Final UI for Attachment Previews.

Placeholder pulsates for images not yet loaded.
One images loads at a time, that one image will display a spinning progressbar
after a delay.
Progress bar fixes to ensure it is rotates smoothly.
Clear section before drawing to it so transparent images look right.
Avoid PhotoManager load loop.

Bug: 9745486
Bug: 9816053
Change-Id: I2e65b3e3484d6da47d4e2523404dc745b99dd04c

1 files changed, 34 insertions, 0 deletions

diff --git a/res/drawable/progress_holo.xml b/res/drawable/progress_holo.xml
new file mode 100644
index 000000000..d4ad73330
--- /dev/null
+++ b/res/drawable/progress_holo.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 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.
+-->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <rotate
+                android:drawable="@drawable/ic_spinner_outer_holo"
+                android:pivotX="50%"
+                android:pivotY="50%"
+                android:fromDegrees="0"
+                android:toDegrees="1080" />
+    </item>
+    <item>
+        <rotate
+                android:drawable="@drawable/ic_spinner_inner_holo"
+                android:pivotX="50%"
+                android:pivotY="50%"
+                android:fromDegrees="720"
+                android:toDegrees="0" />
+    </item>
+</layer-list>
\ No newline at end of file