Initial rough stab at a proc stats UI.

You see procs, and you see some stats.

Change-Id: I91c86d198fd5e64a41c72901e150466b3c602caf

src/com/android/settings/applications/ProcessStatsPreference.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 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.
+ */
+
+package com.android.settings.applications;
+
+import android.content.Context;
+import android.graphics.drawable.ColorDrawable;
+import android.graphics.drawable.Drawable;
+import android.preference.Preference;
+import android.text.format.Formatter;
+import android.view.View;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+import com.android.settings.R;
+
+public class ProcessStatsPreference extends Preference {
+    private int mProgress;
+    private CharSequence mProgressText;
+
+    public ProcessStatsPreference(Context context, Drawable icon) {
+        super(context);
+        setLayoutResource(R.layout.app_percentage_item);
+        setIcon(icon != null ? icon : new ColorDrawable(0));
+    }
+
+    public void setPercent(double percentOfTotal, long pss) {
+        mProgress = (int) Math.ceil(percentOfTotal);
+        mProgressText = pss > 0 ? Formatter.formatShortFileSize(getContext(), pss) : "";
+        notifyChanged();
+    }
+
+    @Override
+    protected void onBindView(View view) {
+        super.onBindView(view);
+
+        final ProgressBar progress = (ProgressBar) view.findViewById(android.R.id.progress);
+        progress.setProgress(mProgress);
+
+        final TextView text1 = (TextView) view.findViewById(android.R.id.text1);
+        text1.setText(mProgressText);
+    }
+}