Refactor SmsListPreference into AppListPreference.

This generalizes the pattern of needing to offer a selection among a
list of candidate applications.

Also move some reusable logic around querying PackageManager for icons
into AppListPreference, and remove some unnecessary update logic: the
preference will update itself when onPreferenceChange returns true,
and we can set the summary to '%s' to automatically use the entry as
the summary without having to reset it each time.

Change-Id: I007b9ed58359302f93b367a4b86354e93613bf3e

1 files changed, 41 insertions, 0 deletions

diff --git a/res/layout/app_preference_item.xml b/res/layout/app_preference_item.xml
new file mode 100755
index 0000000..22ee37e
--- /dev/null
+++ b/res/layout/app_preference_item.xml
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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.
+*/
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="?android:attr/listPreferredItemHeight"
+    android:padding="6dip">
+    <ImageView
+        android:id="@+id/app_image"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:padding="6dip"
+    />
+    <CheckedTextView
+        android:id="@+id/app_label"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:minHeight="?android:attr/listPreferredItemHeight"
+        android:textAppearance="?android:attr/textAppearanceLarge"
+        android:textColor="?android:attr/textColorAlertDialogListItem"
+        android:gravity="center_vertical"
+        android:paddingEnd="7dip"
+        android:checkMark="?android:attr/listChoiceIndicatorSingle"
+        android:ellipsize="marquee"
+    />
+</LinearLayout>