implement seamless scroll/flick in viewpager

5 files changed, 46 insertions, 46 deletions

diff --git a/src/it/sephiroth/android/library/imagezoom/ImageViewTouch.java b/src/it/sephiroth/android/library/imagezoom/ImageViewTouch.java
index de8a7da..73392b1 100644
--- a/src/it/sephiroth/android/library/imagezoom/ImageViewTouch.java
+++ b/src/it/sephiroth/android/library/imagezoom/ImageViewTouch.java
@@ -7,7 +7,6 @@ import android.graphics.RectF;
 import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
 import android.util.Log;
-import android.view.Display;
 import android.view.GestureDetector;
 import android.view.GestureDetector.OnGestureListener;
 import android.view.MotionEvent;
@@ -34,7 +33,7 @@ public class ImageViewTouch extends ImageViewTouchBase {
     private OnImageViewTouchDoubleTapListener doubleTapListener;
 
     public interface OnScaleChangedListener {
-		public void onScaleChanged(float scale, boolean widthFits);
+		public void onScaleChanged(float scale);
 	}
     
     protected OnScaleChangedListener mScaleChangedListener;
@@ -121,8 +120,7 @@ public class ImageViewTouch extends ImageViewTouchBase {
 		if ( !mScaleDetector.isInProgress() ) mCurrentScaleFactor = scale;
 		
 		if (mScaleChangedListener != null) {
-			RectF bitmapRect = getBitmapRect();			
-			mScaleChangedListener.onScaleChanged(mCurrentScaleFactor, getWidth() >= (bitmapRect.right - bitmapRect.left) - 3);
+			mScaleChangedListener.onScaleChanged(mCurrentScaleFactor);
 		}
 	}
 
diff --git a/src/org/fox/ttcomics/ComicFragment.java b/src/org/fox/ttcomics/ComicFragment.java
index da34ce4..d55b102 100644
--- a/src/org/fox/ttcomics/ComicFragment.java
+++ b/src/org/fox/ttcomics/ComicFragment.java
@@ -111,12 +111,12 @@ public class ComicFragment extends Fragment {
 			

 			image.setOnScaleChangedListener(new ImageViewTouch.OnScaleChangedListener() {

 				@Override

-				public void onScaleChanged(float scale, boolean widthFits) {

-					ViewPager pager = (ViewPager) getActivity().findViewById(R.id.comics_pager);

+				public void onScaleChanged(float scale) {

+					/* ViewPager pager = (ViewPager) getActivity().findViewById(R.id.comics_pager);

 					

 					if (pager != null) {

 						pager.setPagingEnabled(widthFits);

-					}

+					} */

 				}

 			}); 

 

@@ -154,11 +154,33 @@ public class ComicFragment extends Fragment {
 	}

 	

 	private void onLeftSideTapped() {

-		m_activity.selectPreviousComic();

+		ImageViewTouch image = (ImageViewTouch) getView().findViewById(R.id.comic_image);

+		

+		if (image != null) {

+			boolean atLeftEdge = !image.canScroll(1);

+			

+			if (atLeftEdge) {

+				m_activity.selectPreviousComic();

+			}

+		}

 	}

-

+	

+	public boolean canScroll(int direction) {

+		ImageViewTouch image = (ImageViewTouch) getView().findViewById(R.id.comic_image);

+		

+		return image.canScroll(direction);

+	}

+	

 	private void onRightSideTapped() {

-		m_activity.selectNextComic();

+		ImageViewTouch image = (ImageViewTouch) getView().findViewById(R.id.comic_image);

+		

+		if (image != null) {

+			boolean atRightEdge = !image.canScroll(-1);

+			

+			if (atRightEdge) {

+				m_activity.selectNextComic();

+			}

+		}

 	}

 

 	@Override

diff --git a/src/org/fox/ttcomics/ComicPager.java b/src/org/fox/ttcomics/ComicPager.java
index ab40936..934aaa7 100644
--- a/src/org/fox/ttcomics/ComicPager.java
+++ b/src/org/fox/ttcomics/ComicPager.java
@@ -164,17 +164,5 @@ public class ComicPager extends Fragment {
 

 		out.putString("fileName", m_fileName);

 	}

-

-	public boolean isPagingEnabled() {

-

-		ViewPager pager = (ViewPager) getView().findViewById(R.id.comics_pager);

-		

-		if (pager != null) {

-			return pager.isPagingEnabled();

-		}

-		

-		return false;

-	}

-	

 	

 }

diff --git a/src/org/fox/ttcomics/CommonActivity.java b/src/org/fox/ttcomics/CommonActivity.java
index 873ccd3..d535fe6 100644
--- a/src/org/fox/ttcomics/CommonActivity.java
+++ b/src/org/fox/ttcomics/CommonActivity.java
@@ -492,7 +492,7 @@ public class CommonActivity extends FragmentActivity {
 	public void selectPreviousComic() {

 		ComicPager frag = (ComicPager) getSupportFragmentManager().findFragmentByTag(FRAG_COMICS_PAGER);

 		

-		if (frag != null && frag.isAdded() && frag.getPosition() > 0 && frag.isPagingEnabled()) {

+		if (frag != null && frag.isAdded() && frag.getPosition() > 0) {

 			frag.setCurrentItem(frag.getPosition() - 1);

 		}		

 	}

@@ -500,11 +500,9 @@ public class CommonActivity extends FragmentActivity {
 	public void selectNextComic() {

 		ComicPager frag = (ComicPager) getSupportFragmentManager().findFragmentByTag(FRAG_COMICS_PAGER);

 		

-		if (frag != null && frag.isAdded() && frag.getPosition() < frag.getCount()-1 && frag.isPagingEnabled()) {

+		if (frag != null && frag.isAdded() && frag.getPosition() < frag.getCount()-1) {

 			frag.setCurrentItem(frag.getPosition() + 1);

 		}		

-		

-		

 	}

 

 	public void cleanupSqliteCache(String baseDir) {

diff --git a/src/org/fox/ttcomics/ViewPager.java b/src/org/fox/ttcomics/ViewPager.java
index c5d2f13..18bcc49 100644
--- a/src/org/fox/ttcomics/ViewPager.java
+++ b/src/org/fox/ttcomics/ViewPager.java
@@ -1,43 +1,37 @@
 package org.fox.ttcomics;

 

+import it.sephiroth.android.library.imagezoom.ImageViewTouch;

 import android.content.Context;

 import android.util.AttributeSet;

 import android.util.Log;

 import android.view.MotionEvent;

+import android.view.View;

 

 public class ViewPager extends android.support.v4.view.ViewPager {

 

 	private final String TAG = this.getClass().getSimpleName();

-    private boolean enabled;

 

     public ViewPager(Context context, AttributeSet attrs) {

         super(context, attrs);

-        this.enabled = true;

     }

 

     @Override

+    protected boolean canScroll(View v, boolean checkV, int dx, int x, int y) {

+    	if (v instanceof ImageViewTouch) {

+    		ImageViewTouch ivt = (ImageViewTouch) v;

+    		return ivt.canScroll(dx);

+    	} else {

+    		return super.canScroll(v, checkV, dx, x, y);

+    	}    	

+    }

+    

+    @Override

     public boolean onTouchEvent(MotionEvent event) {

-        if (this.enabled) {

-            return super.onTouchEvent(event);

-        }

-  

-        return false;

+    	return super.onTouchEvent(event);

     }

 

     @Override

     public boolean onInterceptTouchEvent(MotionEvent event) {

-        if (this.enabled) {

-            return super.onInterceptTouchEvent(event);

-        }

- 

-        return false;

-    }

- 

-    public void setPagingEnabled(boolean enabled) {

-        this.enabled = enabled;

-    }

-    

-    public boolean isPagingEnabled() {

-    	return this.enabled;

+    	return super.onInterceptTouchEvent(event);

     }

 }
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