package com.example.demo1;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.net.HttpURLConnection;

import java.net.URL;

import com.tiffdecoder.TiffDecoder;

import android.app.Activity;

import android.graphics.Bitmap;

import android.os.AsyncTask;

import android.widget.ImageView;

public class DownloadImagesTask extends AsyncTask<Object, Void, Bitmap> {

    ImageView imageView = null;

    Activity activity = null;

    @Override

    protected Bitmap doInBackground(Object... parameters) {

        this.imageView = (ImageView)parameters[0];

        this.activity = (Activity)parameters[1];

        try {

            return download_Image((String)imageView.getTag());

        } catch (IOException e) {

            e.printStackTrace();

        }

        return null;

    }

    @Override

    protected void onPostExecute(Bitmap result) {

        if(result != null)

            imageView.setImageBitmap(result);

    }

    private Bitmap download_Image(String url) throws IOException {

        File file = downloadFile(url);

        TiffDecoder.nativeTiffOpen(file.getPath());

        int[] pixels = TiffDecoder.nativeTiffGetBytes();

        Bitmap mBitmap = Bitmap.createBitmap(pixels, TiffDecoder.nativeTiffGetWidth(), TiffDecoder.nativeTiffGetHeight(),Bitmap.Config.ARGB_8888);

        TiffDecoder.nativeTiffClose();

        return mBitmap;

    }

    private File downloadFile(String strUrl) throws IOException

    {

        URL url = new URL(strUrl);

        HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();

        urlConnection.setRequestMethod("GET");

        urlConnection.setDoOutput(true);

        urlConnection.connect();

        File file = File.createTempFile("myfile", ".tif", this.activity.getCacheDir());

        if(file.exists())

            file.delete();

        file.createNewFile();

        FileOutputStream fileOutput = new FileOutputStream(file);

        InputStream inputStream = urlConnection.getInputStream();

        byte[] buffer = new byte[1024];

        int bufferLength = 0;

        while ( (bufferLength = inputStream.read(buffer)) > 0 ) {

            fileOutput.write(buffer, 0, bufferLength);

        }

        fileOutput.close();

        return file;

    }

}

public class MainActivity extends Activity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        StrictMode.setThreadPolicy(new

                StrictMode.ThreadPolicy.Builder().detectDiskReads().detectDiskWrites().detectNetwork().penaltyLog().build());

                        StrictMode.setVmPolicy(

                new StrictMode.VmPolicy.Builder().detectLeakedSqlLiteObjects().detectLeakedClosableObjects().penaltyLog().penaltyDeath().build());

                        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,

                                WindowManager.LayoutParams.FLAG_FULLSCREEN);

        ImageView image = (ImageView)this.findViewById(R.id.image);

        image.setTag("http://xibei1-image.xxx.com/00006009b4673bbc-ff2a-49bd-91fe-764c01b2acce01.tif");

        new DownloadImagesTask().execute(image,this);

    }

}