Move AppPreference to SettingsLib so other apps can use it.

Change-Id: I5240dcacdcd8b87a0965a0a9359cd7832b42e590
Fixes: 116364655
Test: robotests
diff --git a/packages/SettingsLib/AppPreference/Android.bp b/packages/SettingsLib/AppPreference/Android.bp
new file mode 100644
index 0000000..b56181d
--- /dev/null
+++ b/packages/SettingsLib/AppPreference/Android.bp
@@ -0,0 +1,13 @@
+android_library {
+    name: "SettingsLibAppPreference",
+
+    srcs: ["src/**/*.java"],
+    resource_dirs: ["res"],
+
+    libs: [
+        "androidx.annotation_annotation",
+        "androidx.preference_preference",
+    ],
+    sdk_version: "system_current",
+    min_sdk_version: "21",
+}
diff --git a/packages/SettingsLib/AppPreference/AndroidManifest.xml b/packages/SettingsLib/AppPreference/AndroidManifest.xml
new file mode 100644
index 0000000..7e71308
--- /dev/null
+++ b/packages/SettingsLib/AppPreference/AndroidManifest.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2018 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.
+  -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.android.settingslib.widget.apppreference">
+
+    <uses-sdk android:minSdkVersion="21" />
+
+</manifest>
diff --git a/packages/SettingsLib/AppPreference/res/layout/preference_app.xml b/packages/SettingsLib/AppPreference/res/layout/preference_app.xml
new file mode 100644
index 0000000..6d35550
--- /dev/null
+++ b/packages/SettingsLib/AppPreference/res/layout/preference_app.xml
@@ -0,0 +1,100 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2018 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="wrap_content"
+    android:background="?android:attr/selectableItemBackground"
+    android:gravity="center_vertical"
+    android:minHeight="?android:attr/listPreferredItemHeightSmall"
+    android:paddingStart="?android:attr/listPreferredItemPaddingStart"
+    android:paddingEnd="?android:attr/listPreferredItemPaddingEnd">
+
+    <LinearLayout
+        android:id="@+id/icon_frame"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:gravity="start|center_vertical"
+        android:minWidth="56dp"
+        android:orientation="horizontal"
+        android:paddingEnd="8dp"
+        android:paddingTop="4dp"
+        android:paddingBottom="4dp">
+        <ImageView
+            android:id="@android:id/icon"
+            android:layout_width="@dimen/secondary_app_icon_size"
+            android:layout_height="@dimen/secondary_app_icon_size"/>
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:orientation="vertical"
+        android:paddingTop="16dp"
+        android:paddingBottom="16dp">
+
+        <TextView android:id="@android:id/title"
+                  android:layout_width="wrap_content"
+                  android:layout_height="wrap_content"
+                  android:singleLine="true"
+                  android:textAppearance="@android:style/TextAppearance.Material.Subhead"
+                  android:ellipsize="marquee"
+                  android:fadingEdge="horizontal"/>
+
+        <LinearLayout
+            android:id="@+id/summary_container"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:visibility="gone">
+            <TextView android:id="@android:id/summary"
+                      android:layout_width="0dp"
+                      android:layout_height="wrap_content"
+                      android:layout_weight="1"
+                      android:textAppearance="@android:style/TextAppearance.Material.Small"
+                      android:textAlignment="viewStart"
+                      android:textColor="?android:attr/textColorSecondary"/>
+
+            <TextView android:id="@+id/appendix"
+                      android:layout_width="0dp"
+                      android:layout_height="wrap_content"
+                      android:layout_weight="1"
+                      android:textAppearance="@android:style/TextAppearance.Material.Small"
+                      android:textAlignment="viewEnd"
+                      android:textColor="?android:attr/textColorSecondary"
+                      android:maxLines="1"
+                      android:ellipsize="end"/>
+        </LinearLayout>
+        <ProgressBar
+            android:id="@android:id/progress"
+            style="?android:attr/progressBarStyleHorizontal"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="4dp"
+            android:max="100"
+            android:visibility="gone"/>
+    </LinearLayout>
+
+    <LinearLayout
+        android:id="@android:id/widget_frame"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:gravity="center"
+        android:minWidth="64dp"
+        android:orientation="vertical"/>
+
+</LinearLayout>
diff --git a/packages/SettingsLib/AppPreference/res/values/dimens.xml b/packages/SettingsLib/AppPreference/res/values/dimens.xml
new file mode 100644
index 0000000..e2a7a19
--- /dev/null
+++ b/packages/SettingsLib/AppPreference/res/values/dimens.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2018 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.
+  -->
+
+<resources>
+    <dimen name="secondary_app_icon_size">32dp</dimen>
+</resources>
\ No newline at end of file
diff --git a/packages/SettingsLib/AppPreference/src/com/android/settingslib/widget/apppreference/AppPreference.java b/packages/SettingsLib/AppPreference/src/com/android/settingslib/widget/apppreference/AppPreference.java
new file mode 100644
index 0000000..593b6f5
--- /dev/null
+++ b/packages/SettingsLib/AppPreference/src/com/android/settingslib/widget/apppreference/AppPreference.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2018 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.
+ */
+
+package com.android.settingslib.widget.apppreference;
+
+import android.content.Context;
+import android.text.TextUtils;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.ProgressBar;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceViewHolder;
+
+public class AppPreference extends Preference {
+
+    private int mProgress;
+    private boolean mProgressVisible;
+
+    public AppPreference(Context context) {
+        super(context);
+        setLayoutResource(R.layout.preference_app);
+    }
+
+    public AppPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        setLayoutResource(R.layout.preference_app);
+    }
+
+    public void setProgress(int amount) {
+        mProgress = amount;
+        mProgressVisible = true;
+        notifyChanged();
+    }
+
+    @Override
+    public void onBindViewHolder(PreferenceViewHolder view) {
+        super.onBindViewHolder(view);
+
+        view.findViewById(R.id.summary_container)
+                .setVisibility(TextUtils.isEmpty(getSummary()) ? View.GONE : View.VISIBLE);
+        final ProgressBar progress = (ProgressBar) view.findViewById(android.R.id.progress);
+        if (mProgressVisible) {
+            progress.setProgress(mProgress);
+            progress.setVisibility(View.VISIBLE);
+        } else {
+            progress.setVisibility(View.GONE);
+        }
+    }
+}
\ No newline at end of file