Toggle between primary and managed profile in Print Settings

This adds a spinner to the print settings screen which can be used to toggle
between the Settings app in the primary and managed profile so that the user
can edit settings belonging to both profiles.

Bug: 16369104
Change-Id: I2556a331d09379c2a501bc6b192ab1631b5215f5

src/com/android/settings/print/PrintSettingsFragment.java

@@ -16,6 +16,7 @@
 
 package com.android.settings.print;
 
+import android.app.Activity;
 import android.app.ActivityManager;
 import android.app.LoaderManager.LoaderCallbacks;
 import android.content.AsyncTaskLoader;
@@ -31,6 +32,9 @@ import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
+import android.os.UserHandle;
+import android.os.UserManager;
+import android.os.Process;
 import android.preference.Preference;
 import android.preference.PreferenceCategory;
 import android.preference.PreferenceScreen;
@@ -50,9 +54,12 @@ import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.AdapterView;
 import android.widget.TextView;
 
 import com.android.internal.content.PackageMonitor;
+import com.android.settings.UserSpinnerAdapter;
+import com.android.settings.UserSpinnerAdapter.UserDetails;
 import com.android.settings.DialogCreatable;
 import com.android.settings.R;
 import com.android.settings.SettingsPreferenceFragment;
@@ -64,11 +71,14 @@ import java.text.DateFormat;
 import java.util.ArrayList;
 import java.util.List;
 
+import android.widget.AdapterView.OnItemSelectedListener;
+import android.widget.Spinner;
+
 /**
  * Fragment with the top level print settings.
  */
 public class PrintSettingsFragment extends SettingsPreferenceFragment
-        implements DialogCreatable, Indexable {
+        implements DialogCreatable, Indexable, OnItemSelectedListener {
 
     private static final int LOADER_ID_PRINT_JOBS_LOADER = 1;
 
@@ -113,6 +123,14 @@ public class PrintSettingsFragment extends SettingsPreferenceFragment
     private PreferenceCategory mPrintServicesCategory;
 
     private PrintJobsController mPrintJobsController;
+    private Context mContext;
+    private UserSpinnerAdapter mProfileSpinnerAdapter;
+
+    @Override
+    public void onAttach(Activity activity) {
+        super.onAttach(activity);
+        mContext = activity;
+    }
 
     @Override
     public void onCreate(Bundle icicle) {
@@ -169,6 +187,27 @@ public class PrintSettingsFragment extends SettingsPreferenceFragment
         textView.setText(R.string.print_no_services_installed);
         contentRoot.addView(emptyView);
         getListView().setEmptyView(emptyView);
+
+        final UserManager um = (UserManager) getSystemService(Context.USER_SERVICE);
+        List<UserHandle> userProfiles = um.getUserProfiles();
+        if (userProfiles.size() >= 2) {
+            Spinner spinner = (Spinner) getActivity().getLayoutInflater().inflate(
+                    R.layout.spinner_view, null);
+
+            UserHandle myUserHandle = Process.myUserHandle();
+            userProfiles.remove(myUserHandle);
+            userProfiles.add(0, myUserHandle);
+            ArrayList<UserDetails> userDetails = new ArrayList<UserDetails>(userProfiles.size());
+            final int count = userProfiles.size();
+            for (int i = 0; i < count; i++) {
+                userDetails.add(new UserDetails(userProfiles.get(i), um, mContext));
+            }
+
+            mProfileSpinnerAdapter = new UserSpinnerAdapter(mContext, userDetails);
+            spinner.setAdapter(mProfileSpinnerAdapter);
+            spinner.setOnItemSelectedListener(this);
+            setPinnedHeaderView(spinner);
+        }
     }
 
     private void updateServicesPreferences() {
@@ -271,6 +310,22 @@ public class PrintSettingsFragment extends SettingsPreferenceFragment
         }
     }
 
+    @Override
+    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+        UserHandle selectedUser = mProfileSpinnerAdapter.getUserHandle(position);
+        if (selectedUser.getIdentifier() != UserHandle.myUserId()) {
+            Intent intent = new Intent(Settings.ACTION_PRINT_SETTINGS);
+            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            mContext.startActivityAsUser(intent, selectedUser);
+            getActivity().finish();
+        }
+    }
+
+    @Override
+    public void onNothingSelected(AdapterView<?> parent) {
+        // Nothing to do
+    }
+
     private class SettingsPackageMonitor extends PackageMonitor {
         @Override
         public void onPackageAdded(String packageName, int uid) {
@@ -565,4 +620,4 @@ public class PrintSettingsFragment extends SettingsPreferenceFragment
             return indexables;
         }
     };
-}
+}