1 files changed, 68 insertions, 0 deletions
diff --git a/photoviewer/src/com/android/ex/photo/views/ProgressBarWrapper.java b/photoviewer/src/com/android/ex/photo/views/ProgressBarWrapper.java
new file mode 100644
index 0000000..77b9000
--- /dev/null
+++ b/photoviewer/src/com/android/ex/photo/views/ProgressBarWrapper.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2012 Google Inc.
+ * Licensed to 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.ex.photo.views;
+
+import android.view.View;
+import android.widget.ProgressBar;
+
+/**
+ * This class wraps around two progress bars and is solely designed to fix
+ * a bug in the framework (b/6928449) that prevents a progress bar from
+ * gracefully switching back and forth between indeterminate and determinate
+ * modes.
+ */
+public class ProgressBarWrapper {
+    private ProgressBar mDeterminate;
+    private ProgressBar mIndeterminate;
+    private boolean mIsIndeterminate;
+
+    public ProgressBarWrapper(ProgressBar determinate,
+            ProgressBar indeterminate, boolean isIndeterminate) {
+        mDeterminate = determinate;
+        mIndeterminate = indeterminate;
+        setIndeterminate(isIndeterminate);
+    }
+
+    public void setIndeterminate(boolean isIndeterminate) {
+        mIsIndeterminate = isIndeterminate;
+
+        setVisibility(mIsIndeterminate);
+    }
+
+    public void setVisibility(int visibility) {
+        if (visibility == View.INVISIBLE || visibility == View.GONE) {
+            mIndeterminate.setVisibility(visibility);
+            mDeterminate.setVisibility(visibility);
+        } else {
+            setVisibility(mIsIndeterminate);
+        }
+    }
+
+    private void setVisibility(boolean isIndeterminate) {
+        mIndeterminate.setVisibility(isIndeterminate ? View.VISIBLE : View.GONE);
+        mDeterminate.setVisibility(isIndeterminate ? View.GONE : View.VISIBLE);
+    }
+
+    public void setMax(int max) {
+        mDeterminate.setMax(max);
+    }
+
+    public void setProgress(int progress) {
+        mDeterminate.setProgress(progress);
+    }
+}