Develop Reference

if i have an jsonarray and i display it in listview and want a specifec item from the list how to do it?

what im trying to do is look at the json pull all the names to a list view(save the imdbid of that names) and from there you can click on a movie and it will go to a new intent that will bring you the movie that you clicked on with its name summary and an image
im searching in a json with an array in it that looks like this(it based on what the user searched so this is one example...)
{"Search":[{"Title":"Batman Begins","Year":"2005","imdbID":"tt0372784","Type":"movie","Poster":"http://ia.media-imdb.com/images/M/MV5BNTM3OTc0MzM2OV5BMl5BanBnXkFtZTYwNzUwMTI3._V1_SX300.jpg"},{"Title":"Batman v Superman: Dawn of Justice","Year":"2016","imdbID":"tt2975590","Type":"movie","Poster":"http://ia.media-imdb.com/images/M/MV5BNTE5NzU3MTYzOF5BMl5BanBnXkFtZTgwNTM5NjQxODE#._V1_SX300.jpg"},{"Title":"Batman","Year":"1989","imdbID":"tt0096895","Type":"movie","Poster":"http://ia.media-imdb.com/images/M/MV5BMTYwNjAyODIyMF5BMl5BanBnXkFtZTYwNDMwMDk2._V1_SX300.jpg"},{"Title":"Batman Returns","Year":"1992","imdbID":"tt0103776","Type":"movie","Poster":"http://ia.media-imdb.com/images/M/MV5BODM2OTc0Njg2OF5BMl5BanBnXkFtZTgwMDA4NjQxMTE#._V1_SX300.jpg"},{"Title":"Batman Forever","Year":"1995","imdbID":"tt0112462","Type":"movie","Poster":"http://ia.media-imdb.com/images/M/MV5BNWY3M2I0YzItNzA1ZS00MzE3LThlYTEtMTg2YjNiOTYzODQ1XkEyXkFqcGdeQXVyMTQxNzMzNDI#._V1_SX300.jpg"},{"Title":"Batman & Robin","Year":"1997","imdbID":"tt0118688","Type":"movie","Poster":"http://ia.media-imdb.com/images/M/MV5BNTM1NTIyNjkwM15BMl5BanBnXkFtZTcwODkxOTQxMQ##._V1_SX300.jpg"},{"Title":"Batman: The Animated Series","Year":"1992–1995","imdbID":"tt0103359","Type":"series","Poster":"http://ia.media-imdb.com/images/M/MV5BMTU3MjcwNzY3NF5BMl5BanBnXkFtZTYwNzA2MTI5._V1_SX300.jpg"},{"Title":"Batman: Under the Red Hood","Year":"2010","imdbID":"tt1569923","Type":"movie","Poster":"http://ia.media-imdb.com/images/M/MV5BMTMwNDEyMjExOF5BMl5BanBnXkFtZTcwMzU4MDU0Mw##._V1_SX300.jpg"},{"Title":"Batman: The Dark Knight Returns, Part 1","Year":"2012","imdbID":"tt2313197","Type":"movie","Poster":"http://ia.media-imdb.com/images/M/MV5BMzIxMDkxNDM2M15BMl5BanBnXkFtZTcwMDA5ODY1OQ##._V1_SX300.jpg"},{"Title":"Batman: Mask of the Phantasm","Year":"1993","imdbID":"tt0106364","Type":"movie","Poster":"http://ia.media-imdb.com/images/M/MV5BMTMzODU0NTYxN15BMl5BanBnXkFtZTcwNDUxNzUyMQ##._V1_SX300.jpg"}],"totalResults":"310","Response":"True"}
so what i want to do is get the imdbid when he clicks on the listview which contains the movie name
this is what i tried:
JSONObject jsonObject = new JSONObject(finalJson);
JSONArray parentArray = jsonObject.getJSONArray("Search");
StringBuffer finalStringBuffer = new StringBuffer();
String imdbid ;
for (int i=0; i<parentArray.length(); i++){
JSONObject finalJsonObject = parentArray.getJSONObject(i);
String movieName = finalJsonObject.getString("Title");
nameOfMovie.add(movieName);
String year = finalJsonObject.getString("Year");
yearOfMovie.add(year);
String omdbID = finalJsonObject.getString("imdbID");
id.add(omdbID);
finalStringBuffer.append(movieName + " , " + year + " , " + omdbID + "\n");
imdbid = omdbID ;
}
}
catch (JSONException e) {
e.printStackTrace();
}
}
but how can i know the imdbid(which is in the movie name that is displayed in a list) that he cliked on?
listview code:
listViewInternetScreen.setClickable(true);
listViewInternetScreen.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long i) {
Intent intenttoEditScreen=new Intent(AddFromInternet.this, EditMovie.class);
setResult(RESULT_OK,intenttoEditScreen);
String jsonMovieName = String.valueOf(nameOfMovie);
String jsonMovieSummery = String.valueOf(yearOfMovie);
String jsonImageURL = String.valueOf(id);
intenttoEditScreen.putExtra("json", jsonMovieName);
intenttoEditScreen.putExtra("json", jsonMovieSummery);
intenttoEditScreen.putExtra("json", jsonImageURL);
startActivity(intenttoEditScreen);
}
});
and the search method:
btnGo = (Button) findViewById(R.id.btnGo);
assert btnGo != null;
btnGo.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//MAKE A SEARCH STRING AND PARSE THE RESULT
final String search = "http://www.omdbapi.com/?s=" + EtSearch.getText().toString();
Log.e("JSON", search);
new JSONParser().execute(search);
ArrayList<String> list = new ArrayList<>(nameOfMovie);
arrayAdapter = new ArrayAdapter<>(AddFromInternet.this,
android.R.layout.simple_list_item_1, list);
arrayAdapter.notifyDataSetChanged();
listViewInternetScreen.setAdapter(arrayAdapter);
Log.e("JSON MOVIE", String.valueOf(nameOfMovie));
}
});
thanks for any help :D

Step 1: Use Gson (and Retrofit, if you'd like) to simplify turning a JSON string into a list of Java objects
Step 2: Make a custom ArrayAdapter that loads this list of objects. Then, when you add an Item click listener, you can get that object from the list item you clicked, and start the Intent for showing the full info for that movie.
Additional step would be to make the Movie object Parcelable, so you can add the object to the Intent in one line, rather than each individual field it contains

Pass checked multiple images from one activity to another

I have a custom listview with checkbox imageview and textview and there is a button below listview. On clicking of that button i have to pass all the checked item details to another activity and show in other listview. I am able to pass selected value but not able to pass images. Images are in drawable folder. Please help me thanks.
Here is the code:
subscribe.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
String data = "";
ArrayList<Item> stList = ((OurServiceAdapter) nAdapter)
.getAllData();
for (int i = 0; i < stList.size(); i++) {
Item singleStudent = stList.get(i);
if (singleStudent.isCheckbox() == true) {
name.add(singleStudent.getName().toString());
img.add(singleStudent.getImage());
data = data + "\n" + singleStudent.getName().toString();
}
}
// byte[] imgs = singleStudent.getImage();
Intent intent = new Intent(ActivityOurServices.this, ActivityServicesForm.class);
intent.putStringArrayListExtra("key", name);
//intent.putIntegerArrayListExtra("img", img);
startActivity(intent);
}
});
}

you can pass all image as Integer arrayList :
//first : for each imageView inside list you must to set tag ,for example ;
imageView0.setTag(R.drawable.image_0);
imageView1.setTag(R.drawable.image_1);
.
.
.
imageViewN.setTag(R.drawable.image_N);
now when you press button :
ArrayList<Integer> checkedImageSrcId = new ArrayLIst<Integer> ;
for (int i = 0; i < stList.size(); i++) {
Item singleStudent = stList.get(i);
if (singleStudent.isCheckbox() == true) {
name.add(singleStudent.getName().toString());
// img.add(singleStudent.getImage());
// you most to get checked imageViews Tag and i dont have an idea about how to get those
checkedImageSrcId.add( getImageViewTagAtPostion(i));
data = data + "\n" + singleStudent.getName().toString();
}
}
// byte[] imgs = singleStudent.getImage();
Intent intent = new Intent(ActivityOurServices.this, ActivityServicesForm.class);
intent.putStringArrayListExtra("key", name);
intent.putIntegerArrayListExtra("img", checkedImageSrcId);
startActivity(intent);

How to get a part of a datastring from clicking a listview-item

I have a variable called current which holds the last clicked listview item data. The id of this data is to be used to query the db again for movies taht are similar.
The problem that current = id=17985, title=the matrix, year=1999 when all i need is the actual id-number. I have tried to use substring to only use the correct places of the string. This works for the matrix since its id is exactly 5 digits long, but as soon as i try to click movie with higher/lower amount of digits in its id of course it trips up.
String id = current.substring(4,9).trim().toString(); does not work for all movies.
Heres some code:
// search method: this is necessary cause this is the method thats first used and where the variable current is set. This is also the only method using three lines for getting data - id, title and year.
protected void search() {
data = new ArrayList<Map<String, String>>();
list = new ArrayList<String>();
EditText searchstring = (EditText) findViewById(R.id.searchstring);
String query = searchstring.getText().toString().replace(' ', '+');
String text;
text = searchquery(query);
try {
JSONObject res = new JSONObject(text);
JSONArray jsonArray = res.getJSONArray("movies");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
item = new HashMap<String, String>(2);
item.put("id",jsonObject.getString("id"));
item.put("title",jsonObject.getString("title"));
item.put("year", jsonObject.getString("year"));
data.add(item);
}
} catch (Exception e) {
e.printStackTrace();
}
aa = new SimpleAdapter(SearchTab.this, data,
R.layout.mylistview,
new String[] {"title", "year"},
new int[] {R.id.text1,
R.id.text2});
ListView lv = (ListView) findViewById(R.id.listView1);
lv.setAdapter(aa);
lv.setDividerHeight(5);
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int pos, long id) {
Map<String, String> s = data.get((int) id);
current = s.toString();
}});
}
// similar method: this tries to build a list from the fetched data from "current"-string. As you can see i try to use 4,9 to only get right numbers, but this fails with others. Best would be to only to be ble to get the ID which I cant seem to do. The toast is just to see what is beeing fetched, much like a system out print.
protected void similar() {
data = new ArrayList<Map<String, String>>();
list = new ArrayList<String>();
String id = current.substring(4,9).trim().toString();
Toast.makeText(getApplicationContext(), id, Toast.LENGTH_SHORT).show();
String text;
text = similarquery(id);
try {
JSONObject res = new JSONObject(text);
JSONArray jsonArray = res.getJSONArray("movies");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
item = new HashMap<String, String>(2);
item.put("title",jsonObject.getString("title"));
item.put("year", jsonObject.getString("year"));
data.add(item);
}
} catch (Exception e) {
e.printStackTrace();
}
aa = new SimpleAdapter(SearchTab.this, data,
R.layout.mylistview2,
new String[] {"title", "year"},
new int[] {R.id.text1,
R.id.text2});
ListView lv = (ListView) findViewById(R.id.listView1);
lv.setAdapter(aa);
lv.setDividerHeight(5);
}

Use current.split(",")[0].split("=")[1]
edit - assuming of course that id is always the first in the comma separated list and will always be a name value pair delimited by '='

If you want to solve it via substring then you shouldn't use a predefined .substring(4,9). Use something like that:
String item = "id=17985, title=the matrix, year=1999";
String id = item.substring(item.indexOf("id=") + 3, item.indexOf(" ", item.indexOf("id=") + 3) - 1);
System.out.println("Your ID is: " + id);
// Works also for "test=asdf, id=17985, title=the matrix, year=1999"
It gets the String between "id=" and the next " " (space).

Android CheckedTextVIew Clear All/Select All

I have a ListView that utilizes a CheckedTextView and a clear all button that has the following code:
btnClearAll.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
int listsize = songsList.size();
filelv = (ListView)getView().findViewById(R.id.FileList);
checkedCount = 0;
for (int i=0; i<listsize-1; i++) {
// if(currentPlayList.get(i).equals ("Checked")){
songsList.get(i).get("songCheckedStatus").equals("Not Checked");
filelv.setItemChecked(i, false);
}
}
});
When the code executes, each array "songsList" value is set to "Not Checked" correctly, so I know that the button is working. However, the CheckedTextView items are not "unticking".
Where am I going wrong?

olution:
As mentioned above, I just set up a global variable and passed whether I wanted to Select All or Clear All to it. Then I just called my function for populating the ListView. As the ListView is built, it checks the variable in a simple "if" statement, and adds whether to check or uncheck. The cursor adapter then does the check/uncheck as it reruns.
//The code for clearing all.
btnClearAll.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
checkedCount = 0;
GetMusicMode = "ClearAll";
GetMusic getMusic = new GetMusic();
getMusic.execute();
}
});
And this from my data grabber for the ListView.
....
String track_Title = null;
String track_Path = null;
String track_Artist = null;
String track_Album = null;
String track_ID = null;
String track_TrackNumber = null;
String track_AlbumID = null;
String track_ArtistID = null;
String track_Checked = null;
if (Constants.GetMusicMode.equals("SelectAll")){
track_Checked = "Checked";
}else{
track_Checked = "Not Checked";
}
.....
.....
HashMap<String, String> song = new HashMap<String, String>();
song.put("songTitle", track_Title);
song.put("songPath", track_Path);
song.put("songArtist", track_Artist);
song.put("songAlbum", track_Album);
song.put("songTrackNumber", track_TrackNumber);
song.put("songID", track_ID);
song.put("songAlbumID", track_AlbumID);
song.put("songArtistID", track_ArtistID);
song.put("songCheckedStatus", track_Checked);
// Adding each song to SongList
songsList.add(song);
....throw to cursor adapter
and finally, this section from the cursoradapter getview
if (songsList.get(position).get("songCheckedStatus").equals("Checked")){
holder.checkTextView.setChecked(true);
}else{
holder.checkTextView.setChecked(false);
}

Android listview header

i have an app that is showing data in listview ,but i want first row to be inflated by diferent layout , and i did that but since there is gona be a big number of listitems , i want to optimize listview and there is issue. i cant optimize listview when iam filling listview on that way , so how can i put content that should go in fist row inside listview header witch is inflated by some layout ,here is the code of Adapter
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.main);
LinearLayout content = (LinearLayout) findViewById(R.id.content);
LinearLayout refLayout = (LinearLayout) findViewById(R.id.refLayout);
refLayout.setVisibility(View.GONE);
mBtnNaslovnica = (Button) findViewById(R.id.mBtnNaslovnica);
mBtnNaslovnica.setSelected(true);
TextView txtView=(TextView) findViewById(R.id.scroller);
txtView.setSelected(true);
loadPage();
ImageButton mBtnRefresh = (ImageButton) findViewById(R.id.btnRefresh);
mBtnRefresh.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
new LoadingTask().execute(URL);
}
});
}
public void loadPage(){
ArrayList<HashMap<String, String>> homeList = new ArrayList<HashMap<String, String>>();
JSONObject jsonobj;
try {
jsonobj = new JSONObject(getIntent().getStringExtra("json"));
JSONObject datajson = jsonobj.getJSONObject("data");
JSONArray news = datajson.getJSONArray(TAG_NEWS);
JSONArray actual = datajson.getJSONArray("actual");
for(int i = 0; i < news.length(); i++){
JSONObject c = news.getJSONObject(i);
// Storing each json item in variable
String id = c.getString(TAG_ID);
String title = c.getString(TAG_TITLE);
String story = c.getString(TAG_STORY);
String shorten = c.getString(TAG_SH_STORY);
String author = c.getString(TAG_AUTHOR);
String datetime = c.getString(TAG_DATETIME);
String img = c.getString(TAG_IMG);
String big_img = c.getString(TAG_BIG_IMG);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_ID, id);
map.put(TAG_TITLE, title);
map.put(TAG_STORY, story);
map.put(TAG_IMG, img);
map.put(TAG_BIG_IMG, big_img);
map.put(TAG_DATETIME, datetime);
map.put(TAG_AUTHOR, author);
// adding HashList to ArrayList
homeList.add(map);}
for(int i = 0; i < actual.length(); i++){
JSONObject c = actual.getJSONObject(i);
// Storing each json item in variable
String id = c.getString(TAG_ACT_TIME);
String body = c.getString(TAG_ACT_BODY);
String anews = " | "+ id+ " " + body;
String cur_anews = ((TextView) findViewById(R.id.scroller)).getText().toString();
String complete = anews + cur_anews;
TextView anewstv = (TextView) findViewById(R.id.scroller);
anewstv.setText(complete);
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
list=(ListView)findViewById(R.id.list);
// Getting adapter by passing xml data ArrayList
adapter=new LazyAdapter(this, homeList);
list.setAdapter(adapter);
// Click event for single list row
list.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
String cur_title = ((TextView) view.findViewById(R.id.title)).getText().toString();
String cur_story = ((TextView) view.findViewById(R.id.einfo2)).getText().toString();
String cur_author = ((TextView) view.findViewById(R.id.einfo1)).getText().toString();
String cur_datetime = ((TextView) view.findViewById(R.id.tVdatetime)).getText().toString();
String cur_actual = ((TextView) findViewById(R.id.scroller)).getText().toString();
ImageView cur_img = (ImageView) view.findViewById(R.id.list_image);
String cur_img_url = (String) cur_img.getTag();
Intent i = new Intent("com.example.androidhive.CURENTNEWS");
i.putExtra("CUR_TITLE", cur_title);
i.putExtra("CUR_STORY", cur_story);
i.putExtra("CUR_AUTHOR", cur_author);
i.putExtra("CUR_DATETIME", cur_datetime);
i.putExtra("CUR_IMG_URL", cur_img_url);
i.putExtra("CUR_ACTUAL", cur_actual);
startActivity(i);
}
});
}
public void reloadPage(String jsonstring){
ArrayList<HashMap<String, String>> homeList = new ArrayList<HashMap<String, String>>();
JSONObject jsonobj;
try {
jsonobj = new JSONObject(jsonstring);
JSONObject datajson = jsonobj.getJSONObject("data");
JSONArray news = datajson.getJSONArray(TAG_NEWS);
JSONArray actual = datajson.getJSONArray("actual");
for(int i = 0; i < news.length(); i++){
JSONObject c = news.getJSONObject(i);
// Storing each json item in variable
String id = c.getString(TAG_ID);
String title = c.getString(TAG_TITLE);
String story = c.getString(TAG_STORY);
String shorten = c.getString(TAG_SH_STORY);
String author = c.getString(TAG_AUTHOR);
String datetime = c.getString(TAG_DATETIME);
String img = c.getString(TAG_IMG);
String big_img = c.getString(TAG_BIG_IMG);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_ID, id);
map.put(TAG_TITLE, title);
map.put(TAG_STORY, story);
map.put(TAG_IMG, img);
map.put(TAG_BIG_IMG, big_img);
map.put(TAG_DATETIME, datetime);
map.put(TAG_AUTHOR, author);
// adding HashList to ArrayList
homeList.add(map);}
for(int i = 0; i < actual.length(); i++){
JSONObject c = actual.getJSONObject(i);
// Storing each json item in variable
String id = c.getString(TAG_ACT_TIME);
String body = c.getString(TAG_ACT_BODY);
String anews = " | "+ id+ " " + body;
String cur_anews = ((TextView) findViewById(R.id.scroller)).getText().toString();
String complete = anews + cur_anews;
TextView anewstv = (TextView) findViewById(R.id.scroller);
anewstv.setText(complete);
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
list=(ListView)findViewById(R.id.list);
// Getting adapter by passing xml data ArrayList
adapter=new LazyAdapter(this, homeList);
list.setAdapter(adapter);
// Click event for single list row
list.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
String cur_title = ((TextView) view.findViewById(R.id.title)).getText().toString();
String cur_story = ((TextView) view.findViewById(R.id.einfo2)).getText().toString();
String cur_author = ((TextView) view.findViewById(R.id.einfo1)).getText().toString();
String cur_datetime = ((TextView) view.findViewById(R.id.tVdatetime)).getText().toString();
String cur_actual = ((TextView) findViewById(R.id.scroller)).getText().toString();
ImageView cur_img = (ImageView) view.findViewById(R.id.list_image);
String cur_img_url = (String) cur_img.getTag();
Intent i = new Intent("com.example.androidhive.CURENTNEWS");
i.putExtra("CUR_TITLE", cur_title);
i.putExtra("CUR_STORY", cur_story);
i.putExtra("CUR_AUTHOR", cur_author);
i.putExtra("CUR_DATETIME", cur_datetime);
i.putExtra("CUR_IMG_URL", cur_img_url);
i.putExtra("CUR_ACTUAL", cur_actual);
startActivity(i);
}
});
}
public void startNewActivity(){
}
public class LoadingTask extends AsyncTask<String, Object, Object>{
XMLParser parser = new XMLParser();
JSONParser jParser = new JSONParser();
LinearLayout content = (LinearLayout) findViewById(R.id.content);
LinearLayout refLayout = (LinearLayout) findViewById(R.id.refLayout);
protected void onPreExecute(){
content.setClickable(false);
refLayout.setVisibility(View.VISIBLE);
}
#Override
protected Object doInBackground(String... params) {
// TODO Auto-generated method stub
String URL = params[0];
JSONObject json = jParser.getJSONFromUrl(URL);
//String xml = parser.getXmlFromUrl(URL); // getting XML from URL
// getting DOM element
return json;
}
protected void onPostExecute(Object result){
String json;
json = result.toString();
reloadPage(json);
refLayout.setVisibility(View.GONE);
}
}
}

If I got your point - you can go with 2 approaches:
Add headerView to the list. That is just easy as inflate your View and pass it to
addHeaderView(View) of your List. Note: you must add this view before setting the adapter, or it will throw the exception.
However, as your 'header' is representing the same data as all other items, but has different layout - I suggest not to use Header here. Instead, try to implement getItemViewType() in your adapter. http://developer.android.com/reference/android/widget/BaseAdapter.html#getItemViewType(int)
If you'll do - you'll have ability to check which type of layout to return in getView() method. And Android will take care of optimizing and reusing your inflated Views for you, so you can be sure that convertView, passed to your getView will be of the right type and layout.
Please let me know if I should explain with more details.

You can do it like this:
...
convertView.setOnClickListener(new OnItemClick(position));
...
public class OnItemClick implements OnClickListener {
private final int index;
public OnItemClick(int _index) {
this.index = _index;
}
#Override
public void onClick(View v) {
//dosomething
}
}