Eleven: Add loading dialogs to all fragments

Some fragments intentionally don't show the loading dialog on recreate to prevent a split second flash on the screen
Loading is delayed by 300ms for better user experience
Fixed a small bug in the RecentStore

https://cyanogen.atlassian.net/browse/MUSIC-63

Change-Id: I5bd7ee25234d0146887f152bbcb57fed6bbb2c01

1 files changed, 71 insertions, 0 deletions

diff --git a/src/com/cyngn/eleven/widgets/LoadingEmptyContainer.java b/src/com/cyngn/eleven/widgets/LoadingEmptyContainer.java
new file mode 100644
index 0000000..0522439
--- /dev/null
+++ b/src/com/cyngn/eleven/widgets/LoadingEmptyContainer.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2014 Cyanogen, Inc.
+ */
+package com.cyngn.eleven.widgets;
+
+import android.content.Context;
+import android.os.Handler;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.FrameLayout;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import com.cyngn.eleven.R;
+
+/**
+ * This class is the default empty state view for most listviews/fragments
+ * It allows the ability to set a main text, a main highlight text and a secondary text
+ * By default this container has some strings loaded, but other classes can call the apis to change
+ * the text
+ */
+public class LoadingEmptyContainer extends FrameLayout {
+    private static final int LOADING_DELAY = 300;
+
+    private Handler mHandler;
+    private Runnable mShowLoadingRunnable;
+
+    public LoadingEmptyContainer(Context context, AttributeSet attrs) {
+        super(context, attrs);
+
+        mHandler = new Handler();
+        mShowLoadingRunnable = new Runnable() {
+            @Override
+            public void run() {
+                findViewById(R.id.progressbar).setVisibility(View.VISIBLE);
+                getNoResultsContainer().setVisibility(View.INVISIBLE);
+            }
+        };
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+
+        hideAll();
+    }
+
+    public void hideAll() {
+        findViewById(R.id.progressbar).setVisibility(View.INVISIBLE);
+        getNoResultsContainer().setVisibility(View.INVISIBLE);
+    }
+
+    public void showLoading() {
+        hideAll();
+
+        if (!mHandler.hasCallbacks(mShowLoadingRunnable)) {
+            mHandler.postDelayed(mShowLoadingRunnable, LOADING_DELAY);
+        }
+    }
+
+    public void showNoResults() {
+        mHandler.removeCallbacks(mShowLoadingRunnable);
+
+        findViewById(R.id.progressbar).setVisibility(View.INVISIBLE);
+        getNoResultsContainer().setVisibility(View.VISIBLE);
+    }
+
+    public NoResultsContainer getNoResultsContainer() {
+        return (NoResultsContainer)findViewById(R.id.no_results_container);
+    }
+}