实现滑动切换效果：ViewFlipper、OnGestureListener

本文主要是介绍实现滑动切换效果：ViewFlipper、OnGestureListener，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

例子中用到的三个主要控件：ViewFlipper、OnGestureListener、OnDoubleTapListener

GestureSlide_act.java文件

/*** 实现滑动切换效果：ViewFlipper、OnGestureListener* * * OnGestureListener和OnDoubleTapListener接口定义：
public interface OnGestureListener {  // Touch down时触发, e为down时的MotionEvent  boolean onDown(MotionEvent e); // 在Touch down之后一定时间（115ms）触发，e为down时的MotionEvent  void onShowPress(MotionEvent e);  // Touch up时触发，e为up时的MotionEvent  boolean onSingleTapUp(MotionEvent e);  // 滑动时触发，e1为down时的MotionEvent，e2为move时的MotionEvent  boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY);  // 在Touch down之后一定时间（500ms）触发，e为down时的MotionEvent  void onLongPress(MotionEvent e);  // 滑动一段距离，up时触发，e1为down时的MotionEvent，e2为up时的MotionEvent  boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY);  }  public interface OnDoubleTapListener {  // 完成一次单击，并确定没有二击事件后触发（300ms），e为down时的MotionEvent  boolean onSingleTapConfirmed(MotionEvent e);  // 第二次单击down时触发，e为第一次down时的MotionEvent  boolean onDoubleTap(MotionEvent e);  // 第二次单击down,move和up时都触发，e为不同时机下的MotionEvent  boolean onDoubleTapEvent(MotionEvent e);  }* * */import android.app.Activity;
import android.os.Bundle;
import android.view.GestureDetector;
import android.view.GestureDetector.OnDoubleTapListener;
import android.view.GestureDetector.OnGestureListener;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import android.widget.ViewFlipper;import com.example.R;public class GestureSlide_Act extends Activity implements OnGestureListener, OnDoubleTapListener {private ViewFlipper mViewFlipper;  private GestureDetector mGestureDetector; @Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);this.setContentView(R.layout.gestureslide_act);mViewFlipper = (ViewFlipper) findViewById(R.id.flipper);  Button button1 = (Button) findViewById(R.id.Button1);     button1.setOnClickListener(new View.OnClickListener() {     public void onClick(View view) {  mViewFlipper.showNext();     }     });  Button button2 = (Button) findViewById(R.id.Button2);     button2.setOnClickListener(new View.OnClickListener() {     public void onClick(View view) {  mViewFlipper.showNext();     }     });        Button button3 = (Button) findViewById(R.id.Button3);     button3.setOnClickListener(new View.OnClickListener() {     public void onClick(View view) {  mViewFlipper.showNext();     }  });  mGestureDetector = new GestureDetector(this);}//别忘了覆盖onTouchEvent方法  @Override  public boolean onTouchEvent(MotionEvent event) {  return mGestureDetector.onTouchEvent(event);  }  //以下是OnGestureListener需要实现的方法  public boolean onDown(MotionEvent e) {  return false;  }  public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,  float velocityY) {  if(e1.getX() > e2.getX()) {//向左滑动  mViewFlipper.setInAnimation(getApplicationContext(), R.anim.push_left_in);     mViewFlipper.setOutAnimation(getApplicationContext(), R.anim.push_left_out);     mViewFlipper.showNext();     }else if(e1.getX() < e2.getX()) {//向右滑动  mViewFlipper.setInAnimation(getApplicationContext(), R.anim.push_right_in);     mViewFlipper.setOutAnimation(getApplicationContext(), R.anim.push_right_out);     mViewFlipper.showPrevious();     }else {     return false;     }     return true;  }  public void onLongPress(MotionEvent e) {  }  public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,  float distanceY) {  return false;  }  public void onShowPress(MotionEvent e) {  }  public boolean onSingleTapUp(MotionEvent e) {  return false;  }  //以下是OnDoubleTapListener需要实现的方法  public boolean onDoubleTap(MotionEvent e) {  mViewFlipper.startFlipping(); //双击自动切换界面  Toast.makeText(GestureSlide_Act.this, "自动切换界面", Toast.LENGTH_SHORT).show();return true;  }  public boolean onDoubleTapEvent(MotionEvent e) {  return false;  }  public boolean onSingleTapConfirmed(MotionEvent e) {  if(mViewFlipper.isFlipping()){ //单击结束自动切换  mViewFlipper.stopFlipping(); Toast.makeText(GestureSlide_Act.this, "结束自动切换", Toast.LENGTH_SHORT).show();}  return false;  }  
}

gestureslide_act.xml文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical" ><ViewFlipperandroid:id="@+id/flipper"android:layout_width="fill_parent"android:layout_height="fill_parent"android:flipInterval="3000"android:inAnimation="@anim/push_left_in"android:outAnimation="@anim/push_left_out"android:persistentDrawingCache="animation" ><LinearLayoutandroid:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical" ><Buttonandroid:id="@+id/Button1"android:layout_width="fill_parent"android:layout_height="wrap_content"android:text="Next1" ></Button><ImageViewandroid:id="@+id/image1"android:layout_width="fill_parent"android:layout_height="wrap_content"android:src="@drawable/ic_launcher" ></ImageView></LinearLayout><LinearLayoutandroid:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical" ><Buttonandroid:id="@+id/Button2"android:layout_width="fill_parent"android:layout_height="wrap_content"android:text="Next2" ></Button><ImageViewandroid:id="@+id/image2"android:layout_width="fill_parent"android:layout_height="wrap_content"android:src="@drawable/ic_launcher" ></ImageView></LinearLayout><LinearLayoutandroid:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical" ><Buttonandroid:id="@+id/Button3"android:layout_width="fill_parent"android:layout_height="wrap_content"android:text="Next3" ></Button><ImageViewandroid:id="@+id/image3"android:layout_width="fill_parent"android:layout_height="wrap_content"android:src="@drawable/ic_launcher" ></ImageView></LinearLayout></ViewFlipper></LinearLayout>

参考文章：http://gundumw100.iteye.com/blog/905033

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