我已经成功地做到这一点使用下面的重载ViewPager类:
import android.R;
import android.content.Context;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.util.Log;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ListView;
import org.ftang.model.Program;
public class TouchingViewPager extends ViewPager {
private GestureDetector gestureScanner;
public TouchingViewPager(Context context) {
super(context);
gestureScanner = new GestureDetector(simpleOnGestureListener);
}
public TouchingViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
gestureScanner = new GestureDetector(simpleOnGestureListener);
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
int currentItem = getCurrentItem();
gestureScanner.onTouchEvent(ev);
return super.onTouchEvent(ev);
}
GestureDetector.SimpleOnGestureListener simpleOnGestureListener = new GestureDetector.SimpleOnGestureListener() {
public boolean onDown(Math event) {
return true;
}
public boolean onFling(MotionEvent event1, MotionEvent event2, float velocityX, float velocityY) {
Log.d(null,"Fling");
int MAJOR_MOVE = 120;
if (event1 == null) event1 = MotionEvent.obtain(0, 0, 0, 0, 0, 0);
int dx = (int) (event2.getX() - event1.getX());
// don't accept the fling if it's too short
// as it may conflict with a button push
if (Math.abs(dx) > MAJOR_MOVE && Math.abs(velocityX) > Math.abs(velocityY)) {
if (velocityX > 0) {
// nothing
} else {
ListView liveView = (ListView) findViewById(R.id.list);
Program program = (Program) liveView.getAdapter()
.getItem(liveView.pointToPosition((int)event1.getX(), (int)event1.getY()));
program.getName();
}
return true;
} else {
return false;
}
}
};
}
请注意,我在的onTouchEvent再次呼吁gestureScanner。我想我可以以某种方式连线自定义的getsutureScanner,以便处理所有的触摸事件。然而,由于我不熟悉如何处理ViewPager事件,我决定并排调用我自己的处理程序。
如果有更好的方法来做到这一点 - 请让我知道。