无法加载原生库 jni_latinime.so Android

Question

它给出错误并且无法加载 .so 文件。我在互联网上搜索并阅读了很多内容，但没有找到答案。我尝试使用 System.loadLibrary("jni_latinime") 但它再次失败。请给我任何建议。谢谢。

java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.android.inputmethod.latin-1/base.apk"],nativeLibraryDirectories=[/data/app/com.android.inputmethod.latin-1/lib/arm, /vendor/lib, /system/lib]]] couldn't find "libjni_latinime.so"
                                                                         at java.lang.Runtime.loadLibrary(Runtime.java:367)
                                                                         at java.lang.System.loadLibrary(System.java:1076)
                                                                         at com.android.inputmethod.latin.utils.JniUtils.<clinit>(JniUtils.java:33)
                                                                         at com.android.inputmethod.latin.utils.JniUtils.loadNativeLibrary(JniUtils.java:46)
                                                                         at com.android.inputmethod.latin.LatinIME.<clinit>(LatinIME.java:599)
                                                                         at java.lang.Class.newInstance(Native Method)
                                                                         at android.app.ActivityThread.handleCreateService(ActivityThread.java:2877)
                                                                         at android.app.ActivityThread.-wrap4(ActivityThread.java)
                                                                         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1437)
                                                                         at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                         at android.os.Looper.loop(Looper.java:148)
                                                                         at android.app.ActivityThread.main(ActivityThread.java:5443)
                                                                         at java.lang.reflect.Method.invoke(Native Method)
                                                                         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
                                                                         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)

Answer 1

1.设置NDK PATH

2.在 build.gradle 中添加这个

 sourceSets.main {
         jni.srcDirs = []
          jniLibs.srcDir 'src/main/libs'
     }

3.在SRC目录中创建一个Jni文件夹

4.Create- Android.mk--inside jni 文件夹-

5.在Android.mk文件中添加

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE    := "module name"//added inside system.load(); ** i used addjni**

LOCAL_SRC_FILES := Native.c   //create a native.c class
LOCAL_LDLIBS := -llog -ljnigraphics
include $(BUILD_SHARED_LIBRARY)

6.创建文件Application.mk---在jni文件夹中--- 并写下这个

  APP_ABI := all

7.在 MainActivity 中添加

 public class MainActivity extends AppCompatActivity {

 static {
     System.loadLibrary("addjni");
 }
 TextView sum;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_main);
     sum=(TextView)findViewById(R.id.sum);
     int as=Native.sumoftwo(210,15);
     Log.e("sum",as+"");
     sum.setText(as+"");

 }

}

8.新建NativeNDK.c

//在jni文件夹里面添加这个 //jave_packageName_Native(Classname)_(methodname) replace(.with -)

 include<string.h>
 include<jni.h>
 jint JNICALL Java_droider_Native_sumoftwo(JNIEnv*  env , jclass obj,jint   a,jint b)   

      {
        jint total=(a+b);
         return total;
       }

9.转到工作室终端并在里面输入命令

cd app\src\main>D:\android-ndk-r10d\android-ndk-r10d\ndk-build APP_PLATFORM=android-8 进入

10. main/src 中的 Native.c

 public class Native {
       public native static int sumoftwo(int a,int b);
        static {
                System.loadLibrary("addjni");
        } 
    }

11.从库中复制所有.so，如果存在则粘贴到jinLibs中，否则创建并粘贴

Answer 2

转到 LatinIME/native/jni 并使用 ndk-build 构建它..

（如果它包含错误，只需打开 Android.mk 并评论此行：

    # LOCAL_CFLAGS += -Werror -Wall -Wextra -Weffc++ -Wformat=2 -Wcast-qual -Wcast-align \
    #     -Wwrite-strings -Wfloat-equal -Wpointer-arith -Winit-self -Wredundant-decls \
    #     -Woverloaded-virtual -Wsign-promo -Wno-system-headers

这将构建 jni_latinime.so 文件... 您可以通过提供以下代码将其添加到您的 build.gradle：

sourceSets {
    main {
        jniLibs.srcDirs = ['LOCATION OF .so File']
    }
}