Android的完成（）活动不工作

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我在codeS得到这个错误，当我使用完成（）; 的方法完成（）是未定义的类型SaveImageTask。我错过了一些声明或任何东西。有人可以请指导我在此。

公共类SaveImageTask扩展的AsyncTask＆LT;字符串，字符串，字符串＆GT; {            私人上下文的背景下;            私人ProgressDialog pDialog;            布尔bCancelled = FALSE;            公共SaveImageTask（上下文的背景下）{                this.context =背景;            }            @覆盖            在preExecute保护无效（）{                // TODO自动生成方法存根                super.on preExecute（）;                pDialog =新ProgressDialog（背景）;                pDialog.setIndeterminate（假）;                pDialog.setCancelable（真）;                pDialog.setOnCancelListener（cancelListener）;                pDialog.show（）;            }            @覆盖            保护字符串doInBackground（字符串参数... args）{                // TODO自动生成方法存根                // 我的东西                返回null;            }            @覆盖            保护无效onPostExecute（字符串参数）{                // TODO自动生成方法存根                pDialog.dismiss（）;            }            OnCancelListener cancelListener =新OnCancelListener（）{                @覆盖                公共无效onCancel（DialogInterface为arg0）{                    bCancelled = TRUE;                    SaveImageTask.this.finish（）; //＆LT;＆LT; ----的方法完成（）是未定义的类型SaveImageTask                }            };        }

解决方案

只要使用，

（活动（上下文））完成（）。

编辑：

其实你要投你的上下文活动上下文，

那么你可以使用完成（）活动的方法，

喜欢的东西，

私人活动范围内;公共SaveImageTask（上下文的背景下）{                this.context =（活动）范围内;            }

现在，只需

context.finish（）;

I got this error in my codes when i use finish(); "The method finish() is undefined for the type SaveImageTask" . Am I missing some declarations or anything. Can someone please guide me on this.

public class SaveImageTask extends AsyncTask<String , String , String> { private Context context; private ProgressDialog pDialog; boolean bCancelled=false; public SaveImageTask(Context context) { this.context = context; } @Override protected void onPreExecute() { // TODO Auto-generated method stub super.onPreExecute(); pDialog = new ProgressDialog(context); pDialog.setIndeterminate(false); pDialog.setCancelable(true); pDialog.setOnCancelListener(cancelListener); pDialog.show(); } @Override protected String doInBackground(String... args) { // TODO Auto-generated method stub // MY STUFF return null; } @Override protected void onPostExecute(String args) { // TODO Auto-generated method stub pDialog.dismiss(); } OnCancelListener cancelListener=new OnCancelListener(){ @Override public void onCancel(DialogInterface arg0){ bCancelled=true; SaveImageTask.this.finish(); // <<----"The method finish() is undefined for the type SaveImageTask" } }; }

解决方案

Just use,

(Activity(context)).finish();

EDIT:

Actually you have to cast your context to Activity Context,

then you can use finish() method of Activity,

Something like,

private Activity context; public SaveImageTask(Context context) { this.context = (Activity)context; }

now, just

context.finish();