Android版本更新实例详解

private String url=”http://www.oschina.NET/uploads/osc-Android-v2.6.4-release.apk”; private String sdPath = “/sdcard/” + System.currentTimeMillis() + “yuyin.apk”; 

HttpUtils httpUtils=new HttpUtils(); //参数一:下载的路径 参数二:下载到sdpath的路径 参数三: httpUtils.download(url, sdPath, true, new RequestCallBack() {  @Override  public void onSuccess(ResponseInfo<File> arg0) {    mBtn.setText("下载完成");    //路径    String path = arg0.result.getPath();    File file = new File(path);    Intent intent = new Intent(Intent.ACTION_VIEW);      intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");     startActivity(intent);  }  @Override  public void onFailure(HttpException arg0, String arg1) {    mBtn.setText("下载失败");  }  @Override  public void onLoading(long total, long current, boolean isUploading) {    // TODO Auto-generated method stub    super.onLoading(total, current, isUploading);    mBtn.setText("正在下载.....");  }  @Override  public void onStart() {    super.onStart();    mBtn.setText("开始下载");  }});