Question

我在Android NDK环境中编译了* .cpp文件。但是，我看到了这个混乱。

dohyeon@ubuntu:/opt/android-ndk-r9d/jni$ ../ndk-build
[armeabi] Compile++ thumb: CPPTETRIS <= main.cpp
/opt/android-ndk-r9d/jni/main.cpp:3:20: fatal error: iostream: No such file or directory
compilation terminated.
make: *** [/opt/android-ndk-r9d/obj/local/armeabi/objs/CPPTETRIS/main.o] Error 1
dohyeon@ubuntu:/opt/android-ndk-r9d/jni$

我的c ++文件名是main.cpp和plane.cpp。

我的Andorid.mk文件

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_LDLIBS := -llog

APP_STL := gnustl_static
APP_STL := stlport_static

include $(CLEAR_VARS)

LOCAL_MODULE := CPPTETRIS
LOCAL_SRC_FILES := main.cpp plane.cpp

LOCAL_C_INCLUDES := $(LOCAL_PATH)/include-all

include $(BUILD_EXECUTABLE)

我想知道为什么这样做。请帮帮我。

Answer 1

在我的情况下，APP_STL定义应该在./jni/ Application.mk 文件中，而不是在Android.mk文件中。

Answer 2

try this code..

static {
        System.loadLibrary("CPPTETRIS");
    }

将以上行添加到oncreate方法上面的活动..

followed by your jni in android.mk file.. and also add android tools add nativetools.
LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)
APP_OPTIM    := debug
ndk-build APP_ABI=x86 NDK_DEBUG=1

LOCAL_MODULE    := CPPTETRIS
LOCAL_CFLAGS = -DFIXED_POINT -DUSE_KISS_FFT -DEXPORT="" -UHAVE_CONFIG_H
LOCAL_C_INCLUDES := $(LOCAL_PATH)/include

LOCAL_SRC_FILES := \
./libspeex/bits.c \
./yourcppfilename.c

include $(BUILD_SHARED_LIBRARY)

iostream：Android NDK环境中没有此类文件或目录

2 个答案: