1 files changed, 75 insertions, 0 deletions
diff --git a/app/src/main/java/uk/co/blatech/blaupload/ui/ZoomViewPager.java b/app/src/main/java/uk/co/blatech/blaupload/ui/ZoomViewPager.java
new file mode 100644
index 0000000..e0b837e
--- /dev/null
+++ b/app/src/main/java/uk/co/blatech/blaupload/ui/ZoomViewPager.java
@@ -0,0 +1,75 @@
+package uk.co.blatech.blaupload.ui;
+
+import android.content.Context;
+import android.support.v4.view.ViewPager;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+
+/**
+ * Found at http://stackoverflow.com/questions/7814017/is-it-possible-to-disable-scrolling-on-a-viewpager.
+ * Convenient way to temporarily disable ViewPager navigation while interacting with ImageView.
+ *
+ * Julia Zudikova
+ */
+
+/**
+ * Hacky fix for Issue #4 and
+ * http://code.google.com/p/android/issues/detail?id=18990
+ * <p/>
+ * ScaleGestureDetector seems to mess up the touch events, which means that
+ * ViewGroups which make use of onInterceptTouchEvent throw a lot of
+ * IllegalArgumentException: pointerIndex out of range.
+ * <p/>
+ * There's not much I can do in my code for now, but we can mask the result by
+ * just catching the problem and ignoring it.
+ *
+ * @author Chris Banes
+ */
+public class ZoomViewPager extends ViewPager {
+
+    private boolean isLocked;
+
+    public ZoomViewPager(Context context) {
+        super(context);
+        isLocked = false;
+    }
+
+    public ZoomViewPager(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        isLocked = false;
+    }
+
+    @Override
+    public boolean onInterceptTouchEvent(MotionEvent ev) {
+        if (!isLocked) {
+            try {
+                return super.onInterceptTouchEvent(ev);
+            } catch (IllegalArgumentException e) {
+                e.printStackTrace();
+                return false;
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        if (!isLocked) {
+            return super.onTouchEvent(event);
+        }
+        return false;
+    }
+
+    public void toggleLock() {
+        isLocked = !isLocked;
+    }
+
+    public void setLocked(boolean isLocked) {
+        this.isLocked = isLocked;
+    }
+
+    public boolean isLocked() {
+        return isLocked;
+    }
+
+}
+\ No newline at end of file