I am trying to create a layout, that shows current 3 hour lessons along with the time and date with room number.
possible screens:
The room and time/date is always static at the top and the rest would be dynamic from calls in SQL from JSON.
data = idleResponse.getJSONArray("lecture");
ArrayList<String> lects = new ArrayList<String>();
for (int i = 0; i < data.length(); i++) {
JSONObject jObj = data.getJSONObject(i);
String time = jObj.getString("startTime"); // to do.substring(0, 4);
String moduleName = jObj.getString("moduleName");
lects.add(time + " " + moduleName);
}
String[] lectureList = new String[lects.size()];
for (int i = 0; i<lects.size();i++){
// fill with data
lectureList[i] = lects.get(i);
}
lecture.setText("Upcomming Lectures:");
//set to list view
ListView listitems=(ListView)findViewById(R.id.listView1);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,lectureList);
listitems.setAdapter(adapter);
I tried to implement this with a list view, however it just shrinks down to a small section of the screen based on number of elements.
as you can see it just shrinks down.
I was wondering what would be the best type of layout to use for this type of problem, all of my layouts are pretty basic and something like this seems quite a challenge for me thanks.
You would have to write your own Adapter for listview and use weight property for layout of each row
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String sessionId = getIntent().getStringExtra("numbers");
final String[] values = new String[]{sessionId};
ArrayList list = new ArrayList<>(Arrays.asList(values));
final ArrayList arrayList = new ArrayList();
for (int i = 0; i < values.length; i++)
{
Log.d(TAG, "listValue -" + values[i]);
arrayList.add(values[i]);
}
listView = (ListView)findViewById(R.id.textView2);
listView.setAdapter(new
ArrayAdapter(ListDisplayActivity.this,R.layout.list_display,R.id.text, arrayList));
How to fix listview value single string have multiple values for android?
You can pass values like
intent.putStringArrayListExtra("sessionIds",yourSessionIdList);
and get like
ArrayList<String> sessionIds = getIntent().getStringArrayListExtra("sessionIds");
Check the below link: You may need to use custom adapter to display multiple values in each row of listview:
Listview with custom adapter
And I also recommend you to use recyclerview instead of listview
i develop android apps since one year so i'm not able to solve this kind of problem. I searched many times on our friend google but 0 real result. This is a very precise question, i try to display images dynamically into listview items, i mean :
1- I receive an array of int from my database (ex : 5, 6, 7, 7)
2- I want the adpater to display differents images depending of this numbers
for exemple i receive : "result" = {"1", "2", "3"} i want the app to associate images to this numbers (Images come from drawable folder)
if (int number = 1) {
imageview into item layout.setImageRessource(R.id.blabla)
}else ...
I really don't know how do that, i tried building a custom adapter but it doesn't display the listview...
I'll be the happiest developper if somebody can tell me what the good way to do that.
protected void showList() {
try {
JSONObject jsonObj = new JSONObject(myJSON2);
Poeple2 = jsonObj.getJSONArray(TAG_RESULTS);
for (int i = 0; i < Poeple2.length(); i++) {
JSONObject c = Poeple2.getJSONObject(i);
String username = c.getString(TAG_USERNAME);
int mood = c.getInt(TAG_MOOD);
HashMap<String, String> persons = new HashMap<String, String>();
persons.put(TAG_USERNAME, username);
persons.put(TAG_MOOD, String.valueOf(mood));
personList2.add(persons);
}
// i used a simple adapter but i know it's a wrong way
adapter = new SimpleAdapter(getActivity(), personList2, R.layout.modeluser4, new String[]{TAG_USERNAME, TAG_MOOD}, new int[]{R.id.tvHypo2, R.id.tvId});
list3.setAdapter(adapter);
} catch (JSONException e) {
e.printStackTrace();
}
}
create a switch like
public void runTheSwitch(int num){
int number = num;
switch(number){
case 1:
//add image to listview
case 2:
//add image to listview
case 3:
//add image to listview
....and so on...
}
}
When you recieve the Array of numbers from database (lets call it ArrayNum), run a loop through those num.
For(int num : ArrayNum){
runTheSwitch(num);
}
Put this into a method and run the method before you set your adapter. So basically in this method you add items to your Arraylist like arraylist.add(); then after this you define an Object of your custom adapter and pass the Arraylist in your adapter.
Hope it helps
I have a project with a TabLayout + ViewPager to scroll through two different fragments (one shows data happening currently and the other shows all data).
In the onCreateView's of both of these I call the same ASyncTask class with the only difference being the params changing.
FetchItems asyncTask = new FetchItems(getContext(), this);
asyncTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR,"someParams");
The JSON result is then processed here:
try {
LinkedList<LeagueItem> leagues = new LinkedList<>();
LeagueItem newLeague;
//For every league in the array
for (int i = 0; i < jsonBody.length(); i++) {
newLeague = new LeagueItem();
//Hold the league games
JSONObject jsonLeagueInfo = jsonBody.getJSONObject(i);
newLeague.setLeagueName(jsonLeagueInfo.getString("name"));
JSONArray leagueMatches = jsonLeagueInfo.getJSONArray("matches");
//For every match in that league
for(int j = 0;j<leagueMatches.length();j++){
JSONObject matchInformation = leagueMatches.getJSONObject(j);
JSONArray teamsArray = matchInformation.getJSONArray("teams");
MatchItem currentMatch = new MatchItem();
//For both teams in the match
for(int k=0;k<2;k++){
JSONObject teamInfo = teamsArray.getJSONObject(k);
String name = teamInfo.getString("name");
String logoUrl = teamInfo.getString("logo");
JSONObject scores = teamInfo.getJSONObject("results");
String runningScore = scores.getString("runningscore");
TeamItem currentTeam = new TeamItem(shortName, logoUrl, Integer.parseInt(runningScore), homeNum);
currentMatch.addTeam(currentTeam);
}
newLeague.addMatch(currentMatch);
}
leagues.add(newLeague);
}
return leagues;
}
I'm finding that both objects returned have crossover data which shouldn't be there. Both of the parent objects are correct in that they add the correct number of league items, however every league contains pretty much all the data that I'm iterating over. Am I missing something huge here? I thought that by calling executeOnExecuter I would be getting two completely separate threads with different objects.
Thanks.
I am using gooleplaces API. I have a response in json, but the problem is I want to populate listview according to distance. I make the sorted distance arraylist in ascending order using collections.sort(), but how do I sort other lists based on this sorted list to populate my listview correctly?
If you are creating separate lists, then you need to your define method, and if you are using list of single collection, or data structure, you can define your comparator, then call sort on this, list.
Finally I resolve my problem using bubble sort.
if (distanceList.size()>1) // check if the number of orders is larger than 1
{
for (int i=0; i<distanceList.size()-1; i++) // bubble sort outer loop
{
for (int j=0; j < distanceList.size()-1-i; j++) {
if (distanceList.get(j)>(distanceList.get(j+1)) )
{
int temp = distanceList.get(j);
distanceList.set(j,distanceList.get(j+1) );
distanceList.set(j+1, temp);
String temp1 = nameList.get(j);
nameList.set(j,nameList.get(j+1) );
nameList.set(j+1, temp1);
String temp2 = vicinityList.get(j);
vicinityList.set(j,vicinityList.get(j+1) );
vicinityList.set(j+1, temp2);
String temp3 = latList.get(j);
latList.set(j,latList.get(j+1) );
latList.set(j+1, temp3);
String temp4 = longList.get(j);
longList.set(j,longList.get(j+1) );
longList.set(j+1, temp4);
}
}
}
}
I am stuck with an issue in my project.The need is to show all data fetched from server using webservices.I successfully get data from server using json.but i want to show data on screen in tabular format 50 records at a time.Please suggest me how to do this or if you can guide me through a better way to implement paging in android.
The code of paging is here :
Implement Pagination on tab layout
and the function i use to append rows dynamically to tablelayout is :
private void appendRows(TableLayout table, String[] data) {
int rowSize = data.length;
int colSize = (data.length > 0) ? 1 : 0;
for (int i = 0; i < rowSize; i++) {
TableRow row = new TableRow(this);
for (int j = 0; j < colSize; j++) {
String[] rowVal = null;
rowVal = data[i].split(",");
for (int k = 0; k <= rowVal.length - 1; k++) {
TextView c = new TextView(this);
c.setText(rowVal[k]);
c.setTextColor(getResources().getColor(R.color.white));
c.setPadding(3, 3, 3, 3);
row.addView(c);
}
}
table.addView(row, new TableLayout.LayoutParams());
}
}
Please guide me I need to show hyperlink page numbers at the bottom of my window as shown in google
This might be of some help. Its a tutorial for pagination. Here is the source code.
I have had similar requirement like yours and I normally use the listview for it. Due to the recycling of views it is a lot more efficient than using a table layout.
You can create a custom adapter where you always return the size as 50+1, 100+1. So in your onItemClickListener you can check if the row position is more than the items, if so, then you add the next 50 items to the adapter. This is a basic idea of how to do it.