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Improve task list selection when creating a new task from widget (#287)
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72 changes: 72 additions & 0 deletions
72
opentasks/src/main/java/org/dmfs/tasks/utils/RecentlyUsedLists.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| package org.dmfs.tasks.utils; | ||
|
|
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| import android.content.Context; | ||
| import android.preference.PreferenceManager; | ||
| import android.text.TextUtils; | ||
| import android.util.Log; | ||
|
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
|
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| /** | ||
| * Helper class to record recently used lists in order to provide a pre-selection to the user. | ||
| */ | ||
| public class RecentlyUsedLists { | ||
| public static final String PREFERENCE_KEY = "RecentlyUsedLists"; | ||
|
|
||
| /** | ||
| * Gets the lists of TaskLists ordered by recently use. | ||
| * @param context Context | ||
| * @return List of TaskLists where the most recently used list is on position 0. | ||
| */ | ||
| public static List<Long> getList(Context context) { | ||
| String strLists = PreferenceManager.getDefaultSharedPreferences(context).getString(PREFERENCE_KEY, ""); | ||
| Log.v(RecentlyUsedLists.class.getSimpleName(), "getList: "+strLists); | ||
| List<Long> lists = new ArrayList<>(); | ||
| if(strLists.length()>0) { | ||
| for (String lid : strLists.split(",")) { | ||
| lists.add(Long.parseLong(lid)); | ||
| } | ||
| } | ||
| return lists; | ||
| } | ||
|
|
||
| /** | ||
| * Saves the ordered lists of TaskLists. | ||
| * @param context Context | ||
| * @param lists List of TaskLists where the most recently used list is on position 0. | ||
| */ | ||
| private static void setList(Context context, List<Long> lists) { | ||
| String strLists = TextUtils.join(",", lists); | ||
| Log.v(RecentlyUsedLists.class.getSimpleName(), "setList: "+strLists); | ||
| PreferenceManager.getDefaultSharedPreferences(context).edit().putString(PREFERENCE_KEY, strLists).commit(); | ||
| } | ||
|
|
||
| /** | ||
| * Searches for the best suitable TaskList in dependence of which is most recently used. | ||
| * @param context Context | ||
| * @param allowedLists List of TaskLists | ||
| * @return The most recently used TaskLists from <code>allowedLists</code> | ||
| */ | ||
| public static Long getRecentFromList(Context context, List<Long> allowedLists) { | ||
| List<Long> recentlyLists = getList(context); | ||
| for (Long listId : recentlyLists) { | ||
| if(allowedLists.contains(listId)) { | ||
| return listId; | ||
| } | ||
| } | ||
| return allowedLists.get(0); | ||
| } | ||
|
|
||
| /** | ||
| * Mark a TaskLists as "used", which means that as new task was just created. | ||
| * @param context Context | ||
| * @param listId Id of the TaskList, where a task was just created. | ||
| */ | ||
| public static void use(Context context, Long listId) { | ||
| List<Long> lists = getList(context); | ||
| lists.remove(listId); // does nothing, if "listId" is not in "lists" | ||
| lists.add(0, listId); | ||
| setList(context, lists); | ||
| } | ||
| } |