android 简单打jar包

先建议一个moduel，先写一个下载图片代码：

public class LoadTest extends AsyncTask<Void,Void,byte[]>{

public static LoadTest loadtest;

private byte[] data;

private String url;    public setDataL listence;

public void setDataListence(setDataL l){        this.listence = l;    }    public byte[] getload(){

return data;    }

public void  setUrl(String s){        this.url = s;    }    @Override    protected byte[] doInBackground(Void... params) {        try {            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();            URL urlimage = new URL(url);            HttpURLConnection urlconn = (HttpURLConnection) urlimage.openConnection();            urlconn.setConnectTimeout(5000);            urlconn.setRequestMethod("GET");            int sumLenght = urlconn.getContentLength();            InputStream errorStream = urlconn.getErrorStream();            int code = urlconn.getResponseCode();            if (HttpURLConnection.HTTP_OK == code){                InputStream is = urlconn.getInputStream();                byte[] buff = new byte[512];                int len;                while ((len = is.read(buff))!= -1){                    outputStream.write(buff,0,len);

}                is.close();                outputStream.flush();                data = outputStream.toByteArray();

}

} catch (MalformedURLException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        return data;    }

@Override    protected void onPostExecute(byte[] datainfo) {        if (null != datainfo){

listence.getData(datainfo);        }else {

super.onPostExecute(datainfo);        }    }

public interface setDataL{        void getData(byte[] data);    }

}

打开moduel的gradle：写入代码：

task makeJar(type: Copy) {    delete ‘build/libs/myjar.jar‘    from(‘build/intermediates/bundles/release/‘)    into(‘build/libs/‘)    include(‘classes.jar‘)    rename(‘classes.jar‘, ‘myjar.jar‘)}//  在终端执行生成JAR包//  ./gradlew build//build.finalizedBy makeJar//  或者makeJar.dependsOn(build)// ./gradlew makeJar

打开终端机Terminal输入命令：gradview makeJar

生成的jar在\build\intermediates\bundles\release目录下。可以看到一个java标志如图：

这样就可以啦，导入其他的项目几可以使用了

demo下载地址：https://github.com/tiaodong/OkHttpTest

测试demo：https://github.com/tiaodong/JarTest