这只能使用JNI来完成,因为dex引擎处理唤醒锁控制。有一点的代码张贴忽略了所有的错误检查和异常处理在这里:http://irrlicht.sourceforge.net/forum/viewtopic.php?f=9&t=50228 (无耻地复制&粘贴的谷歌阅读器如果链接曾经打破)
// constructing the lock
JNIEnv* jni = 0;
Context->App->activity->vm->AttachCurrentThread(&jni, NULL);
if (jni)
{
jclass classNativeActivity = jni->FindClass("android/app/NativeActivity");
jclass classPowerManager = jni->FindClass("android/os/PowerManager");
if (classPowerManager)
{
jmethodID idNativeActivity_getAppContext = jni->GetMethodID(classNativeActivity, "getApplicationContext", "()Landroid/content/Context;");
jobject AppContext = jni->CallObjectMethod(Context->App->activity->clazz, idNativeActivity_getAppContext);
if (AppContext)
{
jmethodID idNativeActivity_getSystemService = jni->GetMethodID(classNativeActivity, "getSystemService", "(Ljava/lang/String;)Ljava/lang/Object;");
jstring POWER_SERVICE = jni->NewStringUTF("power");
jobject PowerManager = jni->CallObjectMethod(AppContext, idNativeActivity_getSystemService, POWER_SERVICE);
if (PowerManager)
{
jmethodID idPowerManager_newWakeLock = jni->GetMethodID(classPowerManager, "newWakeLock", "(ILjava/lang/String;)Landroid/os/PowerManager$WakeLock;");
int SCREEN_BRIGHT_WAKE_LOCK = 0x0000000a;
long int ON_AFTER_RELEASE = 0x20000000;
jstring jWakeLockTag = jni->NewStringUTF("com.entity.Polygame.MY_BRIGHT_SCREEN_LOCK_LOL");
WakeLock = jni->CallObjectMethod(PowerManager, idPowerManager_newWakeLock, SCREEN_BRIGHT_WAKE_LOCK | ON_AFTER_RELEASE, jWakeLockTag);
debugLog("constructed wake lock");
jni->DeleteLocalRef(jWakeLockTag);
}
jni->DeleteLocalRef(POWER_SERVICE);
}
}
Context->App->activity->vm->DetachCurrentThread();
}
// acquire/release (the lock is in "released" state when first constructed)
JNIEnv* jni = 0;
Context->App->activity->vm->AttachCurrentThread(&jni, NULL);
if (jni)
{
jclass wakeLock = jni->FindClass("android/os/PowerManager$WakeLock");
if (locked) to acquire the lock
{
jmethodID idWakeLock_acquire = jni->GetMethodID(wakeLock, "acquire", "()V");
jni->CallVoidMethod(WakeLock, idWakeLock_acquire);
debugLog("acquired wake lock");
}
else // release the lock
{
jmethodID idWakeLock_release = jni->GetMethodID(wakeLock, "release", "()V");
jni->CallVoidMethod(WakeLock, idWakeLock_release);
debugLog("released wake lock");
}
Context->App->activity->vm->DetachCurrentThread();
Active = locked;
}
我不知道通过NDK支持获取或释放WakeLock的方式。 – CommonsWare
kewl ..为什么评论你缺乏知识? – MollyCat
在StackOverflow上,很多问题都被问到,并且没有答案。对于像你这样的问题(“告诉我如何去做X”),提问的人不知道是否缺少答案意味着没有办法做X,或者没有人知道提供了答案。在其中一些情况下,我会发表评论,表明我认为答案是“没有办法做X”,如果你没有得到任何实际的答案,所以你有办法解释沉默。如果我*积极* X不能完成,我会将其作为答案发布。 – CommonsWare