package cn.flightfeather.thirdappmodule.task;
|
|
import android.app.Activity;
|
import android.os.Environment;
|
import android.util.Log;
|
import android.widget.ImageView;
|
import android.widget.Toast;
|
|
import java.io.BufferedInputStream;
|
import java.io.File;
|
import java.io.FileOutputStream;
|
import java.io.IOException;
|
import java.io.InputStream;
|
|
import cn.flightfeather.thirdappmodule.CommonApplication;
|
import cn.flightfeather.thirdappmodule.R;
|
import cn.flightfeather.thirdappmodule.bean.entity.Mediafile;
|
import okhttp3.ResponseBody;
|
import retrofit2.Call;
|
import retrofit2.Callback;
|
import retrofit2.Response;
|
import retrofit2.http.GET;
|
import retrofit2.http.Url;
|
|
/**
|
* Created by note_ff_1602 on 2018/2/9.
|
* 下载图片并显示的task
|
*/
|
|
public class DownloadAndSetImageTask {
|
private Mediafile mediafile;
|
private ImageView imageView;
|
private DownloadService downloadService;
|
private CommonApplication application;
|
private Activity activity;
|
|
//下载并显示图片
|
public DownloadAndSetImageTask(Mediafile mediafile, ImageView imageView, Activity activity) {
|
this.mediafile = mediafile;
|
this.imageView = imageView;
|
this.activity = activity;
|
application = (CommonApplication) activity.getApplicationContext();
|
}
|
//只下载
|
public DownloadAndSetImageTask(Mediafile mediafile, Activity activity) {
|
this.mediafile = mediafile;
|
application = (CommonApplication) activity.getApplicationContext();
|
try {
|
this.activity = (Activity) activity;
|
} catch (Exception e) {
|
e.printStackTrace();
|
}
|
}
|
|
//执行下载任务
|
public void execute(){
|
if (imageView!=null){
|
imageView.setImageResource(R.drawable.icon_add_photo_waite);
|
}
|
downloadService = application.getRetrofitImage().create(DownloadService.class);
|
String url = mediafile.getExtension1()+mediafile.getGuid()+".jpg";
|
Call<ResponseBody> downloadImage = downloadService.downloadImage(url);
|
downloadImage.enqueue(new Callback<ResponseBody>() {
|
@Override
|
public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
|
if (response.body()!=null){
|
File file = writeResponseBodyToDisk(mediafile,response.body());
|
if (file!=null&&imageView!=null){
|
setImage(file,imageView);
|
}
|
}else if (response.errorBody()!=null){
|
// Toast.makeText(application, "获取图片失败", Toast.LENGTH_SHORT).show();
|
Log.e("downloadImage:",response.errorBody().toString());
|
}
|
|
}
|
|
@Override
|
public void onFailure(Call<ResponseBody> call, Throwable t) {
|
Toast.makeText(application, "联网失败", Toast.LENGTH_SHORT).show();
|
Log.e("downloadImage:",t.toString());
|
}
|
});
|
}
|
|
//将下载的图片写入磁盘
|
public File writeResponseBodyToDisk(Mediafile mediafile, ResponseBody body) {
|
if(body==null){
|
Toast.makeText(application, "图片源错误", Toast.LENGTH_SHORT).show();
|
return null;
|
}
|
try {
|
InputStream is = body.byteStream();
|
File file = new File(Environment.getExternalStorageDirectory(),(mediafile.getPath() + mediafile.getDescription()));
|
if (file.exists()) {
|
file.delete();
|
file = new File(Environment.getExternalStorageDirectory(),(mediafile.getPath() + mediafile.getDescription()) );
|
}
|
file.getParentFile().mkdirs();
|
FileOutputStream fos = new FileOutputStream(file);
|
BufferedInputStream bis = new BufferedInputStream(is);
|
byte[] buffer = new byte[1024];
|
int len;
|
while ((len = bis.read(buffer)) != -1) {
|
fos.write(buffer, 0, len);
|
}
|
fos.flush();
|
fos.close();
|
bis.close();
|
is.close();
|
return file;
|
} catch (IOException e) {
|
e.printStackTrace();
|
return null;
|
}
|
}
|
//显示图像
|
private void setImage(File file,ImageView imageView){
|
if (file!=null&&imageView!=null){
|
SetImageTask task = new SetImageTask(file,imageView, activity);
|
task.execute();
|
}
|
}
|
|
interface DownloadService{
|
@GET
|
Call<ResponseBody> downloadImage(@Url String fileUrl);
|
}
|
}
|
