Question

android程序通过ViewFlipper实现滑动屏幕切换图片，可是没有效果，Activity都无法打开是什么原因造成的？

代码如下

package com.example.leslie_app;

import android.app.Activity;
import android.os.Bundle;
import android.view.MotionEvent;
import android.widget.ViewFlipper;

public abstract class zhangguorongxzh_Activity extends Activity {
ViewFlipper ViewFlipper=null;
float startX;

@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.zhangguorongxzhen);
init();
}
private void init() {
// TODO Auto-generated method stub
ViewFlipper=(ViewFlipper)super.findViewById(R.id.ViewFlipper);
}
@Override
public boolean onTouchEvent(MotionEvent event){
switch(event.getAction()){
case MotionEvent.ACTION_DOWN:
startX=event.getX();
break;
case MotionEvent.ACTION_UP:
if(event.getX()>startX){
ViewFlipper.setInAnimation(this,R.anim.in_left2right);
ViewFlipper.setInAnimation(this,R.anim.out_left2right);
ViewFlipper.showNext();
}else if(event.getX()<startX){
ViewFlipper.setInAnimation(this,R.anim.in_right2left);
ViewFlipper.setInAnimation(this,R.anim.out_right2left);
ViewFlipper.showPrevious();
}
break;
}
return super.onTouchEvent(event);
}

}

Answer 1

报错了吧，报的什么错拿出来看下

Answer 2

ViewFlipper=(ViewFlipper)super.findViewById(R.id.ViewFlipper);

super是干嘛用的。。。。去掉他试试！还有如果有问题最好把错误的locat发上来看看！