/
GroupListActivity.java
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/
GroupListActivity.java
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package com.example.ridize.microsoftgraphstarter;
import android.app.AlertDialog;
import android.app.ListActivity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import com.microsoft.aad.adal.AuthenticationCallback;
import com.microsoft.aad.adal.AuthenticationContext;
import com.microsoft.aad.adal.AuthenticationResult;
import org.json.JSONArray;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Random;
public class GroupListActivity extends ListActivity {
AuthenticationContext mAuthContext;
private static final String GROUPS = "GROUPS";
AlertDialog.Builder dialog;
HashMap<String, String> groups;
public static Intent makeIntent(HashMap<String, String> groups, Context context) {
Intent intent = new Intent(context, GroupListActivity.class);
intent.putExtra(GROUPS, groups);
return intent;
}
@Override
public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.activity_group_list);
Intent intent = getIntent();
groups = (HashMap<String, String>)intent.getSerializableExtra(GROUPS);
if (groups.values().size() < 1) {
dialog.setMessage("No groups on organization.");
dialog.show();
return;
}
ArrayList<String> groupNames = new ArrayList(groups.keySet());
setListAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1,
groupNames));
}
@Override
public void onListItemClick(ListView parent, View v, int position, long id) {
ArrayList<String> groupNames = new ArrayList(groups.keySet());
String g = groupNames.get((int) id);
getLuckyOne(groups.get(g));
}
public void getLuckyOne(String groupId) {
final String id = groupId;
AuthenticationContext mAuthContext;
try {
mAuthContext = new AuthenticationContext(GroupListActivity.this,
ServiceConsts.AUTHORITY_URL, false);
mAuthContext.acquireToken(GroupListActivity.this,
ServiceConsts.RESOURCE_ID,
ServiceConsts.CLIENT_ID,
ServiceConsts.REDIRECT_URL, "",
new AuthenticationCallback<AuthenticationResult>() {
@Override
public void onSuccess(AuthenticationResult result) {
//make a call to the Microsoft Graph
HttpTask http = new HttpTask(result);
final AuthenticationResult authResult = result;
http.setTaskHandler(new HttpTask.HttpTaskHandler() {
@Override
public void taskSuccessful(JSONObject json) {
//bind the txtMessage control
try {
chooseAndShow(json.getJSONArray("value"));
// Log.v("RESULT", json.toString());
}
catch (Exception ex) {
}
}
@Override
public void taskFailed() {
dialog.setMessage("REST call failed");
dialog.show();
}
});
http.execute("https://graph.microsoft.com/v1.0/groups/" + id +
"/members");
}
@Override
public void onError(Exception exc) {
dialog.setMessage(exc.getMessage());
dialog.show();
}
});
}
catch (Throwable t) {
dialog.setMessage(t.getMessage());
dialog.show();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (mAuthContext != null)
mAuthContext.onActivityResult(requestCode, resultCode, data);
}
private void chooseAndShow(JSONArray values) {
ArrayList<String> members = new ArrayList<String>();
for (int i=0; i< values.length(); i++) {
try {
JSONObject item = values.getJSONObject(i);
String name = item.getString("displayName");
members.add(name);
} catch (Throwable t) {
}
}
Random randomGenerator = new Random();
int index = randomGenerator.nextInt(members.size());
String winner = members.get(index);
dialog = new AlertDialog.Builder(GroupListActivity.this);
dialog.setTitle("The Dreamed Volunteer is");
dialog.setCancelable(false);
dialog.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
});
dialog.create();
dialog.setMessage(winner);
dialog.show();
}
}