继承于viewpager 可以和photoView一起使用，实现相册图片的左右滑动，放大缩小，等
package davidwang.tm.view; import android.content.Context;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.view.MotionEvent; /**
* Found at http://*.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 HackyViewPager extends ViewPager { private boolean isLocked; public HackyViewPager(Context context) {
super(context);
isLocked = false;
} public HackyViewPager(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;
} }