ViewFlipper和ViewPager挺像的,都是一个view容器。内部可以添加多个view,只是viewpager可以通过左右滑动来切换view,而viewFlipper则没有这个功能,所以需要在它上面监听手势。比较方便的是它不用使用适配器就能添加view,所以比较方便。
首先在布局文件中定义这个控件:
<&#63;xml version="1.0" encoding="utf-8"&#63;>
2.在代码中找到并且添加view
@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); detector = new GestureDetector(this); flipper = (ViewFlipper) this.findViewById(R.id.ViewFlipper01); flipper.addView(addTextView("page 1"));//添加view到flipper中,这里添加5个textView flipper.addView(addTextView("page 2")); flipper.addView(addTextView("page 3")); flipper.addView(addTextView("page 4")); flipper.addView(addTextView("page 5")); } /** * @param text * @return 一个textView对象 */ private View addTextView(String text) { TextView tv = new TextView(this); tv.setText(text); tv.setTextSize(40); tv.setTextColor(0xff000000); tv.setGravity(Gravity.CENTER); return tv; }
3.通过touch监听手势来切换view
@Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { if (e1.getX() - e2.getX() > 120) { this.flipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_in)); this.flipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_out)); this.flipper.showNext();//切换到下一个view return true; } else if (e1.getX() - e2.getX() <-120) { this.flipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_in)); this.flipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_out)); this.flipper.showPrevious(); return true; } return false; }
下面是Activity的完整代码:
package com.xu81.testflip; import android.app.Activity; import android.app.ActivityManager.RecentTaskInfo; import android.os.Bundle; import android.view.GestureDetector; import android.view.Gravity; import android.view.MotionEvent; import android.view.View; import android.view.GestureDetector.OnGestureListener; import android.view.animation.AnimationUtils; import android.widget.TextView; import android.widget.ViewFlipper; public class TestFlip extends Activity implements OnGestureListener { private ViewFlipper flipper; private GestureDetector detector; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); detector = new GestureDetector(this); flipper = (ViewFlipper) this.findViewById(R.id.ViewFlipper01); flipper.addView(addTextView("page 1"));//添加view到flipper中,这里添加5个textView flipper.addView(addTextView("page 2")); flipper.addView(addTextView("page 3")); flipper.addView(addTextView("page 4")); flipper.addView(addTextView("page 5")); } /** * @param text * @return 一个textView对象 */ private View addTextView(String text) { TextView tv = new TextView(this); tv.setText(text); tv.setTextSize(40); tv.setTextColor(0xff000000); tv.setGravity(Gravity.CENTER); return tv; } @Override public boolean onTouchEvent(MotionEvent event) { return this.detector.onTouchEvent(event); } @Override public boolean onDown(MotionEvent e) { // TODO Auto-generated method stub return false; } @Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { if (e1.getX() - e2.getX() > 120) { this.flipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_in)); this.flipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_out)); this.flipper.showNext();//切换到下一个view return true; } else if (e1.getX() - e2.getX() <-120) { this.flipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_in)); this.flipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_out)); this.flipper.showPrevious(); return true; } return false; } @Override public void onLongPress(MotionEvent e) { // TODO 自动生成的方法存根 } @Override public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { // TODO 自动生成的方法存根 return false; } @Override public void onShowPress(MotionEvent e) { // TODO 自动生成的方法存根 } @Override public boolean onSingleTapUp(MotionEvent e) { // TODO 自动生成的方法存根 return false; } }
动画文件:
push_left_in.xml
<&#63;xml version="1.0" encoding="utf-8"&#63;>
push_left_out.xml
<&#63;xml version="1.0" encoding="utf-8"&#63;>
push_right_in.xml
<&#63;xml version="1.0" encoding="utf-8"&#63;>
push_right_out.xml
<&#63;xml version="1.0" encoding="utf-8"&#63;>
源码下载:http://xiazai.jb51.net/201609/yuanma/AndroidViewFlip(jb51.net).rar
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。