SupportLeanbackDemo: demo of custom theme of ImageCardView

Change-Id: I8ba65d9d6ffbc461460acff99ac1c3125eb87d00

samples/SupportLeanbackDemos/res/values/styles.xml

@@ -29,4 +29,22 @@
     <style name="Widget.Example.Leanback.SecondStepGuidanceIconStyle" parent="Widget.Leanback.GuidanceIconStyle">
         <item name="android:padding">24dp</item>
     </style>
+
+    <style name="MyImageCardViewStyle" parent="Widget.Leanback.ImageCardViewStyle">
+        <item name="lbImageCardViewType">Title|Content|IconOnRight</item>
+    </style>
+
+    <style name="MyImageCardViewTitleStyleText" parent="TextAppearance.Leanback.ImageCardView.Title">
+        <item name="android:textColor">@android:color/holo_blue_bright</item>
+    </style>
+
+    <style name="MyImageCardViewTitleStyle" parent="Widget.Leanback.ImageCardView.TitleStyle">
+        <item name="android:textAppearance">@style/MyImageCardViewTitleStyleText</item>
+    </style>
+
+    <style name="MyImageCardViewTheme" parent="Theme.Leanback">
+        <item name="imageCardViewStyle">@style/MyImageCardViewStyle</item>
+        <item name="imageCardViewTitleStyle">@style/MyImageCardViewTitleStyle</item>
+    </style>
+
 </resources>

samples/SupportLeanbackDemos/src/com/example/android/leanback/BrowseFragment.java

@@ -37,15 +37,14 @@ public class BrowseFragment extends android.support.v17.leanback.app.BrowseFragm
 
     private static final boolean TEST_ENTRANCE_TRANSITION = true;
     private static final int NUM_ROWS = 10;
-    // Row heights default to wrap content
-    private static final boolean USE_FIXED_ROW_HEIGHT = false;
 
     private ArrayObjectAdapter mRowsAdapter;
     private BackgroundHelper mBackgroundHelper = new BackgroundHelper();
 
     // For good performance, it's important to use a single instance of
     // a card presenter for all rows using that presenter.
-    final static CardPresenter sCardPresenter = new CardPresenter();
+    final CardPresenter mCardPresenter = new CardPresenter();
+    final CardPresenter mCardPresenter2 = new CardPresenter(R.style.MyImageCardViewTheme);
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -99,11 +98,6 @@ public class BrowseFragment extends android.support.v17.leanback.app.BrowseFragm
     private void setupRows() {
         ListRowPresenter lrp = new ListRowPresenter();
 
-        if (USE_FIXED_ROW_HEIGHT) {
-            lrp.setRowHeight(CardPresenter.getRowHeight(getActivity()));
-            lrp.setExpandedRowHeight(CardPresenter.getExpandedRowHeight(getActivity()));
-        }
-
         mRowsAdapter = new ArrayObjectAdapter(lrp);
 
         setAdapter(mRowsAdapter);
@@ -111,7 +105,8 @@ public class BrowseFragment extends android.support.v17.leanback.app.BrowseFragm
 
     private void loadData() {
         for (int i = 0; i < NUM_ROWS; ++i) {
-            ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(sCardPresenter);
+            ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter((i & 1) == 0 ?
+                    mCardPresenter : mCardPresenter2);
             listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_1));
             listRowAdapter.add(new PhotoItem("This is a test", "Only a test", R.drawable.gallery_photo_2));
             listRowAdapter.add(new PhotoItem("Android TV", "by Google", R.drawable.gallery_photo_3));

samples/SupportLeanbackDemos/src/com/example/android/leanback/BrowseSupportFragment.java

@@ -39,15 +39,14 @@ public class BrowseSupportFragment extends android.support.v17.leanback.app.Brow
 
     private static final boolean TEST_ENTRANCE_TRANSITION = true;
     private static final int NUM_ROWS = 10;
-    // Row heights default to wrap content
-    private static final boolean USE_FIXED_ROW_HEIGHT = false;
 
     private ArrayObjectAdapter mRowsAdapter;
     private BackgroundHelper mBackgroundHelper = new BackgroundHelper();
 
     // For good performance, it's important to use a single instance of
     // a card presenter for all rows using that presenter.
-    final static CardPresenter sCardPresenter = new CardPresenter();
+    final CardPresenter mCardPresenter = new CardPresenter();
+    final CardPresenter mCardPresenter2 = new CardPresenter(R.style.MyImageCardViewTheme);
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -101,11 +100,6 @@ public class BrowseSupportFragment extends android.support.v17.leanback.app.Brow
     private void setupRows() {
         ListRowPresenter lrp = new ListRowPresenter();
 
-        if (USE_FIXED_ROW_HEIGHT) {
-            lrp.setRowHeight(CardPresenter.getRowHeight(getActivity()));
-            lrp.setExpandedRowHeight(CardPresenter.getExpandedRowHeight(getActivity()));
-        }
-
         mRowsAdapter = new ArrayObjectAdapter(lrp);
 
         setAdapter(mRowsAdapter);
@@ -113,7 +107,8 @@ public class BrowseSupportFragment extends android.support.v17.leanback.app.Brow
 
     private void loadData() {
         for (int i = 0; i < NUM_ROWS; ++i) {
-            ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(sCardPresenter);
+            ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter((i & 1) == 0 ?
+                    mCardPresenter : mCardPresenter2);
             listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_1));
             listRowAdapter.add(new PhotoItem("This is a test", "Only a test", R.drawable.gallery_photo_2));
             listRowAdapter.add(new PhotoItem("Android TV", "by Google", R.drawable.gallery_photo_3));

samples/SupportLeanbackDemos/src/com/example/android/leanback/CardPresenter.java

@@ -15,11 +15,13 @@ package com.example.android.leanback;
 
 import android.content.Context;
 import android.graphics.drawable.Drawable;
+import com.example.android.leanback.R;
 import android.support.v17.leanback.widget.ImageCardView;
 import android.support.v17.leanback.widget.Presenter;
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.ViewGroup;
+import android.view.ContextThemeWrapper;
 import android.view.View.MeasureSpec;
 import android.view.ViewGroup.LayoutParams;
 import android.widget.TextView;
@@ -32,38 +34,56 @@ public class CardPresenter extends Presenter {
     private static final int IMAGE_HEIGHT_DP = 120;
 
     private static Random sRand = new Random();
-    private static int sRowHeight = 0;
+    private int mRowHeight = 0;
-    private static int sExpandedRowHeight = 0;
+    private int mExpandedRowHeight = 0;
 
-    private static void setupRowHeights(Context context) {
+    private int mCardThemeResId;
-        if (sRowHeight == 0) {
+    private Context mContextThemeWrapper;
+
+    public CardPresenter(int cardThemeResId) {
+        mCardThemeResId = cardThemeResId;
+    }
+
+    public CardPresenter() {
+        mCardThemeResId = 0;
+    }
+
+    private void setupRowHeights(Context context) {
+        if (mRowHeight == 0) {
             float density = context.getResources().getDisplayMetrics().density;
             int height = (int) (IMAGE_HEIGHT_DP * density + 0.5f);
 
             ImageCardView v = new ImageCardView(context);
             v.setMainImageDimensions(LayoutParams.WRAP_CONTENT, height);
             v.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
-            sRowHeight = v.getMeasuredHeight();
+            mRowHeight = v.getMeasuredHeight();
             v.setActivated(true);
             v.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
-            sExpandedRowHeight = v.getMeasuredHeight();
+            mExpandedRowHeight = v.getMeasuredHeight();
         }
     }
 
-    public static int getRowHeight(Context context) {
+    public int getRowHeight(Context context) {
         setupRowHeights(context);
-        return sRowHeight;
+        return mRowHeight;
     }
 
-    public static int getExpandedRowHeight(Context context) {
+    public int getExpandedRowHeight(Context context) {
         setupRowHeights(context);
-        return sExpandedRowHeight;
+        return mExpandedRowHeight;
     }
 
     @Override
     public ViewHolder onCreateViewHolder(ViewGroup parent) {
         Log.d(TAG, "onCreateViewHolder");
-        ImageCardView v = new ImageCardView(parent.getContext());
+        Context context = parent.getContext();
+        if (mCardThemeResId != 0) {
+            if (mContextThemeWrapper == null) {
+                mContextThemeWrapper = new ContextThemeWrapper(context, mCardThemeResId);
+            }
+            context = mContextThemeWrapper;
+        }
+        ImageCardView v = new ImageCardView(context);
         v.setFocusable(true);
         v.setFocusableInTouchMode(true);
         // Randomly makes image view crop as a square or just stretch to original

samples/SupportLeanbackDemos/src/com/example/android/leanback/RowsFragment.java

@@ -73,17 +73,17 @@ public class RowsFragment extends android.support.v17.leanback.app.RowsFragment
     private void setupRows() {
         ListRowPresenter lrp = new ListRowPresenter();
 
-        if (USE_FIXED_ROW_HEIGHT) {
-            lrp.setRowHeight(CardPresenter.getRowHeight(getActivity()));
-            lrp.setExpandedRowHeight(CardPresenter.getExpandedRowHeight(getActivity()));
-        }
-
-        mRowsAdapter = new ArrayObjectAdapter(lrp);
-
         // For good performance, it's important to use a single instance of
         // a card presenter for all rows using that presenter.
         final CardPresenter cardPresenter = new CardPresenter();
 
+        if (USE_FIXED_ROW_HEIGHT) {
+            lrp.setRowHeight(cardPresenter.getRowHeight(getActivity()));
+            lrp.setExpandedRowHeight(cardPresenter.getExpandedRowHeight(getActivity()));
+        }
+
+        mRowsAdapter = new ArrayObjectAdapter(lrp);
+
         for (int i = 0; i < NUM_ROWS; ++i) {
             ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(cardPresenter);
             listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_1));

samples/SupportLeanbackDemos/src/com/example/android/leanback/RowsSupportFragment.java

@@ -75,17 +75,17 @@ public class RowsSupportFragment extends android.support.v17.leanback.app.RowsSu
     private void setupRows() {
         ListRowPresenter lrp = new ListRowPresenter();
 
-        if (USE_FIXED_ROW_HEIGHT) {
-            lrp.setRowHeight(CardPresenter.getRowHeight(getActivity()));
-            lrp.setExpandedRowHeight(CardPresenter.getExpandedRowHeight(getActivity()));
-        }
-
-        mRowsAdapter = new ArrayObjectAdapter(lrp);
-
         // For good performance, it's important to use a single instance of
         // a card presenter for all rows using that presenter.
         final CardPresenter cardPresenter = new CardPresenter();
 
+        if (USE_FIXED_ROW_HEIGHT) {
+            lrp.setRowHeight(cardPresenter.getRowHeight(getActivity()));
+            lrp.setExpandedRowHeight(cardPresenter.getExpandedRowHeight(getActivity()));
+        }
+
+        mRowsAdapter = new ArrayObjectAdapter(lrp);
+
         for (int i = 0; i < NUM_ROWS; ++i) {
             ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(cardPresenter);
             listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_1));