Allow system apps to add to settings dashboard

Allow system apps to add a tile to the top level of settings that
links to an activity through adding a filter for a specific action.
Determine the info for the tile based off manifest info for the
activity. Also allow the same for managed profiles, but show a dialog
in between to select which profile.

The category in which the item is to be placed must be in meta-data.
The icon and title can be specified through meta-data as well or
if unspecified the activity's label and icon will be used.

Also added an optional <external-tiles> tag to the dashboard
category xml, this allows Settings to put external tiles
in the middle of some categories (Personal does this).

Bug: 19443117
Change-Id: Idc9938d1549d181103a3030a8784b527215a8399

4 files changed, 60 insertions, 3 deletions

diff --git a/src/com/android/settings/dashboard/DashboardCategory.java b/src/com/android/settings/dashboard/DashboardCategory.java
index fedbf0a..69d0316 100644
--- a/src/com/android/settings/dashboard/DashboardCategory.java
+++ b/src/com/android/settings/dashboard/DashboardCategory.java
@@ -52,6 +52,16 @@ public class DashboardCategory implements Parcelable {
     public CharSequence title;
 
     /**
+     * Key used for placing external tiles.
+     */
+    public String key;
+
+    /**
+     * Optional index of where to place tiles specified by system apps.
+     */
+    public int externalIndex = -1;
+
+    /**
      * List of the category's children
      */
     public List<DashboardTile> tiles = new ArrayList<DashboardTile>();
@@ -105,7 +115,9 @@ public class DashboardCategory implements Parcelable {
     @Override
     public void writeToParcel(Parcel dest, int flags) {
         dest.writeInt(titleRes);
+        dest.writeInt(externalIndex);
         TextUtils.writeToParcel(title, dest, flags);
+        dest.writeString(key);
 
         final int count = tiles.size();
         dest.writeInt(count);
@@ -118,7 +130,9 @@ public class DashboardCategory implements Parcelable {
 
     public void readFromParcel(Parcel in) {
         titleRes = in.readInt();
+        externalIndex = in.readInt();
         title = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
+        key = in.readString();
 
         final int count = in.readInt();
 
diff --git a/src/com/android/settings/dashboard/DashboardSummary.java b/src/com/android/settings/dashboard/DashboardSummary.java
index cf398d7..8a92860 100644
--- a/src/com/android/settings/dashboard/DashboardSummary.java
+++ b/src/com/android/settings/dashboard/DashboardSummary.java
@@ -21,6 +21,7 @@ import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.res.Resources;
 import android.os.Bundle;
 import android.os.Handler;
@@ -32,6 +33,7 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.TextView;
+
 import com.android.settings.R;
 import com.android.settings.SettingsActivity;
 
@@ -148,7 +150,15 @@ public class DashboardSummary extends Fragment {
     private void updateTileView(Context context, Resources res, DashboardTile tile,
             ImageView tileIcon, TextView tileTextView, TextView statusTextView) {
 
-        if (tile.iconRes > 0) {
+        if (!TextUtils.isEmpty(tile.iconPkg)) {
+            try {
+                tileIcon.setImageDrawable(context.getPackageManager()
+                        .getResourcesForApplication(tile.iconPkg).getDrawable(tile.iconRes, null));
+            } catch (NameNotFoundException | Resources.NotFoundException e) {
+                tileIcon.setImageDrawable(null);
+                tileIcon.setBackground(null);
+            }
+        } else if (tile.iconRes > 0) {
             tileIcon.setImageResource(tile.iconRes);
         } else {
             tileIcon.setImageDrawable(null);
diff --git a/src/com/android/settings/dashboard/DashboardTile.java b/src/com/android/settings/dashboard/DashboardTile.java
index 1f1d9c2..94833d3 100644
--- a/src/com/android/settings/dashboard/DashboardTile.java
+++ b/src/com/android/settings/dashboard/DashboardTile.java
@@ -21,8 +21,11 @@ import android.content.res.Resources;
 import android.os.Bundle;
 import android.os.Parcel;
 import android.os.Parcelable;
+import android.os.UserHandle;
 import android.text.TextUtils;
 
+import java.util.ArrayList;
+
 /**
  * Description of a single dashboard tile that the user can select.
  */
@@ -73,6 +76,11 @@ public class DashboardTile implements Parcelable {
     public int iconRes;
 
     /**
+     * Optional package to pull the icon resource from.
+     */
+    public String iconPkg;
+
+    /**
      * Full class name of the fragment to display when this tile is
      * selected.
      * @attr ref android.R.styleable#PreferenceHeader_fragment
@@ -91,6 +99,11 @@ public class DashboardTile implements Parcelable {
     public Intent intent;
 
     /**
+     * Optional list of user handles which the intent should be launched on.
+     */
+    public ArrayList<UserHandle> userHandle = new ArrayList<>();
+
+    /**
      * Optional additional data for use by subclasses of the activity
      */
     public Bundle extras;
@@ -136,6 +149,7 @@ public class DashboardTile implements Parcelable {
         dest.writeInt(summaryRes);
         TextUtils.writeToParcel(summary, dest, flags);
         dest.writeInt(iconRes);
+        dest.writeString(iconPkg);
         dest.writeString(fragment);
         dest.writeBundle(fragmentArguments);
         if (intent != null) {
@@ -144,6 +158,11 @@ public class DashboardTile implements Parcelable {
         } else {
             dest.writeInt(0);
         }
+        final int N = userHandle.size();
+        dest.writeInt(N);
+        for (int i = 0; i < N; i++) {
+            dest.writeParcelable(userHandle.get(i), flags);
+        }
         dest.writeBundle(extras);
     }
 
@@ -154,11 +173,16 @@ public class DashboardTile implements Parcelable {
         summaryRes = in.readInt();
         summary = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
         iconRes = in.readInt();
+        iconPkg = in.readString();
         fragment = in.readString();
         fragmentArguments = in.readBundle();
         if (in.readInt() != 0) {
             intent = Intent.CREATOR.createFromParcel(in);
         }
+        final int N = in.readInt();
+        for (int i = 0; i < N; i++) {
+            userHandle.add(UserHandle.CREATOR.createFromParcel(in));
+        }
         extras = in.readBundle();
     }
 
diff --git a/src/com/android/settings/dashboard/DashboardTileView.java b/src/com/android/settings/dashboard/DashboardTileView.java
index a54217b..0896b82 100644
--- a/src/com/android/settings/dashboard/DashboardTileView.java
+++ b/src/com/android/settings/dashboard/DashboardTileView.java
@@ -16,14 +16,16 @@
 
 package com.android.settings.dashboard;
 
+import android.app.Activity;
 import android.content.Context;
 import android.util.AttributeSet;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.widget.FrameLayout;
-
 import android.widget.ImageView;
 import android.widget.TextView;
+
+import com.android.settings.ProfileSelectDialog;
 import com.android.settings.R;
 import com.android.settings.Utils;
 
@@ -93,7 +95,14 @@ public class DashboardTileView extends FrameLayout implements View.OnClickListen
             Utils.startWithFragment(getContext(), mTile.fragment, mTile.fragmentArguments, null, 0,
                     mTile.titleRes, mTile.getTitle(getResources()));
         } else if (mTile.intent != null) {
-            getContext().startActivity(mTile.intent);
+            int numUserHandles = mTile.userHandle.size();
+            if (numUserHandles > 1) {
+                ProfileSelectDialog.show(((Activity) getContext()).getFragmentManager(), mTile);
+            } else if (numUserHandles == 1) {
+                getContext().startActivityAsUser(mTile.intent, mTile.userHandle.get(0));
+            } else {
+                getContext().startActivity(mTile.intent);
+            }
         }
     }
 }