Added scrollBarPanel attribute to ExtendedListView.

rno · Mar 19, 2012 · 254f9bb · 254f9bb
1 parent 8741a61
commit 254f9bb
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Showing 4 changed files with 48 additions and 38 deletions.
diff --git a/library/res/values/attrs.xml b/library/res/values/attrs.xml
@@ -0,0 +1,5 @@
+<resources>
+    <declare-styleable name="ExtendedListView">
+        <attr name="scrollBarPanel" format="reference" />
+    </declare-styleable>
+</resources>
diff --git a/library/src/com/dafruits/android/library/widgets/ExtendedListView.java b/library/src/com/dafruits/android/library/widgets/ExtendedListView.java
@@ -3,6 +3,7 @@
 import com.dafruits.android.library.R;
 
 import android.content.Context;
+import android.content.res.TypedArray;
 import android.graphics.Canvas;
 import android.os.Handler;
 import android.util.AttributeSet;
@@ -63,20 +64,51 @@ public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCoun
 
 
 	public ExtendedListView(Context context) {
-        super(context);
+        this(context, null);
-        init();
     }
 
 
     public ExtendedListView(Context context, AttributeSet attrs) {
-        super(context, attrs);
+        this(context, attrs, android.R.attr.listViewStyle);
-		init();
     }
 
 
     public ExtendedListView(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
-		init();
+
+    	super.setOnScrollListener(mScrollListener);
+
+        final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.ExtendedListView);
+        final int scrollBarPanelLayoutId = a.getResourceId(R.styleable.ExtendedListView_scrollBarPanel, -1);
+        a.recycle();
+
+        if (scrollBarPanelLayoutId != -1) {
+        	setScrollBarPanel(scrollBarPanelLayoutId);
+        }
+
+    	mScrollBarPanelFadeDuration = ViewConfiguration.getScrollBarFadeDuration() * 2;
+
+    	mInAnimation = AnimationUtils.loadAnimation(getContext(), R.anim.in_animation);
+    	mOutAnimation = AnimationUtils.loadAnimation(getContext(), R.anim.out_animation);
+
+    	mOutAnimation.setAnimationListener(new AnimationListener() {
+
+			@Override
+			public void onAnimationStart(Animation animation) {
+			}
+
+			@Override
+			public void onAnimationRepeat(Animation animation) {
+
+			}
+
+			@Override
+			public void onAnimationEnd(Animation animation) {
+				if (mScrollBarPanel != null) {
+					mScrollBarPanel.setVisibility(View.GONE);
+				}
+			}
+		});
     }
 
 
@@ -179,32 +211,4 @@ private void updateScrollerView() {
 
     	mHandler.postDelayed(mScrollBarPanelFadeRunnable, mScrollBarPanelFadeDuration);
     }
-
-
-    private void init() {
-    	super.setOnScrollListener(mScrollListener);
-    	mScrollBarPanelFadeDuration = ViewConfiguration.getScrollBarFadeDuration() * 2;
-
-    	mInAnimation = AnimationUtils.loadAnimation(getContext(), R.anim.in_animation);
-    	mOutAnimation = AnimationUtils.loadAnimation(getContext(), R.anim.out_animation);
-
-    	mOutAnimation.setAnimationListener(new AnimationListener() {
-
-			@Override
-			public void onAnimationStart(Animation animation) {
-			}
-
-			@Override
-			public void onAnimationRepeat(Animation animation) {
-
-			}
-
-			@Override
-			public void onAnimationEnd(Animation animation) {
-				if (mScrollBarPanel != null) {
-					mScrollBarPanel.setVisibility(View.GONE);
-				}
-			}
-		});
-    }
 }
diff --git a/sample/res/layout/main.xml b/sample/res/layout/main.xml
@@ -5,9 +5,11 @@
     android:orientation="vertical" >
 
     <com.dafruits.android.library.widgets.ExtendedListView
+        xmlns:dafruits="http://schemas.android.com/apk/res/com.dafruits.android.samples"
         android:id="@android:id/list"
         android:layout_width="fill_parent"
         android:layout_height="fill_parent"
-        android:choiceMode="singleChoice" />
+        android:choiceMode="singleChoice"
+        dafruits:scrollBarPanel="@layout/scrollbarpanel" />
 
 </LinearLayout>
diff --git a/sample/src/com/dafruits/android/samples/DemoScrollBarPanelActivity.java b/sample/src/com/dafruits/android/samples/DemoScrollBarPanelActivity.java
@@ -17,17 +17,15 @@
 public class DemoScrollBarPanelActivity extends Activity {
 
 	private ExtendedListView mListView;
-	private TextView mScrollBarPanel;
 
+
 	@Override
 	public void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 
 		setContentView(R.layout.main);
 
 		mListView = (ExtendedListView) findViewById(android.R.id.list);
-		mScrollBarPanel = (TextView) LayoutInflater.from(this).inflate(R.layout.scrollbarpanel, mListView, false);
-		mListView.setScrollBarPanel(mScrollBarPanel);
 		mListView.setAdapter(new DummyAdapter());
 		mListView.setCacheColorHint(Color.TRANSPARENT);
 		mListView.setOnScrollListener(new OnScrollListener() {
@@ -37,7 +35,8 @@ public void onScrollStateChanged(AbsListView view, int scrollState) {
 
 			@Override
 			public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
-				mScrollBarPanel.setText("Position " + firstVisibleItem);
+				final TextView scrollBarPanel = (TextView) mListView.getScrollBarPanel();
+				scrollBarPanel.setText("Position " + firstVisibleItem);
 			}
 		});
 	}