I wrote a tab for my Android application.
My question is switching between tabs using the activity group that he wants to display last. I want to show the last opening / visiting screen when we navigate the tab. My first transition to the first screen:
I need to show the last open screen when navigating a tab
Tab 1 → Sales. This contains 10 screens inside (actiivity) Tab 2 -> Admin. It contains 5 screens inside (actiivity) Tab 3 → Setting.This contains 8 screens inside. (Actiivity)
I clicked tab 1, it loaded the tab 1 screen, which contains a list of sales route. Then I clicked one sales route, it falls into the list of retailers on the first tab. Then I ended up tab 3 "Settings", complete the work and return to sales. At this time, he should show the last open screen on the "Sales" tab.
When I clicked the tab, it should show the last open activity . How to make?
I liked it. Indicate where I want to change the code for my requirements.
MainActivity.It called after login
public class MainActivity extends TabActivity { int selectedTab; TabHost tabHost ; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.tabview); TabHost t = getTabHost(); tabHost = (TabHost)findViewById(android.R.id.tabhost); TabSpec firstTabSpec = tabHost.newTabSpec("tid1"); TabSpec secondTabSpec = tabHost.newTabSpec("tid1"); TabSpec thirdTabSpec = tabHost.newTabSpec("tid1"); firstTabSpec.setIndicator("Sales").setContent(new Intent(this,SalesActivityGroup.class)); secondTabSpec.setIndicator("Admin").setContent(new Intent(this,SettingActivityGroup.class)); thirdTabSpec.setIndicator("Setting").setContent(new Intent(this,SettingActivityGroup.class)); tabHost.addTab(firstTabSpec); tabHost.addTab(secondTabSpec); tabHost.addTab(thirdTabSpec); tabHost.setCurrentTab(0); tabHost.setMinimumHeight(25); } public void onTabChanged(String arg0) { selectedTab = tabHost.getCurrentTab(); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK) { moveTaskToBack(false); return true; } return super.onKeyDown(keyCode, event); }
}
First Tab1 (Sales) SalesGroupActivity
public class SalesActivityGroup extends ActivityGroup { public static SalesActivityGroup group; private ArrayList<View> history; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.history = new ArrayList<View>(); group = this; View view = getLocalActivityManager().startActivity("Sales", new Intent(this, SalesRouteActivity.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)) .getDecorView(); replaceView(view); } public void replaceView(View v) { history.add(v); setContentView(v); } public void back() { if (history.size() > 0) { history.remove(history.size() - 1); if (history.size() > 0) { setContentView(history.get(history.size() - 1)); } else { finish(); } } else { finish(); } } @Override public void onBackPressed() { SalesActivityGroup.group.back(); return; }
Edited This is FirstTab firstActivity - SalesRouteActivity
public class SalesRouteActivity extends ListActivity{ TableLayout tl; static int positions = 0; static String keyword =""; int uploadSize = 0; private NotificationManager mNotificationManager; private int SIMPLE_NOTFICATION_ID; String strBusinessUnit = ""; String strExecutive = ""; String strTerritoryCode = ""; SimpleAdapter sd; View row = null; View selectRow = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.sales_routes); SharedPreferences myPrefs = this.getSharedPreferences("myLogedPrefs",MODE_WORLD_READABLE); strBusinessUnit = myPrefs.getString("BusinessUnit", ""); strExecutive = myPrefs.getString("Executive", ""); strTerritoryCode = myPrefs.getString("TerritoryCode", ""); ArrayList<SalesRoutes> routeList = getSalesRoute(); ArrayList<HashMap<String, String>> routhPath = new ArrayList<HashMap<String, String>>(); for (int i = 0; i < routeList.size(); i++) { if(Integer.parseInt(routeList.get(i).getOutlets()) >0){ HashMap<String, String> map = new HashMap<String, String>(); map.put("routeCode",((SalesRoutes) routeList.get(i)).getRouteCode()); map.put("routeName",((SalesRoutes) routeList.get(i)).getDescription()); map.put("outlets", ((SalesRoutes) routeList.get(i)).getOutlets()); routhPath.add(map); } } ListView list = getListView(); sd = new SimpleAdapter(this, routhPath, R.layout.route_path,new String[] {"routeCode","routeName","outlets" },new int[] { R.id.routeCode,R.id.routeName,R.id.outlets}); row = getLayoutInflater().inflate(R.layout.route_path_row, null, false); getListView().addHeaderView(row); list.setAdapter(sd); list.setChoiceMode(ListView.CHOICE_MODE_SINGLE); list.setSelected(true); list.setTextFilterEnabled(true); list.setItemsCanFocus(true); list.setItemChecked(positions, true); list.setSelectionAfterHeaderView(); if (routeList.size() > 0) { keyword = routeList.get(0).getRouteCode(); } uploadSize = new UploadActivity().getUploadTable(); if (uploadSize > 0) { mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); final Notification notifyDetails = new Notification(R.drawable.icon, "New Alert, Click Me!",System.currentTimeMillis()); Context context = getApplicationContext(); CharSequence contentTitle = "Upload Available..."; CharSequence contentText = "Browse Android Official Site by clicking me"; Intent notifyIntent = new Intent(android.content.Intent.ACTION_VIEW,Uri.parse("http://www.android.com")); PendingIntent intent = PendingIntent.getActivity(SalesRouteActivity.this, 0, notifyIntent,android.content.Intent.FLAG_ACTIVITY_NEW_TASK); notifyDetails.setLatestEventInfo(context, contentTitle,contentText, intent); mNotificationManager.notify(SIMPLE_NOTFICATION_ID, notifyDetails); } } @SuppressWarnings("unchecked") @Override protected void onListItemClick(ListView l, View v, int position, long id) { super.onListItemClick(l, v, position, id); HashMap<String, String> hashMap = (HashMap<String, String>) l.getItemAtPosition(position); keyword = hashMap.get("routeCode"); positions = position; if(position == 0 ){ }else if(position != 1){ Intent showContent = new Intent(v.getContext(),SalesRouteDevitionActivity.class); Bundle bundle = new Bundle(); bundle.putString("RouteCode", keyword); showContent.putExtras(bundle); getParent().startActivityForResult(showContent, 5); }else{ Intent intent = new Intent(SalesRouteActivity.this, ListRetailerActivity.class); Bundle bundle = new Bundle(); bundle.putString("RouteName", keyword); intent.putExtras(bundle); View view = SalesActivityGroup.group.getLocalActivityManager().startActivity("", intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)).getDecorView(); SalesActivityGroup.group.replaceView(view); } } @Override public void onBackPressed() { SalesActivityGroup.group.back(); } @SuppressWarnings({ "rawtypes", "unchecked" }) public ArrayList<SalesRoutes> getSalesRoute(){ DBAdapter dbAdapter = DBAdapter.getDBAdapterInstance(this); try { dbAdapter.createDataBase(); } catch (IOException e) { Log.i("*** select ",e.getMessage()); } dbAdapter.openDataBase(); String sql = "SELECT RouteCode, Description, OutletsAttached " + "FROM WMRoute " + "WHERE ActiveStatus = '1' AND RouteDefaultExecutive = ? AND BusinessUnit = ? AND TerritoryCode = ? " + "ORDER BY RouteCode "; String[]d = new String[]{strExecutive,strBusinessUnit,strTerritoryCode}; ArrayList stringList = dbAdapter.selectRecordsFromDBList(sql, d); dbAdapter.close(); ArrayList<SalesRoutes> salesRoutesList = new ArrayList<SalesRoutes>(); for (int i = 0; i < stringList.size(); i++) { ArrayList<Object> arrayList = (ArrayList<Object>) stringList.get(i); ArrayList<Object> list = arrayList; SalesRoutes salesRoutes = new SalesRoutes(); try { salesRoutes.setRouteCode((String) list.get(0)); salesRoutes.setDescription((String) list.get(1)); salesRoutes.setOutlets((String)list.get(2)); } catch (Exception e) { Log.i("***" + SalesRouteActivity.class.toString(), e.getMessage()); } salesRoutesList.add(salesRoutes); } return salesRoutesList; } }
Probably my activity groups are created again and again when switching between tabs. Therefore, groups want to create only once and resume when I switch between tabs
Information about each screen / content retrieved from the database.
I encountered this problem for more than 2 days .... Please help me. Please help me with this ....
Thanks in advance.