android Gallery做图片滚动,每次滑动翻一页
16lz
2021-01-23
import android.content.Context;import android.util.AttributeSet;import android.view.KeyEvent;import android.view.MotionEvent;import android.widget.Gallery;public class GuideGallery extends Gallery {public GuideGallery(Context context) {super(context);// TODO Auto-generated constructor stub}public GuideGallery(Context context,AttributeSet attrs) {super(context, attrs);// TODO Auto-generated constructor stub}public GuideGallery(Context context, AttributeSet attrs,int defStyle) {super(context, attrs, defStyle);}@Overridepublic boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,float velocityY) {// TODO Auto-generated method stubint kEvent; if(isScrollingLeft(e1, e2)){ //Check if scrolling left kEvent = KeyEvent.KEYCODE_DPAD_LEFT; } else{ //Otherwise scrolling right kEvent = KeyEvent.KEYCODE_DPAD_RIGHT; } onKeyDown(kEvent, null); return true; }private boolean isScrollingLeft(MotionEvent e1, MotionEvent e2){ return e2.getX() > e1.getX(); }}
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