity has resumed.  See Java documentation for Activity.onResume()
      * for more information.
      */
-    void (*onResume)(android_activity_t* activity);
+    void (*onResume)(ANativeActivity* activity);
     
     /**
      * Framework is asking NativeActivity to save its current instance state.
@@ -95,38 +102,38 @@
      * saved state will be persisted, so it can not contain any active
      * entities (pointers to memory, file descriptors, etc).
      */
-    void* (*onSaveInstanceState)(android_activity_t* activity, size_t* outSize);
+    void* (*onSaveInstanceState)(ANativeActivity* activity, size_t* outSize);
     
     /**
      * NativeActivity has paused.  See Java documentation for Activity.onPause()
      * for more information.
      */
-    void (*onPause)(android_activity_t* activity);
+    void (*onPause)(ANativeActivity* activity);
     
     /**
      * NativeActivity has stopped.  See Java documentation for Activity.onStop()
      * for more information.
      */
-    void (*onStop)(android_activity_t* activity);
+    void (*onStop)(ANativeActivity* activity);
     
     /**
      * NativeActivity is being destroyed.  See Java documentation for Activity.onDestroy()
      * for more information.
      */
-    void (*onDestroy)(android_activity_t* activity);
+    void (*onDestroy)(ANativeActivity* activity);
 
     /**
      * Focus has changed in this NativeActivity's window.  This is often used,
      * for example, to pause a game when it loses input focus.
      */
-    void (*onWindowFocusChanged)(android_activity_t* activity, int hasFocus);
+    void (*onWindowFocusChanged)(ANativeActivity* activity, int hasFocus);
     
     /**
      * The drawing surface for this native activity has been created.  You
      * can use the given surface object to start drawing.  NOTE: surface
      * drawing API is not yet defined.
      */
-    void (*onSurfaceCreated)(android_activity_t* activity, android_surface_t* surface);
+    void (*onSurfaceCreated)(ANativeActivity* activity, ASurfaceHolder* surface);
 
     /**
      * The drawing surface for this native activity has changed.  The surface
@@ -134,7 +141,7 @@
      * onSurfaceCreated.  This is simply to inform you about interesting
      * changed to that surface.
      */
-    void (*onSurfaceChanged)(android_activity_t* activity, android_surface_t* surface,
+    void (*onSurfaceChanged)(ANativeActivity* activity, ASurfaceHolder* surface,
             int format, int width, int height);
 
     /**
@@ -145,28 +152,28 @@
      * properly synchronize with the other thread to stop its drawing before
      * returning from here.
      */
-    void (*onSurfaceDestroyed)(android_activity_t* activity, android_surface_t* surface);
+    void (*onSurfaceDestroyed)(ANativeActivity* activity, ASurfaceHolder* surface);
     
     /**
      * The input queue for this native activity's window has been created.
      * You can use the given input queue to start retrieving input events.
      */
-    void (*onInputQueueCreated)(android_activity_t* activity, input_queue_t* queue);
+    void (*onInputQueueCreated)(ANativeActivity* activity, AInputQueue* queue);
     
     /**
      * The input queue for this native activity's window is being destroyed.
      * You should no longer try to reference this object upon returning from this
      * function.
      */
-    void (*onInputQueueDestroyed)(android_activity_t* activity, input_queue_t* queue);
+    void (*onInputQueueDestroyed)(ANativeActivity* activity, AInputQueue* queue);
 
     /**
      * The system is running low on memory.  Use this callback to release
      * resources you do not need, to help the system avoid killing more
      * important processes.
      */
-    void (*onLowMemory)(android_activity_t* activity);
-} android_activity_callbacks_t;
+    void (*onLowMemory)(ANativeActivity* activity);
+} ANativeActivityCallbacks;
 
 /**
  * This is the function that must be in the native code to instantiate the
@@ -174,14 +181,14 @@
  * above); if the code is being instantiated from a previously saved instance,
  * the savedState will be non-NULL and point to the saved data.
  */
-typedef void android_activity_create_t(android_activity_t* activity,
+typedef void ANativeActivity_createFunc(ANativeActivity* activity,
         void* savedState, size_t savedStateSize);
 
 /**
  * The name of the function that NativeInstance looks for when launching its
  * native code.
  */
-extern android_activity_create_t android_onCreateActivity;
+extern ANativeActivity_createFunc ANativeActivity_onCreate;
 
 #ifdef __cplusplus
 };