Switch to use small icon for most app related pages

- Renamed AppProgressPreference to AppPreference to handle most app
  related prefs
- Add ed AppSwitchPreference - the same layout as AppPreference except
  it's a SwitchPreference
- Use above 2 prefs in most app related pages.
  - Everything under special access pages
  - Recent app list in App & notifications
  - App data usage detail page
  - Default app picker pages

Bug: 65182905
Test: robotests
Change-Id: I96c980ba1db49e36dabe25b5eade1197215aad11

src/com/android/settings/widget/AppPreference.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2017 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.settings.widget;
+
+import android.content.Context;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.PreferenceViewHolder;
+import android.text.TextUtils;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.ProgressBar;
+
+import com.android.settings.R;
+
+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);
+        }
+    }
+}