Some native activity sample code cleanup.

Update to include newest headers and library, tweak glue code to
work better with state saving and add support for config changes.

Change-Id: I4d27bd4a0f542f217efaec86cf4f219aca020426
This commit is contained in:
Dianne Hackborn
2010-08-04 11:13:03 -07:00
parent f4790e6f9e
commit 79b946e8f2
15 changed files with 922 additions and 182 deletions

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@@ -18,8 +18,6 @@
#ifndef ANDROID_ASSET_MANAGER_H
#define ANDROID_ASSET_MANAGER_H
#include <jni.h>
#ifdef __cplusplus
extern "C" {
#endif
@@ -42,14 +40,6 @@ enum {
};
/**
* Given a Dalvik AssetManager object, obtain the corresponding native AAssetManager
* object. Note that the caller is responsible for obtaining and holding a VM reference
* to the jobject to prevent its being garbage collected while the native object is
* in use.
*/
AAssetManager* AAssetManager_fromJava(JNIEnv* env, jobject assetManager);
/**
* Open the named directory within the asset hierarchy. The directory can then
* be inspected with the AAssetDir functions. To open the top-level directory,

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@@ -0,0 +1,40 @@
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_ASSET_MANAGER_JNI_H
#define ANDROID_ASSET_MANAGER_JNI_H
#include <android/asset_manager.h>
#include <jni.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* Given a Dalvik AssetManager object, obtain the corresponding native AAssetManager
* object. Note that the caller is responsible for obtaining and holding a VM reference
* to the jobject to prevent its being garbage collected while the native object is
* in use.
*/
AAssetManager* AAssetManager_fromJava(JNIEnv* env, jobject assetManager);
#ifdef __cplusplus
};
#endif
#endif // ANDROID_ASSET_MANAGER_JNI_H

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@@ -0,0 +1,319 @@
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_CONFIGURATION_H
#define ANDROID_CONFIGURATION_H
#include <android/asset_manager.h>
#ifdef __cplusplus
extern "C" {
#endif
struct AConfiguration;
typedef struct AConfiguration AConfiguration;
enum {
ACONFIGURATION_ORIENTATION_ANY = 0x0000,
ACONFIGURATION_ORIENTATION_PORT = 0x0001,
ACONFIGURATION_ORIENTATION_LAND = 0x0002,
ACONFIGURATION_ORIENTATION_SQUARE = 0x0003,
ACONFIGURATION_TOUCHSCREEN_ANY = 0x0000,
ACONFIGURATION_TOUCHSCREEN_NOTOUCH = 0x0001,
ACONFIGURATION_TOUCHSCREEN_STYLUS = 0x0002,
ACONFIGURATION_TOUCHSCREEN_FINGER = 0x0003,
ACONFIGURATION_DENSITY_DEFAULT = 0,
ACONFIGURATION_DENSITY_LOW = 120,
ACONFIGURATION_DENSITY_MEDIUM = 160,
ACONFIGURATION_DENSITY_HIGH = 240,
ACONFIGURATION_DENSITY_NONE = 0xffff,
ACONFIGURATION_KEYBOARD_ANY = 0x0000,
ACONFIGURATION_KEYBOARD_NOKEYS = 0x0001,
ACONFIGURATION_KEYBOARD_QWERTY = 0x0002,
ACONFIGURATION_KEYBOARD_12KEY = 0x0003,
ACONFIGURATION_NAVIGATION_ANY = 0x0000,
ACONFIGURATION_NAVIGATION_NONAV = 0x0001,
ACONFIGURATION_NAVIGATION_DPAD = 0x0002,
ACONFIGURATION_NAVIGATION_TRACKBALL = 0x0003,
ACONFIGURATION_NAVIGATION_WHEEL = 0x0004,
ACONFIGURATION_KEYSHIDDEN_ANY = 0x0000,
ACONFIGURATION_KEYSHIDDEN_NO = 0x0001,
ACONFIGURATION_KEYSHIDDEN_YES = 0x0002,
ACONFIGURATION_KEYSHIDDEN_SOFT = 0x0003,
ACONFIGURATION_NAVHIDDEN_ANY = 0x0000,
ACONFIGURATION_NAVHIDDEN_NO = 0x0001,
ACONFIGURATION_NAVHIDDEN_YES = 0x0002,
ACONFIGURATION_SCREENSIZE_ANY = 0x00,
ACONFIGURATION_SCREENSIZE_SMALL = 0x01,
ACONFIGURATION_SCREENSIZE_NORMAL = 0x02,
ACONFIGURATION_SCREENSIZE_LARGE = 0x03,
ACONFIGURATION_SCREENSIZE_XLARGE = 0x04,
ACONFIGURATION_SCREENLONG_ANY = 0x00,
ACONFIGURATION_SCREENLONG_NO = 0x1,
ACONFIGURATION_SCREENLONG_YES = 0x2,
ACONFIGURATION_UI_MODE_TYPE_ANY = 0x00,
ACONFIGURATION_UI_MODE_TYPE_NORMAL = 0x01,
ACONFIGURATION_UI_MODE_TYPE_DESK = 0x02,
ACONFIGURATION_UI_MODE_TYPE_CAR = 0x03,
ACONFIGURATION_UI_MODE_NIGHT_ANY = 0x00,
ACONFIGURATION_UI_MODE_NIGHT_NO = 0x10,
ACONFIGURATION_UI_MODE_NIGHT_YES = 0x20,
ACONFIGURATION_MCC = 0x0001,
ACONFIGURATION_MNC = 0x0002,
ACONFIGURATION_LOCALE = 0x0004,
ACONFIGURATION_TOUCHSCREEN = 0x0008,
ACONFIGURATION_KEYBOARD = 0x0010,
ACONFIGURATION_KEYBOARD_HIDDEN = 0x0020,
ACONFIGURATION_NAVIGATION = 0x0040,
ACONFIGURATION_ORIENTATION = 0x0080,
ACONFIGURATION_DENSITY = 0x0100,
ACONFIGURATION_SCREEN_SIZE = 0x0200,
ACONFIGURATION_VERSION = 0x0400,
ACONFIGURATION_SCREEN_LAYOUT = 0x0800,
ACONFIGURATION_UI_MODE = 0x1000,
};
/**
* Create a new AConfiguration, initialized with no values set.
*/
AConfiguration* AConfiguration_new();
/**
* Free an AConfiguration that was previously created with
* AConfiguration_new().
*/
void AConfiguration_delete(AConfiguration* config);
/**
* Create and return a new AConfiguration based on the current configuration in
* use in the given AssetManager.
*/
void AConfiguration_fromAssetManager(AConfiguration* out, AAssetManager* am);
/**
* Copy the contents of 'src' to 'dest'.
*/
void AConfiguration_copy(AConfiguration* dest, AConfiguration* src);
/**
* Return the current MCC set in the configuration. 0 if not set.
*/
int32_t AConfiguration_getMcc(AConfiguration* config);
/**
* Set the current MCC in the configuration. 0 to clear.
*/
void AConfiguration_setMcc(AConfiguration* config, int32_t mcc);
/**
* Return the current MNC set in the configuration. 0 if not set.
*/
int32_t AConfiguration_getMnc(AConfiguration* config);
/**
* Set the current MNC in the configuration. 0 to clear.
*/
void AConfiguration_setMnc(AConfiguration* config, int32_t mnc);
/**
* Return the current language code set in the configuration. The output will
* be filled with an array of two characters. They are not 0-terminated. If
* a language is not set, they will be 0.
*/
void AConfiguration_getLanguage(AConfiguration* config, char* outLanguage);
/**
* Set the current language code in the configuration, from the first two
* characters in the string.
*/
void AConfiguration_setLanguage(AConfiguration* config, const char* language);
/**
* Return the current country code set in the configuration. The output will
* be filled with an array of two characters. They are not 0-terminated. If
* a country is not set, they will be 0.
*/
void AConfiguration_getCountry(AConfiguration* config, char* outCountry);
/**
* Set the current country code in the configuration, from the first two
* characters in the string.
*/
void AConfiguration_setCountry(AConfiguration* config, const char* country);
/**
* Return the current ACONFIGURATION_ORIENTATION_* set in the configuration.
*/
int32_t AConfiguration_getOrientation(AConfiguration* config);
/**
* Set the current orientation in the configuration.
*/
void AConfiguration_setOrientation(AConfiguration* config, int32_t orientation);
/**
* Return the current ACONFIGURATION_TOUCHSCREEN_* set in the configuration.
*/
int32_t AConfiguration_getTouchscreen(AConfiguration* config);
/**
* Set the current touchscreen in the configuration.
*/
void AConfiguration_setTouchscreen(AConfiguration* config, int32_t touchscreen);
/**
* Return the current ACONFIGURATION_DENSITY_* set in the configuration.
*/
int32_t AConfiguration_getDensity(AConfiguration* config);
/**
* Set the current density in the configuration.
*/
void AConfiguration_setDensity(AConfiguration* config, int32_t density);
/**
* Return the current ACONFIGURATION_KEYBOARD_* set in the configuration.
*/
int32_t AConfiguration_getKeyboard(AConfiguration* config);
/**
* Set the current keyboard in the configuration.
*/
void AConfiguration_setKeyboard(AConfiguration* config, int32_t keyboard);
/**
* Return the current ACONFIGURATION_NAVIGATION_* set in the configuration.
*/
int32_t AConfiguration_getNavigation(AConfiguration* config);
/**
* Set the current navigation in the configuration.
*/
void AConfiguration_setNavigation(AConfiguration* config, int32_t navigation);
/**
* Return the current ACONFIGURATION_KEYSHIDDEN_* set in the configuration.
*/
int32_t AConfiguration_getKeysHidden(AConfiguration* config);
/**
* Set the current keys hidden in the configuration.
*/
void AConfiguration_setKeysHidden(AConfiguration* config, int32_t keysHidden);
/**
* Return the current ACONFIGURATION_NAVHIDDEN_* set in the configuration.
*/
int32_t AConfiguration_getNavHidden(AConfiguration* config);
/**
* Set the current nav hidden in the configuration.
*/
void AConfiguration_setNavHidden(AConfiguration* config, int32_t navHidden);
/**
* Return the current SDK (API) version set in the configuration.
*/
int32_t AConfiguration_getSdkVersion(AConfiguration* config);
/**
* Set the current SDK version in the configuration.
*/
void AConfiguration_setSdkVersion(AConfiguration* config, int32_t sdkVersion);
/**
* Return the current ACONFIGURATION_SCREENSIZE_* set in the configuration.
*/
int32_t AConfiguration_getScreenSize(AConfiguration* config);
/**
* Set the current screen size in the configuration.
*/
void AConfiguration_setScreenSize(AConfiguration* config, int32_t screenSize);
/**
* Return the current ACONFIGURATION_SCREENLONG_* set in the configuration.
*/
int32_t AConfiguration_getScreenLong(AConfiguration* config);
/**
* Set the current screen long in the configuration.
*/
void AConfiguration_setScreenLong(AConfiguration* config, int32_t screenLong);
/**
* Return the current ACONFIGURATION_UI_MODE_TYPE_* set in the configuration.
*/
int32_t AConfiguration_getUiModeType(AConfiguration* config);
/**
* Set the current UI mode type in the configuration.
*/
void AConfiguration_setUiModeType(AConfiguration* config, int32_t uiModeType);
/**
* Return the current ACONFIGURATION_UI_MODE_NIGHT_* set in the configuration.
*/
int32_t AConfiguration_getUiModeNight(AConfiguration* config);
/**
* Set the current UI mode night in the configuration.
*/
void AConfiguration_setUiModeNight(AConfiguration* config, int32_t uiModeNight);
/**
* Perform a diff between two configurations. Returns a bit mask of
* ACONFIGURATION_* constants, each bit set meaning that configuration element
* is different between them.
*/
int32_t AConfiguration_diff(AConfiguration* config1, AConfiguration* config2);
/**
* Determine whether 'base' is a valid configuration for use within the
* environment 'requested'. Returns 0 if there are any values in 'base'
* that conflict with 'requested'. Returns 1 if it does not conflict.
*/
int32_t AConfiguration_match(AConfiguration* base, AConfiguration* requested);
/**
* Determine whether the configuration in 'test' is better than the existing
* configuration in 'base'. If 'requested' is non-NULL, this decision is based
* on the overall configuration given there. If it is NULL, this decision is
* simply based on which configuration is more specific. Returns non-0 if
* 'test' is better than 'base'.
*
* This assumes you have already filtered the configurations with
* AConfiguration_match().
*/
int32_t AConfiguration_isBetterThan(AConfiguration* base, AConfiguration* test,
AConfiguration* requested);
#ifdef __cplusplus
};
#endif
#endif // ANDROID_CONFIGURATION_H

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@@ -40,6 +40,7 @@
* NOTE: These functions MUST be implemented by /system/lib/libui.so
*/
#include <stdint.h>
#include <sys/types.h>
#include <android/keycodes.h>
#include <android/looper.h>
@@ -268,7 +269,6 @@ enum {
/*
* Input sources.
*
* The appropriate interpretation for an input event depends on its source.
* Refer to the documentation on android.view.InputDevice for more details about input sources
* and their correct interpretation.
*/
@@ -296,6 +296,37 @@ enum {
AINPUT_SOURCE_JOYSTICK_RIGHT = 0x02000000 | AINPUT_SOURCE_CLASS_JOYSTICK,
};
/*
* Keyboard types.
*
* Refer to the documentation on android.view.InputDevice for more details.
*/
enum {
AINPUT_KEYBOARD_TYPE_NONE = 0,
AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC = 1,
AINPUT_KEYBOARD_TYPE_ALPHABETIC = 2,
};
/*
* Constants used to retrieve information about the range of motion for a particular
* coordinate of a motion event.
*
* Refer to the documentation on android.view.InputDevice for more details about input sources
* and their correct interpretation.
*/
enum {
AINPUT_MOTION_RANGE_X = 0,
AINPUT_MOTION_RANGE_Y = 1,
AINPUT_MOTION_RANGE_PRESSURE = 2,
AINPUT_MOTION_RANGE_SIZE = 3,
AINPUT_MOTION_RANGE_TOUCH_MAJOR = 4,
AINPUT_MOTION_RANGE_TOUCH_MINOR = 5,
AINPUT_MOTION_RANGE_TOOL_MAJOR = 6,
AINPUT_MOTION_RANGE_TOOL_MINOR = 7,
AINPUT_MOTION_RANGE_ORIENTATION = 8,
};
/*
* Input event accessors.
*
@@ -475,7 +506,7 @@ float AMotionEvent_getToolMinor(const AInputEvent* motion_event, size_t pointer_
* upwards, is perfectly circular or is of unknown orientation. A positive angle
* indicates that the major axis of contact is oriented to the right. A negative angle
* indicates that the major axis of contact is oriented to the left.
* The full range is from -PI/4 radians (finger pointing fully left) to PI/4 radians
* The full range is from -PI/2 radians (finger pointing fully left) to PI/2 radians
* (finger pointing fully right). */
float AMotionEvent_getOrientation(const AInputEvent* motion_event, size_t pointer_index);
@@ -575,7 +606,7 @@ float AMotionEvent_getHistoricalToolMinor(const AInputEvent* motion_event, size_
* upwards, is perfectly circular or is of unknown orientation. A positive angle
* indicates that the major axis of contact is oriented to the right. A negative angle
* indicates that the major axis of contact is oriented to the left.
* The full range is from -PI/4 radians (finger pointing fully left) to PI/4 radians
* The full range is from -PI/2 radians (finger pointing fully left) to PI/2 radians
* (finger pointing fully right). */
float AMotionEvent_getHistoricalOrientation(const AInputEvent* motion_event, size_t pointer_index,
size_t history_index);
@@ -631,6 +662,64 @@ int32_t AInputQueue_preDispatchEvent(AInputQueue* queue, AInputEvent* event);
*/
void AInputQueue_finishEvent(AInputQueue* queue, AInputEvent* event, int handled);
/*
* Input devices.
*
* These functions provide a mechanism for querying the set of available input devices
* and their characteristics and capabilities.
*/
struct AInputDevice;
typedef struct AInputDevice AInputDevice;
/*
* Populates the supplied array with the ids of all input devices in the system.
* Sets nActual to the actual number of devices.
* Returns zero if enumeration was successful.
* Returns non-zero if the actual number of devices is greater than nMax, in which case the
* client should call the method again with a larger id buffer.
*/
int32_t AInputDevice_getDeviceIds(int32_t* idBuf, size_t nMax, size_t* nActual);
/*
* Acquires a device by id.
* Returns NULL if the device was not found.
*
* Note: The returned object must be freed using AInputDevice_release when no longer needed.
*/
AInputDevice* AInputDevice_acquire(int32_t deviceId);
/*
* Releases a device previously acquired by AInputDevice_acquire.
* If device is NULL, this function does nothing.
*/
void AInputDevice_release(AInputDevice* device);
/*
* Gets the name of an input device.
*
* Note: The caller should copy the name into a private buffer since the returned pointer
* will become invalid when the device object is released.
*/
const char* AInputDevice_getName(AInputDevice* device);
/*
* Gets the combination of input sources provided by the input device.
*/
uint32_t AInputDevice_getSources(AInputDevice* device);
/*
* Gets the keyboard type.
*/
int32_t AInputDevice_getKeyboardType(AInputDevice* device);
/* Gets the minimum value, maximum value, flat position and error tolerance for a
* particular motion coodinate.
* Returns zero if the device supports the specified motion range. */
int32_t AInputDevice_getMotionRange(AInputDevice* device, int32_t rangeType,
float* outMin, float* outMax, float* outFlat, float* outFuzz);
//TODO hasKey, keymap stuff, etc...
#ifdef __cplusplus
}
#endif

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@@ -196,6 +196,12 @@ typedef struct ANativeActivityCallbacks {
*/
void (*onContentRectChanged)(ANativeActivity* activity, const ARect* rect);
/**
* The current device AConfiguration has changed. The new configuration can
* be retrieved from assetManager.
*/
void (*onConfigurationChanged)(ANativeActivity* activity);
/**
* The system is running low on memory. Use this callback to release
* resources you do not need, to help the system avoid killing more
@@ -208,7 +214,9 @@ typedef struct ANativeActivityCallbacks {
* This is the function that must be in the native code to instantiate the
* application's native activity. It is called with the activity instance (see
* above); if the code is being instantiated from a previously saved instance,
* the savedState will be non-NULL and point to the saved data.
* the savedState will be non-NULL and point to the saved data. You must make
* any copy of this data you need -- it will be released after you return from
* this function.
*/
typedef void ANativeActivity_createFunc(ANativeActivity* activity,
void* savedState, size_t savedStateSize);

View File

@@ -36,12 +36,23 @@ struct ANativeWindow;
typedef struct ANativeWindow ANativeWindow;
typedef struct ANativeWindow_Buffer {
// The number of pixels that are show horizontally.
int32_t width;
// The number of pixels that are shown vertically.
int32_t height;
// The number of *pixels* that a line in the buffer takes in
// memory. This may be >= width.
int32_t stride;
// The format of the buffer. One of WINDOW_FORMAT_*
int32_t format;
// The actual bits.
void* bits;
// Do not touch.
uint32_t reserved[6];
} ANativeWindow_Buffer;

View File

@@ -87,6 +87,7 @@ enum {
* A sensor event.
*/
/* NOTE: Must match hardware/sensors.h */
typedef struct ASensorVector {
union {
float v[3];
@@ -95,23 +96,33 @@ typedef struct ASensorVector {
float y;
float z;
};
struct {
float azimuth;
float pitch;
float roll;
};
};
int8_t status;
uint8_t reserved[3];
} ASensorVector;
/* NOTE: Must match hardware/sensors.h */
typedef struct ASensorEvent {
int sensor;
int32_t version; /* sizeof(struct ASensorEvent) */
int32_t sensor;
int32_t type;
int32_t reserved0;
int64_t timestamp;
union {
float data[16];
ASensorVector vector;
ASensorVector acceleration;
ASensorVector magnetic;
float temperature;
float distance;
float light;
float pressure;
};
int64_t timestamp;
int32_t reserved1[4];
} ASensorEvent;
@@ -124,6 +135,8 @@ typedef struct ASensorEventQueue ASensorEventQueue;
struct ASensor;
typedef struct ASensor ASensor;
typedef ASensor const* ASensorRef;
typedef ASensorRef const* ASensorList;
/*****************************************************************************/
@@ -141,13 +154,13 @@ ASensorManager* ASensorManager_getInstance();
/*
* Returns the list of available sensors.
*/
int ASensorManager_getSensorList(ASensorManager* manager, ASensor** list);
int ASensorManager_getSensorList(ASensorManager* manager, ASensorList* list);
/*
* Returns the default sensor for the given type, or NULL if no sensor
* of that type exist.
*/
ASensor* ASensorManager_getDefaultSensor(ASensorManager* manager, int type);
ASensor const* ASensorManager_getDefaultSensor(ASensorManager* manager, int type);
/*
* Creates a new sensor event queue and associate it with a looper.
@@ -166,20 +179,21 @@ int ASensorManager_destroyEventQueue(ASensorManager* manager, ASensorEventQueue*
/*
* Enable the selected sensor. Returns a negative error code on failure.
*/
int ASensorEventQueue_enableSensor(ASensorEventQueue* queue, ASensor* sensor);
int ASensorEventQueue_enableSensor(ASensorEventQueue* queue, ASensor const* sensor);
/*
* Disable the selected sensor. Returns a negative error code on failure.
*/
int ASensorEventQueue_disableSensor(ASensorEventQueue* queue, ASensor* sensor);
int ASensorEventQueue_disableSensor(ASensorEventQueue* queue, ASensor const* sensor);
/*
* Sets the delivery rate of events in microseconds for the given sensor.
* Note that this is a hint only, generally event will arrive at a higher
* rate.
* rate. It is an error to set a rate inferior to the value returned by
* ASensor_getMinDelay().
* Returns a negative error code on failure.
*/
int ASensorEventQueue_setEventRate(ASensorEventQueue* queue, ASensor* sensor, int32_t usec);
int ASensorEventQueue_setEventRate(ASensorEventQueue* queue, ASensor const* sensor, int32_t usec);
/*
* Returns true if there are one or more events available in the
@@ -210,22 +224,29 @@ ssize_t ASensorEventQueue_getEvents(ASensorEventQueue* queue,
/*
* Returns this sensor's name (non localized)
*/
const char* ASensor_getName(ASensor* sensor);
const char* ASensor_getName(ASensor const* sensor);
/*
* Returns this sensor's vendor's name (non localized)
*/
const char* ASensor_getVendor(ASensor* sensor);
const char* ASensor_getVendor(ASensor const* sensor);
/*
* Return this sensor's type
*/
int ASensor_getType(ASensor* sensor);
int ASensor_getType(ASensor const* sensor);
/*
* Returns this sensors's resolution
*/
float ASensor_getResolution(ASensor* sensor);
float ASensor_getResolution(ASensor const* sensor);
/*
* Returns the minimum delay allowed between events in microseconds.
* A value of zero means that this sensor doesn't report events at a
* constant rate, but rather only when a new data is available.
*/
int ASensor_getMinDelay(ASensor const* sensor);
#ifdef __cplusplus

View File

@@ -1,13 +1,22 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- BEGIN_INCLUDE(manifest) -->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.native_activity"
android:versionCode="1"
android:versionName="1.0">
<!-- This is the platform API where NativeActivity was introduced. -->
<uses-sdk android:minSdkVersion="8" />
<application android:label="@string/app_name"
android:hasCode="false" android:debuggable="true">
<!-- This .apk has no Java code itself, so set hasCode to false. -->
<application android:label="@string/app_name" android:hasCode="false">
<!-- Our activity is the built-in NativeActivity framework class.
This will take care of integrating with our NDK code. -->
<activity android:name="android.app.NativeActivity"
android:label="@string/app_name">
android:label="@string/app_name"
android:configChanges="orientation|keyboardHidden">
<!-- Tell NativeActivity the name of or .so -->
<meta-data android:name="android.app.lib_name"
android:value="native-activity" />
<intent-filter>
@@ -16,4 +25,6 @@
</intent-filter>
</activity>
</application>
</manifest>
<!-- END_INCLUDE(manifest) -->

View File

@@ -15,6 +15,7 @@
*
*/
//BEGIN_INCLUDE(all)
#include <jni.h>
#include <errno.h>
@@ -23,6 +24,18 @@
#include "glutils.h"
/**
* Our saved state data.
*/
struct saved_state {
float angle;
int32_t x;
int32_t y;
};
/**
* Shared state for our app.
*/
struct engine {
struct android_app* app;
@@ -32,11 +45,12 @@ struct engine {
EGLContext context;
int32_t width;
int32_t height;
float angle;
int32_t x;
int32_t y;
struct saved_state state;
};
/**
* Initialize an EGL context for the current display.
*/
static int engine_init_display(struct engine* engine) {
// initialize opengl and egl
const EGLint attribs[] = {
@@ -68,7 +82,7 @@ static int engine_init_display(struct engine* engine) {
engine->surface = surface;
engine->width = w;
engine->height = h;
engine->angle = 0;
engine->state.angle = 0;
// Initialize GL state.
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
@@ -79,39 +93,26 @@ static int engine_init_display(struct engine* engine) {
return 0;
}
/**
* Just the current frame in the display.
*/
static void engine_draw_frame(struct engine* engine) {
if (engine->display == NULL) {
// No display.
return;
}
glClearColor(((float)engine->x)/engine->width, engine->angle,
((float)engine->y)/engine->height, 1);
// Just fill the screen with a color.
glClearColor(((float)engine->state.x)/engine->width, engine->state.angle,
((float)engine->state.y)/engine->height, 1);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
#if 0
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(0, 0, -3.0f);
glRotatef(engine->angle, 0, 1, 0);
glRotatef(engine->angle*0.25f, 1, 0, 0);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
//mCube.draw(gl);
glRotatef(engine->angle*2.0f, 0, 1, 1);
glTranslatef(0.5f, 0.5f, 0.5f);
//mCube.draw(gl);
#endif
eglSwapBuffers(engine->display, engine->surface);
//engine->angle += 1.2f;
}
/**
* Tear down the EGL context currently associated with the display.
*/
static int engine_term_display(struct engine* engine) {
if (engine->display != EGL_NO_DISPLAY) {
eglMakeCurrent(engine->display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
@@ -129,89 +130,106 @@ static int engine_term_display(struct engine* engine) {
engine->surface = EGL_NO_SURFACE;
}
static int engine_do_ui_event(struct engine* engine) {
AInputEvent* event = NULL;
if (AInputQueue_getEvent(engine->app->inputQueue, &event) >= 0) {
LOGI("New input event: type=%d\n", AInputEvent_getType(event));
if (AInputQueue_preDispatchEvent(engine->app->inputQueue, event)) {
return 1;
}
/**
* Process the next input event.
*/
static int32_t engine_handle_input(struct android_app* app, AInputEvent* event) {
struct engine* engine = (struct engine*)app->userData;
if (AInputEvent_getType(event) == AINPUT_EVENT_TYPE_MOTION) {
engine->animating = 1;
engine->x = AMotionEvent_getX(event, 0);
engine->y = AMotionEvent_getY(event, 0);
AInputQueue_finishEvent(engine->app->inputQueue, event, 1);
} else {
AInputQueue_finishEvent(engine->app->inputQueue, event, 0);
}
} else {
LOGI("Failure reading next input event: %s\n", strerror(errno));
}
engine->state.x = AMotionEvent_getX(event, 0);
engine->state.y = AMotionEvent_getY(event, 0);
return 1;
}
return 0;
}
static int32_t engine_do_main_cmd(struct engine* engine) {
int32_t res;
int8_t cmd = android_app_read_cmd(engine->app);
/**
* Process the next main command.
*/
static void engine_handle_cmd(struct android_app* app, int32_t cmd) {
struct engine* engine = (struct engine*)app->userData;
switch (cmd) {
case APP_CMD_WINDOW_CHANGED:
engine_term_display(engine);
res = android_app_exec_cmd(engine->app, cmd);
case APP_CMD_SAVE_STATE:
engine->app->savedState = malloc(sizeof(struct saved_state));
*((struct saved_state*)engine->app->savedState) = engine->state;
engine->app->savedStateSize = sizeof(struct saved_state);
break;
case APP_CMD_INIT_WINDOW:
if (engine->app->window != NULL) {
engine_init_display(engine);
engine_draw_frame(engine);
}
break;
case APP_CMD_TERM_WINDOW:
engine_term_display(engine);
break;
case APP_CMD_LOST_FOCUS:
res = android_app_exec_cmd(engine->app, cmd);
engine->animating = 0;
engine_draw_frame(engine);
break;
default:
res = android_app_exec_cmd(engine->app, cmd);
break;
}
return res;
}
}
/**
* This is the main entry point of a native application that is using
* android_native_app_glue. It runs in its own thread, with its own
* event loop for receiving input events and doing other things.
*/
void android_main(struct android_app* state) {
struct engine engine;
// Make sure glue isn't stripped.
app_dummy();
memset(&engine, 0, sizeof(engine));
state->userData = &engine;
state->onAppCmd = engine_handle_cmd;
state->onInputEvent = engine_handle_input;
engine.app = state;
if (state->savedState != NULL) {
// We are starting with a previous saved state; restore from it.
engine.state = *(struct saved_state*)state->savedState;
}
// loop waiting for stuff to do.
while (1) {
// Read all pending events.
int fd;
int events;
void* data;
while ((fd=ALooper_pollAll(engine.animating ? 0 : -1, &events, &data)) >= 0) {
switch ((int)data) {
case LOOPER_ID_MAIN:
if (!engine_do_main_cmd(&engine)) {
LOGI("Engine thread destroy requested!");
struct android_poll_source* source;
// If not animating, we will block forever waiting for events.
// If animating, we loop until all events are read, then continue
// to draw the next frame of animation.
while ((fd=ALooper_pollAll(engine.animating ? 0 : -1, &events,
(void**)&source)) >= 0) {
// Process this event.
if (source != NULL) {
source->process(state);
}
// Check if we are exiting.
if (state->destroyRequested != 0) {
engine_term_display(&engine);
return;
}
break;
case LOOPER_ID_EVENT:
engine_do_ui_event(&engine);
break;
}
}
if (engine.animating) {
// Done with events; draw next animation frame.
engine.angle += .01f;
if (engine.angle > 1) {
engine.angle = 0;
engine.state.angle += .01f;
if (engine.state.angle > 1) {
engine.state.angle = 0;
}
// Drawing is throttled to the screen update rate, so there
// is no need to do timing here.
engine_draw_frame(&engine);
}
}
}
//END_INCLUDE(all)

View File

@@ -0,0 +1,4 @@
// Temporary until the NDK build system can deal with there being no Java source.
class Dummy {
}

View File

@@ -411,53 +411,37 @@ static int engine_term_display(struct engine* engine) {
engine->animating = 0;
}
static int engine_do_ui_event(struct engine* engine) {
AInputEvent* event = NULL;
if (AInputQueue_getEvent(engine->app->inputQueue, &event) >= 0) {
if (AInputQueue_preDispatchEvent(engine->app->inputQueue, event)) {
return 1;
}
static int32_t engine_handle_input(struct android_app* app, AInputEvent* event) {
struct engine* engine = (struct engine*)app->userData;
if (AInputEvent_getType(event) == AINPUT_EVENT_TYPE_MOTION) {
engine->animating = 1;
AInputQueue_finishEvent(engine->app->inputQueue, event, 1);
return 1;
} else if (AInputEvent_getType(event) == AINPUT_EVENT_TYPE_KEY) {
LOGI("Key event: action=%d keyCode=%d metaState=0x%x",
AKeyEvent_getAction(event),
AKeyEvent_getKeyCode(event),
AKeyEvent_getMetaState(event));
AInputQueue_finishEvent(engine->app->inputQueue, event, 0);
} else {
AInputQueue_finishEvent(engine->app->inputQueue, event, 0);
}
} else {
LOGI("Failure reading next input event: %s\n", strerror(errno));
}
return 1;
return 0;
}
static int32_t engine_do_main_cmd(struct engine* engine) {
int32_t res;
int8_t cmd = android_app_read_cmd(engine->app);
static void engine_handle_cmd(struct android_app* app, int32_t cmd) {
struct engine* engine = (struct engine*)app->userData;
switch (cmd) {
case APP_CMD_WINDOW_CHANGED:
engine_term_display(engine);
res = android_app_exec_cmd(engine->app, cmd);
case APP_CMD_INIT_WINDOW:
if (engine->app->window != NULL) {
engine_draw_frame(engine);
}
break;
case APP_CMD_TERM_WINDOW:
engine_term_display(engine);
break;
case APP_CMD_LOST_FOCUS:
res = android_app_exec_cmd(engine->app, cmd);
engine->animating = 0;
engine_draw_frame(engine);
break;
default:
res = android_app_exec_cmd(engine->app, cmd);
break;
}
return res;
}
void android_main(struct android_app* state) {
@@ -465,8 +449,13 @@ void android_main(struct android_app* state) {
struct engine engine;
// Make sure glue isn't stripped.
app_dummy();
memset(&engine, 0, sizeof(engine));
state->userData = &engine;
state->onAppCmd = engine_handle_cmd;
state->onInputEvent = engine_handle_input;
engine.app = state;
if (!init) {
@@ -482,20 +471,25 @@ void android_main(struct android_app* state) {
// Read all pending events.
int fd;
int events;
void* data;
while ((fd=ALooper_pollAll(engine.animating ? 0 : -1, &events, &data)) >= 0) {
switch ((int)data) {
case LOOPER_ID_MAIN:
if (!engine_do_main_cmd(&engine)) {
struct android_poll_source* source;
// If not animating, we will block forever waiting for events.
// If animating, we loop until all events are read, then continue
// to draw the next frame of animation.
while ((fd=ALooper_pollAll(engine.animating ? 0 : -1, &events,
(void**)&source)) >= 0) {
// Process this event.
if (source != NULL) {
source->process(state);
}
// Check if we are exiting.
if (state->destroyRequested != 0) {
LOGI("Engine thread destroy requested!");
engine_term_display(&engine);
return;
}
break;
case LOOPER_ID_EVENT:
engine_do_ui_event(&engine);
break;
}
}
if (engine.animating) {

View File

@@ -1,4 +1,4 @@
// Temporary until the NDK build system can deal with there being no Java source.
class Dummy {
// Only needed for the build system.
public class Dummy {
}

View File

@@ -26,19 +26,58 @@
#include <android/log.h>
#define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, "threaded_app", __VA_ARGS__))
#define LOGW(...) ((void)__android_log_print(ANDROID_LOG_WARN, "threaded_app", __VA_ARGS__))
static void free_saved_state(struct android_app* android_app) {
pthread_mutex_lock(&android_app->mutex);
if (android_app->savedState != NULL) {
free(android_app->savedState);
android_app->savedState = NULL;
android_app->savedStateSize = 0;
}
pthread_mutex_unlock(&android_app->mutex);
}
int8_t android_app_read_cmd(struct android_app* android_app) {
int8_t cmd;
if (read(android_app->msgread, &cmd, sizeof(cmd)) == sizeof(cmd)) {
switch (cmd) {
case APP_CMD_SAVE_STATE:
free_saved_state(android_app);
break;
}
return cmd;
} else {
LOGW("No data on command pipe!");
LOGI("No data on command pipe!");
}
return -1;
}
int32_t android_app_exec_cmd(struct android_app* android_app, int8_t cmd) {
static void print_cur_config(struct android_app* android_app) {
char lang[2], country[2];
AConfiguration_getLanguage(android_app->config, lang);
AConfiguration_getCountry(android_app->config, country);
LOGI("Config: mcc=%d mnc=%d lang=%c%c cnt=%c%c orien=%d touch=%d dens=%d "
"keys=%d nav=%d keysHid=%d navHid=%d sdk=%d size=%d long=%d "
"modetype=%d modenight=%d",
AConfiguration_getMcc(android_app->config),
AConfiguration_getMnc(android_app->config),
lang[0], lang[1], country[0], country[1],
AConfiguration_getOrientation(android_app->config),
AConfiguration_getTouchscreen(android_app->config),
AConfiguration_getDensity(android_app->config),
AConfiguration_getKeyboard(android_app->config),
AConfiguration_getNavigation(android_app->config),
AConfiguration_getKeysHidden(android_app->config),
AConfiguration_getNavHidden(android_app->config),
AConfiguration_getSdkVersion(android_app->config),
AConfiguration_getScreenSize(android_app->config),
AConfiguration_getScreenLong(android_app->config),
AConfiguration_getUiModeType(android_app->config),
AConfiguration_getUiModeNight(android_app->config));
}
void android_app_pre_exec_cmd(struct android_app* android_app, int8_t cmd) {
switch (cmd) {
case APP_CMD_INPUT_CHANGED:
LOGI("APP_CMD_INPUT_CHANGED\n");
@@ -50,22 +89,30 @@ int32_t android_app_exec_cmd(struct android_app* android_app, int8_t cmd) {
if (android_app->inputQueue != NULL) {
LOGI("Attaching input queue to looper");
AInputQueue_attachLooper(android_app->inputQueue,
android_app->looper, NULL, (void*)LOOPER_ID_EVENT);
android_app->looper, NULL, &android_app->inputPollSource);
}
pthread_cond_broadcast(&android_app->cond);
pthread_mutex_unlock(&android_app->mutex);
break;
case APP_CMD_WINDOW_CHANGED:
LOGI("APP_CMD_WINDOW_CHANGED\n");
case APP_CMD_INIT_WINDOW:
LOGI("APP_CMD_INIT_WINDOW\n");
pthread_mutex_lock(&android_app->mutex);
android_app->window = android_app->pendingWindow;
pthread_cond_broadcast(&android_app->cond);
pthread_mutex_unlock(&android_app->mutex);
break;
case APP_CMD_START:
case APP_CMD_TERM_WINDOW:
LOGI("APP_CMD_TERM_WINDOW\n");
pthread_mutex_lock(&android_app->mutex);
android_app->window = NULL;
pthread_cond_broadcast(&android_app->cond);
pthread_mutex_unlock(&android_app->mutex);
break;
case APP_CMD_RESUME:
case APP_CMD_START:
case APP_CMD_PAUSE:
case APP_CMD_STOP:
LOGI("activityState=%d\n", cmd);
@@ -75,32 +122,101 @@ int32_t android_app_exec_cmd(struct android_app* android_app, int8_t cmd) {
pthread_mutex_unlock(&android_app->mutex);
break;
case APP_CMD_CONFIG_CHANGED:
LOGI("APP_CMD_CONFIG_CHANGED\n");
AConfiguration_fromAssetManager(android_app->config,
android_app->activity->assetManager);
print_cur_config(android_app);
break;
case APP_CMD_DESTROY:
LOGI("APP_CMD_DESTROY\n");
android_app->destroyRequested = 1;
break;
}
}
void android_app_post_exec_cmd(struct android_app* android_app, int8_t cmd) {
switch (cmd) {
case APP_CMD_TERM_WINDOW:
LOGI("APP_CMD_TERM_WINDOW\n");
pthread_mutex_lock(&android_app->mutex);
android_app->window = NULL;
pthread_cond_broadcast(&android_app->cond);
pthread_mutex_unlock(&android_app->mutex);
break;
case APP_CMD_SAVE_STATE:
LOGI("APP_CMD_SAVE_STATE\n");
pthread_mutex_lock(&android_app->mutex);
android_app->stateSaved = 1;
pthread_cond_broadcast(&android_app->cond);
pthread_mutex_unlock(&android_app->mutex);
break;
case APP_CMD_RESUME:
free_saved_state(android_app);
break;
}
}
void app_dummy() {
return android_app->destroyRequested ? 0 : 1;
}
static void android_app_destroy(struct android_app* android_app) {
LOGI("android_app_destroy!");
free_saved_state(android_app);
pthread_mutex_lock(&android_app->mutex);
if (android_app->inputQueue != NULL) {
AInputQueue_detachLooper(android_app->inputQueue);
}
AConfiguration_delete(android_app->config);
android_app->destroyed = 1;
pthread_cond_broadcast(&android_app->cond);
pthread_mutex_unlock(&android_app->mutex);
// Can't touch android_app object after this.
}
static void process_input(struct android_app* app) {
AInputEvent* event = NULL;
if (AInputQueue_getEvent(app->inputQueue, &event) >= 0) {
LOGI("New input event: type=%d\n", AInputEvent_getType(event));
if (AInputQueue_preDispatchEvent(app->inputQueue, event)) {
return;
}
int32_t handled = 0;
if (app->onInputEvent != NULL) handled = app->onInputEvent(app, event);
AInputQueue_finishEvent(app->inputQueue, event, handled);
} else {
LOGI("Failure reading next input event: %s\n", strerror(errno));
}
}
static void process_cmd(struct android_app* app) {
int8_t cmd = android_app_read_cmd(app);
android_app_pre_exec_cmd(app, cmd);
if (app->onAppCmd != NULL) app->onAppCmd(app, cmd);
android_app_post_exec_cmd(app, cmd);
}
static void* android_app_entry(void* param) {
struct android_app* android_app = (struct android_app*)param;
android_app->config = AConfiguration_new();
AConfiguration_fromAssetManager(android_app->config, android_app->activity->assetManager);
print_cur_config(android_app);
android_app->cmdPollSource.id = LOOPER_ID_MAIN;
android_app->cmdPollSource.app = android_app;
android_app->cmdPollSource.process = process_cmd;
android_app->inputPollSource.id = LOOPER_ID_INPUT;
android_app->inputPollSource.app = android_app;
android_app->inputPollSource.process = process_input;
ALooper* looper = ALooper_prepare(ALOOPER_PREPARE_ALLOW_NON_CALLBACKS);
ALooper_addFd(looper, android_app->msgread, POLLIN, NULL, (void*)LOOPER_ID_MAIN);
ALooper_addFd(looper, android_app->msgread, POLLIN, NULL, &android_app->cmdPollSource);
android_app->looper = looper;
pthread_mutex_lock(&android_app->mutex);
@@ -118,7 +234,8 @@ static void* android_app_entry(void* param) {
// Native activity interaction (called from main thread)
// --------------------------------------------------------------------
static struct android_app* android_app_create(ANativeActivity* activity) {
static struct android_app* android_app_create(ANativeActivity* activity,
void* savedState, size_t savedStateSize) {
struct android_app* android_app = (struct android_app*)malloc(sizeof(struct android_app));
memset(android_app, 0, sizeof(struct android_app));
android_app->activity = activity;
@@ -126,6 +243,12 @@ static struct android_app* android_app_create(ANativeActivity* activity) {
pthread_mutex_init(&android_app->mutex, NULL);
pthread_cond_init(&android_app->cond, NULL);
if (savedState != NULL) {
android_app->savedState = malloc(savedStateSize);
android_app->savedStateSize = savedStateSize;
memcpy(android_app->savedState, savedState, savedStateSize);
}
int msgpipe[2];
if (pipe(msgpipe)) {
LOGI("could not create pipe: %s", strerror(errno));
@@ -166,8 +289,13 @@ static void android_app_set_input(struct android_app* android_app, AInputQueue*
static void android_app_set_window(struct android_app* android_app, ANativeWindow* window) {
pthread_mutex_lock(&android_app->mutex);
if (android_app->pendingWindow != NULL) {
android_app_write_cmd(android_app, APP_CMD_TERM_WINDOW);
}
android_app->pendingWindow = window;
android_app_write_cmd(android_app, APP_CMD_WINDOW_CHANGED);
if (window != NULL) {
android_app_write_cmd(android_app, APP_CMD_INIT_WINDOW);
}
while (android_app->window != android_app->pendingWindow) {
pthread_cond_wait(&android_app->cond, &android_app->mutex);
}
@@ -214,8 +342,27 @@ static void onResume(ANativeActivity* activity) {
}
static void* onSaveInstanceState(ANativeActivity* activity, size_t* outLen) {
struct android_app* android_app = (struct android_app*)activity->instance;
void* savedState = NULL;
LOGI("SaveInstanceState: %p\n", activity);
return NULL;
pthread_mutex_lock(&android_app->mutex);
android_app->stateSaved = 0;
android_app_write_cmd(android_app, APP_CMD_SAVE_STATE);
while (!android_app->stateSaved) {
pthread_cond_wait(&android_app->cond, &android_app->mutex);
}
if (android_app->savedState != NULL) {
savedState = android_app->savedState;
*outLen = android_app->savedStateSize;
android_app->savedState = NULL;
android_app->savedStateSize = 0;
}
pthread_mutex_unlock(&android_app->mutex);
return savedState;
}
static void onPause(ANativeActivity* activity) {
@@ -228,8 +375,16 @@ static void onStop(ANativeActivity* activity) {
android_app_set_activity_state((struct android_app*)activity->instance, APP_CMD_STOP);
}
static void onConfigurationChanged(ANativeActivity* activity) {
struct android_app* android_app = (struct android_app*)activity->instance;
LOGI("ConfigurationChanged: %p\n", activity);
android_app_write_cmd(android_app, APP_CMD_CONFIG_CHANGED);
}
static void onLowMemory(ANativeActivity* activity) {
struct android_app* android_app = (struct android_app*)activity->instance;
LOGI("LowMemory: %p\n", activity);
android_app_write_cmd(android_app, APP_CMD_LOW_MEMORY);
}
static void onWindowFocusChanged(ANativeActivity* activity, int focused) {
@@ -267,6 +422,7 @@ void ANativeActivity_onCreate(ANativeActivity* activity,
activity->callbacks->onSaveInstanceState = onSaveInstanceState;
activity->callbacks->onPause = onPause;
activity->callbacks->onStop = onStop;
activity->callbacks->onConfigurationChanged = onConfigurationChanged;
activity->callbacks->onLowMemory = onLowMemory;
activity->callbacks->onWindowFocusChanged = onWindowFocusChanged;
activity->callbacks->onNativeWindowCreated = onNativeWindowCreated;
@@ -274,5 +430,5 @@ void ANativeActivity_onCreate(ANativeActivity* activity,
activity->callbacks->onInputQueueCreated = onInputQueueCreated;
activity->callbacks->onInputQueueDestroyed = onInputQueueDestroyed;
activity->instance = android_app_create(activity);
activity->instance = android_app_create(activity, savedState, savedStateSize);
}

View File

@@ -22,8 +22,9 @@
#include <pthread.h>
#include <sched.h>
#include <android/native_activity.h>
#include <android/configuration.h>
#include <android/looper.h>
#include <android/native_activity.h>
#ifdef __cplusplus
extern "C"
@@ -59,7 +60,7 @@ extern "C"
* - input events coming from the AInputQueue attached to the activity.
*
* Each of these correspond to an ALooper callback that returns a "data"
* value of LOOPER_ID_MAIN and LOOPER_ID_EVENT, respectively.
* value of LOOPER_ID_MAIN and LOOPER_ID_INPUT, respectively.
*
* Your application can use the same ALooper to listen to additionnal
* file-descriptors.
@@ -71,7 +72,7 @@ extern "C"
*
* XXX: MAKE THIS STUFF MORE CLEAR !!
*
* 5/ Whenever you receive a LOOPER_ID_EVENT event from the ALooper, you
* 5/ Whenever you receive a LOOPER_ID_INPUT event from the ALooper, you
* should read one event from the AInputQueue with AInputQueue_getEvent().
*
* See the sample named "native-activity" that comes with the NDK with a
@@ -79,6 +80,25 @@ extern "C"
*
*/
struct android_app;
/**
* Data associated with an ALooper fd that will be returned as the "outData"
* when that source has data ready.
*/
struct android_poll_source {
// The identifier of this source. May be LOOPER_ID_MAIN or
// LOOPER_ID_INPUT.
int32_t id;
// The android_app this fd is associated with.
struct android_app* app;
// Function to call to perform the standard processing of data from
// this source.
void (*process)(struct android_app* app);
};
/**
* This is the interface for the standard glue code of a threaded
* application. In this model, the application's code is running
@@ -92,9 +112,32 @@ struct android_app {
// here if it likes.
void* userData;
// Fill this in with the function to process main app commands (APP_CMD_*)
void (*onAppCmd)(struct android_app* app, int32_t cmd);
// Fill this in with the function to process input events. At this point
// the event has already been pre-dispatched, and it will be finished upon
// return. Return 1 if you have handled the event, 0 for any default
// dispatching.
int32_t (*onInputEvent)(struct android_app* app, AInputEvent* event);
// The ANativeActivity object instance that this app is running in.
ANativeActivity* activity;
// The current configuration the app is running in.
AConfiguration* config;
// This is the last instance's saved state, as provided at creation time.
// It is NULL if there was no state. You can use this as you need; the
// memory will remain around until you call android_app_exec_cmd() for
// APP_CMD_RESUME, at which point it will be freed and savedState set to NULL.
// These variables should only be changed when processing a APP_CMD_SAVE_STATE,
// at which point they will be initialized to NULL and you can malloc your
// state and place the information here. In that case the memory will be
// freed for you later.
void* savedState;
size_t savedStateSize;
// The ALooper associated with the app's thread.
ALooper* looper;
@@ -113,6 +156,10 @@ struct android_app {
// APP_CMD_RESUME, APP_CMD_PAUSE, or APP_CMD_STOP; see below.
int activityState;
// This is non-zero when the application's NativeActivity is being
// destroyed and waiting for the app thread to complete.
int destroyRequested;
// -------------------------------------------------
// Below are "private" implementation of the glue code.
@@ -124,11 +171,11 @@ struct android_app {
pthread_t thread;
// This is non-zero when the application's NativeActivity is being
// destroyed and waiting for the app thread to complete.
int destroyRequested;
struct android_poll_source cmdPollSource;
struct android_poll_source inputPollSource;
int running;
int stateSaved;
int destroyed;
int redrawNeeded;
AInputQueue* pendingInputQueue;
@@ -149,7 +196,7 @@ enum {
* application's window. These can be read via the inputQueue
* object of android_app.
*/
LOOPER_ID_EVENT = 2
LOOPER_ID_INPUT = 2
};
enum {
@@ -161,11 +208,19 @@ enum {
APP_CMD_INPUT_CHANGED,
/**
* Command from main thread: the ANativeWindow has changed. Upon processing
* this command, android_app->window will be updated to the new window surface
* (or NULL).
* Command from main thread: a new ANativeWindow is ready for use. Upon
* receiving this command, android_app->window will contain the new window
* surface.
*/
APP_CMD_WINDOW_CHANGED,
APP_CMD_INIT_WINDOW,
/**
* Command from main thread: the existing ANativeWindow needs to be
* terminated. Upon receiving this command, android_app->window still
* contains the existing window; after calling android_app_exec_cmd
* it will be set to NULL.
*/
APP_CMD_TERM_WINDOW,
/**
* Command from main thread: the current ANativeWindow has been resized.
@@ -199,6 +254,11 @@ enum {
*/
APP_CMD_LOST_FOCUS,
/**
* Command from main thread: the current device configuration has changed.
*/
APP_CMD_CONFIG_CHANGED,
/**
* Command from main thread: the system is running low on memory.
* Try to reduce your memory use.
@@ -215,6 +275,15 @@ enum {
*/
APP_CMD_RESUME,
/**
* Command from main thread: the app should generate a new saved state
* for itself, to restore from later if needed. If you have saved state,
* allocate it with malloc and place it in android_app.savedState with
* the size in android_app.savedStateSize. The will be freed for you
* later.
*/
APP_CMD_SAVE_STATE,
/**
* Command from main thread: the app's activity has been paused.
*/
@@ -240,12 +309,22 @@ int8_t android_app_read_cmd(struct android_app* android_app);
/**
* Call with the command returned by android_app_read_cmd() to do the
* default processing of the given command.
*
* Important: returns 0 if the app should exit. You must ALWAYS check for
* a zero return and, if found, exit your android_main() function.
* initial pre-processing of the given command. You can perform your own
* actions for the command after calling this function.
*/
int32_t android_app_exec_cmd(struct android_app* android_app, int8_t cmd);
void android_app_pre_exec_cmd(struct android_app* android_app, int8_t cmd);
/**
* Call with the command returned by android_app_read_cmd() to do the
* final post-processing of the given command. You must have done your own
* actions for the command before calling this function.
*/
void android_app_post_exec_cmd(struct android_app* android_app, int8_t cmd);
/**
* Dummy function you can call to ensure glue code isn't stripped.
*/
void app_dummy();
/**
* This is the function that application code must implement, representing