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GC??Java??????????????????????????????Android??????Java????????????????????????????????????native???????Bitmap????????????????????????????native???????????????

????????????GC???????????GC??????????????????????

???native???????????GC

Android?N?????NativeAllocationRegistry????????????GC??Java???????native?????????????????????????Java?????Java??????????????native???????????Java???????native??????????????Java????????????GC???????native??????????????????????????NativeAllocationRegistry??GC????????????native?????????????GC?

??????????GC?????Java???????????native??????????????NativeAllocationRegistry???????Java??native???????????native????????????

???Java???????native????

NativeAllocationRegistry?????Cleaner????????????Cleaner???????????????

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Bitmap?????NativeAllocationRegistry???native???????????Bitmap?????????

mNativePtr = nativeBitmap; final int allocationByteCount = getAllocationByteCount(); NativeAllocationRegistry registry; if (fromMalloc) { registry = NativeAllocationRegistry.createMalloced(Bitmap.class.getClassLoader(), nativeGetNativeFinalizer(), allocationByteCount); } else { registry = NativeAllocationRegistry.createNonmalloced(Bitmap.class.getClassLoader(), nativeGetNativeFinalizer(), allocationByteCount); } registry.registerNativeAllocation(this, nativeBitmap);

??????????????NativeAllocationRegistry??Java?????native????????????NativeAllocationRegistry???????registerNativeAllocation????????????native????????

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??????Android-360????????????????????????????????????????APP??????????????????????????PDF??????????Android?????????????721?????????????????Android?????????????????????????