Adding switcher background back in

Fixed switcher background's rotation issue.
Bug: 8436031

Change-Id: Icc6c3fa38c98587c1ff37fea7d53980679943938

1 files changed, 64 insertions, 0 deletions

diff --git a/src/com/android/camera/ui/SwitcherBackgroundView.java b/src/com/android/camera/ui/SwitcherBackgroundView.java
new file mode 100644
index 000000000..710412cce
--- /dev/null
+++ b/src/com/android/camera/ui/SwitcherBackgroundView.java
@@ -0,0 +1,64 @@
+/*
+ * 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.camera.ui;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.res.Configuration;
+import android.util.AttributeSet;
+import android.view.Gravity;
+import android.view.View;
+import android.widget.FrameLayout.LayoutParams;
+
+import com.android.camera.Util;
+import com.android.gallery3d.R;
+
+/*
+ * This is a simple view that has a gradient background. The background
+ * needs to rotate when orientation changes, so that the side of the drawable
+ * that is dark is always aligned to the side of the screen, and the side that is
+ * closer to the center of the screen is transparent.
+ * */
+public class SwitcherBackgroundView extends View
+{
+    public SwitcherBackgroundView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        setBackgroundResource(R.drawable.switcher_bg);
+    }
+
+    public SwitcherBackgroundView(Context context) {
+        super(context);
+        setBackgroundResource(R.drawable.switcher_bg);
+    }
+    @Override
+    public void onConfigurationChanged(Configuration config) {
+        super.onConfigurationChanged(config);
+        // remove current drawable and reset rotation
+        setBackgroundDrawable(null);
+        setRotationX(0);
+        setRotationY(0);
+        // if the switcher background is top aligned we need to flip the background
+        // drawable vertically; if left aligned, flip horizontally
+        int gravity = ((LayoutParams) getLayoutParams()).gravity;
+        if ((gravity & Gravity.TOP) == Gravity.TOP) {
+            setRotationX(180);
+        } else if ((gravity & Gravity.LEFT) == Gravity.LEFT) {
+            setRotationY(180);
+        }
+        setBackgroundResource(R.drawable.switcher_bg);
+    }
+}