sdcard에서 JSON을 구문 분석하려고합니다.JSON을 구문 분석하는 중에 오류가 발생했습니다.
The method execute(String...) in the type AsyncTask<String,Void,SimpleAdapter> is not applicable for the arguments (StringBuilder)
가이 코드를 해결하기 위해 일주일 이상을 지출하지만 난 그것을 만든 couln't : 나는 간단한 어댑터를 AsyncTask를 위해 실행하려고하면, 나는 다음과 같은 오류를 얻고있다. 내 코드는 다음과 같습니다
이public class Jeans extends Activity {
private final String JSON_file = "country.json";
File jsonFile;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.baby1_1);
/** Getting Cache Directory */
File cDir = ExternalStorage.getSDCacheDir(this, "json_files");
/** Getting a reference to temporary file, if created earlier */
jsonFile = new File(cDir.getPath() + "/" + JSON_file) ;
String strLine="";
StringBuilder strJson = new StringBuilder();
/** Reading contents of the temporary file, if already exists */
try {
FileReader fReader = new FileReader(jsonFile);
BufferedReader bReader = new BufferedReader(fReader);
/** Reading the contents of the file , line by line */
while((strLine=bReader.readLine()) != null ){
strJson.append(strLine);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}catch(IOException e){
e.printStackTrace();
}
System.out.println(strJson);
/** The parsing of the xml data is done in a non-ui thread */
// ListViewLoaderTask listViewLoaderTask = new ListViewLoaderTask();
/** In here i'm getting the error */
new ListViewLoaderTask().execute(strJson);
}
private class ListViewLoaderTask extends AsyncTask<String, Void, SimpleAdapter>{
JSONObject jObject;
/** Doing the parsing of xml data in a non-ui thread */
@Override
protected SimpleAdapter doInBackground(String... strJson) {
try{
jObject = new JSONObject(strJson[0]);
CountryJSONParser countryJsonParser = new CountryJSONParser();
countryJsonParser.parse(jObject);
}catch(Exception e){
Log.d("JSON Exception1",e.toString());
}
CountryJSONParser countryJsonParser = new CountryJSONParser();
List<HashMap<String, String>> countries = null;
try{
/** Getting the parsed data as a List construct */
countries = countryJsonParser.parse(jObject);
}catch(Exception e){
Log.d("Exception",e.toString());
}
/** Keys used in Hashmap */
String[] from = { "country","flag","details"};
/** Ids of views in listview_layout */
int[] to = { R.id.tv_country,R.id.iv_flag,R.id.tv_country_details};
/** Instantiating an adapter to store each items
* R.layout.listview_layout defines the layout of each item
*/
SimpleAdapter adapter = new SimpleAdapter(getBaseContext(), countries, R.layout.lv_layout, from, to);
return adapter;
}
/** Invoked by the Android system on "doInBackground" is executed completely */
/** This will be executed in ui thread */
@Override
protected void onPostExecute(SimpleAdapter adapter) {
/** Getting a reference to listview of main.xml layout file */
ListView listView = (ListView) findViewById(R.id.lv_countries);
/** Setting the adapter containing the country list to listview */
listView.setAdapter(adapter);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
누군가가 나를 위해이 코드를하십시오 해결하십시오.
고마워. 이것이 내가 원했던 것이다. – Kabil
Blaine이 질문에 답하십시오 : http://stackoverflow.com/questions/18302964/need-help-on-json-parsing-2-issues – Kabil