public class MainActivity extends AppCompatActivity {
ListView list;
phpDown task;
ArrayList<ListItem> listItem = new ArrayList<ListItem>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
task = new phpDown();
ListAdapter adapter = new ListAdapter(getBaseContext(), R.layout.listitem, listItem);
list = (ListView)findViewById(R.id.list);
list.setAdapter(adapter);
}
private class ListAdapter extends ArrayAdapter<ListItem> {
private ArrayList<ListItem> itemList;
private Context context;
private int rowResourceId;
public ListAdapter(Context context, int textViewResourceId, ArrayList<ListItem> itemList){
super(context, textViewResourceId, itemList);
this.itemList = itemList;
this.context = context;
this.rowResourceId = textViewResourceId;
}
@NonNull
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if(view == null){
LayoutInflater vi = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = vi.inflate(this.rowResourceId, null);
}
ListItem item = itemList.get(position);
if(item != null){
TextView text_Singer = (TextView)view.findViewById(R.id.Singer);
text_Singer.setText("Singer: " + item.getData(1));
TextView text_Song = (TextView)view.findViewById(R.id.Song);
text_Song.setText("Song: " + item.getData(2));
//TextView text_AgeGroup = (TextView)view.findViewById(R.id.AgeGroup);
//text_AgeGroup.setText("AgeGroup: " + item.getData(3));
TextView text_Genre = (TextView)view.findViewById(R.id.Genre);
text_Genre.setText("Genre: " + item.getData(4));
/*TextView text_Gender = (TextView)view.findViewById(R.id.Gender);
text_Gender.setText("Gender: " + item.getData(5));
TextView text_Emotion = (TextView)view.findViewById(R.id.Emotion);
text_Emotion.setText("Emotion: " + item.getData(6));*/
TextView text_Album = (TextView)view.findViewById(R.id.Album);
text_Album.setText("Album: " + item.getData(7));
TextView text_Track = (TextView)view.findViewById(R.id.Track);
text_Track.setText("Track: " + item.getData(8));
ImageView img = (ImageView)view.findViewById(R.id.image);
Glide.with(img.getContext()).load(item.getData(9)).into(img);
}
return view;
}
}
private class phpDown extends AsyncTask<String, Integer, String> {
.........
void onPostExecute(String str) {
.......
try {
JSONObject root = new JSONObject(str);
JSONArray ja = root.getJSONArray("results");
for (int i = 0; i < ja.length(); i++) {
JSONObject jo = ja.getJSONObject(i);
id = jo.getString("id");
Singer = jo.getString("Singer");
Song = jo.getString("Song");
AgeGroup = jo.getString("AgeGroup");
Genre = jo.getString("Genre");
Gender = jo.getString("Gender");
Emotion = jo.getString("Emotion");
Album = jo.getString("Album");
Track = jo.getString("Track");
Image = jo.getString("ImageUrl");
listItem.add(new ListItem(id, Singer, Song, AgeGroup, Genre, Gender, Emotion, Album, Track, Image));
mysql로 데이터베이스를 만들고 php Json 형식으로 파싱받아와서 데이터를 어레이리스트에 저장한 후
리스트뷰로 출력하고 있습니다
이 과정에서 어플리케이션을 실행했을 때 어쩔 때는 제데로 화면에 띄워지고 어쩔 때는 아예 출력이 안되고 공백만 나옵니다..
제대로 출력이 되는 경우가 있는걸 보면 코드문제만은 아닌거 같기도한데..혹시 메모리가 남아있다거나 초기화가 안된다거나 그런 경우일까요?? 아예 출력이 안되면 코드를 다시짜겠는데 되다안되다해서 찝찝하네요 너무....
