Question

我想在某些活动的启动画面上为应用的API加载数据。所以我从该活动中删除了异步任务，并在启动画面中写入。我希望启动画面应该在handler.i.e SPLASH_TIME_OUT中提供的同时加载，并且导航数据应该在着陆活动中加载。如果在提出问题时有任何错误，请纠正我。基本上想要在启动画面上加载数据而不会花费更多时间。这是代码段。

new Handler().postDelayed(new Runnable() {
        public void run() {
              // After 5 seconds redirect to another intent
            if(CommonUtils.getSavedPreferences(getApplicationContext(), Constants.ACCESS_TOKEN).length()>0)
            {
                  Intent i=new Intent(SplashActivity.this,DashBoardActivity.class);
                  SplashAsync async=new SplashAsync();
                  async.execute("");
                  i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                  startActivity(i);
            }else{
                  Intent i=new Intent(SplashActivity.this,LoginActivity.class);
                  i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                  startActivity(i);
            }



            //Remove activity
           // finish();
        }
    }, SPLASH_TIME_OUT); //it is set to 3000

异步任务

 public class SplashAsync extends AsyncTask<String, Void, String>{

    private Dialog mDialog;

    private String response = null;

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        try {
            mDialog = new Dialog(SplashActivity.this, android.R.style.Theme_Translucent);          
            mDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
            mDialog.setContentView(R.layout.loading);
            mDialog.setCancelable(true);
            mDialog.show();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @Override
    protected String doInBackground(String... params) {

        response = callForDirectoryRequest();
        System.out.println(response);

        return response;
    }

    @Override
    protected void onPostExecute(String result) {

        try{
        super.onPostExecute(result);

        if (mDialog != null) {
            mDialog.dismiss();

        }

        Gson gson = new Gson();






     mMemberResponseParser = gson.fromJson(response,

                new TypeToken<List<MemberResponseParser>>(){}.getType());    

        }
        catch (Exception e) {
            // TODO: handle exception
            e.printStackTrace();
        }

    }

    private String callForDirectoryRequest() {


        String url = Constants.DIRECTORY_URL+"member_email="+CommonUtils.getSavedPreferences(getApplicationContext(), Constants.MEMBER_EMAIL)+"&member_token="+CommonUtils.getSavedPreferences(getApplicationContext(), Constants.ACCESS_TOKEN);

        Log.e("", "URL IS NOW " + url);

        try {


            @SuppressWarnings("deprecation")
            StringEntity stringEntity = new StringEntity("");

            ServiceCall mServiceCall=new ServiceCall(getApplicationContext(), url, stringEntity);



            response = mServiceCall.getHttpGetServiceResponse();
            System.out.println("################### Response:"+ response);

        } catch (Exception e) {
            e.printStackTrace();
        }

        return response;


    }

}

有人可以为此提供帮助吗？

想在eclipse中从处理程序调用异步任务

0 个答案: