Mit Android Studio können keine Protokollnachrichten von JNI gedruckt werden
Error bekomme ich:
error: undefinierter Verweis auf '__android_log_print'
Ich habe diese Zeile bereits zu meiner CPP-Datei hinzugefügt:
#include <android/log.h>
Ich habe es mit beiden versucht:__ android_log_print und__ android_log_write
Ich habe in meiner Android.mk-Datei (die ich manuell kompiliere) auch eine Verknüpfung zur Protokollierungsbibliothek erstellt.
LOCAL_LDLIBS: = -llog
Ich habe auch verschiedene Alternativen ausprobiert, die ich gefunden habe:
LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog
Hier ist mein Android.mk
LOCAL_PATH := $(call my-dir)
#used to skip re-compiling libraw
#include $(CLEAR_VARS)
#LOCAL_MODULE := libraw_r
#LOCAL_SRC_FILES := ../obj/local/armeabi/libraw_r.so
#LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/libraw
#include $(PREBUILT_SHARED_LIBRARY)
#used for compiling libraw
include $(CLEAR_VARS)
LOCAL_CFLAGS += -I$(SYSROOT)/usr/lib/include/libraw -pthread -w
LOCAL_CXXFLAGS += -I$(SYSROOT)/usr/lib/include/libraw -pthread -w
LOCAL_MODULE := libraw_r # name of your module
LOCAL_LDLIBS += -L$(SYSROOT)/usr/lib -lstdc++ # libraries to link against, lstdc++ is auto-linked
LOCAL_SRC_FILES := internal/dcraw_common.cpp internal/dcraw_fileio.cpp internal/demosaic_packs.cpp src/libraw_cxx.cpp src/libraw_c_api.cpp
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/libraw
include $(BUILD_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := armapi
LOCAL_SRC_FILES := armapi.cpp
LOCAL_SHARED_LIBRARIES := libraw_r
include $(BUILD_SHARED_LIBRARY)
LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog
Und hier ist die build.gradle-Datei:
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:1.0.0+'
}
}
apply plugin: 'android'
dependencies {
compile fileTree(dir: 'libs', include: '*.jar')
}
android {
compileSdkVersion 21
buildToolsVersion "21.1.2"
defaultConfig {
ndk {
moduleName "armapi"
ldLibs "log"
}
}
sourceSets {
main {
manifest.srcFile 'AndroidManifest.xml'
jniLibs.srcDir 'libs' // use the jni .so compiled from the manual ndk-build command
jni.srcDirs = [] //disable automatic ndk-build call
java.srcDirs = ['src']
resources.srcDirs = ['src']
aidl.srcDirs = ['src']
renderscript.srcDirs = ['src']
res.srcDirs = ['res']
assets.srcDirs = ['assets']
}
// Move the tests to tests/java, tests/res, etc...
instrumentTest.setRoot('tests')
// Move the build types to build-types/<type>
// For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...
// This moves them out of them default location under src/<type>/... which would
// conflict with src/ being used by the main source set.
// Adding new build types or product flavors should be accompanied
// by a similar customization.
debug.setRoot('build-types/debug')
release.setRoot('build-types/release')
}
}