Settings new dashboard - part 2

Introduce the new Dashboard (a grid like presentation of
Settings top categories) per UX specification.

- the Dashboard is composed of "categories" and in each of them
you have "tiles"
- implement a new layout for showing top categories
(DashboardContainerView). This layout basically acts like a
grid
- depending on the device configuration make the grid with 1
column in portrait / 2 colums in landscape (phones) OR 2 columns
in portrait and 3 in landscape (tablets)
- take care of Accounts adding and removing (as it changes the
number of tiles to show)

Also remove all the old code related to Headers

Change-Id: Ie29944132c1b4c3f7b073d5a7d4453b8f5ec19a7

src/com/android/settings/dashboard/DashboardTileView.java

@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2014 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.dashboard;
+
+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.R;
+import com.android.settings.Utils;
+
+public class DashboardTileView extends FrameLayout implements View.OnClickListener {
+
+    private static final int DEFAULT_COL_SPAN = 1;
+
+    private ImageView mImageView;
+    private TextView mTitleTextView;
+    private TextView mStatusTextView;
+
+    private int mColSpan = DEFAULT_COL_SPAN;
+
+    private DashboardTile mTile;
+
+    public DashboardTileView(Context context) {
+        this(context, null);
+    }
+
+    public DashboardTileView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+
+        final View view = LayoutInflater.from(context).inflate(R.layout.dashboard_tile, this);
+
+        mImageView = (ImageView) view.findViewById(R.id.icon);
+        mTitleTextView = (TextView) view.findViewById(R.id.title);
+        mStatusTextView = (TextView) view.findViewById(R.id.status);
+
+        setOnClickListener(this);
+    }
+
+    public TextView getTitleTextView() {
+        return mTitleTextView;
+    }
+
+    public TextView getStatusTextView() {
+        return mStatusTextView;
+    }
+
+    public ImageView getImageView() {
+        return mImageView;
+    }
+
+    public void setTile(DashboardTile tile) {
+        mTile = tile;
+    }
+
+    void setColumnSpan(int span) {
+        mColSpan = span;
+    }
+
+    int getColumnSpan() {
+        return mColSpan;
+    }
+
+    @Override
+    public void onClick(View v) {
+        if (mTile.fragment != null) {
+            Utils.startWithFragment(getContext(), mTile.fragment, mTile.fragmentArguments, null, 0,
+                    mTile.getTitle(getResources()));
+        } else if (mTile.intent != null) {
+            getContext().startActivity(mTile.intent);
+        }
+    }
+}