Fix calendar permission crash

src/main/AndroidManifest.xml

@@ -356,7 +356,7 @@
 
         <activity
             android:name=".activities.CalendarSelectionActivity"
-            android:theme="@style/TranslucentDialog" />
+            android:theme="@style/TasksDialog" />
 
         <activity
             android:name="com.todoroo.astrid.gcal.CalendarReminderActivity"

src/main/java/org/tasks/PermissionUtil.java

@@ -0,0 +1,18 @@
+package org.tasks;
+
+import android.content.pm.PackageManager;
+
+public abstract class PermissionUtil {
+    public static boolean verifyPermissions(int[] grantResults) {
+        if(grantResults.length < 1){
+            return false;
+        }
+
+        for (int result : grantResults) {
+            if (result != PackageManager.PERMISSION_GRANTED) {
+                return false;
+            }
+        }
+        return true;
+    }
+}

src/main/java/org/tasks/activities/CalendarSelectionActivity.java

@@ -1,17 +1,12 @@
 package org.tasks.activities;
 
-import android.support.v4.app.FragmentManager;
 import android.content.Intent;
-import android.content.pm.PackageManager;
 import android.os.Bundle;
+import android.support.v4.app.FragmentManager;
 
 import org.tasks.calendars.AndroidCalendar;
 import org.tasks.injection.ActivityComponent;
 import org.tasks.injection.InjectingAppCompatActivity;
-import org.tasks.preferences.ActivityPermissionRequestor;
-import org.tasks.preferences.PermissionRequestor;
-
-import javax.inject.Inject;
 
 public class CalendarSelectionActivity extends InjectingAppCompatActivity implements CalendarSelectionDialog.CalendarSelectionHandler {
 
@@ -21,15 +16,19 @@ public class CalendarSelectionActivity extends InjectingAppCompatActivity implem
     public static final String EXTRA_CALENDAR_NAME = "extra_calendar_name";
     public static final String EXTRA_SHOW_NONE = "extra_show_none";
 
-    @Inject ActivityPermissionRequestor permissionRequestor;
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-
-        if (permissionRequestor.requestCalendarPermissions()) {
-            showDialog();
+        FragmentManager fragmentManager = getSupportFragmentManager();
+        CalendarSelectionDialog fragmentByTag = (CalendarSelectionDialog) fragmentManager.findFragmentByTag(FRAG_TAG_CALENDAR_PREFERENCE_SELECTION);
+        if (fragmentByTag == null) {
+            fragmentByTag = new CalendarSelectionDialog();
+            if (getIntent().getBooleanExtra(EXTRA_SHOW_NONE, false)) {
+                fragmentByTag.enableNone();
+            }
+            fragmentByTag.show(fragmentManager, FRAG_TAG_CALENDAR_PREFERENCE_SELECTION);
         }
+        fragmentByTag.setCalendarSelectionHandler(this);
     }
 
     @Override
@@ -43,36 +42,11 @@ public class CalendarSelectionActivity extends InjectingAppCompatActivity implem
             putExtra(EXTRA_CALENDAR_ID, androidCalendar.getId());
             putExtra(EXTRA_CALENDAR_NAME, androidCalendar.getName());
         }});
-    }
-
-    @Override
-    public void dismiss() {
         finish();
     }
 
     @Override
-    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
-        if (requestCode == PermissionRequestor.REQUEST_CALENDAR) {
-            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
-                showDialog();
-            } else {
-                finish();
-            }
-        } else {
-            super.onRequestPermissionsResult(requestCode, permissions, grantResults);
-        }
-    }
-
-    private void showDialog() {
-        FragmentManager fragmentManager = getSupportFragmentManager();
-        CalendarSelectionDialog fragmentByTag = (CalendarSelectionDialog) fragmentManager.findFragmentByTag(FRAG_TAG_CALENDAR_PREFERENCE_SELECTION);
-        if (fragmentByTag == null) {
-            fragmentByTag = new CalendarSelectionDialog();
-            if (getIntent().getBooleanExtra(EXTRA_SHOW_NONE, false)) {
-                fragmentByTag.enableNone();
-            }
-            fragmentByTag.show(fragmentManager, FRAG_TAG_CALENDAR_PREFERENCE_SELECTION);
-        }
-        fragmentByTag.setCalendarSelectionHandler(this);
+    public void cancel() {
+        finish();
     }
 }

src/main/java/org/tasks/activities/CalendarSelectionDialog.java

@@ -5,6 +5,7 @@ import android.content.Context;
 import android.content.DialogInterface;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
+import android.widget.ArrayAdapter;
 import android.widget.Toast;
 
 import com.google.common.base.Function;
@@ -17,70 +18,64 @@ import org.tasks.dialogs.DialogBuilder;
 import org.tasks.injection.DialogFragmentComponent;
 import org.tasks.injection.ForActivity;
 import org.tasks.injection.InjectingDialogFragment;
+import org.tasks.preferences.FragmentPermissionRequestor;
+import org.tasks.preferences.PermissionChecker;
+import org.tasks.preferences.PermissionRequestor;
 
+import java.util.ArrayList;
 import java.util.List;
 
 import javax.inject.Inject;
 
 import static com.google.common.collect.Lists.transform;
+import static org.tasks.PermissionUtil.verifyPermissions;
 
 public class CalendarSelectionDialog extends InjectingDialogFragment {
 
-    public void enableNone() {
-        enableNone = true;
-    }
-
-    @Override
-    protected void inject(DialogFragmentComponent component) {
-        component.inject(this);
-    }
-
     public interface CalendarSelectionHandler {
         void selectedCalendar(AndroidCalendar calendar);
-        void dismiss();
+
+        void cancel();
     }
 
     @Inject DialogBuilder dialogBuilder;
     @Inject CalendarProvider calendarProvider;
     @Inject @ForActivity Context context;
+    @Inject FragmentPermissionRequestor fragmentPermissionRequestor;
+    @Inject PermissionChecker permissionChecker;
     private CalendarSelectionHandler handler;
     private boolean enableNone;
+    private ArrayAdapter<String> adapter;
+    private final List<AndroidCalendar> calendars = new ArrayList<>();
+    private final List<String> calendarNames = new ArrayList<>();
 
     @NonNull
     @Override
     public Dialog onCreateDialog(Bundle savedInstanceState) {
-        final List<AndroidCalendar> calendars = calendarProvider.getCalendars();
-        List<String> calendarNames = transform(calendars, new Function<AndroidCalendar, String>() {
-            @Override
-            public String apply(AndroidCalendar androidCalendar) {
-                return androidCalendar.getName();
-            }
-        });
-
-        if (calendarNames.isEmpty()) {
-            Toast.makeText(context, R.string.no_calendars_found, Toast.LENGTH_LONG).show();
-            handler.dismiss();
+        if (savedInstanceState == null) {
+            fragmentPermissionRequestor.requestCalendarPermissions();
         }
 
+        adapter = new ArrayAdapter<>(context, R.layout.simple_list_item_single_choice_themed, calendarNames);
+
         AlertDialogBuilder builder = dialogBuilder.newDialog()
-                .setItems(calendarNames, new DialogInterface.OnClickListener() {
+                .setAdapter(adapter, new DialogInterface.OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int which) {
                         handler.selectedCalendar(calendars.get(which));
-                        dialog.dismiss();
+                    }
+                })
+                .setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialogInterface, int i) {
+                        handler.cancel();
                     }
                 });
         if (enableNone) {
-            builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
-                @Override
-                public void onClick(DialogInterface dialog, int which) {
-                    dialog.dismiss();
-                }
-            }).setNeutralButton(R.string.none, new DialogInterface.OnClickListener() {
+            builder.setNeutralButton(R.string.none, new DialogInterface.OnClickListener() {
                 @Override
                 public void onClick(DialogInterface dialog, int which) {
                     handler.selectedCalendar(AndroidCalendar.NONE);
-                    dialog.dismiss();
                 }
             });
         }
@@ -89,10 +84,53 @@ public class CalendarSelectionDialog extends InjectingDialogFragment {
     }
 
     @Override
-    public void onDismiss(DialogInterface dialog) {
-        super.onDismiss(dialog);
+    public void onResume() {
+        super.onResume();
+
+        if (permissionChecker.canAccessCalendars()) {
+            calendars.clear();
+            calendars.addAll(calendarProvider.getCalendars());
+            calendarNames.clear();
+            calendarNames.addAll(transform(calendars, new Function<AndroidCalendar, String>() {
+                @Override
+                public String apply(AndroidCalendar androidCalendar) {
+                    return androidCalendar.getName();
+                }
+            }));
+            if (calendarNames.isEmpty()) {
+                Toast.makeText(context, R.string.no_calendars_found, Toast.LENGTH_LONG).show();
+                handler.cancel();
+            } else {
+                adapter.notifyDataSetChanged();
+            }
+        }
+    }
+
+    @Override
+    public void onCancel(DialogInterface dialog) {
+        super.onCancel(dialog);
 
-        handler.dismiss();
+        handler.cancel();
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        if (requestCode == PermissionRequestor.REQUEST_CALENDAR) {
+            if (grantResults.length > 0 && !verifyPermissions(grantResults)) {
+                handler.cancel();
+            }
+        } else {
+            super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        }
+    }
+
+    @Override
+    protected void inject(DialogFragmentComponent component) {
+        component.inject(this);
+    }
+
+    public void enableNone() {
+        enableNone = true;
     }
 
     public void setCalendarSelectionHandler(CalendarSelectionHandler handler) {

src/main/java/org/tasks/injection/DialogFragmentModule.java

@@ -3,6 +3,7 @@ package org.tasks.injection;
 import android.app.Activity;
 import android.content.Context;
 import android.support.v4.app.DialogFragment;
+import android.support.v4.app.Fragment;
 
 import dagger.Module;
 import dagger.Provides;
@@ -20,6 +21,11 @@ public class DialogFragmentModule {
         return dialogFragment.getActivity();
     }
 
+    @Provides
+    public Fragment getFragment() {
+        return dialogFragment;
+    }
+
     @Provides
     @ForActivity
     public Context getContext() {

src/main/res/layout/simple_list_item_single_choice_themed.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?><!-- Copyright (C) 2008 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@android:id/text1"
+    android:layout_width="match_parent"
+    android:layout_height="?android:attr/listPreferredItemHeight"
+    android:gravity="center_vertical"
+    android:paddingEnd="@dimen/keyline_first"
+    android:paddingLeft="@dimen/keyline_first"
+    android:paddingRight="@dimen/keyline_first"
+    android:paddingStart="@dimen/keyline_first"
+    android:textColor="?attr/asTextColor"  />

src/main/res/values/theme.xml

@@ -26,6 +26,7 @@
     <style name="TasksDialogAlert" parent="@style/Theme.AppCompat.DayNight.Dialog.Alert">
         <item name="android:windowBackground">@color/background_color_dialog</item>
         <item name="colorAccent">?attr/colorAccentDialog</item>
+        <item name="colorAccentDialog">@color/blue_grey_400</item>
         <item name="asTextColor">@color/text_primary</item>
         <item name="icon_tint">@color/icon_tint</item>
     </style>
@@ -33,6 +34,7 @@
     <style name="TasksDialog" parent="@style/Theme.AppCompat.DayNight.Dialog">
         <item name="android:windowBackground">@color/background_color_dialog</item>
         <item name="colorAccent">?attr/colorAccentDialog</item>
+        <item name="colorAccentDialog">@color/blue_grey_400</item>
         <item name="asTextColor">@color/text_primary</item>
         <item name="icon_tint">@color/icon_tint</item>
     </style>