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1、新建项目NDKDemo3

2、新建com.example.shixm.ndkdemo3.MyNdk.java

3、右键main文件夹,New->Folder->JNI Folder

4、MainActivity中调用getMyString

TextView textView = (TextView) findViewById(R.id.textView);
MyNdk myNdk = new MyNdk();
textView.setText(myNdk.getMyString());

5、打开Module: app build.gradle,在defaultConfig中添加

android {

  xxxxx

  defaultConfig {

    xxxxx

ndk {
  moduleName "MyLibrary"
}
sourceSets.main {
  jni.srcDirs = []
  jniLibs.srcDir "src/main/libs"
}

  }

}

6、点击File->Setting->Tools->External Tools,点击“+”,添加如下:

注意:windows用ndk-build.cmd,MAC/Linux用ndk-build

7、右键com.example.shixm.ndkdemo3.MyNdk.javaNDK->java.h,可以看到控制台,同时jni文件夹下生成了文件com_example_shixm_ndkdemo4_MyNdk.h

 8、jni目录下新建MyLibrary.cpp文件,并编辑

9、jni目录下分别新建Android.mk与Application.mk

Android.mk
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := MyLibrary
LOCAL_SRC_FILES := MyLibrary.cpp
include $(BUILD_SHARED_LIBRARY)

 

Application.mk
APP_MODULES := MyLibrary
APP_ABI := all

 

10、右键jni文件夹,ndk->ndk-build,此时控制台

11、运行项目,至此操作完毕。

posted on 2016-04-29 20:45  鴻飛  阅读(114)  评论(0编辑  收藏  举报